5. sue has $33 left for a cab fare home. the cab fare is $3 per mile. what is the maximum number of miles…
5. sue has $33 left for a cab fare home. the cab fare is $3 per mile. what is the maximum number of miles she will be able to travel in the cab?\n6. a pilot must log at least 1100 training hours to fly an aircraft. jim logged 300 hours. how many more hours must he log to qualify?\n7. in 5 years, nicole will be old enough to vote in an election. the minimum age for voting is at least 18 years. what can you say about how old she is now?\n8. brad has a $27 online gift voucher. he plans to buy as many books as he can. the cost of each book is $3. how many books can he afford without spending more than his gift voucher amount?
Answer
5.
Explanation:
Step1: Divide total money by cost per mile
Let $m$ be the number of miles. We use the formula $m=\frac{\text{Total money}}{\text{Cost per mile}}$. So $m = \frac{33}{3}$.
Step2: Calculate the result
$m=\frac{33}{3}=11$.
Answer:
11
6.
Explanation:
Step1: Subtract logged hours from required hours
Let $h$ be the remaining hours. The required hours is 1100 and logged hours is 300. So $h=1100 - 300$.
Step2: Calculate the result
$h = 800$.
Answer:
800
7.
Explanation:
Step1: Let Nicole's current age be $a$.
We know that in 5 years, her age will be $a + 5$, and $a+5\geq18$.
Step2: Solve for $a$.
Subtract 5 from both sides of the inequality: $a\geq18 - 5$, so $a\geq13$.
Answer:
Nicole is at least 13 years old now.
8.
Explanation:
Step1: Divide gift - voucher amount by cost per book
Let $n$ be the number of books. We use the formula $n=\frac{\text{Gift - voucher amount}}{\text{Cost per book}}$. So $n=\frac{27}{3}$.
Step2: Calculate the result
$n = 9$.
Answer:
9