A map has a scale of 5 inches = 4 miles. How many miles are 45 inches?
1 answer:
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Answer:
Part 1)
Part 2)
Step-by-step explanation:
Let
y ----> the total amount of savings
x ----> the number of months
we know that
The linear equation in slope intercept form is equal to
where
m is the slope or unit rate
b is the y-intercept or initial value
In this problem we have
<em>Herman</em>
The slope is equal to
The y-intercept is
substitute
----> equation A
<em>Jackie</em>
The slope is equal to
The y-intercept is
substitute
----> equation B
Part 1) In how many months will they have the same amount of savings?
equate equation A and equation B
solve for x
Part 2) How much will each of them have saved?
substitute the value of x=10 months in any of the equations
equation A
equation B