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2 years ago

Helpppp plsssssssss !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Maslowich2 years ago

6 0

Answer:

He is wrong.

Step-by-step explanation:

This indicates a percent increase in the amount of time he spends doing homework:

% increase = $\frac{amount.of.increase.from.initial.amount.to.current}{initial.amount} * 100$

% increase = $\frac{5}{20} * 100$

% increase = 25%

Meaning that he spent 100%+25% = 125% of the time he spent on homework last week.

Hence, he is wrong.

Nikitich [7]2 years ago

3 0

Answer:

Yes, he is correct

Step-by-step explanation:

25% of 20 is 5 (0.25*20)

100% of 20 is 20

if you take 125% of 20, you'll end up with 25

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Jennifer had a 7/8- foot board. She cut off a 1/4 foot piece that was for a project. In feet, how much of the board was left

Tems11 [23]

Answer: There was 5/8 of a foot of board left.

Step-by-step explanation:

Step 1. We need to subtract 1/4 from 7/8. To do this make it where both fractions have the same denominator.

Step 2. The easiest way to do this is to multiply 1/4 by 2.

1/4*2/2=2/8.

Step 3. Now all you got to do is subtract 2/8 from 7/8.

7/8-2/8= 5/8.

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3 years ago

A manufacturing process is designed to produce bolts with a 0.25-in. diameter. Once each day, a random sample of 36 bolts is sel

Troyanec [42]

Answer:

0.6170

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No of bolts tested = 36

If this mean falls outside the interval (0.230,0.270) the production would be shut down.

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3 years ago

A rectangular prism has a length of 12in, a height of 5in, and a width of 8in. What is its volume, in cubic in?

cupoosta [38]

Answer: The volume is 480 in^3

Step-by-step explanation:

v= lwh

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v= 480 in^3

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3 years ago

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I, $\frac{1}{2}$
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3 years ago

Bond [772]

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3 years ago