Answer: 5 hours
Step-by-step explanation:
Carl paid $58 dollars in total and this included the fixed dollar fee and the variable amount of $9.
To find the number of hours, first deduct the fixed component:
= 58 - 13
= $45
$45 was spent as a result of hourly fee. The number of hours is therefore:
= Total hourly cost/ Cost per hour
= 45 / 9
= 5 hours
Answer:
Jeffrey will be able to sing 18 pieces over 9 weeks
Step-by-step explanation:
5 9
10 x
5x = 90
x = 18
Answer: After 12 weeks they will both be at the dentists on the same Tuesday
Step-by-step explanation:
Since we have given that
He goes for a checkup every fourth Tuesday and his friend goes for a check up every third Tuesday.
We need to find the number of weeks they both will be at the dentist on the same Tuesday.
For this we will find "L.C.M. of 4 and 3 " =12
So, After 12 weeks they will both be at the dentists on the same Tuesday.
Answer:
$142.26 - x ≥ $30
x ≤ $112.26
Step-by-step explanation:
Let the amount you can write on your next check without being charged a fee be x.
Given that you are to have at least $30 in your account or else you are charged a fee then
$142.26 - x ≥ $30
To solve, collect like terms
-x ≥ $30 - $142.26
-x ≥ -$112.26
x ≤ $112.26
Note that on dividing both sides by -1, the sign changes from greater than to less than.
Answer: 34 miles
Step-by-step explanation: