MATHEMATICS MIDDLE SCHOOL

Simplify the expression by combining like terms.15 + 12x – 5x + 4y - 7

(A) 11xy + 8
(B) 7x + 4y + 8
(C) 7x + 4y - 7
(D) 15 + 11xy - 7

Answers

Answer 1
Answer:

Answer:

15 + 12x - 5x + 4y - 7 = 7x + 4y + 8

The correct answer is B.

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27 students are learning to make balloon animals. There are 172 balloons to be shared equally among the studentsA. How many balloons are left over after sharing them equally.

B. if each student needs 7 balloons, how many more balloon are needed? Explain

Answers

10 balloons are left over after sharing them equally and 17 more balloons are needed

  • Numbers of students learning to make balloon animal = 27
  • Total balloon to be shared equally among the students = 172

Further Explanation

First step:

To determine how many balloons each student gets = the total balloons to be shared equally among the students divided by the number of students learning to make balloon animal.

Therefore, we have:

= (172)/(27)

= 6.37  

= 6 balloons (each student get 6 balloons)  

Second step:

To get how many balloons will be used by the entire student, then we should multiply the number of balloon each student gets (6) and the numbers of students learning to make balloon animal (27)

Therefore, we have:

= 6 x 27  

= 162 (162 balloon will be used by the student)

To calculate the remaining balloons, then we have to subtract the total balloons to be shared equally by the students and the numbers of balloon to be used by the entire students

Therefore, we have:

= 172 – 162

= 10 balloons.

Thus, 10 balloons are left over after sharing them equally.

Part B:  

If each student needs 7 balloons, then 17 more balloons are needed.

Since we have 10 balloons left after sharing them equally, to determine how many more balloons are needed = total number of students learning to make balloon animal – the numbers of balloon left over after sharing them equally.

Therefore, we have:

= 27 – 10

= 17  balloons

Therefore, if each student needs 7 balloons, 17 more balloons are needed.

Another step:

Another way you could determine how many balloons are needed is to multiply the numbers of balloon each student needs and the total number of student learning to make balloons animals, and subtract the value you derived from the total balloon to be shared equally among the students.

Therefore, we have:

= 7 x 27

= 189 balloons

= 189 - 172

= 17 balloons.

LEARN MORE:

KEYWORDS:

  • balloon animals
  • 7 balloons
  • numbers
  • dividing
  • multiplying
  • students
A.) .4 of a balloon is left
To Check:
what I did was divide 172 by 27 and it is 6.37 rounded to ........6 is an equal number so I kept it and .4 will be left over after sharing equally.

B.) 17 more balloons are needs
To Check:
what I was multiply 27 by 7 because each student needs seven balloons and I got 189 after that I subtracted 172 from 189 (189-172=17)
to see how many more balloons are needed.

In how many ways can 3 cards from a deck of 52 cards can be laid in a row face up?

Answers

ok slot method
3 slots
1st slot has 52 options
2nd slot has 51 optoins (1 went to first slot)
3rd slot has 50 options (1 went to previous slot)

number of ways=52*51*50=132600 ways
6 ways cause you can out them in a different row

An expression that is equivalent to 7/8.

Answers



7/8 ...* 5 = 35/40 


7/8 ...* 10 = 70/80 

How do you solve n+2=-14-n

Answers

The requried solution to the equation n + 2 = -14 - n is n = -8.

To solve the equationn + 2 = -14 - n, we can use basic algebraic operations to isolate the variable n on one side of the equation. Here's how:

Start with the given equation: n + 2 = -14 - n

To eliminate the negative sign in front of the second term, we can add n to both sides of the equation:

n + n + 2 = -14 - n + n

Simplifying, we have:

2n + 2 = -14

Next, we want to isolate the variable term, so let's get rid of the constant termon the left side by subtracting 2 from both sides:

2n + 2 - 2 = -14 - 2

Simplifying, we get:

2n = -16

Finally, to solve for n, we divide both sides of the equation by 2:

(2n) / 2 = (-16) / 2

This simplifies to:

n = -8

Therefore, the solution to the equation n + 2 = -14 - n is n = -8.

Learn more about the simplification of equations here:

brainly.com/question/2804192

#SPJ6
Idk SisMan 
n + 2 = -14 -n
                +n
2n + 2 = -14
      -2
2n = -16
 ^>>>>>>>-16/2
n= -8

What is the value of the underlined digit

Answers

The value of the underlined digit depends on the place the number that is underlined is. For the first digit, it would be ones. The second digit is 10s. The third is 100s and the fourth is thousands and the fifth is ten thousands and the 6 is hundred thousands, and the seventh is million, and so on.

What is 32.7 times 10

Answers

The answer is 327. Remember that when you multiply a number by ten, you move the decimal point to the right one place.
Hope that helped you.
32.7x10 would be 327
because since your multiplying a decimal by ten all you have to do is move the decimal over 1
So your answer is 327

Hope this helped! :))
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