Answer:
x = -7/2 or x =1
Step-by-step explanation:
2xx - 5x - 7 = 0
2x(x - 1) + 7(x - 1) = 0
(2x +7) (x -1) = 0
x = -7/2 or x =1
Answer:
Since zero has no value, it does not need to be included when writing a number in expanded form.
Step-by-step explanation:
Answer: 18m
Step-by-step explanation:
9m + 9
Simplify:
9+9=18
Hence, the answer to 9m + 9 is 18m.
Answer:
5 feet & 15 feet
Step-by-step explanation:
<em>The question is to find the lengths of 2 sides of the rectangle</em>.
<u>Solution:</u>
Let shorter side be "x"
Let longer side be "y"
From the question, we can write:
y = 3x
also
y - x = 10
Now, putting the first on second equation, we get:
y - x = 10
3x - x = 10
2x = 10
x = 10/2 = 5
Now, y = 3x, y = 3(5) = 15
So we can say the lengths of 2 sides of the rectangle is 5 feet & 15 feet