What number needs to be added to 5 and 3 so that the ratio of the first number to the second becomes 3:2?
2 answers:
Answer:
7
Step-by-step explanation:
x + 3 : x + 8 : : 2 : 3
(x + 3) \times 3 = (x + 8) \times 2 \\ 3x + 9 = 2x + 16 \\ 3x - 2x = 16 - 9 \\ x = 7 \\ x + 3 = 7 + 3 = 10 \\ x + 8 = 7 + 8 = 15 \\
10 : 15
2 : 3
Answer:
+1 #
=5+1:3+1
=6:4
=3:2 #
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