Simply divide 40 gallons by 100 to find 1%, which is 0.4 gallons and then multiply by 4 to find 4%, which is 1.6 gallons.
0.2 gallons.
1 gallon = 4 quarts so 40 gallons = 40*4 = 160 quarts.
70gallons
4 gallons * * * * * Actually, 4 quarts is 1 gallon so 40 quarts in 10 gallons.
Let X = gallons of 50% antifreeze .5X + .1(70) = .4 (X + 70) .5X + 7 = .4X + 28 .1X = 21 X = 210 GALLONS
To find 4 percent of a value, multiply the value by 0.04. In this instance, 0.04 x 420 = 16.8. Therefore, 4 percent of 420 gallons is equal to 16.8 gallons.
100 percent is 1 40 percent is .4 4 percent is .04
10 quarts (1 gallon/4 quarts) = 2.5 gallons ==========
4 quarts = 1 gallon 40 quarts = 10 gallons
10% of 4 gallons = 0.4 gallo n
4 percent of 40 equals 1.6.
well think about it.it's 20 btw