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

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

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.

Step 3. Write the equation.

Cost of 1 studded collar $= 1 \times $ 4.50$

Cost of 3 kerchiefs $= 3 \times $ 3.00$

Cost of 2 doggy T-shirt $= 2 \times $ 6.25$

Cost of 1 leash $= 1 \times $ 5.50$

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

So, the equation will be:

$x = 1 \times 4.50 + 2 \times 6.25 + 3 \times 3.00 + 1 \times 5.50 + 4 \times 3.25$

Step 4. Solve the equation.

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

$\begin{array}{l} x = 4.50 + 12.50 + 6.00 + 5.50 + 13.00 \\ x = $ 41.5 \end{array}$

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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

Step by step solution

Step 1. Given information.

Step 2. Introduce the variable.

Step 3. Write the equation.

Step 4. Solve the equation.

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