Question

3. Lesley bought 4 bags of pretzels and 2 boxes of granola bars for $13.50. Landon bought 1 bag of pretzels and 5 boxes of granola bars for $17.55. What is the cost for one bag of pretzels? What is the cost for a box of granola bars?

Answer 1

Answer:

Problem 3: Let x = price of bag of pretzels Let y = price of box of granola bars  

We have Lesley's purchase: 4x+2y=13.50

And Landon's: 1x+5y=17.55

We can use the elimination method. Let's negate Landon's purchase by multiplying by -1. -1x-5y=-17.55

We add this four times to Lesley's purchase to eliminate the x variable.

2y-20y=13.50-70.2

-18y=-56.7

y = $3.15 = Price of box of granola bars

Plug back into Landon's purchase to solve for pretzels.

x+5*3.15=17.55

x+15.75=17.55

x = $1.80 = price of bag of pretzels

 

Problem 4.

Let w = number of wood bats sold

Let m = number of metal bats sold

From sales information we have: w + m = 23

24w+30m=606

Substitution works well here. Solve for w in the first equation, w = 23 - m, and plug this into the second.

24*(23-m)+30m=606

552-24m+30m=606

6m=54

m=9 = number of metal bats sold

Therefore since w = 23-m, w = 23-9 = 14. 14 wooden bats were sold.

Explanation:

Answer 2

Answer:

1=1 2+2=4 so lesley gas many ptretzels ans granola bars =mc square

Explanation: