An appliance store offered gift cards to people making purchases. If a customer purchased a microwave, they received a $25 gift card. If a customer purchased a washing machine, they would get a $50 gift card. During this promotion, the store gave away 54 gift cards. The total value of the cards was $2,250. How many $25 dollar gift cards were given out during the promotion?

A. 12
B. 18
C. 36
D. 48

Let x be number of giftcard of 25$

y be number of giftcard of 50$

x+y=54

x=54-y. equation 1

25*x+50*y=2250

25(54-y)+50y=2250

1350-25y+50y=2250

25y=2250-1350

25y=900

y=36

put value of y in equation 1

x=54-36

x=18

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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