<span>Substitute (I) into (II), we have:
</span>
<span>Replace (II) in (I), we have:
</span>
Answer:
each student sell:
Lori = 55 pizzas
Steve = 69 pizzas
<span>
</span>
A mountain climber needs to descen 1,500 feet. He wants to do so in 4 equal discents. How far should he travel in each descent?
2 answers:
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<span>Substitute (I) into (II), we have:
</span>
<span>Replace (II) in (I), we have:
</span>
Answer:
each student sell:
Lori = 55 pizzas
Steve = 69 pizzas
<span>
</span>
Solution
Find the y-intercept for following equation:
Using the slope equation formular:
The value of y when x = 0
Hence the answer is - 1