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Serggg [28]
3 years ago
8

20 POINTS AND WILL MARK BRAINLIEST

Mathematics
2 answers:
vovangra [49]3 years ago
6 0
Dan815 says:

548 5/8 are 7th grade = 5/8*548=#nmber of 7th graders in total 3/8th are 8th graders = 3/8 *548=#of 8th graders in total 4/5 of Total 7th graders = 4/5*5/8*548 7/8 of total 8th graders = 7/8*3/8*548

Happy studying!
pashok25 [27]3 years ago
6 0
Let's find an eighth of 584. Break this down step by step.

584/8= 73

So, eighth equals = 73.

Now find how many seven and eighth-graders there are by multiplying 73 by the desired number.

73*5= 365 (seventh graders)

73*3= 219 (eighth graders)

So, just divide both numbers by the denominator of the fraction used, and then multiply by the numerator for the correct amount of both who participated.

365/ 5= 73

73*4= 292

292 of the seventh graders participated.

219/8= 27.375

Multiply that by the numerator.

27.375*7= 191.625 (8th graders)

The question said about how many participated, so round 191 up to 192.

292 seventh graders and 192 eighth graders participated in field day.

I hope this helps!
~kaikers
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72

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Use pencil and paper to create a table of values for the equation, x - 2y = 6. Rearrange the equation into the y = mx + b form.
Lunna [17]

Answer:

y = 1/2x -3

x=-2 ⇒ y =  -4

x=-1 ⇒ y =  -3.5

x=0 ⇒ y =  -3

x=1 ⇒ y =  -2.5

x=2 ⇒ y = -2

Step-by-step explanation:

Hi, to answer this question we have to isolate y:

x - 2y = 6

-2y =6-x

y = (6-x)/-2

y = -3+1/2x

y = 1/2x -3  

Now, we have to create a table with the next values (see attachment)

x=-2 ⇒ y = 1/2x -3 = 1/2(-2)-3= -4

x=-1 ⇒ y = 1/2x -3 = 1/2(-1)-3= -3.5

x=0 ⇒ y = 1/2x -3 = 1/2(0)-3= -3

x=1 ⇒ y = 1/2x -3 = 1/2(1)-3= -2.5

x=2 ⇒ y = 1/2x -3 = 1/2(2)-3= -2

Feel free to ask for more if needed or if you did not understand something.

7 0
4 years ago
What are the opposites of 3, 7.5 and -2 2/3?
kirill115 [55]
-3,-7.5,2 2/3 are the opposites of those numbers
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