1. If 7 is added to five times a number, the result is 57. Find the number
2. Find a number, such that one-fourth of the number is 3 more than 7.
A number is as much greater than 15 as it is less than 51. Find the number
3
Answers
Answered by
0
Answer:
what the hell..solve u..not we
tusharkumarsingh456:
why you are telling like this
Answered by
12
Answer:
1) 10
2) 40
3) 33
Step-by-step explanation:
1) Let the unknown number = x
=> 5x + 7 = 57
=> 5x = 57-7 = 50
=> x =50/5 = 10
=> x=10
2) Let the unknown number = y
=> 1/4 of y = 3 + 7 = y/4 = 10
=> y = 10 * 4 = 40
=> y = 40
3) Let the unknown number = z
=> 51 - z = z - 15
=> z + z = 51 + 15 = 2z = 66
=> z = 66/2 = 33
=> z = 33
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