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mr_godi [17]
3 years ago
13

Help Please!! What is the value of a? Enter your answer in the box. a =

Mathematics
1 answer:
Talja [164]3 years ago
6 0

Answer:

a=15

Step-by-step explanation:

By pythagoras' theorem

25²=20²+a²

625=400+a² group like terms

a²=625-400

a²=225

\sqrt{a {}^{2} }  =  \sqrt{225}

therefore a=15

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One shelf will hold 45 pounds of boxes. If you have to store 270 pounds of boxes, how many shelves will you need?
arlik [135]

Hi!

We will solve this using ratios, like this:

1 shelf holds 45 pounds

x shelves hold 270 pounds

______________________

x = (270*1)/45

x = 270/45

x = 6

6 shelves will be needed to hold 270 pounds of boxes.

Hope this helps!

6 0
3 years ago
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Estimate 19.164 - 9.53 by first rounding each number to the nearest tenth.
Lina20 [59]
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9.53 rounded the the nearest tenth is 9.5 because 0.53 is closer to 0.5 than it is to 0.6.

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3 years ago
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san4es73 [151]

ANSWER:

\frac{1}{5}  \\

EXPLANATION:

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4 0
3 years ago
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3 years ago
As a salesperson, you are paid $50 per week plus $2 per sale. This week you want your pay to be at least $100. What is the minim
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5 0
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