Alicia drives to work at a speed of 45 miles per hour. It takes her about 2 hours and 15 minutes to get to work. If gas costs $2
.75 per gallon and Alicia’s car gets 25 miles per gallon, about how much does Alicia spend on gas to get to work?
1 answer:
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Answer:
Step-by-step explanation:
we know that
In a join variation, If j varies jointly with respect to g and v, the equation will be of the form
where k is a constant
step 1
Find the value of k
we have
j=2,g=4,v=3
substitute and solve for k
The equation is equal to
step 2
Find the value of j when g=8,v=9
substitute the values in the equation and solve for j