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Ku ta Software - Infinite Algebra 1
Date,___________ Period _ _
Mixture Word Problems
2) 9 Ibs . of mixed nuts containing 55 % peanuts
were mixed with 6 Ibs. of another kind of
mixed nuts that contain40% peanuts. What
percent of the new_mixture is peanuts ?
1) 2 m 3 of soil containing 35% sand was mixed
into 6 m 3 of soil containing 15% sand. What
is the sand content of the mixture?
----------------~----3) 5 fl. oz. of a 2% alcohol solution was mixed
wi th 11 fl. oz . of a 66% alcohol solution.
Find the concentrati on of the new mixture.
4) 16lb of Brand M Cinnamon w as made by
combining 121b of Indonesian cinnamon
which co ts $19/]b with 4 Ib of Thai
cinnamon whkh costs $llflb. Find the cost
per Ib of the mixture.
5) Emily mixed together 9 gal. of Brand A fruit
drink and 8 gal. of Brand B fruit drink
which contains 48% fruit jUice. Find the
percent of fruit juice in Brand A if the mi xture contained 30% fruit juice.
6) How many mg of a metal containing 45%
nickel must be combined with 6 mg of pure
nickel to form an alloy containing 78 %
nickel?
o
7) 7 L of an acid solution was mixed with 3 L of
a 15 % acid solution to make a 29% acid
solution. Find the percent concentration of the
first solution.
8) 9 gal. of a sugar solu tion was mixed Wi Lh 6
gal . of a 90% sugar soluti on to m ake a 84%
sugar solution. Find the percent
concentration of the first solution _
9) A m etallurgist needs to make 12 .4 lb. of an
alloy containing 50% gold. He is going to
melt and combine one metal that is 60%
gold with another metal that is 40% gold.
How much 9f each sho uld he use?
10) Br and X sells 21 oz. bags of mixed nuts that
contain 29% peanu ts. To make their
product th y combine Brand A mixed nuts
which contain 35% peanuts and Brand B
mixed nuts which contain 25 % peanuts ,
How much of each do they need to use?
1. Steven added 25 mL of water to 125 ml of a 20% salt solution W hat
IS
the salt concentration of the new so!ution')
In
t
wa.er. 2. Mary added 2 L of water to 8 L of a 48o/c nitric ac'd
J _
the aCld'
1 so utlOn What is concentratlOn
of the new solution') ,
3. Jorge added 15 g of sugar to 210
What is the
percent
'f
0
sug ar
.
In
f
_goa 59c sugar solutIon in water.
hiS new solution?
0
~. Rita added 1 gt of ' lc h 1
4
,
Wh·
a 0 0 to gt of a solution that is 20% alcohol in
water.
at IS the percent of alcoh ol in her new solution ?
5. If you w-sh t ­
I
a Increase the percent of acid in 50 mL of a 159£
d
SOIUllon 10 water to 25 %
°d h
c aC I
aCl , ow much pure acid must you add)
). How. many ounce~ of alcohol should be udded to 125 oz of a 45 9(­
SO]utlOn of sugar In alcohol in order to prOduce a 30% sugar solution ~
•
0
In order to increase the concentration of 25 l! of 59(- salt 01 t'
_
Wa ter to 15 % salt, how much salt mu s t be added )
s u IOn In
How ma ny gall ons of
-lk h· - 3 I
ml t at IS '1 % butterfat must be added to 80 Q:al of 1 % butterfat milk to make milk that is 2 o/c butterfat')
~
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