Answer:
It is 7
Step-by-step explanation:
y = mx+b
y is the total cost.
x is the number of hours.
b : that's 16 dollars.
y = 9x+16
The problem states that the cost was 79 dollars.
Substitute that for y and solve for x.
79 = 9x+16
63 = 9x
x = 7 hours
I hope this helps you
31,9÷4
319/40
7,975
Answer:
The answer is C :)
Step-by-step explanation:
The perimeter of M'N'O'P IS 3 times the perimeter of MNOP
hope i helped :)
Answer:
Mr.Marin worked 45 hour last week.
Step-by-step explanation:
9 x 5 = 45
2 hoses together:
15 mins = 1 pond
1 min = 1/15 pond
1st hose:
24 mins = 1 pond
1 min = 1/24 pond
2nd hose:
1 min = 1/15 - 1/24 = 1/40 pond
So 1/40 of the pond = 1 min
40/40 of the pond = 1 x 40 mins
1 whole pond = 40 mins
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Answer: it will take 40 mins for the 2nd hose to fill up the pond alone.
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