Question

解比例:(1)7:x=4.8:9.6 (2)2分之x=3分之1.2 (3)3分之一:0.05=1又9分之7:x

Answer 1

(1)7:x=4.8:9.6

x=(7*9.6)/4.8=14

(2)x/2=1.2/3

x=(2*1.2)/3=0.8

(3)1/3:0.05=16/9:x

x=(0.05*16/9)/(1/3)

=(1/20)*(16/9)*3

=4/15