Answer:
Z = 22
Step-by-step explanation:
plug 9 into the equation
9^2 + z = 103
81 + z = 103
subtract 81 from both sides
z = 22
do the same with -9
since you are squaring -9 this still equals 81 so the answer is the same.
Answer: They washed 60 small cars.
Step-by-step explanation:
5x + 10y = 800
y = 50
5x + 10(50)
5x + 500 = 800
Subtract 500 from each side
5x = 300
Divide each side by 5
x = 60
Answer:
2/3 × 9/5 = 18/15 = 6/5 if need to simplify. or 1 1/5
Step-by-step explanation:
Y=-5x -2 should be the equation I’ll go check tho
Answer:
Step-by-step explanation:
12+6v=v-8
subtract v to 6v
12+5v=-8
subtract 12 to -8
5v=-20
divide both sides by 5
v=-4
