substitute x for y-1
2(y-1)-y=6 distribute
2y-2-y=6 subtract y in 2y
y-2=6 add 2 to get y by itself
y=8
Put y back into equation x=y-1
x=8-1
X=7
Answer:
- The perimeter of the whole square is <u>19.79898987</u> (to be exact).
- The area of the whole square is <u>24.5</u>
(Use Sine and Cosine to find the side lengths.)
Hope this helped!! :)
Answer:
70.
Step-by-step explanation:
Let x be the required number.
We are asked to find the number whose 90% equals to 63.
We can represent our given information in an equation as:
Now, we need to solve for x.
Therefore, 90% of 70 is 63.
Answer: 209
Step-by-step explanation: