Answer:
11 1/5
Step-by-step explanation:
subtract 9 from both sides
5x = 56
divide both sides by 5
x = 56/5
11 1/5
Answer:
y = -3
Step-by-step explanation:
9x + 7y = -12
9(1) + 7y = -12
9 + 7y = -12
7y = -12 - 9
7y = -21 (divide both sides by 7)
y = -3
Answer:
y=1152
Step-by-step explanation:
Answer:
The constant of proportionality is the ratio between numbers that expresses the rate at which the numbers increase or decrease. These two numbers are directly proportional when they increase and decrease at the same rate.