Speed=distance/time 440/8 which is 55. She travelled at an average speed of 55
I think the answer is eight
To help you with the equation you should know that 40 is halfway between 35 and 45. That would mean that orange juice would make half of the mixture. It would also be the same for grapefruit juice. That would make it 100 liters of orange juice and grapefruit juice.
You would have to use the Pythagorean theorem to solve this.
Step 1:
-Create a triangle using point (-5,-1)
Step 2:
-Find the base and height of the triangle created.
Base=distance from (-5,0) and point A, (3,-1). (Base is 8 units)
Height=distance from (-5,0) to (-5,5). (Height is 6 units)
Step 3:
Use the Pythagorean Theorem to find the hypotenuse length which is the line segment AC.
8^2+6^2=(AC)^2
64+36=(AC)^2
100=(AC)^2
10=AC
AC is ten units long