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algol13
3 years ago
5

Someone plsss help me with this

Mathematics
2 answers:
eduard3 years ago
7 0

Answer:

x=5

Step-by-step explanation:

a_sh-v [17]3 years ago
6 0

Answer:

x = 5

Step-by-step explanation

<u>3x+2x</u>+7 = 32

5x = 32-7

5x= 25

then divide both sides by 5 so u isolate the x

therefore ur ans = 5

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the units digit of a two-digit number is twice the tens digit. If the digits are reversed, the new number is 9 less than the ori
Anton [14]

Answer:

36

Step-by-step explanation:

Here is the correct and complete question: The units digit of a two-digit number is twice the tens digit. If the digits are reversed, the new number is 9 less than twice the original number. What is the original number?

Lets assume the original number be"10y+x". (x is unit digit and y is 10th digit)

∴ if number is reversed then resulting number be "10x+y".

As given: x= 2y

        and 10x+y= 2(10y+x)-9

Now, solving the equation to get original number.

10x+y= 2(10y+x)-9

Distributing 2 to 10y and x, then opening the parenthesis.

⇒ 10x+y= 20y+2x-9

subtracting by (2x+y) on both side.

⇒ 8x= 19y-9

subtituting the value of "x", which is equal to 2y.

∴ 8\times 2y= 19y-9

⇒ 16y=19y-9

subtracting both side by (16y-9)

⇒ 3y= 9

cross multiplying

We get, y= 3

y=3

∵x= 2y

x=2\times 3= 6

∴ x= 6

Therefore, the original number will be 36 as x is the unit number and y as tenth number.

6 0
3 years ago
Select all the values of x so g(x) is not a function.
alexdok [17]
The answer is 6 and 9
Step-by-step explanation: We are trying to figure out what makes the chart not a function. A function is is one input equals one output.
so all you have to do is look at the x and look at the number that is already there and just make it repeat.
3 0
3 years ago
if 4 shirts and 3 ties cost 241. and 3 shirts and 4 ties cost 200. what is the cost of 1 shirt and 1 tie?​
Inessa05 [86]

Answer:

cost of 1 tie = 11

cost of 1 shirt = 52

Step-by-step explanation:

3 0
3 years ago
Make n the subject of the formula: M=3n
natta225 [31]
Divide each side by 3. ----- n=M/3 .
4 0
3 years ago
X=8<br> find ∛x=??????????????????
marissa [1.9K]
The cube root of 8 is 2. 2*2*2=8
8 0
3 years ago
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