Due tomorrow please help! I need an equation and answer :)

Question

1.) length of a rectangular garden is 7 feet more than the width. The perimeter is 50 feet. Find the width

2.) jean noticed at the store that a sweater costs 3.95 more then a shirt. She bought 3 shirts and 2 sweaters and the total cost was 71.65. What is the price for a shirt and what is the price for a sweater

3.) luging purchased three pairs of shoes and two pairs of boots For 130. If a pair of boots is five dollars less than the price of shoes of shoes, determine the price of a pair of boots

 

 

 

 

 

 

For all of these I need a equation and an answer. Please help, due tomorrow! Thanks :)

Answer 1

1.  L = W + 7

 

Perimeter = 50 = 2L + 2W

50 = 2(W+7) + 2W

50 = 2W + 14 + 2W

36 = 4W

 

9 = W

 

2.  $Sweater = $Shirt + $3.95

 

3 $Shirts + 2 $Sweaters = $71.65

3 $Shirts + 2($Shirts + $3.95) = $71.65

5 $Shirts + $7.90 = $71.65

5 $Shirts = 63.75

 

$Shirt = $12.75

 

$Sweater = $Shirt + $3.95 = $16.70

 

3.  3 $Shoes + 2 $Boots = $130

 

$Boots = $Shoes - $5

$Boots + $5 = $Shoes

 

3($Boots + $5) + 2 $Boots = $130

3 $Boots + $15 + 2 $Boots = $130

5 $Boots = $115

 

$Boots = $23