Solve this linear system 28x + 44y = 964.40 21x + 33y = 723.30
1 answer:
28x + 44y = 964.40
21x + 33y = 723.30
Let's multiply the first equation by 4 and the second by -4
84x + 176y = 3857.6
-84x - 132y = -2893.2
Add the equations together.
0 + 44y = 964.4
Simplify
44y = 964.4
Divide both sides by 44
y = 964.4/44
Since we have the value of y, let's plug 964.4/44 into y for the first equation.
28x + 44(964.4/44) = 964.40
Simplify the left side
28x + 964.4 = 964.4
Subtract 964.4 from both sides
28x = 0
Divide both sides by 0
x = 0
In conclusion,
y = 964.4/44
x = 0
You might be interested in
2,117÷3=705. Is your Product
Wouldn't it be -1 (minus one)? 12 - 1 = 11 and 9 - 1 = 8.
Answer:
9.72°F
Step-by-step explanation:
I think that's right :)
25 because there's 5 people so you take 5 times 5
