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3 years ago

PLEASE HELP I WILL GIVE BRAINIEST. How much students received between 8 and 9 gifts?

Mathematics

2 answers:

Step2247 [10]3 years ago

8 0

Answer:

It would appear that 9 students recieved between 8 and 9 gifts.

Step-by-step explanation:

If you look at the X axis and see the gifts recieved, and the Y axis and see the students, you can easily add those two together and get the answer.

I hope I helped you, and a "Brainliest" is always appreciated! ☺

Nikitich [7]3 years ago

5 0

Answer:

Step-by-step explanation:

9 students did

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Answer:

a^2.

Step-by-step explanation:

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3 years ago

The diameter of a circle is 30 meters. Find the radius

kkurt [141]

Answer:

Step-by-step explanation:

2r=d

r= radius

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3 years ago

A plane left 30 minutes late than its schedule time and in order to reach the destination 1500 km away in time it had to increas

schepotkina [342]

Let x= the usual speed
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1500/(x+100) would equal how long it would take the plane now
So $\frac{1500}{x} - \frac{1500}{x+100} = \frac{1}{2}$ because it would lose 30 minutes already
Simplify:
$\frac{1500(x+100)-1500x}{x(x+100)} = \frac{1}{2}$
$\frac{1500x+150000-1500x}{x^2+100x} = \frac{1}{2}$
$\frac{150000}{x^2+100x} = \frac{1}{2}$
$\frac{300000}{x^2+100x} =1$
$300000= x^{2} +100x

x^2+100x-300000=0

x^2+600x-500x-300000=0

x(x+600)-500(x+600)

(x-500)(x+600)

x=500, x \neq -600
$

The usual speed was 500 hm/hr

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3 years ago

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Answer:

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3 years ago

Please help me solve 26 and 27

seropon [69]

no 28

solution

(AB)=100

ABC+CBD=100

4x+2+3x-7=100

7x-5=100

7x=100+5

x=105/7

x=15

(CBD) =3x-7

3(15)-7

45-7

Step-by-step explanation:

by using above information

8 0

3 years ago