you are having a garage sale. At Lowe's, a cash box cost $10 and for sale signs cost $7 each. You spent a total of $38 before ta
xes. How many for sale signs did you buy in addition to the cash box?
2 answers:
Answer:
4 sales signs
Step-by-step explanation:
7x + 10 = 38
<em>Subtract 10</em>
7x = 28
<em>Divide 4</em>
x = 4
Answer:
4 signs
Step-by-step explanation:
The total amount you spent is ...
cash box cost + sign cost = total amount
You are told the cash box costs $10, the signs are $7 each, and the total is $38. If n is the number of signs, then the total amount is ...
$10 + $7 × n = $38
Subtracting the cost of the cash box gives the amount you spent on signs:
7n = 28
Dividing by 7 gives the number of signs:
28/7 = n = 4
You bought 4 signs.
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