204/68=3, 207/69=3, 210/10=3, 213/71=3, 216/72=3, 219/73=3
Answer:
x = 3.6
B. {7.88}
Step-by-step explanation:
x · 10 = 6 · 6
10x = 36
10x ÷ 10 = 36 ÷ 10
x = 3.6
8 · x = 9 · 7
8x = 63
8x ÷ 8 = 63 ÷ 8
or x = 7.875
7.875 rounded to the nearest tenth is 7.88.
Let n be the number 18=60% of n
18=0.6n
18/0.6=n
30=n