Answer: Option D
D. 880 = 45d + 70; 18 days
Step-by-step explanation:
We know that the cost of preschool is $ 45 per day plus a monthly fee of $ 70.
We also know that a total of $ 880 was paid last month
To write an equation that represents this situation, let us call d the number of days that Barry attends school
So the cost was:
Now we solve the equation for the variable d
The answer is the option D
Answer:
20+2y
Step-by-step explanation:
20 pounds more would be an addition of 20 and twice would have to be represented by 2y because it is double John's weight y.
A contractor purchased 7 dozen pairs of work gloves for 103.32 dollars.
He incorrectly calculated the unit price at 14.76 per pair for his expense report.
Let’s correct his work.
Solutions.
=> 7 pairs for gloves for 103.32 dollars.
Let’s find the cost of each pair of gloves.
=> 103.32 / 7 = 14.76 dollars.
according to our solution, he has a correct answer. The only problem in his work is the Unit rate representation.
=> 14.76 dollars/pair
