3,000 = 3 x 10 x 10 x 10 = 3 * 10^3
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10^3 * 3 * (640)
= 10^3 * 3 * (600 + 40)
= 10^3 * (1800 + 120)
= 10^3 * 1920
= 1,920,000
Answer:
80 km/h
Step-by-step explanation:
Let p represent the planned speed in km/h. Using the relation ...
... distance = speed × time
we can take advantage of the fact that the planned trip distance did not change.
... p × 2.5 = (p+20) × (2.5 -0.5)
... 2.5p = 2p +40 . . . . simpify
... 0.5p = 40 . . . . . . . . subtract 2p
... p = 80 . . . . . . . . . . . divide by 0.5
The planned speed was 80 km/h.
Answer:
your answer is 5.4 square inches
I hope it is helpful
3.50x + 5.50x + 6 = 51
# 10
9x + 6 = 51
Subtract 6 from both sides
9x = 45
Divide both sides by 9
x = 5
#11
5x - 18 - 4x = -36
x -18 = -36
Add 18 to both sides
x = - 18
2/3 times 90/1 equals 180/3, which is 60 degrees.