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GaryK [48]
3 years ago
12

The number of tickets collected by joshua,kenneth,and larry is in the ratio 2:5:8.kenneth collected 85 tickets

Mathematics
1 answer:
mart [117]3 years ago
3 0
I don't understand you questions
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SOLVE THE EQUATION SHOW YOUR WORK 3x = 45
Hunter-Best [27]

Answer:

x = 15

Step-by-step explanation:

3x = 45

x = 45/3

<em><u>x = 15</u></em>

4 0
3 years ago
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A car travels along a straight stretch of road. It proceeds for 16.2 mi at 57 mi/h, then 24.6 mi at 44 mi/h, and finally 45.1 mi
LekaFEV [45]

Answer:

The average velocity the entire trip was 43.25 mi/h

Step-by-step explanation:

In this case we have to calculate an average based on the miles traveled. First we have to calculate the total of miles traveled, then calculate the portion of the total travel of each and with this calculate the average speed during the trip. First the total miles traveled:

TotalMiles=16.2+24.6+45.1=85.9

Now the percentages:

At 57 mi/h were \frac{16.2}{85.9}=0.19

At 44 mi/h were \frac{24.6}{85.9}=0.29

At 37.8 mi/h were \frac{45.1}{85.9}=0.52

Now multiplying the speed by the portion and summing them we can have the average velocity:

57*0.19+44*0.29+37.8*0.52=43.25

The average velocity the entire trip was 43.25 mi/h

5 0
3 years ago
A chestnut falls out of a tree 45 feet above the ground. Use the vertical motion model, H=-16t^2+vt+s s to find how long it take
valentinak56 [21]

Answer:

1.7 seconds

Step-by-step explanation:

we have

H=-16t^2+vt+s

where

v is the initial velocity (in feet per second)

s represents the initial height (in feet)

In this problem we have

v=0 ---> because the object is dropped

s=45\ ft

substitute

H=-16t^2+45

Remember that

When the chestnut hit the ground the value of H is equal to zero

so

For H=0

-16t^2+45=0

solve for t

16t^2=45\\t^2=2.8125\\t=\pm1.7\ sec

therefore

The solution is t=1.7 sec

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3 years ago
Some one please help with question 10!!!
Darya [45]

Answer:

Choice A.

2 {x}^{ \frac{2}{5} }  \times y ^{ \frac{2}{3} }

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Classify the system correctly <br> Y = 5x +2<br> 10x - 2y = 12
s344n2d4d5 [400]

Answer:

It's a simultaneous equation because it as two solution

Step-by-step explanation:

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3 years ago
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