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Leya [2.2K]
2 years ago
12

Robert earned $10, which was 4 less than twice what Eric earned , How much money did Eric earn?

Mathematics
1 answer:
Kisachek [45]2 years ago
6 0

Answer:

Eric's earning is $7

Step-by-step explanation:

Given

Represent Robert's earnings with R and Eric's with E.

R = 10\\R = 2E - 4

Required

What is the value of E?

Substitute 10 for R in the second equation.

10 = 2E - 4

Solve for 2E

2E = 10 + 4

2E = 14

Solve for E

E = 14/2

E = 7

<em>Eric's earning is $7</em>

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Y

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6 0
2 years ago
6 ice cream cones cost $10. How much does 9 cost
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3 0
2 years ago
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There are 9 students in a service club. The club is making gift baskets for children in a hospital. Each club member donated 4 c
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Answer:

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4 0
2 years ago
"On a map, 0.25 inches represents 1 mile. What is the area of a rectangle on the map that is 3.75 inches long and 2.25 inches wi
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0.25 inches represents 1 mile

----------------------------------------------
Find 1 inch:
----------------------------------------------
1 inch represents 1 ÷ 0.25 miles
1 inch represents 4 miles

----------------------------------------------
Find 3.75 inches:
----------------------------------------------
1 inch represents 4 miles
3.75 inches represent 4 x 3.75 miles
3.75 inches represent 15 miles

----------------------------------------------
Find 2.25 inches:
----------------------------------------------
1 inch represents 4 miles
2.25 inches represent 4 x 2.25 miles
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Find Area:
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Area = Length x Width
Area = 15 x 9 
Area = 135 miles²

----------------------------------------------
Answer: 135 miles²
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