Hey there cutie! Your answer would be 10 years bc 5*10=50
Hope this helps!!
Answer:
-3.5, -5/2, 3/4, 1.25, 2
Step-by-step explanation:
First you do the negatives then the positives.
Negatives the higher the number after the negative sign is the lower the number actually is.
Then you do the positives like you normally do them.
Answer:
20
Step-by-step explanation:
We can tell from the little square in the corner that this is a 90 degree angle, so all three of the expressions of x should add up to 90:
x + 2x + (x + 10) = 90
Combine like terms:
4x + 10 = 90
4x = 80
Divide by 4:
x = 80/4 = 20
The answer is 20.
Hope this helps!
2|7 − 7x| = 2x + 4
|7 - 7x| = x + 2
7 - 7x = x + 2 or 7 - 7x = -(x + 2)
-8x = -5 or 7 - 7x = -x - 2
x = 5/8 or -6x = -9
x = 5/8 or x = 9/6
x = 5/8 or x = 3/2
To check for extraneous solutions, we check both solutions in the original equation.
<em>Check solution 5/8:</em>
2|7 - 7x| = 2x + 4
|7 - 7x| = x + 2
|7 - 7 * 5/8| = 5/8 + 2
|56/8 - 35/8| = 5/8 + 16/8
21/8 = 21/8
<u>Solution x = 5/8 works.</u>
<em>Check solution 3/2:</em>
2|7 - 7x| = 2x + 4
|7 - 7x| = x + 2
|7 - 7 * 3/2| = 3/2 + 2
|14/2 - 21/2| = 3/2 + 4/2
|-7/2| = 7/2
7/2 = 7/2
<u>Solution 3/2 also works.</u>
Answer: x = 5/8 or x = 3/2