Mathematics Middle School

PLEASEEE!!!!!!! HELPPPPP!!!!!!!!

What is the value of x in the equation 7.5 = x + 2.25?
A. 9.75
B. 4.75
C. 7.25
D. 5.25

PLEASE HELP!!!!!
IL GIVE BRAINLIEST!!!!!!!!

Answers

Answer 1

Answer:

D. 5.25

Step-by-step explanation:

Related Questions

PLEASE HELP MEEE! DON'JOKING PLEASEEE!

Answers

Answer:

24 Cats.

Step-by-step explanation:

You can set up an inequality of 21/18 and 28/x.

Multiply 18 and 28, you get 504. Divide 504 by 21 and you get your answer of 24.

25 cats because if you see the difference between cats and dogs it is 3 keeping the same ratio would mean subtract 3 from 28 therefore the answer is 25

pls answer question n picture.

Answers

Answer:

Step-by-Step Equation:

Answer:

8b^2 + 9b + 3y +5

Step-by-step explanation:

7b + 8b^2 + 3 + y + 2b + 2y + 2

8b^2 + 9b + 3 + y + 2y + 2

8b^2 + 9b + 3y + 3 + 2

= 8b^2 + 9b + 3y +5

NOTE:

the symbol '^' represents 'to the power of', so 8b^2 would be 8b to the power of 2.

The sixth graders at Amir’s school voted for the location of their class trip. 35% of the students voted to go to the art museum. If 126 students voted for going to the art museum, how many sixth graders are at Amir’s school?

Answers

Answer:

360

Step-by-step explanation:

126/35%=360

Answer:

Step-by-step explanation:

 

i need this answered asap pls i wan na finish this today

Answers

Answer:

I think A.

Step-by-step explanation:

Max correctly solved this inequality.

StartFraction a over negative 5 EndFraction greater-than-or-equal-to 10. a less-than-or-equal-to negative 50.

Which graph matches the inequality?
A number line going from negative 55 to negative 45. An open circle is at negative 50. Everything to the left of the line is shaded.
A number line going from negative 55 to negative 45. A closed circle is at negative 50. Everything to the left of the line is shaded.
A number line going from negative 55 to negative 45. An open circle is at negative 50. Everything to the right of the line is shaded.
A number line going from negative 55 to negative 45. A closed circle is at negative 50. Everything to the right of the line is shaded.

Answers

Answer:

Answer:

See the graph attached. The red arrow represents the shaded area.

Explanation:

The inequality and its solution are given:

     

The solution set is all real numbers less than or equal to -50.

In a number line, the values less than -50 are all the values that are to the left of -50. Thus, the graph of a ≤ -50 must include -50 and the region to the left of it.

To indicate that - 50 is included, draw a solid point; then, shade the region since it to its left.

Please, see the graph attached. The red arrow represents the shaded area.

Step-by-step explanation:

Answer:

The filled Dot on 50 arrow pointing to the left

Step-by-step explanation:

im srry if wrong

5 points..! plus brainliest..!

Answers

Answer:

4th one

Step-by-step explanation:

Answer:

Last answer.

Step-by-step explanation:

MATH PLEASE HELP WHATS X AND Y IN THESE EQUATIONS 20 POINTS

Answers

use photomath it helps a lot

Answer:

[tex]Point Form:(-5,-5)\\Equation Form:x=-5,y=-5[/tex]

Hope this helps :)

-ilovejiminssi ♡

Pls help I don't wanna get a bad grade make sure you show your work plz

Answers

Answer:

the first one

Step-by-step explanation:

1. 1310 x 0.15 = 196.5

2. 1310 - 196.5 = 1113.5

3. 1113.5 - 310 = 803.5

4. 803.5 - 405 = 398.5

5. 398.5 divided by 2 = 199.25

Answer:797

Step-by-step explanation:the last one

(SUBMITTING TODAY!!) Desi has a coupon that entitles him to 35% off the regular price of a sweater. The original price of the sweater he would like to buy can be represented as x , so Desi says that the price he will pay is (1−0.35)x . Write another expression that represents the price Desi will pay.

Answers

Answer:

x*0.35

Step-by-step explanation:

You would do x as the price as the sweater and then multiply it by 35% or 0.35.

The Awnser would be x*0.35

PLS HELPPPP I WILL BE GIVING BRAINLESS THE PIC IS RIGHT BELOW PLS IF U DONT KNOW THE ANSWER DONT ANSWER PLSSS

Answers

Answer:

The answer is 132

Step-by-step explanation:

First, find the area wholely, 20x8 = 160. Then find the triangle which is 7x 8 divided by 2 is 28 and you subtract the whole are by the triangle which is 160 - 28 is 132

plsss hurry!!!! i rlly need help

Answers

Answer:

41 21/25

Step-by-step explanation:

38 1/25 + 3 4/5 = 41 21/25

67.5 billion in scientific notation

Answers

Answer:

6.75 × 10^10

Step-by-step explanation:

HElp pls for majior brainlest and points

Answers

Answer:

i think its 4-3r=1.

Step-by-step explanation:

i hope i got it right so you can make some a's

Answer:

4 -3r (B)

w (A)

3 (A)

8 (B)

2 (B)

Explanation:

Expression = (Number, Math Operator, Number)

The graphs below show the increases and decreases in a company's monthly closing stock values.
If you were the owner of this company which graph would you use to show growth since March? Be sure to justify your answer with mathematical reasoning.

Answers

Answer: graph A

Step-by-step explanation:

you can see it is going up look at march then look past that to the right is it going up or down the answer is it is going up so your answer: Graph A

Answer:

Graph A

Step-by-step explanation:

I just did this on edge and got it right hope it helps and please mark me as brainliest

what is the mean absolute deviation of the data set below?
3,1,4,4,4,1,1,2,1,5

Answers

Answer:

1.4

Step-by-step explanation:

Step 1: We have to find the mean of the data set

The mean is the average or the sum of all the numbers divided by the amount of numbers there are.

3 + 1 + 4 + 4 + 4 + 1 + 1 + 2 + 1 + 5 = 26

There are 10 numbers in total so, 26/10 = 2.6

Step 2: We now know the mean so now we have to find the deviation

3 - 2.6, |1 - 2.6|, 4 - 2.6, 4 - 2.6... so on, (Note: this is just finding the distance between the numbers and the mean)

The results are, 0.4 + 1.6 + 1.4 + 1.4 + 1.4 + 1.6 + 1.6 + 0.6 + 1.6 + 2.4

This is equal to 14

Step 3: Lastly, we have to find the mean of the deviations

We know the mean is 14

We have 10 numbers

Therefore, 14/10 = 1.4 is the MAD

1/4 is the answer I think

2 horses ran from the same place from the at same time one horse ran at 2 miles per second and the other ran at a speed for 18 miles per second. how far apart were they in 1 minute? in 5 minutes? in 8 minutes?

- PLS HELP ASAP!!!!!

Answers

Answer:

1 minute = 1080 - 960 = 120 m

5 minutes = 5400 - 4800 = 600 m

8 minutes = 8640 - 7680 = 960 m

Step-by-step explanation:

I think the easiest way is to just see how far they get at each time.  So I'm going to go one horse at a time.

16 m/s

1 minute = 60 seconds, every second is 16 meters so 16 m/s * 60 s = 960 m

5 minutes = 300 seconds so 16 m/s * 300 s = 4800 m

8 minutes = 480 seconds, 16 m/s * 480 s = 7680 m

I also want to point out that unites cancel out.  m/s * s is kinda like variables so the seconds being multiplied by m/s cancels witht eh seconds in the denominator.

Now the next horse

18 m/s

1 minute totals to 1080 m

5 minutes = 5400 m

8 minutes = 8640 m

Now we take the differences of each time

1 minute = 1080 - 960 = 120 m

5 minutes = 5400 - 4800 = 600 m

8 minutes = 8640 - 7680 = 960 m

Another way to do this is to take the difference of speed and then multiply that by the time.  so 18-16 = 2, then multiply each time by 2.  For me it just makes more intuitive sense the way I showed.  

plz help this is proportions math

Answers

Answer:

I would recommend using photo math its faster and easier I promise!! ;)

I think 42 is the anwser

A store is giving out cards labeled 1 through 10 when customers enter the store. If the card is an even​ number, you get a 15​% discount on your purchase that day. If the card is an odd number greater than​ 6, you get a 40​% discount.​ Otherwise, you get a 25​% discount. The table shows the results of 400 customers. What is the relative frequency for each​ discount? Use pencil and paper. If the manager of the store wants approximately half of the customers to receive the 25​% ​discount, does this seem like an appropriate​ method?

Answers

Answer:

The answer would be A. 1 1/5

48/40 = 1 8/40

1 8/40 Simplify to 1 1/5

Step-by-step explanation:

If the store wants to give approximately half of the customers a 25% discount. They may need to adjust the discount criteria or randomly assign cards to customers to achieve the desired frequency.

What is the relative frequency?

The ratio of the number of outcomes in which a specified event occurs to the total number of trials, not in a theoretical sample space, but in an actual experiment, is the relative frequency or experimental probability of an event.

To determine the relative frequency for each discount, we need to count the number of customers who received each type of discount and divide by the total number of customers.

Let's create a table to organize the data:

Discount                  Card Label                Number of Customers

15%                            Even                             120

40%                            Odd > 6                     30

25%                           Other                            250

Total                                                     400

The relative frequency for each discount is given by:

Relative frequency of 15% discount: 120/400 = 0.3 or 30%

Relative frequency of 40% discount: 30/400 = 0.075 or 7.5%

Relative frequency of 25% discount: 250/400 = 0.625 or 62.5%

To determine whether this discount method is appropriate to give approximately half of the customers a 25% discount, we need to compare the observed frequency of the 25% discount with the desired frequency.

Half of the 400 customers is 200. If we want approximately half of the customers to receive the 25% discount, then the observed frequency of the 25% discount should be close to 200.

However, we see that the observed frequency of the 25% discount is 250, which is higher than the desired frequency.

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hi please help me lol i have no idea what this is

Answers

Answer:

coefficient: 7; constant: 2

Step-by-step explanation:

In a polynomial, a coefficient is a number that multiplies a variable.

The coefficient is 7.

A constant is a number by itself.

The constant is 2.

please hurry nd answer 15 pnts

Answers

First three are social the last three are physical

A jar contains 100 coins. If it is very unlikely that you will randomly choose a quarter out of the jar, how many quarters could be in the jar?

10
85
50
35

Answers

Answer:

10

Step-by-step explanation:

As the question says it is very unlikely, 10 must be correct, the other numbers are way higher

Answer:

its 10

Step-by-step explanation:

hope it helped mate it was the answer to mine :D

Please answer the question in the PNG below.

Answers

Answer:

3x+6-15+5x

Step-by-step explanation:

PLZ HELP WILL MARK BRAINLIEST(and please explain in detail I have to record myself explaining)
A chairlift starts 0.5 mi above the base of a mountain and travels up the mountain at a constant speed of 6 mph and it takes 15 minutes to get to the top. How far from the base of the mountain is the chairlift at 10 minutes?

Answers

d=1.5 miles i’m pretty sure

help me plzzzz neeed help asap

Answers

The first one I think. I did the mathematics and that’s what I got hope it helps

Answer:

It is answer d)

Step-by-step explanation:

2(a+2b)-a-2b

2a+4b-a-2b

a+2b

Therefore d is the correct answer

What is the volume of a cube with an edge length of 3/4 inch?

Answers

Answer:

V=a cubed

Step-by-step explanation:

Answer:

v=a3

Step-by-step explanation:

Simplify the following expression by combining like terms. please help me thank you!

Answers

Answer:

8x-3

Step-by-step explanation:

Combine like terms.

11x-3x=8x

(8x)

14-11=3

(8x-3)

Hope it helped!

What is give an example of a unit rate used in a real world situation? Plz I'm literally so confused lol.

Answers

Answer:

Miles per hour. (mph)

Step-by-step explanation:

This can be used in almost everyday, since most people today drive around in cars, and use mph to see how fast they are going per hour.

#teamtrees #WAP (Water And Plant)

Answer:

20 miles per hour

Step-by-step explanation:

An example would be like 50 beats per minute, or 20 miles an hour.

When rates are expressed as a quantity of 1.

Christopher said, “I put these in order.”
-2.3, 4.75, -8.2, 12, -14.25
Beth disagrees with Christopher. She knows he is wrong. Write a statement the Beth might say to show Christopher his mistake?

Answers

Answer:

-14.25, -8. 2 karma -2.3, 4.75

Beth might say to Christopher “you have you put the negatives before the positives”

PLEASE HELP WITH MY MATH LIKE ASAP

Answers

Answer:

use elimination, (4,3)

Step-by-step explanation:

3x-2y=6

-

3x+y=15

-3y=-9

3y=9

y=3

3x+3=15

15-3=12

12=3x

12/3=4

x=4

Answer:

eopqnvpqvneqjverqjvrjsacn

Step-by-step explanation:

Estimate the sum: 1 3/7 + 3 5/9 + 1/2. Show your work.

Answers

Answer:

The correct answer is 5 61/126!

Step-by-step explanation:

Leave a fraction alone

1 3/7

Find the Addend

9x3=27+5=32 = 32/9

Find the sum and simplify

1 3/7 + 32/9 = 691/126 = 5 61/126

To estimate the sum of the given terms: 13/7, 35/9, and 1/2, we can convert each term to a decimal number and then add them together. First, let's convert 13/7 to a decimal.

To do this, we divide [tex]13 by 7: 13 ÷ 7 = 1.857[/tex] Next, let's convert 35/9 to a decimal. Dividing 35 by 9 gives us: [tex]35 ÷ 9 = 3.889[/tex]  Finally, we convert 1/2 to a decimal by dividing 1 by 2:[tex]1 ÷ 2 = 0.5[/tex] Now that we have converted all the terms to decimals, we can add them together: [tex]1.857 + 3.889 + 0.5 = 6.246[/tex]

Therefore, the estimate of the sum of the given terms is 6.246. It's important to note that this is an estimate because we rounded the decimal values. If you need a more precise answer, you can use a calculator or longer division to get more decimal places. However, for most practical purposes, this estimate should suffice.

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