Question

Sage takes 20 minutes longer than Luca to make dinner. Together, they take 45 minutes to

make dinner. How long does it take Luca to make dinner if he cooks alone? Round your
answer to the nearest minute.

Answer 1

Answer: 12.5 minutes

Explanation:

first, to solve, we must make an equation.

( x + 20) + x = 45

x = time it takes Luca to make dinner

x + 20 = time it takes Sage to make dinner

x + 20 + x = 45

2x + 20 = 45

-20 -20

--------------------

2x = 25

(divide both sides by 2)

x = 12.5

Rounding the answer to the nearest minute,

the final answer is that it takes Luca 13 minutes to make dinner