You drive 6.0 km at 50 km/h and then another 6.0 km at 90 km/h. Your average speed over the 12 km drive will be _________
Answers
Answer:
Step-by-step explanation:
hello
the speed is the relation between a distance traveled and the time used for it and it is given by the equation
Now, the average speed will be
Step 1
I drive 6.0 km at 50 km/h
from (1) it is possible to isolate t
Let
Step 2
then I drive 6.0 km at 90 km/h
Step 3
FInd total time and total displacement
step 4
finally, put these values into the equation(2)
V=64.29 km/h
Have a good day
Answer:
64.2857 km/h
Step-by-step explanation:
Time taken to drive the first 6.0 km in hours = 6/50
Time take to drive another 6.0 km in hours = 6/90
Total time taken to drive 12 km in hours = (6/50) + (6/90)
= 6(50+90)/50x90
= 6x140/50x90
= 840/4500
The average speed over the 12 km is therefore 12 divided by 840/4500
= (12 x4500)/840
= 64.2857 km/h
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logx+logy=log(xy) so
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since no base is mentioned, it it base 10
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y = 40 + 90x. Which statement represents the meaning of each part
of the function?
(1) y is the total cost, x is the number of months of service,
$90 is the installation fee, and $40 is the service charge per
month.
(2) y is the total cost, x is the number of months of service,
$40 is the installation fee, and $90 is the service charge per
month.
(3) x is the total cost, y is the number of months of service,
$40 is the installation fee, and $90 is the service charge per
month.
(4) x is the total cost, y is the number of months of service,
$90 is the installation fee, and $40 is the service charge per
month.
Answers
Answer:
Option (2).
Step-by-step explanation:
A satellite T.V. company charges one time installation fees along with monthly service charge.
Total cost is modeled by the function y = 40 + 90x
Here y = Total cost charged by the company
A one time installation charges = $40
Service charge for a month = $90
and number of months for which service was used = x months
Therefore, Option (2) explains the function well.
Answers
Answers
The value of the expression √125 will be 5√5.
We can first represent 125 as the product of its prime components in order to simplify the square root of that number. 5 x 5 x 5 is the prime factorization of 125. The quantity that, when multiplied by itself, equals 125 is known as the square root of 125. We may claim that the square root of 125 is 5√5, as 5 x 5 = 25, and 25 x 5 = 125.
Using the principle that the square root of a perfect square is the number itself, we may further reduce the square root of 125. Since 25 is a perfect square in this instance, its square root is just 5. Therefore, 5 √5 may also be used to represent the square root of 125.
More about the Algebra link is given below.
#SPJ6
as 125=5^3
√125=5√5
Answers
Answer:
N K Q
Step-by-step explanation: