How would I go about working out this type of question? a) The ratio of j to k is 1:3. The ratio of k to m is 4 : 5.Find the ratio j:k: m in its simplest form.

j : k : m = 4 : 12 : 15

Step-by-step explanation:

Given

j : k = 1 : 3 , then k = 3j

Given

k : m = 4 : 5

then expressing in fractional terms

= ( substitute k = 3j )

= ( cross- multiply )

4m = 15j ( divide both sides by 4 )

m = j , so

j : k : m = 1 : 3 : ( multiply each part by 4 to clear the fraction )

            = 4 : 12 : 15

0.84 dang lotta people are looking for this lol or if you round up its 1 but the overall answer to that is 0.84

step-by-step explanation:

answer is  

c.

36

step-by-step explanation: