Question

Elias and Niko are polishing the silver at the heritage museum. Elias could polish all the silver himself in 40 minutes,

That task would take Niko 50 minutes to complete alone, Which table is filled in correctly and could be used to
determine how long it would take if Elias and Niko polished the silver together?

Answer 1

A

Explanation:

i think

Answer 2

x = 22.22 minutes

Explanation:

No tables were included.

Here's how to solve

1polish/40min + 1polish/50min = 1 polish/x minutes

1/40 + 1/50 = 1/x

use 200 as common denominator

5/200 + 4/200 =9/200

9/200 = 1/x

Cross multiply

9x = 200

Divide both sides by 9

x = 200/9

x = 22.22 minutes