3) Jeremy and Ahmed are painting a wall. Working alone, Jeremy can paint of the wall in
1 hour. Working together, Jeremy and Ahmed
can paint the entire wall in 150 minutes. How
long to the nearest tenth of an hour would it take
Ahmed to paint the entire the wall by himself?

Jeremy and Ahmed are painting a wall.
Working alone, Jeremy can paint of the wall in
1 hour. Working together, Jeremy and Ahmed
can paint the entire wall in 150 minutes. How
long to the nearest tenth of an hour would it take
Ahmed to paint the entire the wall by himself?

∞ this is your sign

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.