Mathematics Middle School

ill give brainiest to whom ever gets this correct

Answers

Answer 1

Answer:

C. 36.

Step-by-step explanation:

Answer 2

Answer:

36 in. i think

Step-by-step explanation:

Related Questions

The trip from Carville to Planesborough takes 4 1/2 hours when traveling at a constant speed of 70 miles per hour. How long, in hours, does the trip take when traveling at a constant speed of 60 miles per hour?

Answers

Answer:

5h 15 min

Step-by-step explanation:

70 mph * 4,5 = 315 miles

315 / 60 = 5,25h

5,25h = 5 1/4h = 5h 15 min

Answer:

6.8

Step-by-step explanation:

i hope tis helps

In a video game, a guppy that escapes a net turns into three goldfish. Each goldfish can turn into two betta fish. Each betta fish can turn into two angelfish. Enter and evaluate an expression for the number of angelfish that can be formed from one guppy.

What is an expression?

Answers

an expression is an equation without an equal sign

for example:

equation- 2+2=4

expression- 2+2

How do i find a mean in a data set?

Answers

Answer:

Add them all up then divided by how many numbers there are

Step-by-step explanation: :)

Answer:

How do you find the mean?

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Step-by-step explanation:

Which expression is equivalent to 4( x + 3)?

Answers

Answer:

Step-by-step explanation:

use distributive property

4*x + 4*3 = 4x+12

Answer:

4x + 12

Step-by-step explanation:

If you distribute the 4 by multiplying then its 4 times x so 4x

plus 3 times 4 so 12! Hope this helps ( :

The mass of 1 L of water is 1 kg. The mass of gasoline is 0.68 times the mass of water. What is the mass of the gasoline in a full tank that holds 75 L.

Answers

I’m guessing it would be 51 kg

Hence, the mass of the gasoline in a full tank that holds [tex]75L[/tex] is [tex]680[/tex]grams.

What is the mass?

Mass refers to the quantity of matter in an object. Mass is generally measured by how much something weighs. The more matter something has, the more it will weigh.

Here given that,

The mass of [tex]1[/tex] L of water is [tex]1[/tex] kg. The mass of gasoline is [tex]0.68[/tex] times the mass of water.

As we know,

[tex]1L=1000ml[/tex]

So, [tex]0.68[/tex]×[tex]1000=680grams[/tex]

As per this the mass of water is greater than the mass of gasoline.

Hence, the mass of the gasoline in a full tank that holds [tex]75L[/tex] is [tex]680[/tex]grams.

To know more about the mass

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What is 4 3/10 plus (-6.2) in decimal form

Answers

Answer:

Step-by-step explanation:

First change 4 3/10 to 4.3. Then you change 4.3 + -6.2 to 4.3 - 6.2.

Then you do 4.3 - 6.2 and you should get - 1.9.

Answer:

The answer is (-1.9)

Step-by-step explanation:

4 3/10 = 4 × 10 + 3/10 = 43/10 = 4.3

Now,

4.3 - 6.2 = -1.9

Thus, The answer is (-1.9)

-TheUnknownScientist 72

PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP AND NI FILES

Answers

I hate files that give you viruses, anyways I'm going to do this question.

Though, can you give me more information please?

Answer:

Melinda saves 2 less dollars than Marcus each week.

Step-by-step explanation:

Y = 12x + 75 is Melinda's equation. Y = 14x + 25 is Marcus's equation. First we'll disregard how much money they have saved already to see how much they save weekly. So Melinda's new equation is Y = 12x, and Marcus's new equation is Y = 14x. Now we'll do Marcus's equation (14x) - Melinda's equation (12x) to see how much more money Marcus saves each week, which will in turn will tell us how much less money Melinda saves each week.

14 x - 12x = 2. (x-x=0) This tells us Marcus saves 2 more dollars than Melinda each week.

Which gives us our answer, Melinda saves 2 less dollars than Marcus each week.

Help please. I will be happy!!!!

Answers

Its either the first answer or the second one

Answer:

The answer is 20.

Step-by-step explanation:

5 divided by 1/4

19= X+5*Z-12

what is X and Z?

Answers

Answer:

X = -5Z + 31

Step-by-step explanation:

Subtract 5Z5Z from both sides.

19 - 5Z = X - 12

19 − 5Z = X − 12

2 Add 1212 to both sides.

19 - 5Z + 12= X

19 − 5Z + 12= X

3 Simplify 19-5Z+1219−5Z+12 to -5Z+31−5Z+31.

-5Z + 31 = X

−5Z + 31 = X

4 Switch sides.

X = -5Z + 31

X = −5Z + 31

Answer:

19=x+5*z-12

19+12=x+5*z

31=x+5*z

then x=26 z=1

Malia works at a movie theater and is paid hourly. One month, she earned $263 The total amount she earns can be found using the equation y = 7.5x, where x is the number of hours she works and y is the total amount she earns in dollars.

Bill works at a golf course and is also paid hourly. This table shows the total amount he is paid for different numbers of hours worked.

Who makes more pay per hour?

Answers

Bill makes more per hour, if you divide any set of numbers by the hours, you will get 8.05 dollars per hour

8.05>7.5

Have a good day to

Answer; 35hours+7.5xy= BILL

Linda is comparing the density of materials. The redwood is 2x10^ -2 pounds per cubic unit. The stainless steel is 3 x 10^ -3

Answers

Answer:

Step-by-step explanation:

5x10

A boat went downstream and traveled a distance in 3 hours. the return took 3 hours and 40 min. find the speed of the water current of the speed of the boat in still water is 18

Answers

Answer:

Step-by-step explanation

How much is 1500 sq inches as normal inches? plz hurry

Answers

Answer:

15000 Is the sq in normal inches

square root of 1500 is about 38.7

4 pounds of grapes cost $5. 7 pounds of grapes cost $8.75. What is the cost per pound?

Answers

Answer:

$1.25 per pound

Step-by-step explanation:

$5 ÷ 4 = $1.25

$8.75 ÷ 7 = $1.25

Simplify the expression. Write your answer as a power. (−4)^5⋅(−4)^7

Answers

The Answer is 4^12 or -4^12 I’m not sure

How do you calculate the square root of an given area?

Answers

Answer:

root give a meaning

Step-by-step explanation:

root give a meaning

If you have the area, then multiply it by itself, and there you have the square root! I don’t quite understand the question, if this doesn’t help then can I see a picture of the problem?

How can I improve my skills in math?

Answers

Answer:

You can practice a lot and reliable resources to help get answers.

Step-by-step explanation:

a couple of sites to practice on is IXL, khan academy, and aleks. hope this helps. :)

Answer: pay attention to class

A summer camp cookout is planned for the campers and their families. There is room for 200 people. Each adult costs $4, and each camper costs $3. There is a maximum budget of $750. Write the system of inequalities to represent this real-world scenario, where x is the number of adults and y is the number of campers. x + y ≤ 200 4x + 3y ≤ 750 x + y ≤ 750 4x + 3y ≤ 200 x + y ≤ 200 3x + 4y ≤ 750 x + y ≤ 750 3x + 4y ≤ 200

Answers

Answer:

I think its A

Step-by-step explanation:

The required system of inequalities is x + y ≤ 200 and 4x + 3y ≤ 750. Hence, the first option is the correct choice.

What is inequality?

Inequality is a non-equal relation between two expressions involving variables and constants.

The sign of the inequality can be, less than (<), greater than (>), less than or equal to (≤), or greater than or equal to (≥).

How to solve the question?

In the question, we are asked to write the system of inequalities to represent the given scenario, where x is the number of adults and y is the number of campers.

We are informed that there is a room for 200 people.

Thus, the total number of people, that is, the number of adults + the number of campers, or, x + y should be less than or equal to 200.

This gives us an inequality:

x + y ≤ 200.

We are informed that the cost of an adult is $4 and the cost for a camper is $3, and the total budget is $750.

Thus, the total cost, that is, the cost of all adults + the cost of all campers, or, 4x + 3y should be less than or equal to 750.

This gives us an inequality:

4x + 3y ≤ 750.

Thus, the required system of inequalities is x + y ≤ 200 and 4x + 3y ≤ 750. Hence, the first option is the correct choice.

Learn more about writing inequalities at

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i give brainiest how do i multiply 5/6 x 4/6

Answers

Answer:

Multiply the numinators together then the denominators. Answer 20/36 then simplify. Hope this helps :)

Step-by-step explanation:

OOops, answered the wrong question-

5/6 x 4/6 = 20/36 as simplified as 5/9 in fraction form.

Step 1

Multiply both numerators

= 5 x 4

= 20

step 2

Multiply both denominators

= 6 x 6

= 36

step 3

Use above values of step 2 & 3, and rewrite as below

= 20/36

Four friends purchase a pineapple for $2.89 and 18.4 pounds of peaches. The peaches cost $1.75 per pound. The friends share the total cost equally.

What amount does each person pay?

Answers

Answer: $3.00

Step-by-step explanation:

Answer:

$8.77

Step-by-step explanation:

18.4 pounds x $1.75 = $32.2

After that we add the pineapple cost

$32.2 + $2.89 = $35.09

So now we for the 4 friends

$35.09/4 = $8.77

I need help with this

Answers

Answer: 2.5

Step-by-step explanation: to find the unit rate/slope we need to pick 2 points and subtract the y's and x's

i picked (2, 5) and (1, 2.5)

5 - 2.5 = 2.5

2 - 1 = 1

2.5/1 = 2.5

2.5 is the slope

Answer:

1.25 I think

Step-by-step explanation:

how do I do 6,413-764 show your work, I will give brainliest
(I'm in middle school but i have long term memory and I forget how to do subtraction please help me)

Answers

First you multiply 6 times 413 which is 2478. Then you add -764.

The answer is 1714

Answer:

the answer is 5649

Step-by-step explanation:

Why is taking a census better than taking samples in a survey?

Answers

The census is time consuming while the survey doesn’t take that much time. However, getting more reliable results are better in census than getting them in surveys only cause there could be an error.

evaluate 13+ab,when a= 2.5 and b=3.

Answers

13
+
a
b
=
a
b
+
13
13
+
a
b
=
a
b
+
13
a
=
2.5
=
=
2.5
a
=
2.5
=
=
2.5
b
=
3
=
=
3
b
=
3
=
=
3

Answer= 20.5

Determine the number of solutions in this equation:
5x + 3 - 3x = 2 ( x + 3 ) - 5

Answers

Answer:

No solutions

Step-by-step explanation:

2x+3=2x+6-5

2x+3=2x+1

The two x's cancel out, so you get

3=1

Subtract 3 from each side to get

0=-2

So the answer is no solutions

CANUHELPMEPLAESE PLZ

Answers

Answer:

The answer is 8$ less

Step-by-step explanation:

find 15% of 40 = 6 and 35% of 40 = 14

Subtract 6 from 40 and 14 from 40

get 34 and 26

subtract 26 from 34

taadaa

the answer is 8 dollars less

If the perimeter of a regular pentagon can be expressed as 10s - 20, determine the length of each side.

50 s - 100
5 s - 10
s - 2
2 s - 4
pleaze hurry

Answers

Answer:

50 s - 100

Step-by-step explanation:

Answer:

50 s - 100

Step-by-step explanation:

Can someone answer this for me?

Answers

Answer:

24.75

Step-by-step explanation:

divide 33.00 by 4 and multiply the sum by 3

Answer:

57.75

Step-by-step explanation:

Show Work please and thank you!
Curt and Melanie are mixing blue and yellow
paint to make seafood green paint. Use the
percent equation to find how much yellow paint
they should use.

10% Blue
1.5 quarts (of seafoam green?)
30% Yellow

Answers

they should use 1.1 quarts more of yellow paint. 10% is 0.1 quarts and 30% is 0.3 quarts so yellow and blue combined would be 0.4 quarts. 1.5 quarts is needed, 1.5 - 0.4= 1.1 quarts

10% yellow and 30% Blue green

Write an equation in slope intercept form for the graph of the line.

Answers

Y= 2x + 3 is the answer

Answer:

y = mx + b

Step-by-step explanation:

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