Помогити пажалустаааааа

Question

Помогити пажалустаааааа

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Answer 1

А) 7.62a = 6.8*6.35
7.62a = 43.18
a = 43.18 / 7.62 = 5.67

b) b: 25/6 = 4/7 : 20/21
b : 25/6 = 4/7 * 21/20
b : 25/6 = 3/5
b = 3/5 * 25/6
b = 75/30 = 2.5

3) y : 16/5 = 9/2 : 9/4
y : 16/5 = 9/2 * 4/9
y : 16/5 = 2
y = 2 * 16/5 = 32/5 = 6.4

Comments

а поч 7.62a=? если там 6.8a?