The main mathematical step used to solve percent proportion is...

Mathematics

2 answers:

Ilia_Sergeevich [38]3 years ago

8 0

Answer:

Mutiply The numbers by 100 to turn into a percent.

Step-by-step explanation:

Scrat [10]3 years ago

6 0

To solve percent problems, you can use the equation, Percent · Base = Amount, and solve for the unknown numbers. Or, you can set up the proportion, Percent =, where the percent is a ratio of a number to 100. You can then use cross multiplication to solve the proportion.

Hope this Helps you... =)=)

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The cost in dollars (in dollars) of making x flip flops is represented by 40+4x. The cost (in dollars) of making x sandals is re

Anastasy [175]

Answer:

a. C = 12x + 110; b. $290

Step-by-step explanation:

a. The polynomial

Let L = cost of flip-flops

and S = cost of sandals

Then

C = L + S

= 40 + 4x + 70 + 8x

= 12x + 110

b. The cost

C = 12 × 15 + 110

= 180 + 110

= $290

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A school will have a fall festival if at least 40% of the 500 students plan to attend. How many students must agree to attend in

artcher [175]

Answer:

200 students must agree to attend in order for the school to have the festival.

Step-by-step explanation:

200 is 40% of 500. We can also use fractions to figure this out.

$\frac{40}{100} =\frac{x}{500}$

For 100 to become 500 it must be multiplied by 5. And whatever we do to the denominator we have to do to the numerator. So we multiply 40 × 5 = <em>x</em>

<em>x</em> = 200

$\frac{40*5}{100*5} = \frac{x}{500}$