Questão 02 - Carlos e sua mãe têm juntos atualmente 47 anos. Sabendo que sua mãe ganhou Carlos aos 23 anos, a equação que repres
enta a soma da idade de Carlos com sua mãe é: * (A) 2x = 47. (B) x + 23 = 47. (C) 2x + 47 = 23. (D) x + 2 = 23. (E) 2x + 23 = 47
1 answer:
Answer:
x+23 = 47
Step-by-step explanation:
Let age of Carlos is x. It is mentioned that the sum of age of Carlos and his mother is 47 years old. Age of Carlos is 23.
We need to find the equation that represents the sum of Carlos' age with his mother.
x+23 = 47 is the required equation.
Also, we can find the age of Carlos as :
x = 47 - 23
= 24 years
Hence, the correct option is (B).
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Step-by-step explanation:
Answer: X=43
Explanation.
1. x-7/9=4
2. x-7=4x9
3. x-7= 36
4. X=36-7
5. X=43
40% of 400 would be 160.
40% is 0.4
so
0.4*400 = 160
to prove my work
400/160 = 0.4 = 40%
The answer is 18,600.
Hope this helps!