Proportional Relationships
ISEE Middle Level Quantitative Reasoning · Flashcards
ISEE MIDDLE LEVEL QUANTITATIVE REASONING · FLASHCARDS
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QUESTION
What percent is
18
18
18
of
72
72
72
using $ \frac{\text{part}}{\text{whole}}=\frac{p}{100}$?
QUESTION
What is
x
x
x
if $ \frac{x}{5}=\frac{12}{15}$?
QUESTION
What is
y
y
y
if
y
=
k
x
y=kx
y
=
k
x
,
k
=
3
4
k=\frac{3}{4}
k
=
4
3
, and
x
=
20
x=20
x
=
20
?
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ANSWER
y
=
15
y=15
y
=
15
. Substituting into the equation yields
y
=
(
3
/
4
)
×
20
=
15
y = (3/4) \times 20 = 15
y
=
(
3/4
)
×
20
=
15
.
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