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3 years ago

Four pencils cost 5$ , how much will 12 pencils cost, I will give brainliest.

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

6 0

Answer:

This is a ratio problem.

To start, we can express "4 pencils cost $5" as a ratio:

=> 4 pencils : $5

Since we want to find out how many dollars 12 pencils cost, we see that we are multiplying the "pencils" section by 3, so we have to do the same to the dollar side.

=> 4 pencils * 3 : $5 * 3

=> 12 pencils : $15

Our answer is $15.

Step-by-step explanation:

nadya68 [22]3 years ago

3 0

Answer:

the answer is $60

Step-by-step explanation:

5x12=60

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The diameter of a pizza is 14 inches. The pizza has 8 slices of equal size. Which of the following is the closest to the area of

qwelly [4]

Answer:

Step-by-step explanation:

First let us find the area of the whole pizza. Area of a circle is:

$A=\pi r^2$

Then, we have diameter as:

$diameter\div2=radius$

So, then using these formulas we would have,

$16\div2=8\\A=8\pi \text{ or }25.12$

Now, one slice is $\frac{1}{8}$ of the entire pizza. So, we would have:

$8\pi\div8=1\pi\\\text{ or }\\25.12\div8=3.14$

<h2><u><em>HOPE THIS HELPS!!!!!!!!</em></u></h2>

8 0

2 years ago

Read 2 more answers

Write the slope-intercept form of the equation for the line that passes through the point (-1,3) and has a slope of 5/3

cricket20 [7]

Answer:

$y=\frac{5}{3}x+4\frac{2}{3}$

Step-by-step explanation:

slope-intercept form: y = mx + b

Given:

Slope(m) = $\frac{5}{3}$

Point = (-1, 3)

To write the equation in slope-intercept form we need to know the slope(m) and the y-intercept(b). Since we already know the value of m, we can use it and the given point to find b:

$3=\frac{5}{3}(-1)+b$