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If a is b percent of:, and z is 200% of y, then what is y, in terms of
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05 Apr 2024, 00:05
05 Apr 2024, 00:05
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81% (01:25) correct
18% (01:22) wrong based on 11 sessions
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If a is b percent of z, and z is 200% of y, then what is y, in terms of a and b?
A. \(50ba\)
B. \(\frac{50b}{a}\)
C. \(\frac{50a}{b}\)
D. \(\frac{ab}{50}\)
E. \(\frac{a}{50} * b\)
A. \(50ba\)
B. \(\frac{50b}{a}\)
C. \(\frac{50a}{b}\)
D. \(\frac{ab}{50}\)
E. \(\frac{a}{50} * b\)
Re: If a is b percent of:, and z is 200% of y, then what is y, in terms of
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18 May 2024, 05:41
18 May 2024, 05:41
Expert Reply
Plug in values that satisfy the given constraints. Let a = 50 and b = 25. If 50 is 25% of z, then z = 200. If z = 200, then y = 100. Now, plug in 50 for a and 25 for b into the choices, and see which choice yields a value of 100
Re: If a is b percent of:, and z is 200% of y, then what is y, in terms of
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19 May 2024, 02:10
19 May 2024, 02:10
1
Generally picking numbers is a fine strategy but it can be time consuming if you have not carefully planned exactly what you are trying to find or test. Don’t pick numbers if you are doing it at “random”.
You could solve this using quick substitutions;
i) a = (zb)/100
ii) z = 2y
therefore) a = (2yb/100)
The question asks for the value of y. So, rearrange to isolate y.
100a = 2yb
50a = yb
50a/b = y
You could solve this using quick substitutions;
i) a = (zb)/100
ii) z = 2y
therefore) a = (2yb/100)
The question asks for the value of y. So, rearrange to isolate y.
100a = 2yb
50a = yb
50a/b = y
