แผ่นงานWriting Systems of Equations
คำถามทั้งหมด: 10
Caitlin won a bag full of money! She has 49 bills in all. She counts $1,430. There are twenty-dollar bills and fifty-dollar bills. How many of each bill does Caitlin have? Which system best represents the situation?
x + y = 1430
20x + 50y = 49
x + y = 49
10x + 5y = 1430
x + y = 49
20x + 50y = 1430
x + y = 49
x + y = 1430
Nancy went to the grocery story. On Monday she purchased 4 apples and 6 bananas for a total of $13. On Wednesday she purchased 3 apples and 7 bananas for a total of $13.50. Which system of equations represents the situation?
4x + 6y = 3
13.5x - 13y = 6
x + y = 4
x - y = 6
4x + 6y = 13
3x + 7y = 13.5
4x - 6y = 13
3x - 7y = 13.5
s + a = 530
3s + 4a = 1740
s + a = 530
4s + 3a = 1740
s + a = 1740
3s + 4a = 530
s + a = 1740
4s + 3a = 530
The cost of 5 squash and 2 zucchini is $1.32. Three squash and 1 zucchini cost $0.75. Write a system of equations that represents this situation. Let q represent the number of squash purchased and let z represent the number of zucchini purchased.
1z = 0.75
3q + 1z = 0.75
q + z = 0.75
3q + 1z = 1.32
x+y=120
4x+3y=120
3x+3y=120
6xy=120
Alexandra finds that she can give 3 haircuts and 2 hair dyes in 315 minutes. Giving 2 haircuts and 4 hair dyes takes 450 minutes. Let h represent the number of haircuts given and d represent the number of hair dyes done. Which system of equations represents the situation?
3h + 2d = 315
2h + 4d = 450
3h + 2d = 450
2h + 4d = 315
2h + 4d = 315
3h + 2d = 450
3h + 2d = 315
2h + 2d = 135
A bag contains 18 coins consisting of quarters and dimes. The total value of the coins is $2.85.
Which systems of equations can be used to determine the number of quarters, q, and the number of dimes, d, in the bag?
0.10q+0.25d=2.85
q+d=18
0.10q+0.25d=18
q+d=2.85
0.25q+0.10d=2.85
q+d=18
0.25q+0.10d=18
q+d=2.85
There are 15 plates in a kitchen cabinet. The diameter of each plate is either 7 inches or 12 inches. The diameter of all 15 plates combined is 140 inches.
Which system of equations can be used to find the number of 7-inch plates, x, and the number of 12-inch plates, y, that are in the cabinet?
x+y=140
12x+7y=15
7x+12y=140
7x+12y=15
x+y=15
7x+12y=140
x+y=15
12x+7y=140
.05n+.10d=1.35
n+d=1.35
n+d=17
At a restaurant, the cost for 2 burritos and 1 tortilla salad is $20.57. The cost for 3 burritos and 3 tortilla salads is $36.24. Which pair of equations can be used to determine b, the cost of a burrito, and t, the cost of a tortilla salad?
b + t = 20.57
3b + 3t = 36.24
2b + t = 20.57
3b + 3t = 36.24
2b + t = 20.57
b + t = 36.24
b + 2t = 20.57
b + t = 36.24
แป้นคำตอบWriting Systems of Equations
คำถามทั้งหมด: 10
x + y = 49
20x + 50y = 1430
4x + 6y = 13
3x + 7y = 13.5
s + a = 530
3s + 4a = 1740
3q + 1z = 0.75
3x+3y=120
3h + 2d = 315
2h + 4d = 450
0.25q+0.10d=2.85
q+d=18
x+y=15
7x+12y=140
.05n+.10d=1.35
2b + t = 20.57
3b + 3t = 36.24
