Answer:
5x+14y+9z
Step-by-step explanation:
combine 8x and -3x to get 5x
combine 5y and 9y to get 13y
combine -4z and 13z to get 9z
Answer:
1) $14, 2) please see explanation below 3) please see explanation below
Step-by-step explanation:
1.
a) about $15-$1
b) Higher, because the estimate lowered the price that is being subtracted.
c) 15-1=14
Pedro has about $14 left over.
2.
a) 3 is the closes because to solve this question you divide 100.8 by 35. The product is 2.88, thus supporting that 3 is the closes answer.
b) 8 is the closes because to solve this question you divide 49.2oz by 6. The product is 8.2.
c) 0.04 is the closes because to solve this question you divide 20 by 0.78, resulting in 0.039.
3.
a) 2.49 times 6 = 14.88
His parents spent $14.88 on goodie bags
b) 150 divided by 8 = 18.75
His parents spent $18.75 per hour for the bounce house.
c) 14.88 + 18.75 = 33.63 and 182.53 - 33.63 = 148.90
His parents spent $148.90 on his birthday party excluding the goodie bags and bounce house
HOPE THIS HELPS <33333
-Silver
So we have the equations:
y - 4x = 2 --- equation 1
5y - 2x = 1 --- equation 2
(equation 2) * 2
10y - 4x = 2 --- equation 3
(equation 2) - (equation 3)
-9y = 0 so y= 0 and thus x = -1/2
Hope that helps!
