Answer:
(-3, -1); x = -3; y = -1
Step-by-step explanation:
-3x + 5y = 4; x + y = -4
solving via substitution
rearrange second equation: y = -x - 4
-3x + 5(-x - 4) = 4
-3x - 5x - 20 = 4
-8x -20 = 4
-8x = 24
x = -3
- 3 + y = -4
y = -1
(-3, -1)
Check
- 3 + -1 = -4
Answer:
Step-by-step explanation:
"To make x the subject" means to have the equation with all the terms in x on one side. As of now, y is the subject of the equation.
You start by subtracting 2 from both sides, you should get the following.
Then you multiply by 2 from both sides, you should end up with the following.
Therefore, you get the following.
Finally, you distribute and get the answer.
Answer:
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Answer:
23,128.56 qt
Step-by-step explanation:
We need to add the conversion from L to qt:
1 L = 0.26 gal = 0.26(4 qt) = 1.04 qt
Multiplying by 22239 L, we have ...
22,239 L = 23,128.56 qt
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<em>Comment on the answer</em>
The conversion factor given is good for 2 significant digits, so the answer would be appropriately rounded to 23,000 qt. The real conversion is to 23,496.519025 quarts when rounded to 6 decimal places.
Answer:
The answer is 6
Step-by-step explanation:
10x-6x=24
4x=24
x=24/4
x=6