The question is asking you to rearrange the equation so you have y on its own on one side and everything else on the other.
We have 10x + 5y = 80. So to get y on its own, we have to minus ten x from both sides: 5y = 80 - 10x.
To get y, we have to divide both sides by 5 (whatever you do to one side, you do to the other side). so y = (80 - 10x) / 5, which is y = 16 - 2x
y = 16 - 2x is your answer!
Hope I helped! If you have any more questions, feel free to comment
Answer:
X x 2 ÷ 17
Step-by-step explanation:
X is always considered as our variable.
Using the key words quotient and twice and the word "and" can help you.
Any rhombus has the same length for all for sides, so:
x + 14 = 3x +4
So, we get x = 5
Now, we can write
x + 14 = 8y
Since x = 5,
19 = 8y
so y = 19/8 = 2.375
<span> You can take any one of the equations and substitute the value of x or y in. The length is 19 </span>
9514 1404 393
Answer:
49°
Step-by-step explanation:
Angles A and C are complementary, so we have ...
(3x -7) +(2x +17) = 90
5x = 80 . . . . . . . . . . . . . subtract 10
x = 16 . . . . . . . . . divide by 5
Then the measure of angle C is ...
∠C = 2x +17 = 2(16) +17
∠C = 49