Respuesta :
Answer:
6 days
Step-by-step explanation:
shirley earned 50 dollars before farah started saving
50-15
60-30
70-45
80-60
90-85
100-100
6 days
In 10 days Farah and Shirley will have the same amount of money
What is a linear equation in one variable?
A linear equation is an alzebraic expression which has highest degree of one and contains only one variable.
In the given question farah saved 15$/day and Shirley saved 10$/day
Shirley started 5 days earlier so in 5 days she will save 10 x 5 = 50$
let assume days to be x.
So,
10x + 50 = 15x
5x = 50
x = 10 .
Learn more about linear equation in one variable here:
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