Mathematics Middle School

Match each expression to its value.
1. 7.5
2.
2. 7+5
12
3. 7.5
1-12
4. 7-1-5)
-2

Match Each Expression To Its Value.1. 7.52.2. 7+5123. 7.51-124. 7-1-5)-2

Answers

Answer 1
1) 7-5 = 2
2)-7+ 5 = -2
3) -7-5 = -12
4)7 - (-5) = 12

hope this helps! feel free to mark brainliest
Answer 2

Answer:

1. 7-5 =2

2. -7 + 5 = -2

3.-7 - 5 = -12

4. 7 - (-5) = 12

Step-by-step explanation:

#4 - The reason it's 12 is because the -5 is in parenthesis which means they want you to find the absolute value of the number and then add it. The absolute value of a negative number is positive.

#3 really you're adding 5 to -7.

#2 opposite of #3, you can think of it as subtracting 5 from -7.

Related Questions

Kennedy School is taking the 6th grade students on a field trip to the zoo. There MUST be 1 teacher for every 11 students. There are a total of 48 people going on the field trip.
A: How much students are going?
B: How much teachers are going?
C: If 21 students fit on each bus, how many school buses do we need in order to get ALL of the people to the zoo?

Answers

Answer:

A. 44 students are going

B. 4 Teachers are going

C.  3?

Step-by-step explanation:

A. 44 students are going because if you take 11 students and 1 teacher you multiply 11 by 4 and get 44 add 4 more 48 in total.

B. ^^^

C. Take 21 from 48 two times. You have 6 left over. So you ethier cram the 6 left over in there or get another bus.

Hope I helped!!

Answer:there is 44 student and

4 teachers

Step-by-step explanation:

A survey of a group of seventh graders and a group of teachers at a local middle school asked how many siblings they each have. The dot plots below show the results.
.
Students
A dot plot titled Students. A number line going from 0 to 9 labeled number of siblings. There are 2 dots above 0, 4 above 1, 7 above 2, 5 above 3, 2 above 4, and 0 above 5, 6, 7, 8, and 9.
.
Teachers
A dot plot titled Teachers. A number line going from 0 to 9 labeled Number of siblings. There is 1 dot above 0, 3 dots above 1, 2 above 2, 4 above 3, 5 above 4, 3 above 5, 1 above 6, 0 above 7, 1 above 8, and 0 above 9.
.
Based on the shape of the two dot plots, which statements correctly compare them? Select three choices.
.
The center of the data for students has a value less than that of the center of the data for teachers.
.
The center of the data is to the right of the dot plot for both teachers and students.
.
There is a greater variation in the data for teachers than for students.
.
Both sets of data cluster around 2.
.
The same number of teachers as students were surveyed.

Answers

Answer:

The center of the data is to the right of the dot plot for both teachers and students.

There is a greater variation in the data for teachers than for students.

The center of the data for students has a value less than that of the center of the data for teachers.

Step-by-step explanation:

Based on the shape of the two dot plot correct statements are as follow

The center of the data for students has a value less than that of the center of the data for teachers.

The center of the data is to the right of the dot plot for both teachers and students.

There is a greater variation in the data for teachers than for students.

What is number line?

" A number line is a representation of straight line on which numbers are marked at equal intervals."

According to the question,

As we can see in the diagram of number line dot,

The center of the data for students is near to 2 .

The center of the data for teachers is more than 3.

Therefore,

The center of the data for students has a value less than that of the center of the data for teachers.

From the diagram of number line dot plot we can observe this

The center of the data is to the right of the dot plot for both teachers and students.

Teachers variation is from 0 to 8  .

Students variation is from 0 to 4.

Therefore,

There is a greater variation in the data for teachers than for students.

No , teachers data is cluster around 3 and 4.

Number of teacher surveyed = 8

Number of students surveyed = 5

Hence, first three statements are correctly compare teachers and students.

Learn more about number line here

https://brainly.com/question/13189025

#SPJ2

help meh pls I will give Brainliest to the first person to answer

Answers

Answer: 21 :)

Step-by-step explanation:

Kelly earned $50 in one week by working 6.25 hours. Kelly was paid $_____ per hour.

80

0.80

8

Answers

Answer:

kelly was pain $8 per hour

Answer:

8$ per hour

Step-by-step explanation:

Please help? correct gets brainliest tysm!

Answers

Answer:

B

Step-by-step explanation:

Please mark me brainleist

i think the answer is B

GIVING BRIANLIEST!!!!!!!!!!!!!!!!!!!!! ANSWERR PLZZZ

Answers

Answer:

B

Step-by-step explanation:

Division is the only accurate one bc adding and subtracting have nothing to do with finding the number each classmate receive. Multiplacation goes way too high.

-2+___=9
7+__= -1
6+__=14
-4+___= -13

Answers

First one is 7 second one is 6 Third one is 8 last one is 9
7/6/8/9 that’s ur answer for u question u ask

Someone help me with this

Answers

Answer:24

Step-by-step explanation:

plz HELP! A music store has a 30% off all instruments sale.

A. A guitar regularly costs $45.What is the discount price?

B. If the regular price of an item is x dollars, what is the discount price in dollars?

Answers

If the regular price is x, the discount would be x - (30x)
Also the guitar is $31.5

Create a tree diagram for throwing a six sided die and then a coin in the air.

Answers

Answer:

-------------

|     |   |     |

__ __ __   __

Step-by-step explanation:

GIVING BRAINLIEST WHOEVER ANSWERES CORRECTLY!

Answers

Answer:

c

Step-by-step explanation:

Selena rewrote the expression 4(5m + 12s) using the distributive property. What expression did Selena create?

Answers

Answer:

20m+48s

Step-by-step explanation:

Answer:

20m+48s

Step-by-step explanation:

can somebody please help me, question down below ;((

Answers

You have to divide the 36 by 9.

help pleaseeeeeeeeee i dont know what else to write i just need 20 characters

Answers

Answer:

the answer is...

Step-by-step explanation:

Meggane and her family went to a fair. Meggane spent 1/2
of her money on rides. She then spent $3.00 on snacks. At the end of the day, Meggane had $2.00 remaining. The equation

1/2 d – 3 = 2 represents this situation. How much money did Meggane bring to the fair?

Answers

Answer:

If you solve for y, the relationship is y = -x + 20. Since the equation isin the form y = mx + b with m = -1 and b = 20, the equation is linear. It is not proportional because b ≠ 0.

hey let me cleaer this up. the parenthesis is the equivalent fraction to that fraction. I dont need it asap but I would like correct answers because Im checking. show your work!

Answers

I'm confused abt wht you need help with

Answer:

3 5/8 = greater than 1

11/24 = between 0 and 1/2

14/15 = between 1/2 and 1

Step-by-step explanation:

Well, you can see that for 3 5/8, 3 is clearly greater than 1.

For 11/24, you know that 12 is half of 24, so 11/24 is between 0 and 1/2.

For 14/15, it is closest to 1, so it is between 1/2 and 1

HOPE THIS HELPED!!!

Which statement is true about the equation fraction 3 over 4z = fraction 1 over 4z − 3 + 5?

It has no solution.
It has one solution
It has two solutions.
It has infinitely many solutions.

Answers

Answer:

It has two solutions.

Step-by-step explanation:

Answer:

two solutions

Step-by-step explanation:

A clothing store used the sign shown below to advertise a discount on shirts.

DISCOUNT
Buy Two Shirts
Get 50% Off Third Shirt

Celia wants to buy three shirts, which were originally priced $56 each. The store will discount the
price of the third shirt and then apply a 7% tax to the total cost of all three shirts.

Including the tax.
what will be the mean cost of each shirt? (Round your answer to the nearest cent).

Including the tax, the mean cost of each shirt is $___?

Answers

Answer:

$49.93

Step-by-step explanation:

Original cost = $56

Cost of 3 shirts:

3*$56 = $168

Cost of 3 shirts with discount:

168 - 1/2*56 =

168 - 28 =

$140

Add tax:

$140*1.07 = $149.8

Mean cost of each shirt:

$149.8/3 = $49.93


Let x represent the number of adults entering the movie theater and let y represent the cost,in dollars,of admission to the movie theater.Write an equation to illustrate the relationship between the number of adults entering the theater and the cost in dollars for admission

Answers

Answer:

y=9x

Step-by-step explanation:

We are given that x is number of adults entering the theater, and that y is the total cost. When we look at the graph, one person is at 9 dollar, 2 people are at 18 dollars, so on and so forth. If we take 2 ordered pairs, in this case we can use (1,9) and (2,18) we do the slope formula. We will do (18-9)/(2-1)

then we get 9/1 meaning it is $9/1 ticket.

our equation is then going to be y=9x

The cost of 3 pounds of grapes is $6.57. What is the constant of proportionality that relates the cost in dollars, y, to the number of pounds of grapes, x?
what is the value of the expression -4.5 x -8.5

Answers

Answer:

2.19x=y

Hope this helps!

Three times Jamie's age plus 3 is Maria's age. Maria is 48. What is Jamie's age?

Answers

Answer: 15 because 15 times 3 is 45 and then add 3 and its 48

Answer:54

Step-by-step explanation:

Write an equation and solve. Round to the nearest hundredth where necessary.

58 is 100% of what number?


A. 58 = 1 • x; 58

B. 58 = 1 • x; 60.3

C. 1 = 58 • x; 39.4

D. x = 58 • 1; 58

Answers

Answer:

A

Step-by-step explanation:

100% means all.  

58 is 100% of 58

The answer is 58 let’s go get dis 100

Select the graph that matches the equation. y= -x

Answers

the second graph matches the equation y=-x. hope this helped! :)
the second graph matches

WILL GIVE BRAINLIEST
NONO ANSWERS WILL BE REPORTED

Answers

I believe it would be 100.8

Answer:

the answer 11.20

Step-by-step explanation:

please help me ill give you brainliest

Answers

2(x-8)=3 :)) hope this helps

⊙﹏⊙What are the slope and the white intercept of the liner function as represented by the equation
8x - 2y=5?
A.the slope is -5/2 and the y-intercept is 4
B.the slope is 5/2 and the y-intercept is 4
C.the slope is 4 and y-intercept is -5/2
D.the slope is 4 and the y-intercept is 5/2​

Answers

Answer:

slope intercept form y=mx+b

8x-2y=5 can be written as y=4x-5/2

slope= b=4;

y-intercept= -5/2

Step-by-step explanation:

It’s D
The slope is 4 and the y intercept is 5\2

Need help on algebra, plz don't answer if you cant help.

Answers

Answer:

2

Step-by-step explanation:

2 Hope this helps !!!!!!!!

Each batch of cookies is 8.9 oz. What is the weight of 2.5 batches of cookies? *help me with this please and thank you*

Answers

8.9 x 2.5=22.25 that’s your answer

Answer:

22.25

Step-by-step explanation:

8.9oz+8.9oz+(8.9oz*1/2)

i need the answer please

Answers

4.67 x 10^3
which is equal to 4670 .

Elena walked 12 miles. Then she walked LaTeX: \frac{1}{4}1 4 that distance. How far did she walk all together

Answers

Answer:

In all, she walked 15 miles. (1 x 12) / 4 = 12/4 = 3, 12 + 3 = 15

The total would be 15 I think
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