Mathematics Middle School

Which of the following represents the multiplicative inverse of -90?
A. - (- 90)
B. [tex]-1/90[/tex]
C. 90
D. -90

Answers

Answer 1
b because -90/1 and inverse is -1/90
Answer 2
I think the answer is B

Related Questions

Solve for x.



−2/3(3x−4)+3x=5/6




x=−19/6 ​

x=−11/6 ​ ​

x=21/6 ​

x=29/6

Answers

Answer:

X = 11/6

Step-by-step explanation:

Answer:

b) x = -11/6

Step-by-step explanation:

Given equation,

→ (-2/3)(3x - 4) + 3x = 5/6

Now the value of x will be,

→ (-2/3)(3x - 4) + 3x = 5/6

→ (-6x + 8)/3 + 3x = 5/6

→ (-6x + 8 + 9x)/3 = 5/6

→ -6x + 8 + 9x = (5/6) × 3

→ 3x + 8 = 5/2

→ 3x = (5/2) - 8

→ x = (-11/2) × (1/3)

→ [ x = -11/6 ]

Hence, value of x is -11/6.

Over the last week, the daily low temperatures in degrees Fahrenheit have been −4,6.4, 17 1/2, −5.8, 21, − 1/4, and 1.45. List these numbers in order from greatest to least.

Answers

Answer: 1.45, -4,6.4, -5.8, 17 1/2, -1.45, 21

Step-by-step explanation:

Jane can buy 3 bags of candy for her class of 25 children. If she has to buy candy for the combined classes which has a total of 65 children, how many bags of candy will Jane have to buy?

Answers

8 bags because you get 7.8 but you can’t buy .8 of a bag so you round up.
8 round up and there you go!

Kristen wants to ask the managers of the fast food restaurants in a large city "How do you retain employees?" What condition must be true to justify surveying only a sample of the managers instead of surveying the entire population of managers?

The population is small.

The population is diverse.

The population is not the target of the survey question.

The population is expensive and time-consuming to survey.​

Answers

I believe it is "The population is expensive and time-consuming to survey"

It is a large population, and conducting a census would be challenging.

Answer:

"The population is expensive and time-consuming to survey"

Step-by-step explanation:

"The population is expensive and time-consuming to survey"

Please help me I'd appreciate it

Answers

Answer:

answer one

Step-by-step explanation:

Answer:

2 3/4 units 3

Step-by-step explanation:

because it is a cube so it has to be squared and you have to multiply

Please help me

It’s probability

Answers

Answer:

32% or 8/25

Step-by-step explanation:

The answer is 32% or 8/25
I hope this helped you out

Please help!

20+(5 x 2/5) + 3

Answers

Answer:

25.

Step-by-step explanation:

Whenever you attempt to solve an equation with multiple operations, remember this: PEMDAS

ParenthesisExponentiation (exponents)Multiplication/DivisionAddition/Subtraction

**THIS IS THE ORDER IN WHICH YOU SHOULD SOLVE EQUATIONS WITH MULTIPLE OPERATIONS.**

First, we solve what is in parenthesis.

20+(5 x 2/5) + 3

5/1 x 2/5 = 10/5 = 2 (simplified)

Then, replace the equation with the answer.

20 + 2 + 3

Secondly, there are no exponents.

There is no multiplication nor division.

However, there is addition.

20 + 2 + 3

20 + 2 = 22

Now, we solve the remaining addition problem.

22 + 3 = 25.

Therefore, 20+(5 x 2/5) + 3 = 25.

Follow

Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

5*2/5=2
20+2+3
25

15 ft above sea level

Answers

Oh yeah its 15 ft above sea level

Kaylee's history class quiz scores for the current grading period are 10, 50, 75, 80, 82,
82, 97. The lowest score of 10 will not be counted. Which correctly compares the
original mean of the seven scores to the new mean of the six scores without the 10?

A. The new mean is LESS than the original mean.

B. The new mean is EQUAL to the original mean.

C. The new mean is EQUAL to the original mean minus 10.

D. The new mean is GREATER than the original mean.

giving brainlest!!

Answers

B is the answer I need the points

A math question about proportions, help

Answers

the answer is n=4.667
N=4.667 for that I think

Austin plays both forward and goalie on the school soccer team. He has played forward in 4 games for every 3 games he has been the goalie this season.

Answers

If the plays 6 games he would’ve played forward 8 times

a snack-sized bag of M&M's contains 5 green, 6 yellow, 8 blue, and 7 brown. What is the probability of pulling out a blue one

Answers

Answer:

38%

Step-by-step explanation:

8 out of 21 is 38

It is 38 pls give brainliest

(6th grade math) last question (sorry if im asking to much)​

Answers

Answer:

(in the box)

X Y Ordered Pair

4 2 (4,2)

6 3 (6,3)

8 4 (8,4)

10 5 (10,5)

Equation: y=2x

Miguel saves the same amount of money into a bank account each week. The bank account started with some money in it. After 3 weeks, the bank account contained $250. After 10 weeks the bank account contained $600.
Write an equation that can be used to model the number of dollars, y, Miguel saves in x weeks.
Explain what the slope and y-intercept of your equation mean in the context of the situation.

Answers

Answer:

jtjrjrjrjrjririisi

Step-by-step explanation:

djsejjejejeirjrhhrjsisk dndns

dndndjjrnrnr

ebebhehebdb

4.3 is 12.5% of what number?

Answers

Answer:

Step-by-step explanation:

0.5375

Answer:

I believe its 34.4

Step-by-step explanation:

This morning, Josh's car had 19.22 gallons of fuel. Now, 5.3 gallons are left. How much fuel did Josh use?​

Answers

Answer:

He used 13.92 gallons of gas.

Step-by-step explanation:

19.22-5.3=13.92

Answer:

13.92 gallons

Step-by-step explanation:

To figure this out you need to do 19.22-5.3 because 19.22 is how much fuel you started with and 5.3 is how much you have now. So by subtracting them, you can find the amount of fuel he used. 19.22-5.3=13.92

1/4k = 3 ( -1/4k +3 )

Answers

Answer:

K= 9

Step-by-step explanation:

Solve for  

k

by simplifying both sides of the equation, then isolating the variable.

I NEED HELP PLZZZ

A map is drawn to a scale of 1 : 20 000. Find the actual area, in km2, of a
field whose area on the map is 18cm2.
SHOW WORKING AS WELL

Answers

24km is your answer , as well lmk If it right

help !!!! the two way frequency table shows the seasonal preferences for a random sample of high school students

Answers

Answer:

its c

Step-by-step explanation:

The 3rd option is correct

A line contains (-1, 2) and (1, -1). What is the slope of the line?

Answers

Answer:

The slope is -3/2 ([tex]-\frac{3}{2}[/tex])

Step-by-step explanation:

I hope this helps! :)

Answer:

-1.5

Step-by-step explanation:

slope= y2-y1/x2-x1

slope= -1-2/1-(-1)

slope= -1.5 or [tex]-1\frac{1}{2}[/tex]

Sara has a spinner with 12 equal sections of blue, green, red and yellow. What is the probability she will spin yellow or green?

Answers

Answer:

4/12 or 1/3

Step-by-step explanation:

12 sections

Yellow: 1

Green: 3

4/12 or 1/3

I really hope I helped :D

Answer: 4/12

Step-by-step explanation:

What is 3÷0? (Your mind will be blown)

Answers

wait do you need help with this orrrrr

A sweater is on sale for $16, which is 80% of the original price. What is the original price of the sweater?

Answers

Answer:

$20

Step-by-step explanation:

If the sweater is on-sale for $16, and it is 80 percent of its original price, then the sweater must be originally $20 because 80 percent of $20 is $16.

Hope this helps!

Select all the side lengths that will make a triangle:

3,4,8

7,6,12

5,11,13

4,6,12

4,6,10

Answers

3,4,8 and 4,6,12 since the third side of a triangle has to be bigger than the other 2 sides added up.
3,4,8 and 4,6,12 or else it wouldn’t make a triangle and would be weird lol

Giving 21 points for answer!! Please help!!


Please give the answers to the amount of money and hours worked each day. Also what number to multiply by to find the amount earned.

Answers

Answer:

The bottom question is wrong. You have to multiply 8 to get the amount earned. But the rest is correct.

Step-by-step explanation:

6.25 x 8 = 50

12.5 x 8 = 100

18.75 x 8 = 150

25 x 8 = 200

31.25 x 8 = 250

Answer:

Helloooo. The bottom part is the only part of ur answer that's wrong. It is 8.

Step-by-step explanation:

I believe the other person that answered this shows this part correctly :)

Becky bought a magazine for $3.90, and the sales tax was 8.25%. How much sales tax did Becky pay on the magazine?

Answers

Answer:

$4.22 Is your answer.

Step-by-step explanation:

Becky payed 4.22 on sales tax

(BRAINLIEST) Joan and Ernie are earning money for summer camp. Joan receives a $7 weekly allowance plus $6 for each hour she helps her father paint. Ernie writes the equation y = 5x + 7 to represent the relationship between the number of hours he helps his father with yard work and his weekly allowance. Which statement best describes the graphs of their earnings?
A.) The lines have the same slope.
B.) The lines are both proportional.
C.) The lines have the same x-intercept.
D.) The lines have the same y-intercept.

Answers

Answer:

A

If it is right, then give me a brainllest okay?

A circle is cut out of a piece of plywood that is 10in. square.Find the area of the circle and How many square inches of plywood are thrown away?

If you can solve this AND show your work you get brainlist.

Answers

Answer:

Area of the circle: 78.54in^2

Plywood thrown away: 21.46 in^2

Step-by-step explanation:

So the area of the square is 100 in. To find the area of a circle, you use the formula (pi)r^2 where r is the radius, in this instance it is 1/2 of ten which is 5. Then, plug it into the formula which will get you (rounded to the nearest hundred) 78.54in^2. Then, subtract from the total plywood area. Please mark brainliest :)

In last night's basketball game, Jay made 8 of 12 free throws. About what percent of free throws did Jay make?

Answers

Answer:

60%

Step-by-step explanation:

I do believe it would be 60%

Please Help!!
I'm at a D on Math so please, help me!

This will improve my grade!!

Brainliest if correct!

Answers

Answer:

1/20

Step-by-step explanation:

please give brainliest, please?

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