MATHEMATICS MIDDLE SCHOOL

Which of the following ordered pairs represents a solution to the linearinequality y > 2x - 3?
O A. (3,2)
O B. (9,12)
O C. (4,4)
O D. (2,5)

Answers

Answer 1
Answer:

Answer:

O D. (2,5)

Step-by-step explanation:

y > 2x - 3

Substitute the points into the inequality and see if it is true

(3,2)

2 > 2(3) - 3

2> 6-3

2>3  False

(9,12)

12 > 2(9) - 3

12> 18-3

12>15  False

(4,4)

4 > 2(4) - 3

4> 8-3

4>5  False

(2,5)

5 > 2(2) - 3

5> 4-3

5>1  True
Answer 2
Answer:

Answer:D

Step-by-step explanation:

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Hot dogs come in packages of 6. Hot dog buns come in packages of 8. Antonio will buy the same number of hot dogs as hot dog buns. How many hot dogs could he buy?

Answers

Multiply them you will get 48
:-)
3 hotdog packages and 2 packages of hot dog buns

hope that helpes

Juanita organizes her magazines into 3 equal piles. She has a total of 18 magazines. How many magazines are in each pile

Answers

The number of magazines in each pile will be 6.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Juanita organizes her magazines into 3 equal piles. She has a total of 18 magazines.

The number of magazines in each pile will be calculated as,

N = 18 / 3

N = 6 piles

Therefore, the number of magazines in each pile will be 6.

To know more about an expression follow

brainly.com/question/11509741

#SPJ2
You just divide 18 by 3 and your answer is 6.

Each deli sandwich made uses 1/4 pound of roast beef. Marisa started with 5 pounds of roast beef and now has 3/4 pounds left.How many deli sandwiches did she make?

Answers

Let us assume the number of sandwiches made by Deli = x
Amount of roast beef required for making 1 sandwich = (1/4) pound
Total amount of beef that Marisa started with = 5 pounds
Amount of beef that was left = (3/4) pounds
Then
[(1/4) * x] + (3/4) = 5
(x/4) + (3/4) = 5
(x + 3)/4 = 5
x + 3 = 5 * 4
x + 3 = 20
x = 20 - 3
   = 17
So we can see from the above deduction that 17 Deli sandwiches was made by Marisa. I hope the procedure is clear enough for you to understand.

Solve and check y-12=4y

Answers

Answer:

-8

Step-by-step explanation:

The answer is -8 because y=4 so 4-12=-8

Please please help me

Answers

Answer:

Look at step by step!

Step-by-step explanation:

Angle D is 90 degrees and is being split in half making both sides 45 degrees.

You can use sine to solve.

sin45 = 5/y

y= 7.07 or the sqrt of 50

Answer:

Its 5. SUpere easy

Step-by-step explanation:

Plllzzz urgent urgent!!!!! 2 to 10 plzzz

Answers

53 yes no 68 96 54 38 68 45 49
To find the mean of a data set all you need to do is add up the numbers in the data set and divide by the number of numbers in the data set. So if the data set is (2,4,6,8,10,12) then you would do 2+4+6+8+10+12=42, then divide by the amount of numbers in that set, in this case the number is 6. So divide 42 by 6 and you get 7, so the mean equals 7. 

In your case they try to make it more difficult by excluding certain numbers,  what you have to do is make sure you keep track of the numbers you exclude. 

1.) Find the mean of the data set excluding numbers ending with 0 between 1-20.
Those numbers are: 1, 2,3,4,5,6,7,8,9,11,12,13,14,15,16,17,18,19.
Remember that you left out 2 numbers, 10 and 20. 
Add you data set together to get 180. Now you need to divide 180 by the amount of numbers, remember there are 2 less numbers than 20 so that is 18, 180 divided by 18 is 10.

2.) You will do the same thing for every problem, I will walk you through this one and do a few more but the rest is up to you. This question asks you to: find the mean of the data set excluding numbers with the last digit 2 between 1-10. List all of the numbers not ending in 2 between 1-10: 1,3,4,5,6,7,8,9,10. Add all of those numbers together: 53. Divide 53 by the amount of numbers in the data set, in this case, 9. 53 divided by 9 is 5.888888888888889 or 5.89.

3.) This question asks you: find the mean of the data set excluding numbers with last digit 5 between 1-20. In this case you will be excluding 5 and 15, that is 2 numbers. Add up: 1,2,3,4,6,7,8,9,10,11,12,13,14,16,17,18,19,20. You will get: 190, divide that by 18 to get: 10.55555555555556 or 10.56.

4.) This question asks you: find the mean of the data set using numbers between 1-20. So add up: 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20. You will get: 210. Divide 210 by the total number of numbers which is 20, the answer is: 10.5.

5.) This question asks you: find the mean of the data set excluding numbers ending with the last digit 1 between 1-10. So add up the numbers between 1 and 10, excluding 1 and 10: 2,3,4,5,6,7,8,9 to get: 44. since you took out 2 numbers divide by 8, 44 divided by 8 is 5.5.

I hope this helped, if you need any further help, just ask. :) 
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