4 years ago

How do u do percentages

Mathematics

2 answers:

melomori [17]4 years ago

5 0

By changing the number into a decimal, and then moving the decimal twice to the right.

Nutka1998 [239]4 years ago

3 0

Hi , if you want to convert a fraction to a percent , you just have to divide the numerator and the denominator , then you have to move the decimal to spaces to the right , if you want to convert a decimal , you do the same process.

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Marci has a total 50 stamps, consisting of 25 cent stamps and halves the number of 15 cent stamps, they will be worth of $16.50.

lukranit [14]

Answer:

Originally there were 30, 25 cents stamps and 20, 15 cent stamps.

Step-by-step explanation:

We are given the following in the question;

Let x be the number of 25 cents stamps and y be the number of 15 cents stamps.

Marci has a total 50 stamps.

Thus, we can write

$x+y=50$

Also,

$x = \dfrac{y}{2}$

Total cost = $16.50

Thus, we can write the equation:

$0.25x + 0.15y = 16.50$

Solving the two equations:

$0.25\dfrac{y}{2} + 0.15y = 16.50\\\\(0.125+0.15)y = 16.50\\y = 60\\x = 30$

Originally,

$x+y = 50\\30 + y = 50\\y = 20$

Thus, originally there were 30, 25 cents stamps and 20, 15 cent stamps.

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3 years ago

The length of a rectangle is 16 inches, and it's area is (32x + 48) square inches. Factor the expression for the area. Write an

ss7ja [257]

16(32x + 48) 32x * 16+=w

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3 years ago

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kondor19780726 [428]

Answer:

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2 years ago

Waht is 30.75 divied by -3?

lora16 [44]

Answer:

-10.25

Step-by-step explanation:

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3 years ago

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