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arsen [322]
3 years ago
13

1. A train traveled at an average speed of 23 miles per hour for 6 hours and 20 miles per hour for 8 hours. The total number mil

es that the train
traveled is___miles.
Mathematics
1 answer:
LekaFEV [45]3 years ago
5 0

Answer:

298 miles

Step-by-step explanation:

23 x 6 = 138

20 x 8 = 169

169 + 138= 298

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A bike tire has a diameter of 16 inches. What is the radius of the bike? What is the circumference of the bike?
Alexeev081 [22]

Answer:

radius-8 inches cause math

circumference-50.27

Step-by-step explanation:

3 0
3 years ago
An economist believes that interest rates for thirty-year fixed-rate mortgage loans are decreasing. To investigate this further,
Contact [7]

Answer:

The null hypothesis is H_0: p = 0.22

The alternate hypothesis is H_1: p < 0.22

Step-by-step explanation:

To investigate this further, the economist would like to test the claim that the percent of thirty-year fixed-rate mortgage loans that have a 4.75 percent interest rate is less than 22%.

At the null hypothesis, we test that the proportion is of 22%, that is:

H_0: p = 0.22

At the alternate hypothesis, we test that the proportion is less than 22%, that is:

H_1: p < 0.22

7 0
3 years ago
If there’s 40 students and 55% students passed.<br> What number of students passed
OlgaM077 [116]

Answer:

22

Step-by-step explanation:

40x.55=22

5 0
3 years ago
For each gym membership sold, the gym keeps $42 and the employee who sold it gets $8. What is the commission the employee earned
horrorfan [7]

Answer:

Commission of the employee = 16%

Step-by-step explanation:

It is given that:

Amount kept by gym = $42

Amount given to employee = $8

Total fee = 42 + 8 = $50

Commission rate = \frac{Commission}{Total\ fee}*100

Commission rate = \frac{8}{50}*100

Commission rate = 0.16 * 100 = 16%

Therefore,

Commission of the employee = 16%

4 0
3 years ago
Read 2 more answers
Distance between points (7,6) (-3,-1)
GaryK [48]

Answer:

Step-by-step explanation:

(7,6)    (-3,-1)

(x1,y1)  (x2,y2)

Distance=\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}\\\\=\sqrt{(-3-7)^{2}+(-1-6)^{2}}\\\\=\sqrt{(-10)^{2}+(-7)^{2}}\\\\=\sqrt{100+49}=\sqrt{149}\\\\=12.21

4 0
3 years ago
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