The distance to the store is
.. (0.3 h)*(10 mi/h) = 3 mi
The time home is
.. (3 mi)/(30 mi/h) = 0.1 h
The average speed is the total distance divided by the total time
.. speed = (3 mi +3 mi)/(0.3 h +0.1 h) = (6 mi)/(0.4 h) = 15 mi/h
Ishaan's average speed was 15 mi/h.
Answer:
1
Step-by-step explanation:
there are 4 spaces between each big mark
Answer:
104 pictures
Step-by-step explanation:
Answer:
(9/2, 4/3) or just x = 9/2, y = 4/3. (it's the same thing)
Step-by-step explanation:
First, multiply the first equation 2x + 3y = 13 by 2, so that you get 4x + 6y = 26. Now you have the same coefficient for y. Now, subtract the second equation 6y = 8 (i simplified it first) from the first one that is doubled. After that, you would have just one equation, 4x = 18. So x = 18/4 = 9/2. Substitute x to solve for y, and you'd get 4/3.
