The answer is : y = -3x + 1
Answer:
2.2x - 4.4
Step-by-step explanation:
0.3(4x-8) - 0.5(-2x+4)
1.2x-2.4-0.5 (-2x+4)
1.2x - 2.4 + x-2
2.2x - 4.4
Hope this helped :)
Answer:
Any value of x x makes the equation true. All real numbers Interval Notation: ( − ∞ , ∞ )
.
The answer is a) which is -8
We have two widths of the same length plus one length
Let the width be
and the length be
Perimeter = 2×width + 2×length
(equation 1)
The cost is $5 per foot on the width and $25 per foot on the length
Total cost = (5 × 2 × width) + (25 × length)
(equation 2)
We have two variables that we need to solve, so we will need to use the simultaneous equations method (either elimination or substitution)
Since equation 1 is given
, we can rearrange the equation to make
the subject
then substitute this into equation 2
Substitute w = 75 back into 190 = w + l
190 = 75 + l
l = 190 - 75
l = 115
Answer:
Length = 115 feet
Width = 75 feet