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777dan777 [17]
2 years ago
15

Help me please!!!!!!!!!!!!!

Mathematics
1 answer:
QveST [7]2 years ago
7 0

Step-by-step explanation:

0 < X < 24

.....................

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No. which have factors 2 & 5 have 2 & 5 as their prime factor
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3 years ago
Jane spent 3 hours exploring a mountain with a dirt bike. First, she rode 55 miles uphill. After she reached the peak she rode f
Neko [114]

Answer:

Her speed on the summit was 35 mph.

Step-by-step explanation:

Her speed on the summit was "x" mph while her speed while climbing was "x - 10" mph. The distance she rode uphill was 55 miles and on the summit it was 28 miles. The total time she explored the mountain was 3 hours. Therefore:

time uphill = distance uphill / speed uphill = 55 / (x - 10)

time summit = distance summit / speed summit = 28 / x

total time = time uphill + time summit

3 = [55 / (x - 10)] + 28 / x

3 = [55*x + 28*(x - 10)]/[x*(x - 10)]

3*x*(x - 10) = 55*x + 28*x - 280

3x² - 30*x = 83*x - 280

3x²  - 113*x + 280 = 0

x1 = {-(-113) + sqrt[(-113)² - 4*(3)*(280)]}/(2*3) = 35 mph

x2 = {-(-113) - sqrt[(-113)² - 4*(3)*(280)]}/(2*3) = 2.67 mph

Since her speed on the uphill couldn't be negative the speed on the summit can only be 35 mph.

6 0
3 years ago
Which plane contains points E, F, and D?
Aleks04 [339]

Answer:

none of the above? sorry not too sure

5 0
2 years ago
Х<br> If<br> 5.3<br> =<br> 12, what is the value of x?<br> 8<br> 0 ООО<br> 18<br> o 24
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Answer:18

Step-by-step explanation:

8 0
2 years ago
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