Answer:
B) 10 visits
Step-by-step explanation:
Let the number of visits be x.
Pool A cost: 1x + 40 = x + 40
Pool B cost: 5x
Set the two costs equal and solve for x.
x + 40 = 5x
Subtract 5x from both sides. Subtract 40 from both sides.
-4x = -40
Divide both sides by -4.
x = 10
Answer: B) 10 visits
The answer is 18 because 3 times 6 is 18
Y = -2x - 4
y = 2x +4
add the two equation
2y = 0 , y =0
2x + 4 = 0
2x = -4
x = -2
You can answer it in fraction or decimal.
Fraction: In fraction, write 9 above 917 like this: 9/917. That is the answer in fraction.
Decimal: In decimal, do the long-division algorithm. You should get 0.009815.
