MATHEMATICS MIDDLE SCHOOL

Math question down below

Answers

Answer 1

Answer:

Answer:

315

Step-by-step explanation:

42 is 84 percent of 50. If you apply this to 375, you get 315 because 84 percent of 375 is 315

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Alondra Please help I really need help Please help I really need help Please :(

Answers

please try to ask seperate questions instead of asking a whole bunch of questions (my opinion)

answers since too much work to show completely
17. x=5, y=1 so the annswer is (5,1)

18. quarters are worth 0.25 and nickes are woth 0.05, represent quarters as q and nickels as n so total cois=n+q and total value=0.25q+0.05n .total= 30 so the equations would be
n+q=200
0.05n+0.25=30
answer is n=100

19. answer x=-1 y=4 so answer is (-1,4)

20. so 12=4r+1b and 8=1b+2r
answer red=2lb blue=4lb

21. the only one in the shaed are is (1,-4)
(1,-4) is the naswer

22. it satisfies only one and is NOT part of the solutin set

23. the answer with 'h>20' and '3.50p+8h<200 (the third one) is correct

24. so jusr remember it is in (x,y) form so just look for the coorrect answer
answer is the fourth one (0,0), (0,1) , (6,3), (6,13)

25. not sure but min is 2

26. y=2
second one

27. y<-5/4x+3 first one

ANSWERS.
17. first
18. third
19. fourth
20. third
21. fourth
22. third
23.third
24. fourth
25. not sure but min is 2
26. second
27. first

page 1.)

1.) answer is (1,5)

2.) answer is 100

3.) answer is (5,7)

4.) answer is r=4 and b=2

Page 2.)

1.) answer is (-1,3)

2.) answer is c.

Page 3.)

1.) answer is a

2.) answer is b

3.) answer is d

Page 4.)

1.) answer is y=2x

2.) answer is d

I hope this helps

HELP ME FOR NUMBER 1 THROUGH 11

Answers

saddgbdeghefrtnbhdgbndbhdfbdfdfvbcdvfbfdbdvb

Solve each equation by completing the square. If necessary, round to the nearest hundredth.19. X²-18x=19
20. 4 a²+8a-20=0

Answers

$x^2-18x=19\n\nx^2-2x\cdot9+9^2-9^2=19\n\n(x-9)^2-81=19\n\n(x-9)^2=19+81\n\n(x-9)^2=100\iff x-9=\pm√(100)\n\nx-9=-10\ \vee\ x-9=10\n\nx=-10+9\ \vee\ x=10+9\n\nx=-1\ \vee\ x=19$

$4a^2+8a-20=0\ \ \ \ /:4\n\na^2+2a-5=0\n\na^2+2a\cdot1+1^2-1^2=5\n\n(a+1)^2-1=5\n\n(a+1)^2=5+1\n\n(a+1)^2=6\iff a+1=\pm\sqrt6\n\na=-\sqrt6-1\ \vee\ a=\sqrt6-1\n\na\approx-3.45\ \vee\ a=\approx1.45$

The volume of a cone is 31.5 inches cubed and the radius is 3 inches what is the height of the cone

Answers

Volume of a cone: (1/3)πr²h

Data:
V=31.5 in³,
r=3 in

Then:
V=(1/3)πr²h
31.5 in³=(1/3)π(3 in)²h
(1/3)π(3 in)²h=31.5 in³
(1/3)π(9 in²)h=31.5 in³
3πin² h=31.5 in³
h=(31.5 in³) / (3π in²)
h≈3.34 in

answer: the height of the cone is 3.34 in.

members of the math club want to raise more than $552.50 for a trip to a state competition. The club has raised 12% of the funds.The members want to find out how much money, m, they each need to raise to make up the difference. what inequality shows how much money each 7 club members needs to raise if each raises the same amount?

Answers

I don't know this yet

Which question is a statistics question that anticipates variability? A) How old am I? B) How old is my cat? C) How old is my neighbor? D) How old are the students in my school?

Answers

D, because there are several students that are in your school. There would be many different answers.

Answer:

The answer is D

Step-by-step explanation:

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