45 decrease by twice a number

Answers

Answer 1
To solve this, we simply need to break down  and comprehend the words and form our equation.

"45 decreased by"
This shows that we are going to be subtracting 45 by something.
45-

"twice a number"
The "twice" implies that it is going to be 2 multiplied by something, and "a number" represents our variable, n.
45-2n

Using the logic above, we can see the equation to represent this phrase is 45-2n.



Related Questions

The product of the slopes of two non-vertical perpendicular lines is always -1. It is NOT possible for two perpendicular lines to both have a positive slope because the product of two positives is positive. So for the product of the slopes to be -1, one of the slopes must be positive and the other negative.

True
False

Answers

I think it might be false hope I'm right

how may ounces of trail mix are in a bag that weighs 0.681 kilograms?

Answers

keeping in mind that there are 35.27337 oz in 1 Kg, how many in 0.681kg?

[tex]\bf \begin{array}{ccll} kg&oz\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 1&35.27337\\ 0.681&x \end{array}\implies \cfrac{1}{0.681}=\cfrac{35.27337}{x}\\\\\\ x=\cfrac{0.681\cdot 35.27337}{1}[/tex]

At Cooper High School, jazz band is only offered as a zero-hour (before school) class. Dan has a zero-hour class. Conjecture: Dan is in jazz band. Use deductive reasoning to verify the conjecture, or provide a counterexample if the conjecture is false. A. true; law of detachment B. true; law of syllogism C. false; Dan may be enrolled in a different zero-hour class D. false; Dan can never be in jazz band

Answers

I would say this is false because Dan may be in another zero hour class.

C.

PLEASE SHOW WORK
Solve for the formula for the variable x

ax+5=by-10

Answers

ax+5=by-10
ax =by-10 - 5
ax = by - 15
  x = (by - 15) / a

hope it helps

The sum of two numbers is 55 and the difference is 1 . What are the numbers?

Answers

27 and 28 because their sum is 55 and 28-27=1

Find four consecutive integers whose sum is 106

Answers

the sum of 106 is 100 and 10

the sum of three numbers is 64. the second number is 3 more than the first. the third number is 11 less than twice the first. find the numbers

Answers

x = 18
.
y = x+3 = 21
z = 2x -11 = 2(18) -11 = 36-11 = 25
.
x + y + z = 18 + 21 + 25 = 64
Correct.
.
Answer: The three numbers are 18, 21, and 25.

Choose the list that shows these numbers in order from largest to smallest.

0.63, 0.58, 0.059, 0.06

A.) 0.63, 0.58, 0.06, 0.059
B.) 0.58, 0.63, 0.06, 0.059
C.) 0.06, 0.58, 0.059, 0.63
D.) 0.059, 0.06, 0.58, 0.63

Answers

greatest to least : 0.63 , 0.58, 0.06, 0.059

u basically start by looking at the first number to the right of the decimal...look at only that one number....now which one is biggest...it is the 6 in 0.63....now continue doing that and u will see that the 5 in 0.58 comes next...but then ur left with 2 numbers that have a 0 in that spot...so move over another number (to the right)...and compare those numbers....so the next one is the 6 in 0.06...and lastly, the 0.059.
Final answer:

The largest to smallest order of the numbers 0.63, 0.58, 0.059, and 0.06 is 0.63, 0.58, 0.06, 0.059. This corresponds to option A, which is accurate when comparing decimal place values.

Explanation:

The question asks to arrange the given decimal numbers in order from largest to smallest. To do this, compare each decimal place value one by one from left to right. Starting with the first decimal place, select the largest digit to determine the largest number. Once the largest number is identified, move on to the next largest, and so on, until all numbers are ordered.

Comparing the whole numbers: 0.63, 0.58, 0.06, 0.059, we can see:

0.63 is the largest because it has the largest value in the tenths place (6), and the next number is 3.0.58 is the next largest because the tenths place is 5 and the hundredths place is 8, which is larger than the hundredths place of 0.59.0.06 is larger than 0.059 because when comparing numbers with the same digits leading up to the last place, the number with fewer decimal places is larger.

Therefore, the correct order from largest to smallest is 0.63, 0.58, 0.06, 0.059. The correct answer is option A: 0.63, 0.58, 0.06, 0.059.

Can someone help me on problem 79

Answers

79

a) the multiplier would be 1 - 0.15 = 0.85

b) value = 27,000*0.85^y ( with y being the number of years)

c) y = 5 years

27000 x 0.85^5 = 11980.04

 the car will be valued at $11,980.04 after 5 years

Jamaal studied h hours for a big test. Karla studied one fourth as long. Write an algebraic expression for the length of time Karla studied. Use this expression to determine the length of time that Karla studied if Jamaal studied for 5 hours and 20 minutes.

Answers

Let's assign variable x to denote the number of hours for Karla to study. Since the relationship is relative to Jamaal's hours, the equation for Karla's hours would be:

x = (1/4)h

So, if Jamaal studied h = 5 h + (20 min* 1 h/60 min) = 16/3 or 5.333 hours. Thus, Karla's hours would be

x = (1/4)(16/3) = 1.33 hours or 1 hour and 20 minutes.

geometry problem help

Answers

Refer to the attached image. You'll see angle CXP up in the top left corner. In the bottom right corner is angle SYD which is congruent to CXP as they are alternate exterior angles. These angles are marked in green.

They are outside of the "train tracks" (aka the parallel lines), and they lie on opposite sides of the transversal line.

This is why the answer is choice B

for the expoential function y= ab^x, which of the following value(s) would produce an expoential decay function?

a. 0<b<1
b. a<0
c. b>1
d.b<0

Answers

Hello.

A decay function has a distinctive comportment: 

"If a < b, therefore f(a) > f(b)"

So, the function must assume smaller values as x grows.

This is accomplished when 0 < b < 1

Answer:

its a but what would it be if it was a growth

Step-by-step explanation:

Suppose a system of equations has fewer equations than variables and you have found a solution to this system of equations. is it possible that your solution is the only one? explain.

Answers

If you've guessed the solutions, good for you.  But if they are linear equations, they will only intersect each other graphically at one point.  So no  there is not another solution.

The longest stem on elis geranium plant is 7.24 inches. write 7.24 in word form answer

Answers

when we write 7.24 inches in a word form we can write it as seven point twenty four or seven and twenty four hundredths.
when we write digits in to a sentence that is word form of numbers.

1) Convert 3/5 to a decimal (show work)
2)Convert 3 8/10 to a decimal (show work)
3)Convert 5/9 to a decimal (show work)

Answers

1) To convert 3/5 to a decimal, we first multiply the numerator and denominator by 2 to obtain 6/10. One tenth is 0.1, so 6/10 is 6 times 0.1, or 0.6. 2) To convert 3 8/10 to a decimal, we see that 3 can be seen as a whole-number decimal, and 8/10 is 8 times 0.1, or 0.8. Adding these, we obtain 3.8. 3) We cannot write 5/9 as a decimal that terminates, but we can approximate 5/9 as a decimal. First, we multiply the numerator and denominator by 111, giving 555/999. Then we say that 999 is approximately 1000, so 555/999 is approximately 555/1000. Since 1/1000 is 0.001, then 555/999 is approximately 555 times 0.001, or 0.555.

Rita's score is 13 more than 2 times milan score. if we let y represent milan's score, write an algebraic expression for rita's score.

Answers

Final answer:

Rita's score is expressed algebraically by the expression 2y + 13, where y represents Milan's score.

Explanation:

Rita's score can be expressed algebraically in terms of Milan's score. Given that y represents Milan's score, the problem statement tells us that Rita's score is 13 more than 2 times Milan's score. So, we can write Rita's score as 2y + 13. To translate this into an algebraic expression, we start with Milan's score y, multiply it by 2 to get '2 times Milan's score', and then add 13 to get '13 more than 2 times Milan's score', which results in our final expression, 2y + 13.

This expression shows us how to calculate Rita's score based on any given value for Milan's score.

What is the median of the data (180,175,163,186,153,194,198,183,187,174,177,196,162,185,174,195,164,152,144,138,125,110)

Answers

put them in order from smallest to largest
110, 125, 138 , 144, 152,153,162, 163,164, 174, 174, 175, 177,180,183,185, 186,187, 194,195, 196,198

median = (174 + 175 )/2 = 174.5

answer
174.5


put them in order from the smallest to the largest:
110, 125, 138 , 144, 152,153,162, 163,164, 174, 174, 175, 177,180,183,185, 186,187, 194,195, 196,198


 find the 2 middle numbers, in this case 174 & 175

the  median is the average of those 2 numbers:

 (174 + 175 )/2 = 174.5

 the median = 174.5

Jan works from 30 to 40 hours per week during the summer. she earns $12.00 per hour. her friend rachel also has a job. rachel's pay for t hours is given by the function r(t) = 11t, where 20 ≤ t ≤ 30. find the domain and range of each function. compare their hourly wages and the amount they earn per week.

Answers

Jan earns between $360 and $480. While Rachel earns between $220 and $330. Jan's hourly wage is $12 and Rachel's is $11. 
Final answer:

Jan's function has a domain of [30, 40] and a range of [$360, $480]. Rachel's function has a domain of [20, 30] and a range of [$220, $330]. Jan earns $12 per hour and can earn between $360 and $480 per week, while Rachel earns $11 per hour and can earn between $220 and $330 per week.

Explanation:

The domain of Jan's function is the range of hours she works per week, which is between 30 and 40, denoted by [30, 40]. The range of Jan's function is the amount of money she earns per week, which is calculated by multiplying her hourly wage ($12) by the number of hours she works (30 to 40 hours). So, the range of Jan's function is [$360, $480].

Similarly, Rachel's function is given by r(t) = 11t, where t represents the number of hours she works per week. The domain of Rachel's function is the range of hours she works per week, which is between 20 and 30, denoted by [20, 30]. The range of Rachel's function is the amount of money she earns per week, calculated by multiplying her hourly wage ($11) by the number of hours she works (20 to 30 hours). So, the range of Rachel's function is [$220, $330].

Comparing their hourly wages, Jan earns $12 per hour while Rachel earns $11 per hour. Comparing the amount they earn per week, Jan can earn between $360 and $480 per week while Rachel can earn between $220 and $330 per week.

How do you use the product of 123 times 47 to find the product of 123 times 0.47 explain the difference in the two products?

Answers

123•47=5781
123•0.47=57.81

you can use the product of 123•47 to help you solve for the product of 123•0.47 by seeing that all you do is move the decimal yo the left 2 spaces. The reason you move the decimal to the left 2 spaces is because 47 is 0.47 just the decimal was moved 2 spaces to the right.

translate into an equation Find three consecutive even integers whose sum is negative eighteen

Answers

well if your sum is -18 then you know your answers are going to be negative numbers. 

make x be your first unknown negative even integer. you want your negative x and then negative x minus two and negative x minus four 

x1= x 
x2= x-2 
x3= x-4 

you know all three need to equal -18 

solve for x: 
-18= -x + (-x-2) + (-x-4) 

-18 = -x-x-2-x-4 
-18+2+4= -3x 
12=-3x 

12/-3=x 

-4=x 

then plus x into the first problem. 

x1= -4 = -4 
x2= -4-2 = -6 
x3= -4-4 = -8 


so your integers would be -4, -6, and -8 

check: 
(-4) + (-6) + (-8) = -18 

let me know if you have any questions. 

−20 ≤ 59(F−32) ≤ −15

Answers

We take the value of F in the inequality by taking the inequalities in group. Let the first group be:

(1)    -20 ≤ 59(F - 32)

Then, the second group would be,
(2)     59(F - 32) ≤ - 15

Calculating for the values of F,

(1)     -20 ≤ 59F - 1888
          1888 - 20 ≤ 59F
              1868 ≤ 59F
                 F ≥ 31.66

(2)     (59)(F - 32) ≤ - 15
             59F - 1888 ≤ -15
             59F ≤ 1873
                F ≤ 31.75

The values of F are therefore,
               31.66 ≤ F ≤ 31.75

To solve the inequality −20 ≤ 59(F−32) ≤ −15, divide by 59 and then add 32 to isolate the variable F, resulting in the range 31.661°F to 31.746°F.

Inequality Solution

Let's solve the compound inequality −20 ≤ 59(F−32) ≤ −15 step by step.

First, we need to isolate the variable term by dividing all parts of the inequality by 59.
−20/59 ≤ F − 32 ≤ −15/59.This simplifies to approximately:
−0.339 ≤ F − 32 ≤ −0.254.Next, we solve for F by adding 32 to all parts of the inequality:
32 - 0.339 ≤ F ≤ 32 - 0.254,
which simplifies to approximately:
31.661 ≤ F ≤ 31.746.

Therefore, the Fahrenheit temperature F is in the range of approximately 31.661°F to 31.746°F.

What The length of AC?

Answers

If Angle C is 53° then angle A=42°

sin 42°/85=sin 85°/AC
==>AC=sin 85° *85 /sin 42°=126.54711....
A= 42 ° . 180- 138= 42. You get 138 from adding the angles given together (85+53)

At the end of the first day, 7 weeds appear in your neighborhood park. each day, the number of weeds increases by four times. how many weeds will be in the park at the end of 14 days?

Answers

7^14=
6782230728497 to the power of 14 (days) 

A rectangle has an area of 48 cm^2 and a perimeter of 38 cm. what are the dimensions of the rectangle?

Answers

Final answer:

We infer from the question that the dimensions of the rectangle, satisfying both the given area of 48 cm² and the given perimeter of 38 cm, are 12 cm x 4 cm.

Explanation:

The topic of this question relates to the geometrical concept of rectangles. We know that the area of a rectangle is determined by the formula Area = length * width and the perimeter is given by the formula Perimeter = 2*(length + width). Given that the area is 48 cm² and the perimeter is 38 cm, we can set up the following equations:

Area = length * width = 48Perimeter = 2*(length + width) = 38

Since the Perimeter and Area involve both length and width, we use simultaneous equations to solve this. By trial and error or via substitution method, we find that the dimensions satisfying both conditions are: length = 12 cm and width = 4 cm. Therefore, the dimensions of the rectangle are 12 cm x 4 cm.

Learn more about Rectangle Dimensions here:

https://brainly.com/question/31677552

#SPJ12

Which number is irrational?
A: 0.277277277...
B:0.333...
C:pie
D:0.7

Answers

The correct answer would be C) Pi.
It is irrational because it cannot be written as a ratio (or fraction)

Answer:

PI or 0.333333333333333333333333333

#1 please help fr fr

Answers

I can't really see the problem. It's way too blurry

It's way too blurry for me too. perhaps make one that's clearer so we could answer?

A vending machine has three different choices of drink: lemonade (L), cola (
c. and orange (O).  Unfortunately, it has been filled at random and you cannot choose the drink you want. You are going to buy two drinks. This is a list of some of the combinations of drink that you could end up getting. CO, OL, LL, CL, CC, Which combination of drinks have you missed from the list?

Answers

you missed OO (double orange)

There are 9cans that can store 45 tennis balls what is the constant of the proportionality for this situation

Answers

Let the total number of cans be x and the total number of tennis balls be y,

Since increasing the total number of cans causes the total number of tennis balls to increase too, x and y is direct in proportion.

Let the constant be k,
y = kx
45 = k9
k = 45/9
= 5

The constant of the proportionality for this situation is 5.

In geotown, there are 210 teenagers that own a tablet.This is at least 4/5 of all teenagers that live in geotown.What is the maximum number of teenagers who live in geotown?

Answers

Let x = the number of teenagers in Geotown.

At least 4/5 of x equals 210. Therefore
(4/5)x ≥ 210
Multiply each side by 5.
4x ≥ 210*5 = 1050
x ≥ 1050/4 = 262.5

Because x ≥ 262.5,  therefore x = 263 (x must be an integer).

Answer: 263

we have to solve for D

Answers

Since in the original equation, there is √d, to isolate the variable, we must square both sides.

(√d)²= (4h)²
d= 16h^2

Final answer: d= 16h^2
[tex] \sqrt{d} = 4h[/tex] 

      [tex]\text{Square both sides}[/tex] 

[tex]d=16h^2 [/tex]
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