All categories

2 years ago

I need help solving this equation 4n-9=2(5+2n)

Mathematics

1 answer:

Nastasia [14]2 years ago

4 0

First, use distributive property on the right half.

2 * 5 = 10

2 * 2n = 4n

4n - 9 = 10 + 4n

Add 9 to both sides

4n = 19 + 4n

Subtract 4n from both sides

0 = 19

But thats not true. Therefore, there is no solution.

You might be interested in

Consider all numbers consisting of four different digits all between 1 and 9 . How many of these are odd

Slav-nsk [51]

Answer:

1680

Step-by-step explanation:

Considering repeatition is not allowed.

We can use permutation to reach to the required answer.

Consider four digits to be placed in four boxes. Now for the number to be odd, unit digit must be odd. Therefore, unit digit can only be filled by 1, 3, 5,7, or 9. That is 5 ways. Now, other three boxes can be filled with 8, 7 and 6 ways respectively.

Therefore, Total numbers = 5×8×7×6 = 1680

7 0

3 years ago

The line models Maria's saving account. She started with 7 in her account. She saves three each day. Write an equation for the l

artcher [175]

Answer:

y=7+3x

Step-by-step explanation:

Since she already has 7 in her account and she ADDS 3 more each day you would multiply 3 by x which represents the number of days and add that to seven because she already had it. This would equal to Y which represents the total in her account

8 0

3 years ago

List all the factors of 392.

pshichka [43]

Answer:

1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392.

UMM.. Not sure

might not be all of them but i guess it should help you:/

7 0

2 years ago

solve the following proportion for X (PICURE) (GIVING BRAINLEST TO CORRECT/BEST ANSWER) round to the nearest tenth.

densk [106]

Answer:

I just answer this

x = 4,235294118

Step-by-step explanation:

7 0

2 years ago

The equation 50=36.50+0.10m represent the additional number of messages roboerto can send with a budget of $50 .solve the equati

charle [14.2K]

Answer :
M = 135

Step by Step Explanation :
See the photo attached :) it’s kinda hard to explain in words but you cancel out the 36.50 by subtracting it on both sides, and then the equation becomes 13.50 = 0.10m. Since we have to get the m by itself, you cancel out the 0.10 by subtracting on both sides, and it leaves you with 135 = m

(Ignore my messy handwriting on a post it :3)

I hope this helped! If u have any questions feel free to comment on this!

4 0

2 years ago