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mojhsa [17]
3 years ago
9

The table shows the heights y (in feet) of a baseball x seconds after it was hit. Predict the height after 5 seconds

Mathematics
1 answer:
Mandarinka [93]3 years ago
7 0

Answer:

3 feet

Step-by-step explanation:

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cluponka [151]

Answer:

11. x=15 , 12. x=-16, 13 x is greater than or equal to 15 , 14 x=-3 , 15 x=-3, 16 x=15/2 , 17 x is greater than is equal to -4, 18: x is greater than -11

Step-by-step explanation:

11. 4x+15=75

subtract 15

4x=60

divide

x=15

12. 2x = -32 (subtract 13 from each side)

divide

x=-16

13. multiply each side by

-3/2

x is greater than or equal to 15

14. -3x -18 + 5 = -4

isolate x

-3x=9

x=-3

15. -5x-30 +5=-10

isolate x

-5x = 15

x= -3

16. 2x + 16 = 6x - 14

isolate x

4x = 30

x= 15/2

17 isolate x

x is greater than is equal to -4

18. isolate x

x is greater than -11

4 0
3 years ago
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Delsym middle school has 1,800 students. A random simple of 80 shows that 24 have cell phones. Predict the number of students in
Paul [167]
Cross multiply and set it up like this.

1800 X
------- • -------
80 24

Multiply 1800•24
Then divide by 80 and you get 540.
7 0
3 years ago
Hi! how many times does 9 go into 67???? plz help me
Nina [5.8K]

Answer:

it goes into 67 7 times

Step-by-step explanation:


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3 years ago
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Find the length of the rectangle.<br><br> A. 10 in.<br> B. 20 in.<br> C. 27 in.<br> D 70 in.
Dmitriy789 [7]
10 in

This is a answer
6 0
3 years ago
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Flying against the wind, an airplane travels 7520 kilometers in 8 hours. Flying with the wind, the same plane travels 6500 kilom
bezimeni [28]

Answer:

Rate of plane in still air = 1120 km/h

Rate of wind = 180 km/h

Step-by-step explanation:

Let the rate (speed) of the plane in still air = u km/h

Let the rate (speed) of the wind = v km/h

Formula for speed is:

Speed = \dfrac{Distance}{Time}

Given that against the wind, airplane travels 7520 km in 8 hours.

The speed against the wind will be slower so,

Against the wind, speed = (u -v ) km/h

Using above formula:

(u-v) = \dfrac{7520}{8} km/h\\(u-v) = 940 km/h ..... (1)

Given that with the wind, airplane travels 6500 km in 5 hours.

The speed with the wind will be faster so,

With the wind, speed = (u +v ) km/h

Using above formula:

(u+v) = \dfrac{6520}{5} km/h\\(u+v) = 1300 km/h ..... (2)

Adding (1) and (2) to solve for u and v:

2u = 2240\\\Rightarrow u = 1120\ km/h

Putting u in (1):

1120-u=940\\\Rightarrow u = 180\ km/h

So, the answers are:

<em>Rate of plane in still air = 1120 km/h</em>

<em>Rate of wind = 180 km/h</em>

<em></em>

6 0
3 years ago
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