Better Buy
The 5-pound box sells for $9.20. The 17-pound box sells for $30.94. Which box is the better buy?
3x=15
What is x?
5
Write 17/4 as a mixed number.
4 1/4
Add –5 + 2 =
-3
Solve for y.
5.8 + 1 = y
6.8
A 25-pound bag of cat food costs $20.50. A 35-pound bag of the same cat food costs $28.35. Which bag of cat food is the better buy?
3x=21
What is x
7
Write 108/19 as a mixed number.
5 13/19
Add –3 + –4 =
-7
Solve for r.
5.1 − 2 = r
3.1
A 20-pound bag of birdbird food costs $16.60. A 35-pound bag of the same bird food costs $28.35. Which bag of bird food is the better buy?
35
8x=104
What is x?
13
Write 8 5/8 as a improper fraction
69/8
Subtract –3 − 3 =
-6
Solve for k.
24.8 - 7 = k
17.8
An 8-ounce package costs $2.72. A 12 ounce package costs$4.32. An 18-ounce package costs $6.30. Which package is the best buy?
The 8-ounce package is the best buy.
7x=98
What is x?
14
Write 14 52/94 as a improper fraction
1368/94
Multiply –2 × 9 =
-18
Solve for y.
59.7 + 29 = y
88.7
The track team needs new uniforms. The students plan to sell plush toy eagles (the school mascot) for $5 each. The students find three companies on-line that sell stuffed mascots. Company A sells 18 eagles for $49.86. Company B sells 12 eagles for $33.60. Company C charges $44.64 for 16 eagles. Which company has the best buy?
Company A has the best buy
9x=117
What is x?
13
Write 284 83/109 as a improper fraction
31039/109
31,039/109
Divide –7/7 =
-1