2 years ago

Pls help with the very last question

Mathematics

1 answer:

harina [27]2 years ago

6 0

Answer:

A for the first one, B for the second one, and i think B for the third.

Step-by-step explanation:

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At a sale, books are sold at $90.75 each, which is 75 percent of the original price. What is the original price

lions [1.4K]

$\frac{75}{100} = \frac{90.75}{x} \\ x = \frac{90.75 \times 100}{75} = \frac{9075}{75} = 121$
the answer is 121

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3 years ago

What is the sum of the interior angles of the polygon shown below

DanielleElmas [232]

Answer:

720 degrees.

Step-by-step explanation:

The sum of the interior angles of a convex polygon with n sides is

180(n - 2) degrees.

In this case, n = 6 sides, so the angle sum is

180(6 - 2) = 180(4) = 720 degrees.

The reason this works is that if you draw a diagonal from one vertex to the others (see attached image), you get 2 fewer triangles than the number of sides. Each triangle contains a total of 180 degrees, so the total of all the interior angles is 180(n - 2).

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2 years ago

Mrs. Synder must choose two of her homeroom students to be class representatives. The class consists of 13 girls and 9 boys. App

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9/22 x 13/21 = 0.25 = 25% B

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3 years ago

Read 2 more answers

What is 2x+4 if x is equal to 45

swat32

Hey there!

For this problem you need to replace x with 45

So the new problem is 2(45)+4

2 x 45 = 90
then 90+4 = 94

Your answer is 94

Hope I was able to help!

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3 years ago

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