SOLUTION: MR. DANIELS AND MR. GRIFFIN INVESTED $120,000 IN A BUSINESS. THEY INVESTED IN A RATIO OF 3 TO 7 RESPECTIVELY. HOW MUCH DID EAT MAN INVEST? I HAVEN'T DONE RATIO FOR A LONG TIME. NEE

Question 958286: MR. DANIELS AND MR. GRIFFIN INVESTED $120,000 IN A BUSINESS. THEY INVESTED IN A RATIO OF 3 TO 7 RESPECTIVELY. HOW MUCH DID EAT MAN INVEST? I HAVEN'T DONE RATIO FOR A LONG TIME. NEED HELP STEP BY STEP IF POSSIBLE. TRYING SOMETHING NEW.
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
Since the ratio is 3 to 7 you can think of 3 parts to 7 parts
3 parts to 7 parts out of 10 parts ( to get the out of number just add 3 and 7 )
3/10 of $120,000 is Mr Daniels part or 3/10 * 120000 = 36000
7/10 of $120,00 is Mr Griffins part or 7/10 * 120000 = 84000
If the problem had a ratio of 3 to 8, the result would have been
3/11 of $120,000 is Mr Daniels part or 3/11 * 120000 = 32727.27
8/11 of $120,00 is Mr Griffins part or 8/11 * 120000 = 87272.72
where the 11 in the denominator is the sum of 3 and 8

RELATED QUESTIONS
Mr. Daniels and Mr. Griffith invested $120,000 in a business. They invested in a ration (answered by rfer)

Mr. Daniels sells memberships to a fitness club. He earned $360 for selling 6 memberships (answered by josgarithmetic)

Mr. Daniels, a 1st grade teacher, drew a right triangle on the board with legs equal to 6 (answered by Alan3354)