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3 years ago

there were 40 questions on Roberts test. How many problems did Robert get right if he received an 87.5% oh his test?

Mathematics

1 answer:

Natali [406]3 years ago

4 0

Answer:

Robert got 35 problems right if he received an 87.5% oh his test.

Step-by-step explanation:

Total questions = 40

As Robert got right 87.5% on his test.

so the expression becomes

87.5% × 40

= 87.5/100 × 40

= 0.875 × 40

= 35

Therefore, Robert got 35 problems right if he received an 87.5% oh his test.

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Answer:

a square

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4 years ago

PLEASE HELP!!! Find MG. ∆EGF~∆EML.

stiv31 [10]

Answer:

$MG=56\ units$

Step-by-step explanation:

step 1

Find the value of x

we know that

If two triangles are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem we have that

∆EGF~∆EML

$\frac{EG}{EM}=\frac{EF}{EL}$

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$\frac{5x+2}{16}=\frac{126}{28}$

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$MG=EG-EM$

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The top of a ladder is placed against the side of a house. The ladder is 8 feet long and the wall is 10 feet high. How far from

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Question 3

Ymorist [56]

To write an equation to represent a given information, the equations are to

expresses the information conveyed in the situation.

The two equations that represent the given information are;

x + y = 25

5.6·x + 4·y = 133.6

Reasons:

The given information are;

Mass of the large boxes = 5.6 kg

Mass of the small boxes = 4 kg

Number of boxes delivered = 25 boxes

Total mass of the boxes delivered = 133.6 kg

Number of the 5.6 kg box delivered = x

Number of the 4 kg boxes delivered = y

Required:

To form two equations in terms of x and y to represent the situation.

Solution:

The two equations are;

The number of boxes delivered = x + y = 25

Total weight of the boxes delivered = 5.6·x + 4·y = 133.6

Solving the above equations with a graphing calculator gives;

x = 21, y = 4

Learn more about writing equations here:

brainly.com/question/15790322

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