Answer:
-3.75 but i would guess -3
Step-by-step explanation:
A = (-10 - 5) / (4 - 0) = -15 / 4 = -3.75
7 because constant of proportionality is equal to the ratio between the two variables and here it is 7 because 1y is equal to 7
The cafeteria sold 41 corn chips and 80 potato chips.
Step-by-step explanation:
Let,
Corn chips = x
Potato chips = y
Price of corn chips = $0.80
Price of potato chips = $0.60
According to given statement;
x+y= 121 Eqn 1
0.80x+0.60y=80.80 Eqn 2
Multiplying Eqn 1 by 0.80

Subtracting Eqn 2 from Eqn 3

Dividing both sides by 0.20

Putting y=80 in Eqn 1

The cafeteria sold 41 corn chips and 80 potato chips.
Keywords: linear equation, subtraction
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First of all, move the known term (-9) at the left of the equal with changed sign.
5z = 36+9
5z = 45
Divide both terms by 5
5z/5 = 45/5
z = 9
Answer:
D. 480
Step-by-step explanation:
V= <u>LWH / 3 </u>
<u />
V = <u>12x12x10 / 3</u>
<u>V= 480</u>