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ki77a [65]
3 years ago
13

Please help me with this question

Mathematics
1 answer:
salantis [7]3 years ago
4 0
Checkthe image, i coundlnt tell which one you were looking for so heres a table

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Ms. Hartline grades one math test every 1⁄4 hour. How many math tests does she grade in 2 hours? HELP QUICK!!
vazorg [7]

Answer:

8 maths tests

Step-by-step explanation:

Given data

We are told that in 1/4 hour that is 0.25hour (15 mins) She grades 1 math test

our aim is to find how many maths test she grade in 3 hours (120min)

Hence

in  15 mins she does 1 grading

in 120 mins she does x

cross multiply

15x= 120

divide both sides by 15

x= 120/15

x= 8 maths test

Hence in 2 hours, she can grade 8 maths tests

4 0
2 years ago
Expanded form for 13 cubed
saw5 [17]
The answer to this question is 2197! Hope this helped :3
5 0
3 years ago
Simplify the product using FOIL (2x-7)(5x+5)
babunello [35]

Answer:

10x^2-25x-35

Step-by-step explanation:

FOIL means first, outer, inner, and last.

The first term of each pair is 2x and 5x.

The outer term of each pair is 2x and 5.

The inner term of each pairs are -7 and 5x.

The last term of each is -7 and 5.

Now we just have to multiply the terms I pairs above:

First:   (2x)(5x)=10x^2

Outer: (2x)(5)=10x

Inner: (-7)(5x)=-35x

Last:   (-7)(5)=-35

------------------------------Add the terms:

10x^2-25x-35

7 0
3 years ago
Can someone help me please
Sladkaya [172]
Here are you

Have a good day

3 0
3 years ago
40 points!!!
Karolina [17]
I think it would be the first
3 0
3 years ago
Read 2 more answers
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