I need help here's the question A bathtub can hold 90 gallons of water. The faucet flows at a rate of 3 gallons per minute. What percentage of the tub will be filled after 9 minutes?

In 9 minutes the tub will be 30% full

Step-by-step explanation:

How long will it take to fill the whole tub? 90 ÷ 3 = 30

It takes 30minutes to fill 100% of the tub.

What percentage of the tub will be filled after 9 minutes?

part/whole = 30/100 = 9/x

100 × 9 = 900

30x = 900

30x/30 = 900/30

x = 30

so, converting firstly the mixed fractions to improper fractions and then "adding".

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true