Answer:
x = 48 and y = 104
Step-by-step explanation:
Given equations are:

From equation 1:

Putting the value of y in equation 2

Now we have to put the value of y in one of the equation to find the value of x
Putting y = 104 in the first equation

Hence,
The solution of the system of equations is x = 48 and y = 104
The value of variable which was assumed for number of hats, is the total number of hats.
2.5x - x + 3.8x + 0.7x = 0.54
ANSWER= X= 0.09
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Answer:
Ok, she walks 3 miles to and from the library.
So in total, she walks 3 miles two times, then in one week, she walks 2*3mi = 6miles.
She says that she walked about 300 miles in total.
We must see if 300 miles is a multiple of 6 miles.
300mi/6mi = 50.
This means that she would walk about 300 miles since she started counting if she went to the library and back home exactly 50 times (again, since she started counting).
And she does this once a week, then if she started counting 50 weeks ago, then it is possible,
the 2 equations that need to be solved are [3x+5] and x-1. If you need the answer to what x is you'd solve it by evening out the problems. so first add one to both so you'd have 3x+6=x then you'd take the 3x and subtract it from both sides making it 6=-2x. Then divide 6 by negative 2 making it -3=x.
8a+4s=840
a=s+30
8(s+30)+4s=840
12s+240=840
12s=600
s=50
A=s+30
a=50+30
a=80
The drama play sold 80 adult tickets