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ikadub [295]
2 years ago
13

A radio-controlled helicopter sells for $20, but needs a lithium battery that costs 25% of that price. A sales tax of 6% will be

added to the cost of both items. What is the total cost of the helicopter, battery and tax? Complete the explanation.
Mathematics
1 answer:
Diano4ka-milaya [45]2 years ago
4 0

Answer:

The total cost of the helicopter = $26.5

The cost of lithium battery = $5.

The amount of sales tax = $1.5

Step-by-step explanation:

We have been given that a radio-controlled helicopter sells for $20, but needs a lithium battery that costs 25% of that price.

We can find the price of battery by finding 25% of 20.

\text{The cost of lithium battery}=\frac{25}{100}\times 20

\text{The cost of lithium battery}=\frac{25}{5}

\text{The cost of lithium battery}=5

Therefore, the cost of lithium battery is $5.

Now let us find the sales tax on the cost of helicopter and lithium battery.

\text{Total sales tax}=\frac{6}{100}\times (20+5)

\text{Total sales tax}=0.06\times (25)

\text{Total sales tax}=1.5

Therefore, the total sales tax will be $1.5.

We can find the total cost of helicopter by adding the cost of helicopter, cost of lithium battery and total amount of sales tax.

\text{The total cost of helicopter}=20+5+1.5

\text{The total cost of helicopter}=26.5

Therefore, the total cost of helicopter will be $26.5.

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