Mathematics Middle School

please help ill give brainliest

Please Help Ill Give Brainliest

Answers

Answer 1

Answer:

-13

Step-by-step explanation:

My bad, I did my math wrong. Its -3.

Answer 2

Answer:

-(-5) - 8=

5-8= -3

Step-by-step explanation:

replace the variables with the numbers and solve it like a normal equation

Related Questions

In Science class, Mrs. Olson had 30.6 pounds of metamorphic rock. Mrs. Olson had to divide the rocks into 9 different containers for a class assignment. If the rocks are equally divided into 9 different containers, how many pounds of rock will be in each container?

Answers

The answer is 3.4 because 30 can’t be divided equally into 9, reason being that 9 x 30 = 270 which doesn’t make sense, so you have to divide 30 equally into 9 parts then turn it into a ratio.

the answer is most likely 3.4

A landscape supply business $30 to deliver mulch. The cost of the mulch is $23 per cubic yard. Write and solve a linear equation to find the cost of having 8 cubic yards of mulch delivered to a site.

Answers

The answer is $209 bye lol

Please help ASAP!
Evaluate the expression : 5/9 ( F - 32) when F = 122
1. 50
2. 60
3. 40
4. 20

Answers

1.50 5/9(122-32)=5/9(90)= 50

Answer: 50

Step-by-step explanation:

5/9 (f-32) if f = 122 you take 122 and subtract 32 because of order of operations and now you have 5/9 (90) and then you multiply 5/9 times 90 and you get 50

Help thank you
Xxxxxxx

Answers

The answer to this is C. I hope this helps you out.
Ok Kenifer Lopez we stan queen why are you doing math?

IS THIS RIGHT??? IF THIS ISNT THEN PLEASE HELP ME!!!!!!

Answers

Answer: Which question?

The Wagner school store is having a sale! At the sale this week, a life sized stuffed animal of Wagner’s mascot is being sold for $158.40. This is a 52% discount of the original price. What is the original price? If necessary, round to the nearest cent.

Answers

Divide the sale price by the percentage of the original cost.

Percent of original cost = 100% - 52% = 48 %

158.40 / 0.48 = 330.00

The original price was $330.00

[(23 × 2.5) , 1 2] + 120
Please solve

Answers

The answer is 810
23*2.5=57.5
57.5*12=690
690+120=810
23 x 2.5 = 57.5 x 12= 690 + 120 = 810

select the equation that represents the problem let x represent the unknown number

Answers

Answer:

D

Step-by-step explanation:

Answer: D is the answer

Step-by-step explanation:

Susan incorrectly factored the expression below.

Answers

12a+15b+9 cause 3*4a=12a 3*5b=15 and 3*3=9

Jada volunteers at the animal shelter. She divided 5 cups of cat food equally to feed 20 cats. Each cat received x cups of food.
Answer choices:

x + 5 = 20
x = 20 + 5
5x = 20
x + 20 = 5
520 = x
20x = 5

Answers

it would be option 3
5x=20
The answer is 5x=20 option 3

Convert 25/6 into a mixed number

Answers

Answer:

4 1/6

Step-by-step explanation:

4.16666666666666666666656

On Saturday, Lukas drove 4x – 5 miles. On Sunday, he drove 3x – 10 miles. What is the difference in miles driven?

Answers

Step-by-step explanation:

4x-5-(3x-10)=4x-5-3x+10=x+5 miles! Hopes This Helps!

Answer:

4x-5-(3x-10)=4x-5-3x+10=x+5 miles

Step-by-step explanation:

i know because i did this

It is possible to write an equation to describe a geometric sequence.


True or False

Answers

Answer:

The answer is true

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

help first one gets the crow thing!
5-4t = 6

Answers

The answer is negative one fourth.

t = 1/4

-----

First, rearrange the subtraction problem

5 - 4t = 6 is the same as -4t + 5 = 6

-----

Next, subtract 5 from both sides

-4t + 5 - 5 = 6 -5

This is known as the Subtraction property of equality.

-----

Then, since 5-5 is 0 and 6-5 is 1  

-4t = 1

-----

Then, you would divide that so

-4/-4 = 1/-4

-----

So your answer would be

1/4!

I'LL GIVE BRAINLIEST

Answers

Answer:

i think a triangle

Step-by-step explanation:

Why does the sum of the two given angles equal 180°? (2x+1)+(x-7)=180

Answers

Answer:

because its a straight line

Step-by-step explanation:

Answer:

Since the sum of the angles is 180 degrees and each angle is represented by the respective algebraic expressions, then to find the value of x, just add the expressions up, set that sum equal to 180, and solve for x. So, (2x-7)+(x+25)+(3x+12)=180 is our equation. Now we just simplify and solve for x.

(2x-7)+(x+25)+(3x+12)=180

6x+30=180 b/c 2x+x+3x=6x and -7+25+12=30.

6x=150 subtract 30 from both sides of the equation

x=25.

Step-by-step explanation:

Hope this helps!

please help me on my math please i dont wanna fail

Answers

Answer:

5. 78.54

6. C

7. 254.47

8. 50.25

Step-by-step explanation: :) Remember, the radius is just half of the diameter. So if the Diameter is 18, the radius is 9.

If /_C and /_D are complementary angles, m/_C = (4x + 3), and m/_D = (15x - 8), find m/_D.

Answers

The answer is 52

You’re welcome

How much interest will be earned in 4 years from $2,450 placed in a savings account at 6.5% simple interest? (Remember the I=PRT; where I=interest, P=money, R=% as a decimal; and T=time)

Answers

Answer:

6100.80

Step-by-step explanation:

4.6969 is answer you’re welcome so much

Which expression is NOT equivalent to (6x + 10)? A.3x + 5 B.1/2(6x) + (10) C.6/2x+10/2 D.3x + 10 --------------------------------------------> Please help :>

Answers

Answer:

A, C

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Are these expressions equivalent? (Simplify & substitute)
2(4n+2)-2 8n+2

Answers

Yes because when you distribute the 2 it would be 8n + 4 so the other one would be 8n + 2+ 2 so 8n + 4 again your welcome
No one is adding 2 and one is subtracting 2.

The point (5, -1) is reflected over the
x-axis. What are the new coordinates?
A. (-5, 1)
B. (-5, -1)
C. (5, 1)
D. (-1,5)

Answers

Answer:

c

Step-by-step explanation:

when reflected across the x-axis the x becomes  negative and vise versa

when reflected across the y axis the y becomes negative and vise versa  

The new coordinates will be  [tex](5,1)[/tex] .

What are coordinates ?

Coordinates determine the position of the points or other geometric elements on graph.

We have,

Point [tex](5, -1)[/tex].

Reflected over x-axis,

So,

If a point [tex]( x,y)[/tex] under a reflection on the x-axis will be [tex](x,-y)[/tex] .

So,

according to the above mentioned statement,

Point [tex](5, -1)[/tex] reflected on the x-axis

We get ,

Reflected point [tex](5,1)[/tex] .

So, the new coordinates are  [tex](5,1)[/tex] .

Hence, we can say that the new coordinates will be  [tex](5,1)[/tex] .

To know more about coordinates click here

https://brainly.com/question/15300200

#SPJ3

HELP PLZZ I FORGOT HOW TO DO THIS!!!! What is the surface area of the square pyramid represented by the net?



Enter your answer in the box.

Answers

Answer:

39[tex]ft^{2}[/tex]

Step-by-step explanation:

Area of a triangle = [tex]\frac{1}{2}[/tex] × base × height

All four triangles are similar. So finding the area of one triangle, will be the area of the other triangles.

 [tex]\frac{1}{2}[/tex] × 3 × 5 = 7.5[tex]ft^{2}[/tex]

∴ The area of 4 triangles are 7.5 × 4 = 30[tex]ft^{2}[/tex]

Then the only shape remaining is the square.

Area of the square = [tex]length^{2}[/tex] (all the sides of a square are equal)

= [tex]3^{2}[/tex] = 9[tex]ft^{2}[/tex]

Total surface area = 30 + 9 = 39[tex]ft^{2}[/tex]

Robin made ribbons for school spirit day. Robin has 15 friends who
want ribbons. Her roll of ribbon was 30.8 feet long. For each individual
ribbon she needed 0.625 ft. How many ribbons could she make from
her roll?

Answers

Answer:

She can make 97 ribbons from her roll

Step-by-step explanation:

30.8 divided by 0.625 is 97.28, but the friends would like whole rolls, so I got 97

Answer:

Robin can make 49.28 ribbons. Or if you wish to round, 49 ribbons.

Step-by-step explanation:

Her roll of ribbon is 30.8 ft long.

She needs 0.625 ft for each ribbon.

Divide 30.8 by 0.625

30.8 ÷ 0.625 = 49.28

- GoodThoughts

kyle is 4 times older than liam. in six years kyle will be 2 times older than liam. how old are they now?
PLS HELP ASAP!!!!!

Answers

Answer:

48

Step-by-step explanation:

4 x 6 = 24

24 x 2 = 48

hopefully i got this correct! enjoy !!

The answer is going to be 48

Can you help me graph this system of inequalities. And give the coordinates for the set.

Answers

Answer:

Here I made a yt vid to explain

Step-by-step explanation:

NEVER GONNA GIVE YOU UP

Use Desmos Graphing Calculator

PLS HELP ASAP GIVE BRAINLIEST
Two photos look at both

Answers

Answer:

likely, unlikely

Step-by-step explanation: if there are more black than red it will be a higher chance of black to be picked

likely, unlikely hope this helps you with your question

HELP PLEASEEEE!!!!!!!!!!

Answers

I think the permeate would be 8cm, correct me I’m I’m wrong. Sorry if I got the answer incorrect

study -----------------

A student gets 9 out of 15 problems correct on a homework assignment. What percent of the assignment did the student get incorrect?
_______%

Answers

60% !!!!!!!!!!!!!!!!!!

Answer:

40%

Step-by-step explanation:

PLEASE HELP!!
Which relation is a function?
A. {(4, 0), (4, -5), (4, -2), (2, -4)}
B. {(0, 1), (1, -4), (0, 5), (1, -7)}
C. {(3, 4), (1, -2), (-5, 4), (2, 2)}
D. {(3, -1), (2, 3), (10, 2), (10, 8)}

Answers

Answer:

only c is function as it has unique images

others are not function because image ain't unique

The answer is C cuz it is 3,4
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