Mathematics Middle School

HELP MEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer 1

Answer:

r = 20

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

Related Questions

A doctor replaces the fish tank in her office. Do the fish have more room to swim in the new tank? Find the volume of each tank to find out.

The volume of the new tank is ____________cubic feet

Answers

Answer:

Step-by-step explanation:

YEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEET

For every 4 quarters Robert has, he has 10 dimes. What is the ratio of quarters to dimes marbles? If Robert has 8 quarters, how many dimes does he have? Draw a visual model to represent the total coins.

Answers

Answer:

1. 4:10

2. 20 dimes

Step-by-step explanation:

Number 1. 4:10

20 dimes

What does x represent in the equation.
[tex]1/3 ( x - 10) = -4[/tex]

Answers

Answer:

Step-by-step explanation:

ONCE AGAIN URGENT
A boat is going 144 miles upstream (against the current) on a river. The speed of the boat in still water is 60 miles per hour. the speed of the river current is 80% less than the speed of the boat in still water. How long does the journey take?

Answers

Answer:

3 hours

Step-by-step explanation:

60 x 80% = 48

144 ÷ 48 = 3

PLS HELP ASAP 30 POINTS

Answers

Theoretical probability=45%
Experimental probability=75%

How many 1/4 inch cubes does it take to fill a box with width 1 1/4, length 3 3/4 inches and height 2 1/4 inches?

Answers

Answer:

4 of those 1/4th inches wouldnt it ?

Step-by-step explanation:

Volume of the box: 1 1/4 x 3 3/4 x 2 1/4 = 10 33/64 cubic inches.

Volume of cube : 1/4 x 1/4 x 1/4 = 1/64

Number of cubes: 10 33/64 / 1/64 = 673 cubes

Help! Giving brainliest and 10+ points, A ball is dropped from the top of a 400-ft tall tower. The relationship between the time, t, in seconds, and the height, h(t), in feet, of the ball can be modeled by a quadratic function. Specific values of the function are shown in the table below

Part A: Determine the average rate of change of h(t) between t = 2 and t = 5.
Part B:Explain what this average rate of change means in terms of the context.

Answers

To small a picture sorry

Give an example of an equation with an infinite number of solutions. Then make one change to the equation so that it has no solution.

An example of an equation with infinitely many solutions: 4x + 3 = 4x +_____
The equation with one change and no solutions: 4x + 3 = ______

Answers

Answer:

I)3 II)4x

Step-by-step explanation:

for the infinite number of solutions you need to make both equations on both sides equal

but in the one for no solution you need to make one number is equal to another number, which is wrong in Math, that's why there's no solution in it

Read the excerpt from an interview with Florence Griffith-Joyner.

WILL: I know that you dropped out of college in 1979 to help support your family. It seems like family must be very important to you.

FLORENCE GRIFFITH-JOYNER: Yes. Family is first in my life. It was a very difficult decision for me to drop out of college at that time. Growing up in poverty, I didn't have the financial support that I would have needed to go to college. I wasn't offered an athletic scholarship. I wasn't offered an academic scholarship. I thought, "How am I going to stay in school?" So I enrolled in school, and I thought, "I really want to run, but I know I have to concentrate on my academics as well." I tried a year of college, and I thought, "I can't continue because I have no financial support." I had to take the bus two hours to school, two hours back. The need was greater than what I could afford.

What is the purpose of the interviewer’s question?

A. to share Florence Griffith-Joyner's training techniques
B. to share Florence Griffith-Joyner's family recipes
C. to share Florence Griffith-Joyner's commitment to family
D. to share Florence Griffith-Joyner's favorite coach

Answers

Answer:

C is the obvious answer.

Step-by-step explanation:

She states in the text that family means everything to her

Answer:

Step-by-step explanation:

I got it right on edge

Christopher put 12 gallons of gas in her car. She uses one gallon for every 20 miles he drives.

a. Write an equation to represent the total amount of gas left in his car based upon how many miles she has driven.
b. Find the slope and y-intercept.

Answers

Answer:

Equation: y=(-1/20)x+12.

Slope: -1/20

Y-intercept: (0, 12)

Step-by-step explanation:

Let x=the number of gallons of gas in Christopher's car.

If we start with 12 gallons, we have the equation: y=(-1/20)x+12.

This equation is already in slope intercept form, so we see that the slope is -1/20, and the y-intercept is (0, 12).

Let me know if this helps!

I need help fast plz!!
The question is below
U have to write the linear equations

Answers

Answer:

y=4x-5

y=5x+3

y=-2x-8

y=2/3x+2

y= -3/4x-2

y=1/4x+7

y= -3x+2/3

y=2/3x+10

y= -2x-1/2

y= -3/4x-3

Step-by-step explanation:

Slope intercept formula is as follows

y= mx+b where x is the slope and b is the y intercept

We can just plug in the values given and easily write our equations

Can anyone help please?

Answers

Answer:

y=3x-4

Step-by-step explanation:

yo im doing the same thing. To find the slope , All you need to do is to calculate the difference in the y coordinates of the 2 points and divide that by the difference of the x coordinates of the points(rise over run). That will give you the slope. If you want me to tell you the answer i can :)

Which ordered pair could be added to the relation below to ensure it continues to be a function?

Answers

Answer:

I think that the answer would be (-7,-1) but i'm not that sure

Step-by-step explanation:

Mrs. Irons places the names of each of her four children in a hat at one time. She randomly draws a name, places it back in the hat, and draws again. The results are shown in the table below.

If the experiment was repeated 1,000 times then how many times could you expect to pull Ella's name?

Answers

Just do 1000 divided four 250

Answer:

250

Step-by-step explanation:

1/4 of 1,000 is 250.

Solve for x: 3(x-4)=12

Answers

the answer would be x=8

first, do distributive property. 3 • x and 3 • -4. Now you get 3x-12=12. Now add 12 to both sides. Now you have 3x=24. Now divide by 3 to get your x alone and you answer which is 8!

(7th-grade math: word problems: algebra)
The price to mail a letter at the post office is $0.55 for the first ounce and $0.32 for each additional ounce. Barbara paid $2.47 to mail her letter. How much did the letter weigh?

Answers

Answer:

2.83 pounds???

Step-by-step explanation:

I just added 0.55+0.32 and divided by 2.47 :)))

PLS HELP ASAP GIVE BRAINLIEST TO PERSON WHO ANSWER CORRECTLY

Answers

Answer:

I think you should do B and E

Step-by-step explanation:

None

Answer:

Step-by-step explanation:

first to answer gets brainliest
no dum answers. if the pic isn't showing up then just comment it instead of using it as an excuse for my points.

Answers

555 is the answer to your problem

OMG PLSSSS HELP ITS DUE RN
PLSSSS OMG

Answers

Answer:

THE THREE ANSWERS THAT ARE MISSING ARE GOING TO BE THE SAME AS THE THREE ANSWERS THAT ARE THERE, BUT MAKE THEM POSITIVE.

(1,40) (2,60) (3,120)

Step-by-step explanation:

I HOPE THIS HELPS!!

(1,40) (2,60) 3,120) you basically multiply by 4 hope this helps

Please help this is worth 15 points!

Answers

Answer:

Step-by-step explanation:

Please help. But please help

Answers

Answer:

Step-by-step explanation:

-2(4)/2 + 4

-2 * 4 = -8

-8/2 = -4

4 - 4 = 0

Answer: 0

Explanation:
-2(4)= -8
-8/2= -4
-4 + 4= 0

what is the answer in the picture below i need help

Answers

Heyy this is a super easy problem, and I’m here to help!
Based off our problem here we have a trapezoid. And we are finding AREA. The formula for area of a trapezoid is 1/2h(base 1 + base 2).
Our bases in this problem are 60.5 and 75.5. We are going to addd these together and we’re going to get, 136.
Now, we must multiply 136, by its height(16). 136 x 16 = 2176.
Lastly we are going to divide by 2 and get our final answer of 1088 feet cubed.

PLZ HELP ASAP IT IS TIMED

Answers

Answer:

The first one

Step-by-step explanation:

Answer:

A 0,3 and 3,0................

I am so confused this doesn't make any sense

Answers

Answer:

1 3/4

Step-by-step explanation:

The length shown is the diameter.

The radius is half of the diameter.

so 3 1/2 divided by 2

Please help me i will give brainliest

Answers

Answer:

There will be an estimated amount of 1125 faulty souvenir tokens.

Step-by-step explanation:

Hi!

So, let's do this problem out.

So we for every 400 tokens, 3 are faulty

Let's write that in a ratio

3:400

Ok, great!

So, now we know that:

3:400 = x:150,000

We can set up a percent proportion

[tex]\frac{3}{400} =\frac{x}{150,000}[/tex]

To find x, we do:

[tex]x=\frac{3*150,000}{400}[/tex]

[tex]x=\frac{450,000}{400}[/tex]

[tex]x=\frac{4,500}{4}[/tex]

[tex]x=1125[/tex]

There will be an estimated amount of 1125 faulty souvenir tokens.

Let me know if you have any questions.

which equation represents the situation?
correct=brainliest

Answers

Answer:

k=m+4

Step-by-step explanation:

Answer: K=m+4

Explanation: You take mikes age (10) and Kellies age (14). Take mikes age and add 4 to that on all of his ages. It equals to all of kellies ages. Therefore Kellies age is equal to mikes age plus 4. Did that help?

Pleaaaaaasssseeeeee help me with this you

Answers

Answer:

80cm²

Step-by-step explanation:

The formula of a paralleagram is bxh

So all you have to do is 5 x 16 to get 80

I hope this helps :)

Answer:

i think is a 80cm

Step-by-step explanation:

Opposite sides are equal in length and opposite angles are equal in measure. To find the area of a parallelogram, multiply the base by the height. The formula is: A = B * H where B is the base, H is the height, and * means multiply.

Original price: $60; markup: 15%

Answers

With the markup the price would be $40

I think that it would be 51 dollars

Which angles appear to be congruent?
Please help me!

Answers

Ik that it isn’t one I think it is three and Ik it is the last one I think that is that right one

help I don't know this
outside: its time to do my homework its time to be productive
in my head: We did not learn thissss.

Answers

Answer:

Step-by-step explanation:

It has to be B I mean it makes a lot of sense how is this is hard

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