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3 years ago

In 1/8 of an hour, Ms. Wolf can grade 1/3 of a stack of papers. How many hours will it take her to grade 2 stacks?

Mathematics

2 answers:

Alex Ar [27]3 years ago

4 0

45 minutes to grade the stack of papers

lisabon 2012 [21]3 years ago

3 0

It would take her 45 mins to grade 2 stacks or 3/4 of an hour.

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How do you solve the inequality 12 < x + 5 so that the variable "x" is on the left side?

Eduardwww [97]

The like terms are 12 and 5, so you have to subtract 5 from both sides.
12 < x + 5
-5. -5
7 < x
We can just switch it around so x is in the left side.
x > 7

7 0

3 years ago

Read 2 more answers

Find the area of this circle. Use 3 for a.A = 7r2=11 in[?] in?

liberstina [14]

SOLUTION

We want to find the area of the circle in the picture given.

We have been given the formula as

$\begin{gathered} A=\pi r^2 \\ We\text{ are told to take }\pi\text{ as 3} \\ \end{gathered}$

From the circle, the radius r = 11 in.

The area of the circle becomes

$\begin{gathered} A=\pi r^2 \\ A=\pi\times r^2 \\ A=3\times11^2 \\ A=3\times11\times11 \\ A=363in^2 \end{gathered}$

Hence the answer is 363 square-inches

7 0

10 months ago

A midwestern music competition awarded 38 ribbons. The number of blue ribbons awarded was 1 less than the number of white ribbon

Artist 52 [7]

Starting from what I know (the difference between ribbons), I decided to go from the bottom and work my way up. I then noticed a pattern (each sum was three more of the previous one), and decided to keep my pattern of the three numbers but not have to do any major mental work and instead add three to the previous sum until I got to 38.

4 0

3 years ago

Looking at the Vertex Form of the quadratic function f(x) = a (x - h)2 + k, how does the ( h ) affect the parabola?

Kaylis [27]

Answer:

H affects horizontal shift (shift to the right or left) means moves graph right or left

Step-by-step explanation:

4 0

2 years ago

Find the value of x.

Allisa [31]

A straight line is 180°, so you can do:

109 + ? = 180 (? is the top angle of the triangle)

? = 71°

Because the triangle is an isosceles triangle, the other angle is 71° too.

71 + 71 + ? = 180

? = 38

You subtract 38 with 90 to find the other angle.

90 - 38 = 52°

To find ∠2 you subtract 52 with 180.

180 - 52 = 128

∠2 = 128

128 = 11x + 18

110 = 11x

10 = x

5 0

3 years ago