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2 years ago

Mary delivers 32 newspapers to her customers in 25 minutes. These deliveries represent 64% of her customers.

Mathematics

2 answers:

goblinko [34]2 years ago

7 0

Answer:

c. 50

Step-by-step explanation:

I did the test and got a 100% on it! Hopes this Helps!!!

sveticcg [70]2 years ago

6 0

<span>Ok. You would set up the problem like this: 32/x=64/100 and then cross multiply; 3200=64x; divide both sides by 64; x=50. Mary has 50 customers.</span>

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2 years ago

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Total amount if $500 is invested at 4% compounded annually for 10 years

ycow [4]

P(10) = P(2.7183) ^ 0.04 times 10
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3 years ago

32 is 90% of what number?

spayn [35]

Answer:

$\large\boxed{32\ is\ 90\%\ of\ 35\dfrac{5}{9}}$

Step-by-step explanation:

<h3>METHOD 1:</h3>

$\begin{array}{ccc}32&-&90\%\\\\x&-&100\%\end{array}\qquad\text{cross multiply}\\\\\\90x=3200\qquad\text{divide both sides by 90}\\\\x=\dfrac{3200}{90}\\\\x=\dfrac{320}{9}\\\\x=35\dfrac{5}{9}$

<h3>METHOD 2:</h3>

$\begin{array}{cccc}32&-&90\%&\text{divide both sides by 9}\\\\\dfrac{32}{9}&-&10\%\end{array}\\\\\\90\%+10\%=100\%\to32+\dfrac{32}{9}=32+3\dfrac{5}{9}=35\dfrac{5}{9}$

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2 years ago

Hey guys I need help! I'm having so much trouble with understanding this...

Aleonysh [2.5K]

What part do you have trouble with

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2 years ago

The math class has a set of 40 calculators, and 85% of the calculators have working batteries. How many calculators need new bat

777dan777 [17]

Answer:

Step-by-step explanation:

you will multiply 40 times .85 since the percent you move the period two times to the left you will get an answer of 34.

you will then subtract 34 out of the 40 and you will get the answer 6.

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2 years ago