A city has 3 new houses for every 9 old houses. If there are 15 new houses in the city, how many old houses are there?
2 answers:
Answer:
45 old houses
Step-by-step explanation:
new houses : old houses
3 : 9
15 : ?
(3 = 1st ratio and 9 = 2nd ratio)
To find the missing ratio, divide the first ratio from the new ratio:
15 / 3 = 5
Take the product and multiply that by the second ratio to find the missing ratio:
9 x 5 = 45
Answer:
45 old houses
Step-by-step explanation:
What I did:
I divided 15 by 3, to get an idea of the 'scale' which gives us 5
for every 9 old houses, we have 3 new ones; so to scale be multiply the base number by our "scale" number, 5.
3 * 5 = 15 new houses
8 * 5 = 45 old houses
You might be interested in
Dododkdldlldlflffosjdididkdkdkdkd
Answer:
it is a triangles because the other are the name of the triangle.
Step-by-step explanation:
Well, one advantage simply is that its a loan. If its a loan, you can pay little by little until its paid off. Not sure if this helps, but I hope it does.
