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Helga [31]
3 years ago
7

Sales Daria sells televisions. She earns a fixed amount for each television and an additional $25 if the buyer gets an extended

warranty. If Daria sells 17 televisions with extended warranties, she earns $1,445. How much is the fixed amount Daria earns for each television?​
Mathematics
1 answer:
aliina [53]3 years ago
5 0
Answer: Daria earns a fixed amount of $55 for each​ television.
Step-by-step explanation:
Let a represent the fixed amount that Daria earns for each​ television.
Daria earns a fixed amount for each television and an additional $25 if the buyer gets an extended warranty. This means that if she sells b televisions with extended warranties, the total amount that she would earn is
ab + 25b
If Daria sells 14 televisions with extended warranties,she earns $1,120. Therefore,
14a + 14 × 25 = 1120
14a + 350 = 1120
14a = 1120 - 350
14a = 770
a = 770/14
a = 55
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_____

<em>Comment on tools</em>

A graphing or scientific calculator is useful for these. Something like a TI-84, or any of the equivalents, will have financial calculations like this built in. There are also numerous apps available for phone or tablet that will do financial calculations.

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I thinks that’s right hope this helps :)
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