Mathematics Middle School

There is one answer :v

Answers

Answer 1

The answer is going to be C:80

Related Questions

Trick question what is 1+(6+8)×3? Did you get it correct?
(A) 25
(B) 24
(C) 23
(D) 10

The answer is...

Guess! lol

Answers

6+8= 14+1=15 times 3 shouldnt it be45?

find the lmc of 10 and 15

Answers

Answer: If you mean LCM, the LCM of 10 and 15 would be 30.

Step-by-step explanation:

The LCM of two non-zero integers, x(10) and y(15), is the smallest positive integer m(30) that is divisible by both x(10) and y(15) without any remainder.

pizza is the best yah hopefully this helps

What is the surface area?

Answers

Answer:

the second option

Step-by-step explanation:

I hope this helps you!

Answer:

Step-by-step explanation:

It is indeed the second option i took the exact exam =)

Need answer by today

Answers

Answer:

980 feet per minute

Step-by-step explanation:

980ft per minute hope this helps you!

could someone help me?

Answers

Answer:

There are 55 large boxes

and 70 small boxes.

Step-by-step explanation:

Let's assume that the number of large boxes is x, and the number of small boxes is y. We then can use how many pounds each box weighs to form a system of equations.

System:

$50x+25y=4500\\x+y=125$

Step 1: Solve for a variable

$x+y=125$ is also $y=-x+125$

Step 2: Substitute

$50x+25(-x+125)=4500$

Step 3: Simplify

$50x+-25x+3125=4500\\25x=1375\\x=55$

Step 4: Solve for y

$y=-55+125\\y=70$

The answer would have to be 55 small and 55 large there is no other explanation

-3 + 6x. Which expression shows the correct factorization?
Here are the ones to pick from
1. -2 + -2 +6 +x
2. 6(-2 +x)
3. 6(-2 +x)
4. -3 (1 - 2x)

Answers

Answer:

Option #4

Step-by-step explanation:

Expand option #4

=-3(1-2x)

=-3 -2x*-3

=-3+6x which is what your original equation was.

becoz it is a multiple choice, we can go by elimination, hence when we expand #4, we will get -3+6x

Which number sentence is true?

Answers

Change your answer to b, the square root of 32 is 6 which is more than 4.8

B, the square root of 32 is like 5.6, which is heater than 4.8

Elena bought 8 tokens for $4.40. At this rate, how much do 19 tokens cost?

Answers

Answer:

10.45$

Step-by-step explanation:

Set up a proportion:

8 tokens/4.4$=19/x$

cross multiply to get:

8x=83.6

simplify

x=10.45$

hope this helps!

also could I please know what grade this question is for? ty

Answer:$10.49

Step-by-step explanation:

1) Divide $4.40 by 8 to see how much 1 token costs.(which is equal to $0.55)

2) Once you know how much each token costs, then multiply by 19 to get how much 19 tokens costs. (which is $10.45)

Q.2 - The graph shows the number of paintballs a machine launches, y, in x seconds:

Which expression can be used to calculate the rate per second at which the machine launches the balls?

Answers

Answer:

Step-by-step explanation:

the answer is c hope this help norc3:

1. Explain what the food chain is. Give an example of each level of the food chain.

2. Which trophic level receives the most energy captured by plants?

3. By eating higher up the trophic level, what are humans contributing to?

4. What happens to most of the energy that enters the tropic level?

5. What percent of energy from one tropic level gets passed to another? Explain.

Answers

SORRY my answer got deleted somehow, but. A food chain refers to a sequence of organisms arranged according to the food they consume. The second part of the first question is Producers, consumers, predators, prey, scavengers, and decomposers. i hope this helped i cant answer all of them for you :D

question : ill mark brainlist

3. The ______ projection shows the size and shape of continents accurately but distorts water areas.

A. Conic

B. Mercator

C. Robinson

D. Interrupted

Answers

The correct answer is A. Conic projection.

A conic projection is a type of map projection created by projecting the surface of a globe onto a cone. The cone is then unrolled and flattened to create a two-dimensional map. Conic projections are best for mapping small areas, such as individual countries or states. They are also good for mapping areas that are located near the equator.

Conic projections show the size and shape of continents accurately, but they distort water areas. This is because the cone is tangent to the globe at one point, and the further away from that point you get, the more distortion there is.

Mercator projection is a cylindrical map projection presented by Flemish geographer and cartographer Gerardus Mercator in 1569. It became the standard map projection for navigation because it is unique in representing north as up and south as down everywhere while preserving local directions and shapes. The map is thereby conformal. As a side effect, the Mercator projection inflates the size of objects away from the equator. This inflation is very small near the equator but accelerates with increasing latitude to become infinite at the poles.

Robinson projection is a map projection presented by American cartographer Arthur H. Robinson in 1963. It is a compromise projection that attempts to balance the distortions of area, shape, and distance. The Robinson projection is neither conformal nor equal-area, but it is pseudocylindrical, which means that the meridians are straight lines and the parallels are circles.

Interrupted projection is a type of map projection that is interrupted at regular intervals. This is done to reduce the distortion of the map. The most common type of interrupted projection is the Mercator projection, which is interrupted at the equator and the prime meridian

The answer is B mercator hope it helps :)

Use r = 2 and r = 5 to determine if the two expressions are equivalent.

r + 4(2 + r) – 12 8 + 2r – 6

Complete the statements.

When r = 2, the first expression is
.
When r = 2, the second expression is 6.

When r = 5, the first expression is 21.

When r = 5, the second expression is
.
The expressions are not equivalent.

Answers

When r = 2, the 1st expression is 24
When r =5 the 2nd is 12

Denise went to the grocery store and purchased 2 candy bars for $0.65 a piece and 3 sodas for $1.25. How much did she pay in total?

Answers

Answer:

Denise has to pay $5.05 for the candy bars and the sodes

Step-by-step explanation:

1.25*3= 3.75

0.65+0.65=1.30

Denise paid $5.05 in total
Step-by-step explanation

$0.65 + $0.65 =$1.30
$1.25+$1.25+$1.25 =&3.75
$3.75+$1.30=$5.05

Write an en expression that could be used to find the amount Samantha earns working any number of months, m.

Answers

Answer:

3m • 462.30 = 1,386.90

Step-by-step explanation:

Let's use the example of 3 months. So, working one month Samantha earns $462.30. Let's say she works part-time for 3 months.

Multiply. 462.30 • 3 = $1,386.9

That means working 3 months, Samantha earns $1,386.90.

Then, just write it in standard form.

3m • 462.30 = 1,386.90

462.30m=t
(t represents total)
you could use any variable to represent the total amount. since they are asking for any number of months allowing m to represent the unknown number of months is imperative!

PLS HELP WILL GIVE BRANLIEST: The angle measurements in the diagram are represented by the following expressions. ∠A=5x-5 ∠B=3x+13
solve for x then find the measurement for ∠B

Answers

Answer: x = 9

Angle B = 40

Step-by-step explanation:

5x-5 = 3x+13 Those angles are the same, they are corresponding angles

5x = 3x + 18 Solve the equation

2x = 18

x = 9

3(9)+13 Solve it

Angle B = 40

Hope this helps.

I think the answer is x=9 and angle B=40

Which graph shows only a direct variation between X and y?

Answers

Answer:

Step-by-step explanation:

Direct variation graphs always intersect the origin. Therefore, graph A is accurate.

What is the volume of the box if it is scaled down by a factor of 1/10?
V= 308 35/64

Answers

Answer:

explanation will answer.

Step-by-step explanation:

To convert this fraction to a decimal, just divide the numerator (35) by the denominator (64). So, 35 / 64 = 35 ÷ 64 = 0.546875. Approximated Values: 35 / 64 = 0.5 rounded to 1 significant figure. 35 / 64 = 0.55 rounded to 2 significant figures. 35 / 64 = 0.547 rounded to 3 significant figures.

Answer:

Step-by-step explanation:

Simplify −4r(−11r + 2r − 14).

−36r2 + 56r
−36r2 − 56r
36r2 + 56
36r2 + 56r

Answers

Answer:

-4r(-11r + 2r - 14)

Multiply -4 with all the terms inside the parenthesis

-4r*-11r = 44r^2

-4r*2r = -8r^2

-4r*-14 = 56r

Combine

44r^2 - 8r^2 + 56r

36r^2 + 56r

Is the thirdd one I did it twice to check and it the third one

please help me i will give brainliest to first person to anwser.

Answers

A. 1607.7

First we start with the formula for cylinders v=(pi)r(squared)h filled in Thats v=(3.14)(8 squared) (8) which brings us to the answer 1607.68 but you must round to the nearest tenth aka 1607.7

Answer:

The first option, V ≈ 1607.7 in²

Step-by-step explanation:

Find the volume of the given cylinder.

$\begin{center}\framebox{\parbox{4cm}{\textbf{Volume of a Cylinder:}\\[2ex]The volume of a cylinder with radius $r$ and height $h$ is given by the formula:\\[2ex]\center{$V = \pi r^2 h$} \\ \\}}\end{center}$

Given:

r = 8 in

h = 8 in

π = 3.14

Find:

V = ?? in³

$\hrulefill$

Now solving,

Substitute the given values into the formula:

=> V = (3.14)(8)²(8)

Using a calculator to simplify:

=> V = 1607.68 in²

Rounded to the nearest tenth:

∴ V ≈ 1607.7 in²

Thus, the first option is correct.

Directions: Write a Plus (+) or a minus (-) sign in the blank to make the number sentence true. The first one is done for you.

1) + 19 - 21 = -2 (a positive 19 combined with a negative 21 = -2)

2) - 20 _ -2 = -22

3) 29 _ -13 = 16

4) -16 _ -17 = -33

5) -19 _ 3 = -22

6) 98 _ -2 = 100

7) -112 _ -13 = -125

8) 111 _ -1 = 110

9) -72 _ 8 = -64

10) 80 _ -6 = 86

11) 99 _ -2 = 97

12) 13 _ -1 = 14

Answers

Answer:

2. -

3. +

4. +

5. -

6. -

7. +

8. +

9. +

Step-by-step explanation:

Please mark as brainliest

Also, the explanation:

This is very easy if you understand the concept.

Taking a negative number away from a larger positive number, will not result in a negative number

This is the opposite for smaller numbers.

2.-
3.+
4.+
5.-
6.-
7.+
8.+
9.+

100 points and brainliest if answered quickly!!!! Nick is investigating cell phone use in his hometown. So far, he has found that the residents used their cell phones for 217,470 minutes last year. This year, they used their cell phones for a total of 434,940 minutes. What is the percent of increase in annual usage?

Answers

To calculate the percent increase in annual usage of cell phones, we can use the following formula:

Percent increase = [(new value - original value) / original value] x 100

where the new value is the current year’s usage and the original value is last year’s usage.

In this case, Nick found that residents used their cell phones for 217,470 minutes last year and 434,940 minutes this year. So we can plug these values into the formula:

Percent increase = [(434940 - 217470) / 217470] x 100

Percent increase = 100%

Therefore, there was a 100% increase in annual usage of cell phones.

I hope that helps! Let me know if you have any other questions.

Answer:

6670 divided by 2=3335 SOOOO the answer is :3335

Step-by-step explanation:

If they used 50 percent of their phone time, they're using half of it. Therefore, 1/2 of 6670 is 3335. YW

Please help i’ll give brainliest!

For which set of data are the median and mode the same number?

A. 4, 5, 7, 7, 8, 10
B. 3, 5, 6, 8, 8, 9
C. 5, 5, 6, 8, 9, 10
D. 4, 5, 7, 8, 9, 9

Answers

Answer: A

Step-by-step explanation:

median: 7+7=14

14/2=7✅

mode: 7 shows up the most (twice)

I will have to say as I the first person that is on top of my comment the answer is A

please hurry nd answer 15 pnts

Answers

First three are social the last three are physical

Nick walked ¾ of a mile in 12 minutes. At the same pace, how far could he walk in 48 minutes?

Answers

Answer:

he could walk 3 miles in 48 minutes

Step-by-step explanation:

to find how many miles he walked in 48 minutes we have to divide 48 by 12 to figure out how many times bigger is 48 then twelve and we get 4 and then we multiply 3/4 by 4 and we get three.

4 ...............................

A bag has 8 red marbles, 4 green marbles, and 2 yellow marbles. Bill draws a red marble from the bag and does not replace it. What is the probability of Bill drawing a yellow marble next? A. 1/7 B. 1/13 C. 2/13 D. 1/14

Answers

I think the probability of Bill drawing a yellow marble is 2/13.

Answer:

c. 2/13

Step-by-step explanation:

The bag starts with 8 red marbles, 4 green marbles, and 2 yellow marbles. Since he draws a red marble from the bag and does not replace it, there will be one less marble.

So now there are 7 red marbles, 4 green marbles, and 2 yellow marbles. Add the number of marbles together and then find the probability of drawing a yellow marble.

7+4+2 = 13

2/13

So the probability of Bill drawing a yellow marble would be 2/13.

how would you draw a rectangular prism 2 units long and 2 units wide and a height of 3 units??

Answers

Answer:

It should look like the attachment below.

Hope this helped!

A group of 24 students spent 1,296 minutes studying for an upcoming test. What prediction can you make about the time it will take 150 students to study for the test?

It will take them 174 minutes.
It will take them 2,592 minutes.
It will take them 8,100 minutes.
It will take them 8,745 minutes.

Answers

Answer:

It will take them 8,100 minutes.

Step-by-step explanation:

If it takes a group of 24 students 1,296 minutes to study for an upcoming test, it takes 54 minutes for each student. (=> 1,296/24 = 54)

150 x 54 minutes = 8,100 minutes.

It will take them 8,100 minutes.

8,100 Minutes just had the same question

WILL CHOOSE BRAINLIEST!!! A is (2,2). A' is (-1,-1). Which sequence of transformations best describes this transformation?
A. Reflection across the x-axis, dilation using k-1/2
B. Rotation 80°, dilation using k=1/2

Answers

Answer:

Step-by-step explanation:

WILL CHOOSE BRAINLIEST!!! A is (2,2). A' is (-1,-1). Which sequence of transformations best describes

The answer is A. Hope this helps :)

Which three of the following statements are correct according to the diagram?

Answers

the awnser is A. B. and C.

D. is a ray and only has one end point

B. and C. are using a line segment symbol, which means they have no end point.

and A. seems to be the correct awnser. It has a line which has 2 end points, and the || means parallel. but if they need 3 it would be A. B. and C.

The answers are a, b and C

Have a good day

Dani experimented with a dollar bill and the copy machine a dollar bills length is 6.1 inches and width is 2.6 inches, she reduced the dollar bill so its length was 80% of its original size. Dani then reduced the copy of the dollar bill a second time by making at 15% smaller than the copy, what is the new length of the second copy?

Answers

6.1inches * 80% = 4.88inches
100% - 15% = 85%
4.88 inches * 85% = 4.148inches

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