0
Verified answer
1 quart.
Wiki User
∙ 11y ago
How many quarts of pure antifreeze must be added to 5 quarts of 20 percent antifreeze to make a 30 percent antifreeze solution?
In the original solution, you have 5 quarts total, 20% antifreeze. So 20% * 5 = 1. You have 4 qt water and 1 qt antifreeze. You will add an amount A, to this mixture. When you add, the new total volume (in quarts) is 5 + A, and the percentage is:(1 + A)/(5 + A) x 100%. So when you start out at A = zero, you have 1/5 x 100% = 20%.So set up the equation (1 + A)/(5 + A) * 100 = 30, and solve for A.Multiply both sides by (5+A) and isolate the term A. Note that since you are adding, the value of A will never be negative (so you don't have to worry about the denominator (5+A) being zero.Answer = 5/7 (quarts) = 0.714285714285155 quarts.
Is 19 quarts bigger than 5 gallons?
5 gallons is equal to 20 quarts. This means 5 gallons is greater than 19 quarts.
25 percent of what number is equal to 5?
25 percent of 20 is 5.
What is the fraction between 20 percent and 40 percent?
20% is half of 40%.
Is 19 quarts greater than 5 gallons?
4 quarts in 1 gallon. 5 gallons times four equals 20 quarts. 19 quarts is not bigger than 5 gallons.
What is 20 percent of 15 quarts?
15*20/100 = 3 quarts
How many quarts of 5 percent milk and 2 percent milk should be mixed to yield 45 quarts of 3 percent milk?
30 quarts of 2 percent 15 quarts of 5 percent
How many cups are in 5quart?
5 quarts is 20 cups5 quarts is 20 cups
How many Quarts in 5 gallon?
20 qts 1 gallon = 4 quarts 1 quart = 0.25 gallon
What is 20 percent of 12 quarts?
20% of 12 quarts= 20% * 12= 0.2 * 12= 2.4 quarts or 76.8 ounces (US measure)
How manycups of water is 5 quarts?
5 quarts is 20 cups.
How many quarts are in 20 gallons?
There are 4 quarts in a gallon. Therefore there are 5 gallons in 20 quarts.One gallon has the same volume as four quarts.20 quarts has the same volume as five gallons (20/4=5).
How much quarts are in 5 gallons?
20 quarts.
20 quarts equals how many gallons'?
1 gallon = 4 quarts so 20 gallons = 4*20 = 80 quarts. Simple!
How many gallons are 20 quarts?
1 US Gallon = 4 quartsSince there is 4 quarts in a gallon you divide 20 quarts by 4 gallons and you will get the final answer which is 5 gallons.20 / 4 = 5 Gallons
How many quarts of pure antifreeze must be added to 5 quarts of 20 percent antifreeze to make a 30 percent antifreeze solution?
In the original solution, you have 5 quarts total, 20% antifreeze. So 20% * 5 = 1. You have 4 qt water and 1 qt antifreeze. You will add an amount A, to this mixture. When you add, the new total volume (in quarts) is 5 + A, and the percentage is:(1 + A)/(5 + A) x 100%. So when you start out at A = zero, you have 1/5 x 100% = 20%.So set up the equation (1 + A)/(5 + A) * 100 = 30, and solve for A.Multiply both sides by (5+A) and isolate the term A. Note that since you are adding, the value of A will never be negative (so you don't have to worry about the denominator (5+A) being zero.Answer = 5/7 (quarts) = 0.714285714285155 quarts.
How many quarts are in a 20 gallons?
1 quart is equal to 0.25 gallons, or one quarter of a gallon. Therefore, 20 quarts is equal to 20 x 0.25 = 5 gallons.
