googoomylizard
10.03.2021 •
Mathematics
Select the correct answer.
If a =0.3 and b=0.5, what is the value of a+b?
A. 8/10
B. 8/9
C. 80/90
D. 88/100
Solved
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Ответ:
Ответ:
Option 1 is correct that is x=17.
Step-by-step explanation:
We have been given the information:
122 is decreased by 5 times a number.
The result is equal to number increased by 20
let the number be x
So, according to the question equation becomes:
122-5x =x+20
We will solve for x to get the number:
Rearranging the terms
122-20= x+5x
On simplification:
102 =6x
so, x will be 102/6 =17
hence, option 1 is correct.