Answer:
- Book -$20/11 and pencil - $17/11
Step-by-step explanation:
Let the set price of pencil be p and the set price of book be b
<u>Then we have equations:</u>
<u>Simplify the first equation:</u>
<u>And substitute p in the second equation: p = 7 - 3b</u>
- 4(7 - 3b) + b = 8
- 28 - 12b + b = 8
- 11b = 20
- b = 20/11
<u>And finding value of p:</u>
- p = 7 - 3(20/11) = 1/11(77 - 60) = 17/11
Answer:
Step-by-step explanation:
That is called the vertex
Answer:
Total= $4+($1x)
Step-by-step explanation:
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