After 10 weeks, the boys will have the same amount in savings.
Step-by-step explanation:
Given,
Amount Roberto starts with = $30
Amount added each week = $5
Let,
x be the number of weeks.
R(x) = 30+5x
Amount saved by Jack each week = $8
J(x) = 8x
When the amount will be same, the functions will be equal, therefore,
R(x) =J(x)
Dividing both sides by 3
After 10 weeks, the boys will have the same amount in savings.
Keywords: functions, division
Learn more about functions at:
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Answer:
8
Step-by-step explanation:
67-11=56
56 divided by 7 =8
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Plug 2 for y in the equation given.
x + 3(2) = 7
x + 6 = 7
Subtract six from both sides to isolate x.
x = 1
Answer:
A town with 600 people need 10 firefighters
A town with 1500 people will need 1500 x 10/600 = 1500/60
= 25 firefighters
Hope this helps!