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Chapter 2: Q92. (page 89)

Write and evaluate an expression to find the total cost of purchasing 1 collar, 2 T-shirts, 3 kerchiefs, 1 leash and 4 flying disks.

Short Answer

Expert verified

Total cost =$41.5.

Step by step solution

01

Step 1. Given information.

Cost of 1 studded collar = $4.50

Cost of 1 kerchief = $3.00

Cost of 1 doggy T-shirt = $6.25

Cost of 1 leash = $5.50

Cost of 1 flying disk = $3.25

02

Step 2. Introduce the variable.

Consider the total cost of purchasing 1 collar, 2 T-shirts, 3 kerchiefs, 1 leash and 4 flying disks be x.

03

Step 3. Write the equation.

Cost of 1 studded collar =1脳$4.50

Cost of 3 kerchiefs=3脳$3.00

Cost of 2 doggy T-shirt=2脳$6.25

Cost of 1 leash=1脳$5.50

Cost of 4 flying diskrole="math" localid="1642079399323" =$3.254脳$3.25

So, the equation will be:

x=1脳4.50+2脳6.25+3脳3.00+1脳5.50+4脳3.25

04

Step 4. Solve the equation.

Take the equation x=1脳4.50+2脳6.25+3脳3.00+1脳5.50+4脳3.25and solve it.

x=4.50+12.50+6.00+5.50+13.00x=$41.5

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