Tuesday

July 22, 2014

July 22, 2014

Posted by **fei** on Thursday, November 1, 2012 at 11:30pm.

to white paint to a percent comparison. If it is

not possible, explain why.

a. The fraction of a mix that is red paint is

b. The ratio of red to white paint in a different

mix is 2 to 5.

10. If possible, change each comparison to a fraction

comparison. If it is not possible, explain why.

a. The nut mix has 30% peanuts.

b. The ratio of almonds to other nuts in the mix is 1 to 7.

- math -
**Reiny**, Friday, November 2, 2012 at 8:04amThese kind of questions are often done incorrectly

9 a) missing information

b) if the ratio of red paint to white paint is 2 : 5

that means there are 2parts red and 5 parts white for a total of 7 parts

so the**fraction**of the paint which is red is 2/7

and 2/7 (100%) is appr 28.86%

10

a)30% or 30/100 or 3/10 of the mixture is peanuts

b) ratio of almonds to other nuts = 1 : 7

so the percentage of almonds in the mixture = 1/8(100%) = 12.5%

check:

suppose we have a 1000 g mixture

then amount of almonds = .125(1000) = 125 g

then amount of other nuts = 1000-125 = 875 g

so the ratio of almonds : other nuts

= 125 : 875

= 1 : 7

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