Answer:
(c) $3,93 more
(b) Mr. Sánchez's class earned more money.
(a) [tex]\displaystyle [42, 37] → [j, p][/tex]
Step-by-step explanation:
{79 = p + j
{118,17 = 1,65p + 1,36j
−25⁄34[118,17 = 1,65p + 1,36j]
{79 = p + j
{−86 121⁄136 = −1 29⁄136p - j >> New Equation
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[tex]\displaystyle \frac{-7\frac{121}{136}}{-\frac{29}{136}} = \frac{-\frac{29}{136}p}{-\frac{29}{136}}[/tex]
[tex]\displaystyle 37 = p[/tex][Plug this back into both equations above to get the j-value of 42]; [tex]\displaystyle 42 = j[/tex]
The next step is to plug the solution into the BOTTOM EQUATION to calculate the total money earned for each class:
Sánchez's class
[tex]\displaystyle 61,05 = [37][1,65][/tex]
Altogether, thirty-seven fruit pies cost $61,05.
Kelly's class
[tex]\displaystyle 57,12 = [42][1,36][/tex]
Altogether, forty-two bottles of fruit juice cost $57,12.
* Based on the calculation, it is perfectly clear that Mr. Sánchez's class earned more money by $3,93:
[tex]\displaystyle 3,93 = -57,12 + 61,05[/tex]
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Some one already answered this, heres the link to the answer:
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