Mathematics Middle School

simplify
1/2(1.45+0.75)+2 x 8.1

Answers

Answer 1

Answer:

11.2x

Step-by-step explanation:

Answer 2
17.3 is the answer I believe

Related Questions

if Sonja makes $2100 interest after investing $15,000 at 2.8%, how many years did she invest for?

Answers

Answer:

Sonja invested for 5 years.

Step-by-step explanation:

First you have to find how much money she gets in one year.

To do this you would have to multiply 15,000 and 2.8.

15,000 x 2.8 = 42000

You move the decimal 2 spaces forward since there are 3 zeros in 15,000 and one decimal place in 2.8.

This gives you 420.

To find how many years it takes for her to make $2100 you have to divide

2,100/420.

This gives you 5, which means that she invested for 5 years.

What should be done to solve the following equation?

(7.5)x = 45

Subtract 0.5 from both sides, then divide each side by 7.
Divide each side by 7.5.
Divide each side by 45.
Multiply each side by 7.5.

Answers

Answer:

dived by 7.5

Step-by-step explanation:

Divide by 7.5 and You’ll end up getting an answer their

(!) Brainliest Will Be Given (!)

Answers

Answer:

Look below

Step-by-step explanation:

To find the mean you need to add all of the numbers up and divide by number of items.

Mr. Farley- 66.70

Mr. Samuels- 56.14

To find the mean you need to add all of the numbers up and divide by number of items.

Ir. Farley- 66.70

Mr. Samuels- 56.14

Solve for X
3(x-4)=12.

Answers

Answer: x=8

Step-by-step explanation:

3(x-4)=12

Distribute the 3 into the parathesis'

3x-12=12

   +12 +12   on each side

3x=24

Divide by 3 on each side

x=8

8.
EXPLANATION.
because of pemdas. The equation in parenthesis must be first.
Knowing that the answer is 12.
And 1 factor is 3.
Since it is multiplication,
It is 3 x X = 12.
So x must be 4. 8 - 4 is 4.
So 8.

How many unit cubes with side lengths of 1/2 unit are needed to fill the right rectangular prism?

Answers

Answer:

4

Step-by-step explanation:

The original price of a pair of jeans was $40. The price was marked down to $35. What is the percent of decrease in the price?

Answers

Answer:

8 procent

Step-by-step explanation:

first i did 40/8=5 .

and then 40-5=35

Two interior angles of a triangle measure 64° and 81°.

What is the measure of the third interior angle of the triangle?

Answers

the third interior angle is 35°

64+81=145
180-145=35
64+81+x=180
145+x=180
180-145=x
X=35

PLEASE HELP I WILL GIVE BRAINLEST FOR RIGH ANSWER!!

Line A passes through the points (3,4) and (-1,2). Line B passes through the points (-12,0) and (-6,-4). At what point do the lines intersect?

Answers

I believe it’s (-10,-2). Please let me know if this worked and if not let me know and I’ll try a different way
It’s (-10,-2) I did this on a test and got 100% hope it helps

A toy store owner tracking how much kids spend each month on toys. Which choice best represents a population?

Answers

it would be A because that’s basically what the store owner is saying

An electrician charges $40 for each hour he works plus a $125 service charge. The total charge for a recent job was $1,205. Which equation could be used to determine the number of hours, h, that the electrician worked on the job?

A. 40h+1205=125
B. 1205h+40=125
C. 40h+125=1205
D. 125h+40=1205

Answers

C. 40h + 125 = 1205.

Answer:

C

Step-by-step explanation:

Are the two outcomes listed are equally likely to occur. Give a reason for your answer.

Selecting the letter a or k from the word "TAKE"

Your answer:

Answers

Answer:

Yes. When looking at the word "TAKE" you can see that there are four letters. The probability of selecting the letter 'a' would be 1/4. The probability of selecting the letter 'k' would also be 1/4. This is because they are 1 out of 4 of the letters making up the word "TAKE". So, the outcomes are equally likely to occur.

Hope this helped.

HELPPPP PLS
A fair coin is flipped 20 times. If the coin lands on
heads 13 times, which statement is true?
A. The coin lands on heads 3 less times than
expected.
B. The coin lands on heads 3 more times than
expected.
C. The coin lands on heads 5 less times than
expected.
D. The coin lands on heads 5 more times than
expected.

Answers

B because it’s a 50% chance of getting heads/tails and it landed 13 times out of 20 on heads so 3 more then 50% of 20
b because the coin has a 50% chance to land on heads or tails. Which means if its flipped 20 times it has a 50% chance to land on heads which is 10 times. The coin landed on heads 13 tikes which is 3 more than 10

im stuck on these 2 questions

Answers

Answer:

In the first question it is the 2nd table. On the second it is : No, the xost of the 9 shirts is incorrect

Answer:In the first question it is the 2nd table

Step-by-step explanation:

1. A box of pencils is 5 1/4 inches wide. Seven pencils, laid side by side, take up 2 5/8 inches of the width.

How many inches of the width of the box is not taken up by pencils. Show your reasoning.

2. All the pencils have the same width. How wide is each pencil? Show your reasoning.

Answers

Answer:Width of box is not taken up by pencils =  2 5/8

Step-by-step explanation:

explain how to find the slope of a line through two points on a table

Answers

Answer:

you use slope formula m=y2-y1/x2-x1

m=21-11/5-3=15.8

Step-by-step explanation:

so the 3 points you have are (-1,-9) (3,11) (5,21)

so i'm going to choose (3,11) and (5,21) 3 is x1 11 is y1

                                                                5 is x2 11 is y2

m=y2-y1/x2-x1

m=21-11/5-3=15.8

good luck :)

hopefully, this helps

have a great day !!

Take both coordinates (x,y) and use the formula y-y/x-x.

2. After conducting an experiment, a science student found that the force, y,
exerted by a hanging object increased as the mass of the object, X,
increased. Which scatterplot could represent the results of the experiment?

Answers

X= 34 im pretty sure im sorry
i think it’s 34 sorry if it’s wrong

Addison wants to ride her bike more than 80 miles this week. She has already ridden her bike 18 miles, which inequality could be used to determine the number of miles,m, she would need to ride her bike for the 6 more days to achieve her goal.

Answers

Answer:

she should ride her bike 3 miles for 6 days to reach her goal

Step-by-step explanation:

Solve for n
n/5 = 14
Pleas Help

Answers

n
--- = 14
5

14 × 5 = n

n = 70

Answer:

N=70

Step-by-step explanation:

To solve for this equation you solve it backwards by multiplying 5 with 14 to get your answer of 70.

Find the area of a circle whose circumference is 31.4 centimeters. (Pi form) {FREE BRAINLIEST]

A =
__
cm2

Answers

Answer:

78.46 cm^2

Use area formula

Answer:

78.5 cm²

Step-by-step explanation:

tell me if i got it wrong

Vic has 3 pairs of pants, blue, brown and black. He has 2 dress shirts, white and striped. He can also wear a yellow or green tie. How many possible combinations of pants, shirt, and tie can Vic make?

Answers

12 possible combinations
there are 12 different combinations


Andre is waiting for the schoo! bus. He knows that 2 out of 6 cars in his town are white. He wants to determine the probability that at least two white cars drive by in a row. He uses a number cube as a
simulation. He lets the numbers 1 and 2 represent a white car and lets all other numbers represent a car that is not white. He rolls the number cube 6 times and records the outcomes in the table below.
Trial Number Outcome
| 4, 3, 6, 1, 2, 4
5,5, 1,3,6,6
1
2
3
2,5,4,4, 1,3
4
6.1.5.6.6.4
5
2. 1, 2, 6, 4,5
6
3. 3. 1.4.2.6
7
1.5.6.2.2.3
8
3.6. 4. 3.4.4
9
1. 1. 2. 1.5.6
10
4.3.3. 1,5,2
Based on the data, what is the probability that at least 2 white cars drive by in a row?

Answers

Answer:

2 x 6 =12

Step-by-step explanation:

Find the value of the expression: g ÷ h for g = 12 and h = 2.

Answers

6.
g divided by h
can be replaced by
12 divided by 2
which equals 6.

Answer:

6 is the correct answer

Step-by-step explanation:

g = 12, h = 2

12 ÷ 2 = 6

proof that ur lying.

Answers

Answer:

HELLOOOO

Step-by-step explanation:

JUST WANTED TO SAY THAT BTS IS THE BEST IN KPOP :)

Answer:

lolol

Step-by-step explanation:

The figure can be composed of different shapes.

What shape can be composed to find the area of the figure? What is the area?
A. square; 140 square inches
B. rectangle; 151.2 square inches
C. square; 151.2 square inches
D. rectangle; 140 square inches

Answers

A is the correct answer

The area of the composed figure will be 140 square inches. Then the correct option is D.

What is the area of the parallelogram?

Let H be the height and W be the width of the parallelogram. Then the area of the parallelogram will be given as,

Area of the parallelogram = H × W square units

The figure can be composed of different shapes.

The composed figure is a parallelogram. The dimension of the parallelogram is 10 inches high and 14 inches wide base. Then the area of the parallelogram is calculated as,

A = 10 x 14

A = 140 square inches

The area of the composed figure that is a parallelogram will be 140 square inches.

The parallelogram is made from a rectangle. Thus, the correct option is D.

More about the area of the parallelogram link is given below.

https://brainly.com/question/16052466

#SPJ3

What is the slope of the line that goes through the points (-3, 8) and (0, 23)?


-5

-23/8

5

31/3

Answers

Answer:

5

Step-by-step explanation:

(-3, 8) and (0, 23)

m=(y2-y1)/(x2-x1)

m=(23 - 8)/(0+3)

m=(15)/3

m = 5

The correct answer is 5
Hope my answer helps you

Which of the following images has an angle highlighted in red?
Figure A

Figure B

Figure C

Figure D

Answers

Answer:

Figure B

Step-by-step explanation:

Hope this is right! Let me know !

Thanks!

Figure B.

An angle is basically a corner and the whole angle is highlighted so it would be B.

help plsssssssssssssssssssssssssssssssssssssss

Answers

Answer:

I believe they are not.

Step-by-step explanation:

The reason for this is that in the first algebraic expression there are parentheses which means you must do anything inside the parentheses first. On the other hand, the second expression doesn't have parentheses so you'll end up subtracting 3 from x, also not 100% sure!!

Answer: no answer but I talk too u on here tho

Step-by-step explanation:

Use the formula to calculate the number of diagonals in a 88-gon.

Answers

Answer:

Eh cafe donete mal reo jama kolotake? 24 eh moi -09....? kelare mei osaje.

car`e 3,000 = 2458.0? maro et

Step-by-step explanation:

Number of diagonals in a 88-gon = 3740

Step-by-step explanation:

Number of diagonals of a polygon

(where 'n' is the number of sides)

[tex] = \frac{n \times (n - 3)}{2} [/tex]

[tex] = \frac{88 \times (88 - 3)}{2} [/tex]

[tex] = \frac{88 \times (85)}{2} [/tex]

[tex] = \frac{7480}{2} [/tex]

[tex] = {3740} [/tex]

NEED HELP PLZ!!!!!!!!!

Answers

Answer:

y=25x-300

Step-by-step explanation:

We have to take the 300 out of the equation because that is getting taken away due to payment. She gains 25 per hour x being hours therefore being solved.

I’ll give brain list

Answers

Answer:

i hope i dont have to learn that sh*t

Step-by-step explanation:

common sense

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