Answer:
A. (2,10)
Step-by-step explanation:
5x + y = 20
y = 5x
The second equation is already solved for y, so substitute 5x for y in the first equation to find x.
5x + 5x = 20
10x = 20
x = 2
Now substitute 2 for x in the second original equation to find y.
y = 5(2)
y = 10
Answer: (2, 10) which is A.
We can write one fifth as

7 times of w , we can write as = 7w
Now we have to subtract one fifth from seven times of w.
So we can write it in algebraic expression as
Answer:
It is an irrational number,
as a decimal rounded to the tenth place is 1.7
Step-by-step explanation:
All square roots are irrational numbers
Answer: <span>-2x-10=-2(x+5)</span>
<span>
-2x-10
Taking out common factor -2
= -2( x + 5 )</span>