A company charges $7 for a T-shirt and ships any order for $15. A school principal ordered a number of T-shirts for the school store. The total cost of the order was $1,520. Which equation can be used to find the number of shirts ordered?
A
1,520=7x+15
B
1,520=x+15(7)
C
1,520=7x+15x
D
1,520=15x+7
Answers
Answer:
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The required equation is 1,520 = 7x + 15
Given :
- A company charges $ 7 for a T-shirt and ships any order for $ 15.
- A school principal ordered a number of T-shirts for the school store.
- The total cost of the order was $1,520.
To find :
The equation can be used to find the number of shirts ordered
A. 1,520 = 7x + 15
B. 1,520 = x + 15(7)
C. 1,520 = 7x + 15x
D. 1,520 = 15x + 7
Solution :
Step 1 of 2 :
Write down given data
Here it is given that the company charges $7 for a T-shirt and ships any order for $15.
The total cost of the order was $1,520.
Step 2 of 2 :
Form the equation to find the number of shirts ordered
Let the school principal ordered x number of T-shirts for the school store
Since company charges $7 for a T-shirt
∴ Total charges for x T-shirts = $ 7x
Now the company ships any order for $15.
∴ Total cost of the order = $(7x + 15)
Now it is given that the total cost of the order was $1,520
So by the given condition
7x + 15 = 1520
⇒ 1520 = 7x + 15
Which is the required equation to find the number of shirts ordered
Hence the correct option is A. 1,520 = 7x + 15
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