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sladkih [1.3K]
3 years ago
12

Sue bought ten items at an average price of $3.60. The cost of eight of the items totaled $30. If the other two items were the s

ame price, what was the price she paid for each ?
1) $15, 2) $7.50, 3) $6, 4) $3, 5) $1.50

I guess the answer is $7.50.
What is yr answer ???
Mathematics
2 answers:
Katen [24]3 years ago
7 0
Ok soo if the 10 items avg $3.60 each then your total for the ten items was $36. if we know that the cost of 8 items is $30 then there is 6 dollars left. nd if we no that the remaining 2 are the same price then each should be $3  
Nina [5.8K]3 years ago
6 0
\frac{30+2x}{10}=3.60\ \ \ \ /\cdot10\\\\30+2x=36\ \ \ \ /-30\\\\2x=6\ \ \ /:2\\\\x=3\ (\$)

Answer:\$3\ (4)
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52.9°

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3. Problema 2: Suponga que un fabricante de radios tiene la función de costo total C (x) = 43x + 1850 dólares y la función de in
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Como no se nos dice qué encontrar, también podemos encontrar el beneficio obtenido por la venta de 351 unidades de radio.

Dado

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