How do you do this one: Draw a diagram of this statement. Then answerthe question that follow.
Only two ninths of the 72 billy goats were gruff. The rest were coridial.
a) How many of the billy goats were cordial?
b) What was the ratio of gruff billy goats to cordial billy goats?
2006-10-05 16:40:59 · 6 answers · asked by Anonymous in Education & Reference ➔ Homework Help
a)56
b)2/7
2006-10-05 16:43:02 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
Just do 72 / 9 x 7 = 56 were cordial
Ratio is 16/56 Which is equal to 2/7. 2 gruff, 7 cordial
2006-10-05 23:46:18 · answer #2 · answered by Anonymous · 0⤊ 0⤋
First of all, one ninth = 1/9 and two ninths = 2/9
a.) # of cordial billy goats = 72 * (1 - 2/9) = 56
b.) # of gruff billy goats = 72 * 2/9 = 16
So, the ratio is 18:56, and then simplified to 2:7
But the faster way to find the ratio is to use the two ninths and seven ninths (1 - 2/9). You will get 2:7 from that too.
Hope it helps.
2006-10-05 23:48:31 · answer #3 · answered by jclcheng777 2 · 0⤊ 0⤋
gruff = 2/9 x 72 = 16
cordial = 72 - 16 = 56
ratio = 16:56 or 8:28 or 4:14 or 2:7
2006-10-05 23:47:21 · answer #4 · answered by Daniel Ira L. Cuevas 2 · 0⤊ 0⤋
72 * (2/9) = 16 gruff 72-16=56 cordial
a) 56
b) 16:56 or 2:7
2006-10-05 23:45:05 · answer #5 · answered by Sheila 3 · 0⤊ 0⤋
a) 56 billy boats were coridal
b) 2:7
2006-10-05 23:43:35 · answer #6 · answered by buccinator 3 · 0⤊ 0⤋