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3 years ago

15

Karla has spent $39 on food. She bought milk, cheese, and meat. The milk cost half as much as the cheese and the meat cost 4 tim

es as much as the cheese

1 answer:

finlep [7]3 years ago

6 0

m = milk

c = cheese

t = meat

m = 0.5c

t =4c

0.5c+ c + 4c = 39

5.5c = 39

c = 39/5.5 = 7.09

cheese = 7.09

milk = 7.09/2 = 3.55

meat = 7.09*4 = 28.36

28.36 +3.55 + 7.09 = 39

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General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right<u> </u>

<u>Algebra I</u>

Simple Interest Rate Formula: $\displaystyle A = P(1 + r)^t$

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<u>Step 1: Define</u>

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<u>Step 2: Solve for </u><em><u>A</u></em>

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