3×10的a次方加 5 乘10的B次方加 7乘10的C次方 等于5073 求A加B加C的值

Question

如题所述

Answer 1

a+b+c=4
过程：因为和为5073，既然是10的若干次幂，只有5*10^b可以满足千位是5，故b=3，同理，a=0,c=1,求和，a+b+c=4

Answer 2

3×10^a+5×10^b+7×10^c=5073=3×10^0+5×10^3+7×10
对比，得
a=0 b=3 c=1
a+b+c=0+3+1=4

Answer 3

A=0 B=3 C=1
A+B+C=4

Answer 4

When re<3*10^5, the subcritical breeze resonance shall be controlled complying with that the wind velocity at the top of the structure (vh) shall not exceed the critical wind velocity (vcr), in which the values of vcr and vh can be calculated by the following formulas: