Rachel bought a book for $5.49 And a game for $10.98. She paid with a $20 bill. Which is the best estimate of the amount of change she should receive?

Answers

Answer 1
Rachel will have about $3.53 in change---------
Answer 2
So,
We can round 10.98 to 11 
We can round 5.49 to 5.50
11+5.50 = 16.50
20 - 16.50 = 3.5
So, the estimate of the amount of change Rachel would receive is $3.50.

Related Questions

Which of the following numbers are divisible by 2? 74 , 296, 1110, 148, 370, 666, 9324, 111, 37, 555 , or 333?

Answers

All the even numbers r divisible by 2.
Which means the answer is 74, 296, 1110, 148, 370, 666, 9324.

One evening, 2/3 of the students in Rick's class watched television.

Answers

is there any information or even a problem to be solved?

It takes a boat 2 hours to travel 22 miles downstream and 4 hours to travel 20 miles upstream. What is the speed of the boat in still water?

Answers

Let  b= speed of boat in still water
Let  c= speed of current
Upstream
Speed is ; b-c
d u=(b-c)* t u

Downstream
speed is ; b+c
d d=(b+c)*t d

given:
d u=18
t u=3
d d=24
t d=2


------------------
(1) 18=(b-c)*3
(2) 24=(b+c)*2
and
(1) 18=3b-3c
(2) 24=2b+c
Multiply both sides of (1) by 2
Multiply both sides of (2) by 3

(1) 
(2) 
Add (1) and (2)


And, from (1),
18=3*9-3c
3c=27-18
3c=9
c=3
The speed of the boat in still water is 9 mi/hr
The speed of the current is 3 mi/hr
check:
(1) 18=(9-3)*3
(2) 24=(9+3)*2
and
(1) 18=16*3
18=18
(2) 24=24

Anyone knows??? And like to help

Answers

6a.
Let the price of a ticket be t.
t - 2 = 7

6b.
The number of gallons is g.
7 = 2g

6c.
Sorry, but I don't know what problem 5 was, so I can't answer.

Which is the most accurate way to estimate 23% of 70?

Answers

It would be what is 20% of 70. x = 20/100 x 70 = 14
20% of 70 is 14
Hi there! The most accurate way to estimate 23% of 70 is to write and solve a proportion. You would write it out as x/70 = 23/100, because we’re looking for the number that is 23% of 70. Cross multiply the values to get 1,610 = 100x. Divide each side by 100 to isolate the “x”. When you do, you get x = 16.1. There. 23% of 70 is 16.1.

What is the simplified form of the following expression

Answers

Final answer:

To simplify the given expression, factor out the common factors from the denominator and rewrite the expression using the factored form.

Explanation:

To simplify the given expression, we first need to simplify the denominator. This can be done by factoring out a common factor of 4 from each term:

(4a + 2)(2a - 3)

Next, we can rewrite the expression using the factored form:

1 / (4a + 2)(2a - 3)

This is the simplified form of the given expression.

The answer is c. [tex]$\frac{\sqrt[3]{20 x}}{5}$[/tex]

Separate the cube root: We can break down the cube root of a fraction into the cube root of the numerator divided by the cube root of the denominator:

[tex]\sqrt[3]{\frac{4 x}{5}} = \frac{\sqrt[3]{4 x}}{\sqrt[3]{5}}[/tex]

Simplify the cube root of 5: Since 5 is a perfect cube (5 = 1 * 5 * 5), its cube root is simply 5:

[tex]\frac{\sqrt[3]{4 x}}{\sqrt[3]{5}} = \frac{\sqrt[3]{4 x}}{5}[/tex]

Rationalize the denominator: To make the expression look more simplified, we can eliminate the cube root in the denominator. We do this by multiplying both the numerator and denominator by the cube root of 5:

[tex]\frac{\sqrt[3]{4 x}}{5} \times \frac{\sqrt[3]{5}}{\sqrt[3]{5}} = \frac{\sqrt[3]{4 x} \times \sqrt[3]{5}}{5 \times \sqrt[3]{5}}[/tex]

This simplifies to:

[tex]\frac{\sqrt[3]{20 x}}{5}[/tex]

Therefore, the simplified form of the expression is [tex]$\frac{\sqrt[3]{20 x}}{5}$[/tex].

Complete Question:

What is the simplified form of the following expression?

[tex]\sqrt[3]{\frac{4 x}{5}}[/tex]

a. [tex]$\frac{\sqrt[3]{4 x}}{5}$[/tex]

b. [tex]$\frac{\sqrt[3]{20 x}}{5}$[/tex]

c. [tex]$\frac{\sqrt[3]{100 x}}{5}$[/tex]

d. [tex]$\frac{\sqrt[3]{100 x}}{125}$[/tex]

Frank's Factories has a staff of sales people like Anthony, who receives a monthly salary of $2,750.00 plus an incremental commission based on the table below. If he sells $27,300.00, what is his total gross pay for the month?

Answers

The total gross pay for the month is $3,930.80 if Frank's Factories has a staff of salespeople like Anthony, who receives a monthly salary of $2,750.00.

What is the percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that:

Frank's Factories has a staff of salespeople like Anthony, who receives a monthly salary of $2,750.00 plus an incremental commission based on the table below. If he sells $27,300.00,

Fixed monthly salary = $2,750.00

First commission = 4.1% of 15,000 = $615.00

Second commission = 4.6% of (27300 - 15000) = $565.00

Total gross pay for the month = $2,750.00 + $615.00 + $565.80

= $3,930.80

Thus, the total gross pay for the month is $3,930.80 if Frank's Factories has a staff of salespeople like Anthony, who receives a monthly salary of $2,750.00.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

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To calculate Anthony's total gross pay for the month, consider his base salary and incremental commission based on sales, resulting in a total gross pay of $4,934.00.

To calculate Anthony's total gross pay for the month, we need to consider his base salary and incremental commission based on sales.

Base salary: $2,750.00

Commission on $27,300.00 sales: Using the incremental commission table, the commission percentage for sales between $27,194-$31,479 is 8%. Thus, commission = $27,300.00 * 8% = $2,184.00

Total gross pay = Base salary + Commission = $2,750.00 + $2,184.00 = $4,934.00

Opening up the monthly cell phone bill can be alarming due to the uncertainty of the bill. suppose the amount of minutes used per month is distributed normally with a mean of 700 minutes and a standard deviation of 120 minutes. what is the probability that more than 940 minutes were used?

Answers

Given the mean of 700 min. and the std. dev. of 120 min., we need to find the z-score for 940 minutes and then the area under the std. normal curve to the right of that z-score.
                                                        940 - 700
The applicable z score here is z = ----------------- = 2.  What is the area under
                                                              120
the curve and to the right of 2 std. deviations from the mean?

You could find the answer from a table of z-scores, or you could take advantage of the empirical rule.  The empirical rule states that 95% of the normally distributed data set lies within 2 std. dev. of the mean.

The area to the right of z=2 is 0.5 (half the area under the std. normal curve) less 0.95/2, that is, less 0.475.

Subtracting 0.475 from 0.500 yields 0.025 (answer).  2.5% of the time, the monthly phone bill will exceed 940, or 2 std. dev. above the mean.

Answer:

the required probability = 0.25

Step-by-step explanation:

Mean = 700 minutes , Standard Deviation = 120 minutes

To find : the probability that more than 940 minutes were used.

Solution : First find the z-score for 940 minutes and then find the area under the curve to the right of associated standard deviations from the mean.

[tex]z-score=\frac{\mu_2-\mu_1}{\sigma}\\\\\mu_1=700,\mu_2=940,\sigma=120\\\\\implies z-score=\frac{940-700}{120}\\\\\implies z-score=2[/tex]

Now, calculate the area under the curve to the right of 2 standard deviations from the mean.

Take confidence level to be 95%.

The area to the right of 2 standard deviations is 0.5 that is half the area under the standard normal curve.

[tex]\implies Area < \frac{0.95}{2}\\\\\implies Area<0.475[/tex]

Now, to find the probability that more than 940 minutes were used = 0.5 - 0.475 = 0.25

Hence, the required probability = 0.25

which number line represents the solutions to |-2x|=4?

Answers

the answer would be -2 because -2 times -2 equals 4 because two negative equals a positive and a negative and a positive equals a negative.REMEBER THAT
Solve for x by simplifying both sides of the equation, then isolating the variable.

x=-2,2

There were​ 36,000 people at a ballgame in los angeles. the​ day's receipts from​ $12 reserved seats and​ $6 general-admission seats were​ $258,000 how many of each type of seat were​ sold?

Answers

There would be 9,000 tickets sold at the $12 price point and 25,000 tickets sold at the $6 price. (25,000 x 6 = $150,000. 9,000 x $12 = $108,000. $150,000 + $108,000 = $258,000).

Simplify.



16.3 – (–4.2) + 15.9

Answers

16.3 - (-4.2) +15.9 =

16.3 + 4.2 + 15.9 =

36.4


Follow the order of operations, since there is only addition and subtraction start from left to right.

16.3 - (-4.2) = 20.5 + 15.9 = 36.4

Line s is the perpendicular bisector of JK. If line s intersects JK at point L, which of the following statements must be true? Check all that apply. A. Line s is perpendicular to JK B. JL = KL C. Line s is parallel to JK D. Point L is the midpoint of JK E. Line s intersects JK at a 180 angle

Answers

Sent a picture of the solution to the problem (s).
Final answer:

Line s, being the perpendicular bisector of JK, must be perpendicular to JK at point L, making JL equal to KL and meaning that point L is the midpoint of JK.

Explanation:

If line s is the perpendicular bisector of segment JK and intersects it at point L, we can determine several truths about the geometric relationship between these elements:

A. Line s is perpendicular to JK: Yes, this is true because by definition, a perpendicular bisector not only cuts a line segment into two equal parts but also does so at a 90° angle.B. JL = KL: This statement must also be true. Since line s is a bisector, it divides JK into two equal parts, hence JL (the length from J to L) is equal to KL (the length from K to L).D. Point L is the midpoint of JK: True again, as the point where the perpendicular bisector intersects the line segment is known as the midpoint, implying that point L is equidistant from both J and K.

Statements C and E are incorrect. Line s cannot be parallel to JK as it intersects it, and a 180° angle refers to a straight line, not the angle formed by a perpendicular intersection.

Which is the graph of the function f(x) = x2 + 2x – 6? Mark this and return

Answers

Vertex: ( -1, -7 )

Focus: ( -1, -27/4 )

Axis of Symmetry: x = -1

Directrix: y = -29/4


X | Y
———
-3| -3
-2| -6
-1 | -7
0 | -6
1 | -3
Final answer:

The graph of the function f(x) = x² + 2x − 6 is an upward-opening parabola with the vertex at (-1, -7) and a y-intercept at (0, -6). There are no asymptotes for this quadratic function.

Explanation:

To find the graph of the function f(x) = x² + 2x − 6, we need to look at the characteristics of this quadratic equation. This is a parabola that opens upward because the coefficient of is positive. We can find the vertex of this parabola by using the formula -b/2a for the x-coordinate of the vertex.

Here, a = 1 and b = 2. Applying the formula, we get the x-coordinate of the vertex as -b/2a = -2/(2×1) = -1. Now, we plug this value back into the function to get the y-coordinate of the vertex: f(-1) = (-1)² + 2(-1) − 6 = 1 - 2 - 6 = -7. Therefore, the vertex of the parabola is at (-1, -7). The parabola will intersect the y-axis when x = 0, which gives us the y-intercept f(0) = -6. No asymptotes are present in this quadratic function.

The graph of f(x) is symmetrical about the line x = -1 and has a y-intercept at (0, -6). The vertex at (-1, -7) is the lowest point on the graph since the parabola opens upwards. Thus, we are looking for a graph with these characteristics to represent the function f(x) = x² + 2x − 6.

Liliana takes 4 breaths per 10 seconds during yoga. At this rate, about how many breaths would Liliana Take in 2 minutes of yoga?

Answers

There are 60 seconds in a minute so, 10 seconds is 1/6 of a minute. Therefore, 4 times 12 equals 48 breaths.

Which of these story problem describes the sum 19 + (-12)? Check all that apply. Show your work to justify your answer.

Answers

-19 + (-12) = 7

Remove Parentheses  
( -a ) = -a 

= 19 - 12
Subtract The Numbers 
19-12 = 7

Andrew has 10 more goldfish than todd.together they have 50 goldfish.how many goldfish each boy have?

Answers

Andrew has 30
Todd has 20

Answer:

Andrew has 30 goldfish and Todd has 10 goldfish

Step-by-step explanation:

Lets call A the number of goldfish Andrew has and T the number of goldfish Todd has.

Andrew has 10 more goldfish than Todd:

A = T + 10

Together they have 50 goldfish:

A + T = 50

Lets replace A = (T + 10) in the las equation:

T + 10 + T = 50

Lets solve T in this equation:

2T + 10 -10 = 50 -10

2T /2 = 40 /2

T = 20

Todd has 20 goldfish

Now lets calculate A = T + 10 = 20 + 10 = 30

Andrew has 30 goldfish

A pinewood derby car can be at most 2 3/4 inches wide. About how many pinwood derby cars can be displayed side-by-side on a shelf that is 31 1/2 inches long?

Answers

11 is the answer. To get the answer you have to divide 31 1/2 by 2 3/4.
Final answer:

About 5 11/22 pinewood derby cars can be displayed side-by-side on a shelf that is 31 1/2 inches long.

Explanation:

To find out how many pinewood derby cars can be displayed side-by-side on a shelf, we need to divide the length of the shelf by the width of each car. The shelf is 31 1/2 inches long, and each car can be at most 2 3/4 inches wide. So we divide 31 1/2 by 2 3/4:




Convert the mixed number 2 3/4 to an improper fraction: 2 3/4 = 11/4.
Divide 31 1/2 by 11/4: 31 1/2 ÷ 11/4 = 31 1/2 × 4/11 = 126/22 = 5 11/22.



Therefore, about 5 11/22 pinewood derby cars can be displayed side-by-side on the shelf.

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The formula for the circumference C of a circle, in terms of the radius, is C=2πr, where r stands for the radius. Rearrange the quantities in this formula to give a new formula for the radius of a circle in terms of the circumference.

A. r= 2C/3.14

B. r=3.14/2C

C. r=C/2(3.14)

D. r= 1/2(3.14)C

Answers

Final answer:

To get the radius of a circle in terms of circumference, divide the formula for the circumference by 2π, thus r=C/(2π). The correct option is C: r=C/2(3.14), considering 3.14 is the approximate value of π.

Explanation:

The formula for the circumference of a circle is given by C=2πr. We are asked to rearrange this formula to make the radius (r) the subject of the formula. To achieve this, we divide both sides of the equation by 2π.

So, dividing both sides of the equation by 2π gives r=C/(2π).

Looking at your options, Option C: r=C/2(3.14), is correct if we consider 3.14 to be the value of π. Therefore, the radius of a circle in terms of the circumference is given by r=C/(2π).

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a rectangle has a side length 2x+9 and side width x. If the perimeter is 36 cm, what is the value of x?

Answers

2(2x + 9) + 2(x) = 36

4x + 18 + 2x = 36

Combine like terms.

6x + 18 = 36

Subtract 18 from both sides.

6x = 18

Divide 6 on both sides.

x = 3

Hope this helps!

On Anne's bicycle, the ratio of pedal turns to rear- wheel turns in second gear is 4 to 7. If her rear wheel turns 875 times per mile, how many times does she turn the pedal in one mile? HINT: Set up and solve as a proportion to find x.

Answers

4 / 7 = x / 875....4 pedal to 7 rear = x pedal to 875 rear
cross multiply
(7)(x) = (4)(875)
7x = 3500
x = 3500/7
x = 500 <== she turns the pedal 500 times in 1 mile

Please help..click on picture...I rrally need help

Answers

so the students are on 5:6 ratio from volleyball to football, and we know there are 220 students in total.

[tex]\bf \cfrac{volleyball}{football}\qquad 5:6\qquad \cfrac{5}{6}\implies \cfrac{5\cdot \frac{220}{5+6}}{6\cdot \frac{220}{5+6}}\implies \cfrac{5\cdot 20}{6\cdot 20}\implies \cfrac{100}{\stackrel{football}{120}}[/tex]

Which equation represents a direct variation? y = 2x y = x + 4 y = x y =

Answers

The first equation is a direct variation. This type of equation has a form that is "y = kx," in which k is the constant. Changing both sides by a common multiple will still lead to the equation being evaluated as true, since the values will both increase by that multiple.

which of the following three dimensional objects has Rotational symmetry about a line A.a car. B.a set of rectangular stairs. C. a rolling pin. D.a stapler

Answers

Answer:

C. a rolling pin.

Step-by-step explanation:

A rolling pin has a cylindric shape, which is a revolution surface. This means that the rolling pin is symmetric about a line or axis, therefore, it can be rotated around it.

Final answer:

A rolling pin has rotational symmetry about its longitudinal axis, making it the correct answer, while a car, a set of rectangular stairs, and a stapler do not demonstrate this symmetry.

Explanation:

The question relates to the concept of rotational symmetry in three-dimensional objects, which is a part of the study of Physics, specifically dealing with rotational motion. The answer to which of the listed objects has rotational symmetry about a line is C. a rolling pin. A rolling pin has rotational symmetry because when it rotates about its longitudinal axis, its appearance is unchanged after a certain angle of rotation. In contrast, objects like a car, a set of rectangular stairs, and a stapler do not exhibit this symmetry because their appearance changes visibly when they are rotated about any line.

Which of these statements is true?
A) 4 x 5 – 7 + 9 = 28
B) 4 x 5 – (7 + 9) = 22
C) 4 x 5 – (7 + 9) = 4
D) 4 x 5 – 7 + 9 = 44

Answers

the correct answer is C

Which function represents the graph of f(x)=|2x| after it is translated 5 units to the left?



g(x)=|2(x−5)|

g(x)=|2x+5|

g(x)=|2x−5|

g(x)=|2(x+5)|

Answers

Answer:

g(x) = |2(x+5)|

Step-by-step explanation:

To translate a function left 5 units, replace x with (x+5). In this function, that means

  2x ⇒ 2(x+5) . . . . . matches the last choice

Please answer ASAP: Determine which of the following situations can be modeled by the ratio 7/2. Select all situations that apply
For every twenty-eight cats, there are 4 dogs
Sara runs an average of fourteen miles every four days.
An online clothing store charges $7.50 to ship ten clothing items
A recipe calls for 3 cups of flour for every 1 cup of sugar.
Bottled water is on sale this week for a rate of $1.50 for two bottles

Answers

the only one that applies is:

Sara runs 14 miles every 4 days = 7 miles every 2 days = 7/2


Find the absolute value of the jacobian, ∣∣∂(x,y)∂(s,t)∣∣, for the change of variables given by x=s+5t,y=3s+8t

Answers

[tex]\left\|\dfrac{\partial(x,y)}{\partial(s,t)}\right\|=\left|\begin{vmatrix}\dfrac{\partial x}{\partial s}&\dfrac{\partial x}{\partial t}\\\\\dfrac{\partial y}{\partial s}&\dfrac{\partial y}{\partial t}\end{vmatrix}\right|=\left|\begin{vmatrix}1&5\\3&8\end{vmatrix}\right|=|-7|=7[/tex]

Mr. and mrs. harris have six kids aged 5, 6, 8, 10, 16, and 19. the median age of the harris children is _____.

Answers

I think the median age is 9

Answer:

The median age is 9 years old

Step-by-step explanation:

We can find the median by getting the average of the center number of the middle two numbers

8 and 10 are the two middle numbers in this scenario.  8 + 10 = 18

18/2 = 9

14.4% of what is 10.44

Answers

Convert 14.4% into the decimal fraction 0.144.  Then 0.144x = 10.44.

Dividing both sides by 0.144, x = 10.44/0.144 = 72.5.

The "what?" is 72.5.

what is 16 divided by 7? and give me a real answer.

Answers

16/7 is already in lowest terms. It cannot be further reduced.

You can write this fraction as a decimal by simply dividing the top by the bottom.

So, 16/7 = 2.2857142857

Nothing else can be done here.
16/7 cannot be divided any further. It can only be put in decimal or mixed fraction form. In mixed fraction:
16 divided by 7 is 2 remainder 2. That will be 2 2/7
The numerator is the remainder. The denominator remains the same. The whole number is the number from the division.
In decimal, it is 2.286
Hope I helped. Goodluck
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