1.
Which statement correctly states the percent equation, where
P
is the percentage,
B
is the base, and
R
is the rate?
A.
R
=
PB
B.
P
=
RB
C.
B
=
RP
D.
P
=
RB
100
Hint
2.
62.5% of what number is 10?
A.
625
B.
6.25
C.
0.16
D.
16
Hint
3.
Soundous needs a 50% saline solution. She has 60 milliliters of a 40% solution. How many milliliters of a 70% solution should she add to obtain the required 50% solution?
A.
270 milliliters
B.
180 milliliters
C.
30 milliliters
D.
90 milliliters
Hint
4.
Mindy's hamster, Fluffy, just had babies. Her dad tells her she can keep 15% of the baby hamsters. If Fluffy had 20 baby hamsters, how many of them can Mindy keep?
A.
133 hamsters
B.
3 hamsters
C.
5 hamsters
D.
15 hamsters
Hint
5.
8 is 40% of what number?
A.
32
B.
20
C.
2
D.
3.2
Hint