The answer is A. for this, you have to set up a system of equations. the first one will be the area equation. since you know area=length x width, your equation will be LxW=50. the next equation is L=2W, since the length is two times the width. then, plug in 2W for the L in the other equation and you get 2W^2=50. divide by 2 and get W^2=25. square root both sides and you get W=5. plug back into the other equation to find L=10. Then, add the sides of the rectangle for the perimeter. 10+5+10+5=30.
Multiply 3 with 7.
3 * 7 = 21
The value of the gift card changed by -$21 dollars.
Answer:
y = -1/2x + (-1)
Step-by-step explanation:
Answer:
3 3/5
Step-by-step explanation:
it is right because equivalent fractions are different fractions that name the same number. i think this is right. i hope so. good luck
Answer:
y = x^2 + 6
Step-by-step explanation:
