well since it is out of five, and there is 2 whole numbers, 2 times 5 would equal 10 , but you still have 1/5 left so you would do 10 plus 1 which would equal 11. He would need to use 11 cups.

7 0

4 years ago

5a-z=8<br> -2a+5z =-6<br> What is the answer

timurjin [86]

Answer:

122 = 7(z + 8) + -5(6 + z) >z = 48

Step-by-step explanation:

122 = 7(8 + z) + -5(6 + z)

122 = (8 * 7 + z * 7) + -5(6 + z)

122 = (56 + 7z) + -5(6 + z)

122 = 56 + 7z + (6 * -5 + z * -5)

122 = 56 + 7z + (-30 + -5z)

Reorder the terms:

122 = 56 + -30 + 7z + -5z

Combine like terms: 56 + -30 = 26

122 = 26 + 7z + -5z

Combine like terms: 7z + -5z = 2z

122 = 26 + 2z

Solving

122 = 26 + 2z

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-2z' to each side of the equation.

122 + -2z = 26 + 2z + -2z

Combine like terms: 2z + -2z = 0

122 + -2z = 26 + 0

122 + -2z = 26

Add '-122' to each side of the equation.

122 + -122 + -2z = 26 + -122

Combine like terms: 122 + -122 = 0

0 + -2z = 26 + -122

-2z = 26 + -122

Combine like terms: 26 + -122 = -96

-2z = -96

8 0

3 years ago

emilio had $150 on a gift card he used the gift card to purchase 8 dvds. adam had $175 on a gift card and used the gift card to

Artyom0805 [142]

150 - 8d = 175 - 10d
-8d + 10d = 175 - 150
2d = 25
d = 25/2
d = 12.5...so each dvd costs 12.50

150 - 8(12.5) = 150 - 100 = 50
175 - 10(12.5) = 175 - 125 = 50

so they will each have 50 bucks left on their card

7 0

4 years ago

PLS HELP an ice cream shop sells 5 times as many cake cones as waffle cones use variable x to represent the number of waffle the

rusak2 [61]

Answer:

Step-by-step explanation:

x = number of waffle cones the shop sells

cake cones = 5 times the number of waffle cones

cake cones = 5x

3 0

3 years ago