Answer:
x = −10
Step-by-step explanation:
1. Add 12.11x to both sides.
−10.5 = 75.6 − 3.5x + 12.11x
2. Simplify 75.6 - 3.5x + 12.11x to 75.6 + 8.61x.
−10.5 = 75.6 + 8.61x
3. Subtract 75.6 from both sides.
−10.5 − 75.6 = 8.61x
4. Simplify −10.5 −75.6 to −86.1.
−86.1 = 8.61x
5. Divide both sides by 8.61.
= x
6. Simply to 10
−10 = x
7. Flip it.
x = −10
Answer:
See below and attached.
Step-by-step explanation:
Draw a rectangle.
Divide it in half.
Divide each part in half again.
Lastly, divide each part again in half.
This will give a total of 8 sections.
Project a uses 1/2 of the fabric. This means it will use 4 out of the 8 pieces.
Project b uses 1/4 of the fabric. This means it will use 2 out of 8 pieces.
So the fabric that is left is 1 - 1/2 - 1/4 = 1/4.
You can find the amount left for any number of yards of fabric by taking f(x) = x/8 - 3/4
