1/3s+14=26
minus 14 both sides
1/3s=12
multiply both sides by 3/1
s=36
Answer: Laundry = $2
Dishes= $1
Step-by-step explanation:
Let the amount paid for doing laundry be x
Let the amount paid for doing dishes be y.
Based on the information in the question, this can be formed in an equation as:
5x + 8y = 18 ..... i
4x + 6y = 14 ...... ii
Multiply equation i by 4
Multiply equation ii by 5
20x + 32y = 72 ...... iii
20x + 30y = 70 ...... iv
Subtract iv from iii
2y = 2
y = 2/2 = 1
Dishes cost $1
Since 5x + 8y = 18
5x + 8(1) = 18
5x = 18 - 8
5x = 10
x = 2
Laundry cost $2
The area of that figure is 84 cubic yards because the formula to find the area of a trapezoid is (base+base)*height divided by 2. 9+15=24 and 24*7=168. 168 divided by 2=84.
Answer:
30%
Step-by-step explanation:
12/40 = 0.3
0.3 * 100 = 30%
So, 30% of students picked pizza.