A chemist has 84 ounces of a solution. He pours the solution into test tubes. Each test tube holds 2/3 oz. How many test tubes can he fill?
2007-07-03 17:52:11 · 10 answers · asked by fondagoodman1 2 in Science & Mathematics ➔ Mathematics
To find the number of test tubes, divide 84 ounces in to each test tube ( which is 2/3 ounces)
84 / (2/3) = 84 *3 / 2 = 126
Hence you need 126 test tubes for 84 ounces.
To verify back the answer, 126 * 2/3 = 84 ounces.
2007-07-03 18:02:30 · answer #1 · answered by Vivek 2 · 0⤊ 1⤋
What is Asked?:
How many test tubes can he fill?
Given:
84 ounces- total solution
2/3 oz.- each test tube
Sol'n:
84 oz / 2/3 oz=N
84/1 X 2/3=252/2 (cross multiply)
252/ 2=126 test tubes
therefore; he can fill 126 test tubes from 84 oz of solution.
2007-07-04 02:24:19 · answer #2 · answered by Flor F 2 · 0⤊ 0⤋
Take total you have:
84 oz and divide it by how much can go in each:
2/3 oz. When dividing by a fraction, you can multiply it
by it's reciprocal 2/3 = 3/2 because this is easier visually to calculate, So:
(84 oz) x (3/2 oz) = 126 test tubes.
2007-07-04 01:00:27 · answer #3 · answered by Reese 4 · 0⤊ 1⤋
i believe that to find the solution to this equation, you should do this: 84 divided by 2/3 to get the solution to the equation. the answer would be 126 test tubes.
2007-07-04 01:44:18 · answer #4 · answered by katara653719 2 · 0⤊ 1⤋
84 ounces / [ (2 / 3) ounces / tube ]
= 84(3 / 2) tubes
= 126 tubes
2007-07-04 01:29:03 · answer #5 · answered by mathjoe 3 · 0⤊ 1⤋
84÷2/3 = (84)(3/2)
= (42)(3)
= 126
2007-07-07 23:53:13 · answer #6 · answered by gm 2 · 0⤊ 0⤋
84/(2/3) = 126
2007-07-04 00:58:05 · answer #7 · answered by ironduke8159 7 · 0⤊ 0⤋
126
2007-07-04 09:46:23 · answer #8 · answered by Anonymous · 0⤊ 0⤋
let there be x such tts
2/3 x =84
x =42*3
x= 126
2007-07-04 00:59:23 · answer #9 · answered by Ξlectronegative™дtif® 2 · 0⤊ 1⤋
84/.66=127.27 TIMES
2007-07-04 01:02:40 · answer #10 · answered by DEVO 1 · 0⤊ 1⤋