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By what rational number should -3/5 be multiplied to obtain 21?
- a)507/4
- b)35
- c)-35
- d)507
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
By what rational number should -3/5 be multiplied to obtain 21?a)507/4...
Let the rational no be x
-3/5 X x = 21
x = (21 X5 )/ -3
x = -35
-3/5 X x = 21
x = (21 X5 )/ -3
x = -35
Most Upvoted Answer
By what rational number should -3/5 be multiplied to obtain 21?a)507/4...
Problem: By what rational number should -3/5 be multiplied to obtain 21?
Solution:
Let the rational number be x.
Then, x*(-3/5) = 21
Multiplying both sides by -5/3, we get
x = -5/3 * 21
x = -35
Therefore, the rational number we need to multiply with -3/5 to obtain 21 is -35.
Answer: (c) -35
Solution:
Let the rational number be x.
Then, x*(-3/5) = 21
Multiplying both sides by -5/3, we get
x = -5/3 * 21
x = -35
Therefore, the rational number we need to multiply with -3/5 to obtain 21 is -35.
Answer: (c) -35
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Community Answer
By what rational number should -3/5 be multiplied to obtain 21?a)507/4...
Let no. be x -3/5*x=21 x= 21*5/-3 x=-35
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By what rational number should -3/5 be multiplied to obtain 21?a)507/4b)35c)-35d)507Correct answer is option 'C'. Can you explain this answer?
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