1.
Hamburger costs $1.50 per pound and soy costs $1.00 per pound. The school cafeteria uses 50 more pounds of soy than hamburger and spends $350 a week. How much soy does the school use?
A.
170 pounds
B.
233 pounds
C.
120 pounds
D.
350 pounds
Hint
2.
A brand of grape drink that is 25% grape juice is mixed with another brand that is 75% grape juice. The result is 7 gallons of grape drink that is 35% grape juice. How much of the brand that is 25% grape juice was used?
A.
1.4 gallons
B.
7 gallons
C.
5.6 gallons
D.
6 gallons
Hint
3.
A person biking uphill travels 15 miles in 1hour.
The same person biking downhill travels 15 miles
in
hour. Find this person's average speed.
A.
30 mph
B.
22.5 mph
C.
15 mph
D.
20 mph
Hint
4.
A chemistry experiment calls for a 25% solution of copper sulfate. Juanita has 20 milliliters of 15% solution. How many milliliters of 35% solution should she add to obtain the required 25% solution?
A.
15 milliliters
B.
17 milliliters
C.
23 milliliters
D.
20 milliliters
Hint
5.
Hakan has 50 milliliters of a 10% acid solution. How many milliliters of 45% acid solution should he add to create a 35% acid solution?
A.
78 milliliters
B.
125 milliliters
C.
97 milliliters
D.
100 milliliters
Hint