Examkin

Soru

Zorluk: KolayRatios and Proportions

A maintenance crew uses 22 gallons of primer for every 55 gallons of paint. If the crew uses 1010 gallons of primer, how many gallons of paint are needed?

Cevap: 25 / 25 gallons / 25 gal

Cevap

25
The given ratio of primer to paint is 2:52:5. Since 1010 gallons of primer is 55 times the original 22 gallons, you must also multiply the 55 gallons of paint by 55 to maintain the ratio. Therefore, 5×5=255 \times 5 = 25 gallons of paint are needed.

Adım Adım Çözüm

1
Set up a proportion using the given ratio of primer to paint.
25=10x\frac{2}{5} = \frac{10}{x}
To relate the base ratio to the actual amounts used, where xx represents the unknown gallons of paint.
2
Solve the proportion for xx.
x=5×102=25x = \frac{5 \times 10}{2} = 25
Using cross-multiplication isolates xx to find the required amount of paint.

Anahtar Kavram

Solving direct proportions
Bu soruyu puanla

Konular

Ratios and Proportions

Bu konudan daha fazla soru