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Use ratio and proportion to solve the following business situation.

 

Eighty ounces of Lazy Lawn fertilizer covers 1,250 square feet of lawn.

 

a. How many ounces would be required to cover a 4,000-square-foot lawn?

 

Do not enter units in your answer.

 

 ounces

 

b. If Lazy Lawn costs $1.19 for a 32-ounce bag, what is the total cost to fertilize the lawn?

 

$

 

 Oct 28, 2014

Best Answer 

 #2
avatar+130511 
+5

a)

80/1250 = x/4000   cross-multiply

4000(80) = 1250x     simplify

320000 = 1250x       divide both sides by 1250

320000/1250 = x = 256  

 

b) 

$1.19/32 =x/256           again, cross-multiply

304.64 = 32x                divide by 32 on both sides

$9.52 = x

 

 Oct 28, 2014

2+0 Answers

 #1
avatar
0

At least try and make it seem that you didnt directly copy this from your math homework XD

 Oct 28, 2014
 #2
avatar+130511 
+5
Best Answer

a)

80/1250 = x/4000   cross-multiply

4000(80) = 1250x     simplify

320000 = 1250x       divide both sides by 1250

320000/1250 = x = 256  

 

b) 

$1.19/32 =x/256           again, cross-multiply

304.64 = 32x                divide by 32 on both sides

$9.52 = x

 

CPhill Oct 28, 2014

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