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sesenic [268]
3 years ago
6

Heather, Chang, and Justin served a total of 93 orders Monday at the school cafeteria. Chang served 2 times as many orders as Ju

stin. Heather served 5 more orders than Justin. How many orders did they each serve?
Mathematics
2 answers:
meriva3 years ago
5 0
Write an equation where x = Justin's orders 
93 = (x) + (2x) + (x + 5)
Simplify the equation:
93 = 4x + 5 
Subtract 5 from both sides:
88 = 4x
Divide 4 on both sides:
22 = x
Solve for the orders:
x = 22 = Justin
22(2) = 44 = Chang
22 + 5 = 27 = Heather. 


Hope this helps!

Illusion [34]3 years ago
5 0
Let the # of orders sold by these 3 people be represented by H, C and J.
Then H+C+J=93.
C=2J
H=J+5
Find H, C and J.

Let's eliminate C.  Substitute 2J for C in      H+C+J=93:  H+2J+J = 93
Now let's eliminate H:  Subst. J+5 for H in this last equation:

J+5   +   2J   +   J  =  93   =>       4J + 5 = 93   => 4J = 88.

Thus, J = 88/4 = 22.

J handles 22 orders.
H handles 22+5 (or 27) orders.
C handles the rest:  2(22) (or 44) orders.

Check:  do the numbers 22, 27 and 44 add up to 93, as they must?  Yes.
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Answer:

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<u>Answer:</u>

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<u>Detailed Explanation:</u>


A) Scalene



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____________________________________________________________



E) Obtuse



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