1. A student had multiplied a number by 4/3 instead of dividing it by 4/3 and got 70 more than the correct answer. Find the number.
Answers
Answered by
0
Answer:
90
Step-by-step explanation:
let the number be x
so x × 4/3=x÷4/3 + 70
4x/3= x × 3/4 +70
4x/3=3x/4+70
4x/3-3x/4=70
16x-9x/12=70
7x/9=70
7x=630
x=90
so the number is 90
hope it helps
pls thank and mark as brainliest
Answered by
2
Answer:
Let the number be x.
Therefore, (x × 4/3) - (x ÷ 4/3) = 70
Therefore, 4x/3 - x × 3/4 = 70
Therefore, 4x/3 - 3x/4 = 70
Therefore, 16x/12 - 9x/12 = 70
Therefore, 7x/12 = 70
Therefore, 7x = 70 × 12
Therefore, x = 70 × 12 / 7
Therefore, x = 120
Answer - The number is 120.
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