Answer: Second option.
Step-by-step explanation:
Let be "e" the number of easy puzzles Tina solved and "h" the number of hard puzzles Tina solved.
Set up a system of equations:
You can use the Eliminationn Method to solve this system of equations:
- Multiply the first equation by -30.
- Add the equations.
- Solve for "h".
Therefore, through this proccedure, you get:
Answer:
The resultant speed is 294.5 mi/h in a direction N79.7°E
Step-by-step explanation:
Let
East and North as the positive x and y-axis, respectively.
West and South as the negative x- and y-axis, respectively.
Answer:
Answer is 3
Step-by-step explanation:
Because the Perimeter is true and area is true.
Answer:
119°
Step-by-step explanation:
if sum of two angles=180,then they are supplementary.
61+x=180
x=180-61=119
Answer: Bottom right is not true (last one)
rate = 26/6.5 = 4
4 in per minute (b) -
so it's constant rate (a)
15 x 4 = 60 (60 inch. in 15 minutes) (c)