Помогите с математикой #6

Question

Помогите с математикой #6

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Comments

ой #12

Answer 1

1)2000:x=40; х=2000:40; Х=50; /// 2)y:70=5; у=70*5; у=350; /// 3)(60*a-32):16=13; 60а-32=13*16; 60а=208+32; А=240:60; А=4
4)960:(b+39)= 75-55
960:(b+39)= 20
(b+39)+ 960:20
(b+39)=48
b= 48-39
b= 9
5)12 7/23-6 18/23+t=3 21/23+5 19/23