At work, Amy receives $22.25 per hours for up to 40 hours per week. Any time beyond that is paid at a rate of 37.80 per hour . I
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Percent of earnings that go to school = 80%
Percent of earnings that was spent on the fundraiser cost = 20%
Last year earnings were= $4000
80% of 4000 went to school which is =
20% of 4000 = went to costs.
a:
As given, this year, they want $4,000 to go directly to the school.
So let the earnings this year be represented by = x
As, 80% of the earnings go to school, so 80% of x = 4000
Hence, this year their earnings should be $5000 so that 80% of it which is $4000 will go to school. And 20% which is $1000 will go to costs.
Or we can say last year they earned $4000, so this year they need to earn $1000 more.
b:
The total amount they need to earn this year is $5000.
Substituting the value of x in
( equation 2)
Now we get y = 6
Substituting the value of y in
( equation 1 )
Now we get x = 3