Answer:
20
Explanation:
the 7 parts of the ratio represents 28 roses. Dividing the number of roses by 7 will give the value of one part of the ratio.
= 4 ← value of 1 part of the ratio
5 parts = 5 × 4 = 20 ← number of carnations
Question
the ratio of roses to carnations is 7:5 if there are 28 roses how many carnations are there
you can solve with an equation
7 : 5 = 28 : x
x = 5 * 28 : 7
x = 20
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= 4 ← value of 1 part of the ratio