Issac drove the first three hours at 44 miles per hour.
Step-by-step explanation:
Given,
Average speed of Isaac = 49 mph
Let,
x be the speed during last three hours.
Speed during first three hours = 4x-172
Average = 
Multiplying both sides by 2
Dividing both sides by 5
Speed during last three hours = x = 54 mph
Speed during first three hours = 4x-172 = 4(54)-172 = 216-172 = 44 mph
Issac drove the first three hours at 44 miles per hour.
Keywords: average, division
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Answer:
10.
Step-by-step explanation:
If you mean the number of combinations of 2 from 5 it is
5*4 / 2*1
= 10.
Answer:
To write 8000 miles in scientific notation, first find a natural number between 1 and 10. (8)
Now, figure out how many decimal places we have to move to the left.
8000.0 --> 8.0000 (Three
)
Now, write the number 8 multiplied by 10 to the third power.
( 8 × 10^3 miles )
Step-by-step explanation:
If you divide 25 by 12, then you will get 2.083 (3 repeating). If we round that, it will turn to about 3 inches.
31 + (4*2^2 + 8*2) + (3*2^2 + 5*2 + 20) + (7*2 + 30) = 129
