what is the remainder when 7 times the Sum of 6 and 5 is subtracted from 100?
Answers
Answered by
2
Answer:
let the number be x
7 is added to it
=> x+7
sum is multiplied by 5
=> 5(x+7)
product is divided by 9
=> 5(x+7)/9
3 is subtracted from the quotient
=> 5(x+7)/9 - 3
the remainder left is 12
=> 5(x+7)/9 - 3 = 12
add 3 on both sides
=> 5(x+7)/9 = 15
multiply by 9 on both sides
=> 5(x+7) = 15 *9
=> 5(x+7) = 135
divide by 5 on both sides
=> (x+7) = 27
subtract 7 on both sides
x = 20
Answered by
1
Answer:
23
Step-by-step explanation:
100 - (7×(6+5)
= 100 - 77
= 23
Hope it helps
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