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Mnenie [13.5K]
3 years ago
12

Question b. Someone plz help me

Mathematics
1 answer:
Svetlanka [38]3 years ago
5 0
The teachers plan to raise 3/4 of of the 8th grade.

The 8th grade plans to raise 4/3 of the teachers.
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Please help me with this problem please!!!!!!!!!!!!!!
777dan777 [17]

Answer:

Brain

Step-by-step explanation:

7 0
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
allochka39001 [22]

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.

Let t be the time in minutes. Then k, the number of kilometers, can be found from proportion:

\dfrac{1}{9}\ km - 1 minute

k km - t minutes.

Thus,

\dfrac{\dfrac{1}{9}}{k}=\dfrac{1}{t},\\ \\k=\dfrac{1}{9}\cdot t.

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

7 0
3 years ago
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a shipping company delivered 38728 letters and 41584 packages. write and solve an equation to find how many items the company de
kolbaska11 [484]

38,728 + 41,584 = 80,312

The company delivered 80,312 items.

7 0
3 years ago
Write the equation in vertex form for the parabola with focus (7, –27/4) and directrix y= – 13/4
Nataliya [291]

Answer:

x2 +8x +4y +4 = 0

4y= -x2 -8x -4y = -.25*x^2 -2x -1

a = -.25b = -2c = -1

x position of vertex:

h = -b / 2a

h = 2 / 2*-.25h = 2 / -.5h = -4

y position of vertex:

k = ah^2 + bh + ck = -.25*-4^2 + -2*-4 + -1k = -4 +8 -1k = 3

VERTEX = (-4, 3)*

x value of focus =x value of vertex = -4

y value of focus =(1 (-b^2 -4ac)) / 4a

a = -.25 b = -2 c =-1

y value = (1 (-4 -4*-.25*-1)) / 4*-.25

y value = (1 (-4 -4*-.25*-1)) / -1

y value = (1 -4 +1) / -1y value = (-2 / -1)y value = 2

focus value = (-4, 2)

Answer is the last one.

7 0
2 years ago
What is 11% of 200?!
marusya05 [52]
200*11/100
200 times 11 divide by 100
8 0
3 years ago
Read 2 more answers
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