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2 years ago

12

Jake and Hannah wash windows Jake charges $50 plus $2 per window hannah charges $20 plus $5 per window for how many windows wash

ed do they charge the same amount

1 answer:

AnnZ [28]2 years ago

8 0

10.
50+(2x)=20+(5x)
-20 -20
-2x -2x
30=3x
divide both sides by 3
10=x

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<em>The fraction of the flour Mrs. Mannng will use for her chocolate chip cookies is 4/9</em>

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<u>Fraction of Portion</u>

Suppose we have a number n and another number m such as m>n. The portion or fraction of size n of m is given by the quotient n/m.

For example, 3 pieces of cake out of a total of 6 make them a fraction of 3/6 = 1/2 of the whole cake, i.e. half of the total available.

Mrs. Manning needs 1/3 cup of flour to make cookies for the bake sale. She actually has 3/4 cups of flour. Calculate the fraction of needed against the available flour:

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The division can be easier performed by multiplying by the reciprocal of the denominator:

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$\displaystyle =\frac{4}{9}$

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