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sp2606 [1]
3 years ago
10

Help me please!!!!!!!!!!!!!​

Mathematics
1 answer:
lana [24]3 years ago
4 0

Answer:

1. 125,000

3 17.5

4. 15

5. 17.5

Step-by-step explanation:

1. Create a unit rate. 20,000/8 = 2,500 straws per hour. This means in 50 hours multiply 2500*50 = 125,000.

3. Mean is the average and is found by adding all the date points and dividing by the number of them.

15 + 16 + 17 + 23 + 1 1+ 19 + 20 + 15 + 18 + 22 + 15 + 19 = 210

210 / 12 = 17.5

4. The mode is the number that occurs most often. Write the numbers in order and choose the one that happens the most.

11, 15, 15, 15, 16, 17, 18, 19, 19, 20, 22, 23

15 is the mode

5. The median is the number in the middle. If two numbers then take the average. The numbers in the middle when written in order are 17 and 18. So the 17+18 / 2= 17.5

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Solve the following equation
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40x+8x^2=0 can be solved for x (there are two solutions):

Divide all 3 terms by the greatest common multiple (which is 8x):

40x+8x^2=0
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       8x       8x

5 + x = 0             produces the root x = - 5.   

Setting 8x = 0 and solving for x produces the root x = 0.

Be certain to check these results.  substitute x = -5 into 40x+8x^2=0.  Is the resulting equation true or false?  Next, subs. x=-5 into 40x+8x^2=0.  Is the resulting equation true or false?
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3 years ago
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If someone runs 4 meters per second, how many kilometers is that per hour?​
Vesna [10]

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14.4 km/h

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When finding km/h given m/s always multiply by 3.6

When finding m/s given km/h do the vice versa (divide by 3.6)

So.. 4km/h x 3.6 = <u>14.4 km/h </u>

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Roberta makes $9 an hour plus a 10.5% commission selling jewelry an hour shift in which she sells $880 worth of jewelry. How muc
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Answer:

Roberta earns $164.4 on an 8 hr shift.

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So if she works for 8 hours she will be making

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Also she earns a commission of 10.5% on selling a jewellery  worth $880

So 10.5% of 880 is

=> \frac{10.5}{100}\times 880

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Hence  Roberta will be earning a total amount of

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3 0
4 years ago
I need help thanks in advance
sergij07 [2.7K]

Answer:

Step-by-step explanation:

The rule is if 2 chords intersect inside a circle, then the measure of the angle formed is one half the um of the measure of the arcs intercepted by the angle and its vertical angle. In other words, angle TSU = 1/2(arc TU + arc MV):

angle TSU = 1/2(90 + 80) and

angle TSU = 1/2(170) and

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3 years ago
Julissa is running a 10-kilometer race at a constant pace. After running for 18 minutes, she completes 2 kilometers. After runni
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After running for 18 minutes, Julissa completes 2 kilometers. If she is running a 10-kilometer race at a constant pace, then she comletes 1 kilometer after running 9 minutes. Now you can find the distance she run after 1 minute. This is \dfrac{1}{9} km.

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Answer: k=\dfrac{1}{9}\cdot t.

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