3 years ago

Can someone help mee

Mathematics

1 answer:

pishuonlain [190]3 years ago

6 0

Answer:

Check pdf

Step-by-step explanation:

Download pdf

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How many ways to make 50 cents in change?

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There are 49 ways to make 50 cent in change

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4 years ago

Mary has a monthly salary of $1200. She spends $280 per month on food. What percent of her monthly salary does she spend on food

GenaCL600 [577]

Answer:

23%.

Step-by-step explanation:

280/1200 = 0.23

0.23 * 100 = 23

So the answer is 23%.

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3 years ago

Alex bought six books priced at $8 each he got a discount of 20% off the total cost how much did alex pay for the books write yo

chubhunter [2.5K]

He has to pay $6.40 for all the books.

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4 years ago

PLEASE HELP!!!<br> Which expressions simplify to a rational answer? Select each correct answer.

Bond [772]

ANSWER

The first three expressions will simplify to a rational answer.

EXPLANATION

Let us simplify the expressions then we can see which of them are rational.

$7\sqrt{3} \times \sqrt{3}$

We multiply out the roots to get

$7\sqrt{3} \times \sqrt{3}=7 \times (\sqrt{3})^2$

This simplifies to

$7\sqrt{3} \times \sqrt{3}=7 \times 3$

$7\sqrt{3} \times \sqrt{3}=21$

This is a rational number hence the answer is rational.

$\sqrt{5} \times \sqrt{5}=(\sqrt{5})^2$

$\sqrt{5} \times \sqrt{5}=5$

This is also a rational solution.

$2\sqrt{9} \times \sqrt{4}=2\times3\times2$

$2\sqrt{9} \times \sqrt{4}=12$

This one too is a rational solution.

$\sqrt{3} \times \sqrt{16}=\sqrt{3}\times4$

$\sqrt{3} \times \sqrt{16}=4\sqrt{3}$

This is an irrational answer because √3 is an irrational number and multiplying a rational number, 4 by an irrational number results in an irrational number.

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3 years ago

Simplify this expression<br> 10(-12)

lisabon 2012 [21]

you would multiply 10 x -12 by distributing the 10 into the parenthesis.

The answer would be negative because a postive times a negative is a negative.

The answer is -120

8 0

4 years ago

Read 2 more answers