What is 5 times 6 minus 3

Answer:

0.65

Step-by-step explanation:

To get 13/20 to a decimal, the denominator needs to be multiplied by 5 to make it 100. If you multiply the denominator, you also have the multiply the numerator to make it equal. 13 x 5 is 65. The fraction is 65/100, which is 0.65 in decimal form.

13/20 as a decimal is 0.65.

To write 13/20 as a decimal, you can follow the hint provided.

First, we need to find a factor that will make the denominator 100. In this case, multiplying the denominator by 5 will give us 100.

So, we need to multiply both the numerator and the denominator of 13/20 by 5:

13/20 x 5/5 = 65/100

Now, we have 65/100 as the fraction.

To convert it to decimal form, divide the numerator by the denominator:

65 ÷ 100 = 0.65

Therefore, 13/20 as a decimal is 0.65.

Learn more about decimal form click;

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#SPJ6

Answer:

x=3

Step-by-step explanation:

mark me brainliest

Answer:

the answer on edge 2021 is b) y=log3x

Step-by-step explanation:

Answer: 100 boxes

Step-by-step explanation:

Hi, since 1 ton = 2,000 lbs

We have to divide 10lbs by 2000 to convert the lbs in tons.

1t/2000lb = xt / 10lb

10 /2000=0.005

0.005 ton = 10 lbs (1 bag)

Each box has 4 bags

0.005 ton x 4 = 0.02 ton

So each box weights 0.02 ton

Since we need 2 tons.

Using proportions:

0.02t/1 box= 2 t / x boxes

x = 2 / (0.02/1)

x = 100 boxes  

Feel free to ask for more if needed or if you did not understand something.

Answer:

i need to see the problem

Step-by-step explanation:

Can you post the diagram?

Answer:

The age of the spear head is of 1938 yers.

Step-by-step explanation:

The amount of carbon 14 after years is given by the following equation:

[tex]Q(t) = Q(0)e^{-rt}[/tex]

In which Q(0) is the initial amount and r is the decay rate.

The half life of carbon 14 is 5700 years.

This means that [tex]Q(5700) = 0.5Q(0)[/tex]

So

[tex]Q(t) = Q(0)e^{-rt}[/tex]

[tex]0.5Q(0) = Q(0)e^{-5700r}[/tex]

[tex]e^{-5700r} = 0.5[/tex]

[tex]\ln{e^{-5700r}} = \ln{0.5}[/tex]

[tex]-5700r = \ln{0.5}[/tex]

[tex]5700r = -\ln{0.5}[/tex]

[tex]r = -\frac{\ln{0.5}}{5700}[/tex]

[tex]r = 0.00012160476[/tex]

So

[tex]Q(t) = Q(0)e^{-0.00012160476t}[/tex]

We have to find:

t for which Q(t) = 0.79Q(0). So

[tex]Q(t) = Q(0)e^{-0.00012160476t}[/tex]

[tex]0.79Q(0) = Q(0)e^{-0.00012160476t}[/tex]

[tex]e^{-0.00012160476t} = 0.79[/tex]

[tex]\ln{e^{-0.00012160476t}} = \ln{0.79}[/tex]

[tex]-0.00012160476t = \ln{0.79}[/tex]

[tex]0.00012160476t = -\ln{0.79}[/tex]

[tex]t = \frac{-\ln{0.79}}{0.00012160476}[/tex]

[tex]t = 1938.43[/tex]

Rounding to the nearest year.

The age of the spear head is of 1938 yers.

Answer:

The actual answer is 2357

Answer:

Y = -3 Times X - 1

Step-by-step explanation:

y = mx + c

Here, m is the slope & c is the y-intercept

y = -3x - 1

Slope = -3

y intercept = -1

Answer:

The answer is 42

Step-by-step explanation:

and what he most likely did was

He subtracted 48 from 180 instead of 90.

YOUR WELCOME

Answer:

7.5

Step-by-step explanation:

7.2 + 8.5 + 7.0 + 8.1 + 6.7 = 37.5

37.5÷5 = 7.5

Answer:

7.5

Step-by-step explanation:

The mean is 7.5

Answer:

the y intercept is 4

Step-by-step explanation:

the 4 is where the line starts so it would be (0,4)

First, notice that this equation is written in slope-intercept form which is more commonly known as y = mx + b form where the multiplier, m, or the coefficient of the ex term represents the slope of the line and the b or the constant term represents the y-intercept of the line.

I have attached slope-intercept form below.

Notice that below, the b is in place of the 4 in the equation.

So the y-intercept or the b is 4.

Answer:

86

Step-by-step explanation:

Given that there are 30 students in class 10R and the mean marks for the entire class was 70%. Therefore, total mark of class = 70 x 30 = 2100

Given that there are 20 boys in the class and the mean marks for the boys was 62 %. Therefore, total mark of boys = 62 x 20 = 1240

To calculate the mean mark for the girls we need to find the total number of girl and total mark of girls. total number of girl = 30 - 20 (boys) = 10 total mark of girls = total mark of class -  total mark of boys = 2100 - 1240 = 860 mean mark for girls = 860 / 10 = 86

Answer:

Parallelogram

Step-by-step explanation:

we will solve question using hints given in question

given

There two pairs of parallel opposite sides

1. since there are two pairs of  it means there 4 sides so the figure is quadrilateral

there are six possible types of quadrilateral possible

rectangle, square, rhombus, parallelogram,  kite or any irregular quadrilateral which has not any standard defined shape

2 . It is given that opposite sides are parallel

there are four such quadrilateral which have opposite side parallel

rectangle, square, rhombus, parallelogram

Thus these are possible figures

3. Four sides are not all the same length

Since square and rhombus have all the sides of same length thus we omit these probable figure

hence  probable figure left are

rectangle, parallelogram

4. figure has no right angles

since rectangle has right angle so it will also be omitted from the probable figure

Hence only probable figure left is parallelogram.

Parallelogram  is a quadrilateral with two two pairs of parallel opposite sides

and satisfying the above condition of

1. The four sides of not the same length

2. no right angles

Answer:

scatter plot. i believe.

Step-by-step explanation:

Final answer:

A graph that displays a collection of ordered pairs is known as a scatter plot, which shows the relationship between two variables using a Cartesian coordinate system.

Explanation:

A graph that displays a collection of ordered pairs is called a scatter plot. A scatter plot, also known as a scatter diagram, uses Cartesian coordinates to display values for two variables. It is a pictorial representation of the relationships of quantitative data, presenting individual points where the value of one variable determines the position on the horizontal axis (x-axis), and the value of the other variable determines the position on the vertical axis (y-axis). The pattern of these points on the graph helps to visualize any correlation between the variables being analyzed.

Answer:

6/9

Step-by-step explanation:

The probability of drawing a marble that is not green from a jar with 4 red, 3 green, and 2 blue marbles is 2/3 or 66.67%.

To find the probability of drawing a non-green marble from a jar containing red, green, and blue marbles, calculate the ratio of non-green marbles to the total marbles

Calculate the total number of marbles: 4 (red) + 3 (green) + 2 (blue) = 9 marbles in total.

The probability of drawing a non-green marble = [tex]\frac{(4~ red ~marbles + 2 ~blue ~marbles) }{9~ total ~marbles.}\\\frac{6}{9}[/tex]

Therefore, the probability of drawing a non-green marble is 6/9 or 2/3 (or approximately 0.67).

Answer:

180 sq ft

Step-by-step explanation:

1/2 x 18 x 20 = 180

Answer:

a: 180 square feet

Step-by-step explanation:

Answer:

3.31 Should be irrational. If it can be made into a fraction than its rational if not then it would be known as irrational.

Answer:

6/40 = cranberry juice, 30/40 = apple juice , 4/40 = orange juice

if you want to simplify these you can also write them as :

3/20 = cran. juice , 3/4 = apple juice, 1/10 = orange juice.

Answer:

3:15:2

Step-by-step explanation:

Answer:

The skaters are 2.5 feet apart

Step-by-step explanation:

Firstly, please check attachment for diagrammatic representation.

To calculate the distance apart, this is same as the length PJ

To calculate this length, we can use the cosine rule as follows;

O^2 = P^2 + J^2 -2(P)(J)Cos 15

O^2 = 7^2 + 5^2 -2(7)(5)Cos 15

O^2 = 49 + 25 - 70Cos15

O^2 = 74 - 67.61

O^2 = 6.39

O = √6.39

O = 2.53

O = 2.5 feet to the nearest tenth of a foot

The distance between the skaters is 2.5m

Data;

To solve this problem we can use cosine rule for this since we have the value of two sides and an angle.

[tex]c^2 = a^2 + b^2 -2ab cos C[/tex]

Let's substitute the values into the formula

[tex]c^2 = 5^2 + 7^2 - 2*5*7*cos15\\c^2 = 25 + 49 - 67.61\\c^2 = 6.39\\c = \sqrt{6.39} \\c = 2.5m[/tex]

The distance between the skaters is 2.5m

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The letters in the word D-I-N-O-S-A-U-R can be arranged in 40,320 ways.

To find the number of ways the letters in the word D-I-N-O-S-A-U-R can be arranged, we can use the concept of permutations.

The word D-I-N-O-S-A-U-R contains 8 different letters. To find the number of arrangements, we can use the formula for calculating permutations of n objects taken all at a time, which is n!. In this case, n is equal to 8, so the number of arrangements is 8!.

However, there are some repeated letters in the word D-I-N-O-S-A-U-R.

The letter 'A' is repeated twice. To account for the repetition, we divide the total number of arrangements by the factorial of the number of times each repeated letter occurs.

In this case, 'A' appears twice, so we divide by 2!. So the final answer is 8! / 2!.

Simplifying the expression, we have 8! / 2! = 40,320.

The Answer is B 21.5%

Step-by-step explanation:

This question is incomplete because the diagram of the sphere was not shown. Find attached to this answer the diagram for the sphere.

Answer:

a) The correct volume of the sphere = 113cm³

b) b) Hal's likely error was that

i) He used the wrong formula which is Surface area of the sphere(4πr²) in his calculation instead of the right formula which was the Volume of a Sphere(4/3πr³)

ii) In addition to using the wrong formula, Hal did not use π in his calculation.

Step-by-step explanation:

a) The Volume of a Sphere = 4/3πr³

From the attached diagram, the radius of the sphere was given as = 3cm

π = 3.14

The volume of the sphere = 4/3 × 3.14 × 3³

= 113.04 cm³

We were told to round up to the nearest hundredth. Therefore, correct the volume of the sphere = 113cm³.

b) Hal's likely error was that

i) He used the wrong formula which is Surface area of the sphere(4πr²) in his calculation instead of the right formula which was the Volume of a Sphere(4/3πr³)

ii) In addition to using the wrong formula, Hal did not use π in his calculation.

This means:

Surface Area of a Sphere = 4πr²

But Hal's used = 4r²

Where r = 3cm = 4 × (3cm)² = 36

Answer:

1,280

The dimensions are 5 by 4

Step-by-step explanation:

You multiply 20 and 16 then, divide 0.25 then you get 1,280

Answer:

Brainliest

Step-by-step explanation:

A = 4.5

Area of triangle = Base(height)1/2

(3)(3)1/2 = 4.5

Answer:

4.5

Step-by-step explanation:

base(height)(1/2) = 3 x 3 x 1/2 = 4.5

Answer:

8

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

Answer:

Camila

Step-by-step explanation:

you take 1/5 and make it 2/10. Then you see that there are 10 slices and since Beth and Camila ate in 10th's, Beth at 2 slices and Camila ate 3. So since Alice ate 2 slices its less than Camila. Therefore, Camila ate the most slices.

Answer:

it is an enlargement ( I know) and the scale factor is 2.6 (I think. I can't do it without the image)

Step-by-step explanation:

Answer:

C The dilation is a reduction.

Step-by-step explanation:

Which statement about these rectangles is true?

A rectangle pre-image has a length of 4 and width of 2. A rectangle image has a length of 4 (1.5) and width of 2 (1.5).

The correct answer is:

The volume of the pyramid is approximately 111.5 cubic inches, rounded to the nearest tenth of a cubic inch.

To find the volume of a pyramid, we can use the formula:

[tex]\[ \text{Volume} = \frac{1}{3} \times \text{Base Area} \times \text{Height} \][/tex]

Given:

- Side length of the square base = 6.6 inches

- Height of the pyramid = 7.7 inches

First, let's find the area of the square base:

[tex]\[ \text{Area of square base} = \text{Side length}^2 \]\[ = 6.6^2 \]\[ = 43.56 \text{ square inches} \][/tex]

Now, substitute the values into the formula for the volume of a pyramid:

[tex]\[ \text{Volume} = \frac{1}{3} \times 43.56 \times 7.7 \]\[ \text{Volume} = \frac{1}{3} \times 334.632 \]\[ \text{Volume} = 111.544 \text{ cubic inches} \][/tex]

Rounding to the nearest tenth, the volume of the pyramid is approximately [tex]\( \boxed{111.5} \)[/tex] cubic inches.

The volume of the square-based pyramid is calculated using the formula for the volume of a pyramid, resulting in approximately 111.8 cubic inches after rounding to the nearest tenth.

The volume of a pyramid with a square base is calculated using the formula V = (1/3) x base area x height. First, calculate the base area, which is the side length squared. In this case, the base area is:

6.6 in x 6.6 in = 43.56 in²

Then, multiply the base area by the height and divide by 3 to find the volume:

V = (1/3) x 43.56 in² x 7.7 in
= 43.56 in² x 2.566 in
= 111.804 in³, which rounds to 111.8 in³ to the nearest tenth.

Therefore, the volume of the square-based pyramid is 111.8 in³.

Answer:

10 x^2 + 8 x + 1

Step-by-step explanation:

Simplify the following:

8 x^2 + 2 x^2 + 7 x + x - 3 + 4

Grouping like terms, 8 x^2 + 2 x^2 + 7 x + x - 3 + 4 = (2 x^2 + 8 x^2) + (x + 7 x) + (4 - 3):

(2 x^2 + 8 x^2) + (x + 7 x) + (4 - 3)

2 x^2 + 8 x^2 = 10 x^2:

10 x^2 + (x + 7 x) + (4 - 3)

x + 7 x = 8 x:

10 x^2 + 8 x + (4 - 3)

4 - 3 = 1:

Answer: 10 x^2 + 8 x + 1

Answer:

[tex]10 {x}^{2} + 8x + 1[/tex]

Step-by-step explanation:

[tex]2 {x}^{2} + x + 4 -3 + 7x + 8 {x}^{2} \\ = 2 {x}^{2} + 8 {x}^{2} + x + 7x + 4 - 3 \\ = 10 {x}^{2} + 8x + 1[/tex]

Answer:

A = (x + 15)(x + 10) − 5

Step-by-step explanation:

(x+15)(x+10)-5=A would be a solution

To make this easier, let's assign x a value. Let's say 3.

(3+15)(3+10)-5=A

(18)(13)-5=A

234-5=A

A=229

Now with this, we put x in the answer choice and the answer that gives an area of 229 is correct.

A. A=(3+20)(3+10)+12=(23)(13)+12=299+12=311 Answer A is wrong.

B. A=(3+20)(3+10)-12=(23)(13)-12=299-12=287 Answer B is wrong.

C. A=(3+26)(3+15)=(29)(18)=522 Answer C is wrong.

D. A=(3+14)(3+8)=(17)(11)=187 Answer D is wrong.

It's either I'm wrong or the answer choices are wrong.

New answer choices!

A. A=(3+20)(3+11)

=(23)(14)=322 Answer A is wrong.

B. A=(3+15)(3+10)+5

=(18)(13)+5=234+5=239  Answer B is wrong.

C. A=(3+15)(3+10)−5

=(18)(13)-5=234-5=229 Answer C is correct.

D. A=(3+9)(3+10)=(12)(13)=156 Answer D is wrong.

A = (x + 15)(x + 10) − 5

(x+15)(x+10)-5=A would be a solution

To make this easier, let's assign x a value. Let's say 3.

(3+15)(3+10)-5=A

(18)(13)-5=A

234-5=A

A=229

Now with this, we put x in the answer choice and the answer that gives an area of 229 is correct.

A. A=(3+20)(3+11)

=(23)(14)=322 Answer A is wrong.

B. A=(3+15)(3+10)+5

=(18)(13)+5=234+5=239  Answer B is wrong.

C. A=(3+15)(3+10)−5

=(18)(13)-5=234-5=229 Answer C is correct.

D. A=(3+9)(3+10)=(12)(13)=156 Answer D is wrong.

The question probable may be:

Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted:

Write an equation to determine the area, A, of the patio that will be painted.

A. A=(3+20)(3+11)

B. A=(3+15)(3+10)+5

C. A=(3+15)(3+10)−5

D. A=(3+9)(3+10)=(12)(13)=156

Answer:

$30 in total.

Step-by-step explanation:

Since he owes 3 people 10 dollars each, you simply need to multiply:

10×3= $30 dollars in total.

Answer:

56 divided by 8 would equal or just 56/8=

Step-by-step explanation:

If you want to find how many packs there are, it would be 56 divided by 8 would equal p.