76° 135° 81° X X = please help mee
1 answer:
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Answer:
Slope intercept form is
Answer:
<u>29</u> $1 bills and <u>14</u> $5 bills.
Step-by-step explanation:
Let be the number of $1 bills and
be the number of $5 bills. With the information given, we can set up two equations:
1)
2)
There are two ways to solve it; with elimination or substitution. In this explanation, I will solve it with elimination.
To solve it with elimination, multiply the first equation by 5 to get:
Then, you can subtract the equation we just got by the second equation to get:
Thus, . To find y, just substitute x for 29 in the first equation to get:
. Therefore,
. That means that there are 29 $1 bills and 14 $5 bills. You can check by substituting those values for x and y in either of the first two equations.
Hope this helps :)