<em>The right question is:</em>
Answer:
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Step-by-step explanation:
Given
Required
Solve for x and y
Make y the subject of formula in the second equation
Substitute in the first equation
Open the bracket
Collect Like Terms
Multiply both sides by 2
Divide both sides by 31
Recall that
So;
Hence;
<em></em><em> and </em><em></em>
Answer:
-1
Step-by-step explanation:
2.5 - 3.5x = 8 - 4x - 6
0.5x = 2 - 2.5
0.5x = -0.5
x = -1
Multiply 1.5 times 7. That comes to 10.5 cups per week. Now convert it to quarts. There are 4 cups in one quart, so divide 10.5 by 4. That comes to 2.625 quarts per week. Now convert it to gallons. There are 4 quarts in a gallon, so divide 2.625 by 4. That comes to about 0.7 gallons a week, or 7/10.
The first one is 31.875 and the second is 12 I don't know how to explain to get it. Sorry
Answer:
IK
Step-by-step explanation:
If you draw out the triangles it is easier to see
