0.3x = 0.2 - 0.2x
0.5x = 0.2
x =0.2/0.5 = 2/5
Answer:
Step-by-step explanation:
Lisha is making headbands using ribbon.
each one requires 15.5 inches of ribbon
For 12 headbands Lisha need to buy ribbon = 15.5 × 12
= 186 inches
Therefore, Lisha will need to buy 186 inches ribbon.
160 inches ribbon is not sufficient to make 12 headbands. She will need to buy 186 inches or more.
Answer:
x = sqroot(122)
Step-by-step explanation:
First find the line that goes thru the middle of the shape. It is the hypotenuse of the bottom/left triangle. Use the pythagorean thm.
9^2 + 5^2 = h^2
81 + 25 = h^2
sqroot106 = h
Now sqroot106 is a leg in the right triangle that is on the top/right in the image.
Use pythagorean thm again.
4^2 + (sqroot106)^2
= x^2
16 + 106 = x^2
122 = x^2
sqroot122 = x
The percent that is increased is 80 percent.