问题
解答题
求未知数X.
(1)X÷0.38=1.65 (2)x×0.7=10.7.
答案
(1)X÷0.38=1.65,
x÷0.38×0.38=1.65×0.38,
x=0.627;
(2)x×0.7=10.7,
x×0.7÷0.7=10.7÷0.7,
x=15
.2 7
求未知数X.
(1)X÷0.38=1.65 (2)x×0.7=10.7.
(1)X÷0.38=1.65,
x÷0.38×0.38=1.65×0.38,
x=0.627;
(2)x×0.7=10.7,
x×0.7÷0.7=10.7÷0.7,
x=15
.2 7