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xxTIMURxx [149]
3 years ago
6

The time t required to drive a certain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at

30 miles per hour, how long will it take to drive the same distance at 50 miles per hour?
Mathematics
2 answers:
TEA [102]3 years ago
8 0
It will take 70 hours
Stolb23 [73]3 years ago
3 0

Answer:

70

Step-by-step explanation:

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In trapezoid HJLK, M and N are midpoints of the legs. Find KL. Help me please
Ira Lisetskai [31]
MN is the  mid-line of a trapezoid HJLK.<span>
The length of the mid-line of a trapezoid is half of the sum of the lengths of its bases </span>⇒
<span>
(KL + HJ)/2 = MN
(KL + 45)/2 = 28
KL + 45 = 28 * 2
KL + 45 = 56
KL = 56 - 45
KL = 11

</span><span>
</span>
4 0
3 years ago
What is the answer for the diagram?
Westkost [7]

Answer:

1340-

Step-by-step explanation:

5 0
3 years ago
Find the value of x
Ahat [919]

recall that a circle has a total of 360°.

so that missing central angle is then 360° - 110° - 65° - 90°. Well, the arc's angle measurement is the same as the central angle they're in, so the x° is the same as 360° - 110° - 65° - 90°.

4 0
2 years ago
Help I’ll give you 30 points
Gnesinka [82]

Answer:

a) 16.25 centimeters

b) 6.8 centimeters

Step-by-step explanation:

We can set up a proportion for both of these problems.

a) Look at the longest side of each triangle. We can set up a fraction: 7.2/18. We can also set up a fraction for XZ and PR:

6.5/x

x represents the length you're trying to find.

Since the triangles are similar, we have an equation:

7.2/18=6.5/x

Cross multiply

16.25

XZ is 16.25 centimeters long.

b)

We can do same thing:

7.2/18=x/17

Cross multiply

6.8

QR is 6.8 centimeters long.

Hope this helps!

6 0
3 years ago
Read 2 more answers
A family is driving from Phoenix to San Francisco. On a map grid, Phoenix is located at (–12, –16), and San Francisco is located
asambeis [7]
The total distance that the family has driven is the sum of the distances from Phoenix to San Francisco,
                            d = sqrt ((5 - -16)² + (-36 - -12)²) = 10.63 
from San Francisco to Blythe,
                             d = sqrt ((-9 - 5)² + (-20 - -36)²) = 21.26
from Blythe to Los Angeles,
                             d = sqrt ((-4 - -9)² + (-33 - - 20)²) = 5.83
Adding the distances, we get 37.72.

5 0
2 years ago
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