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Vanyuwa [196]
3 years ago
5

How many solutions does this equation have 9x + 10= 1—3(5-3x)

Mathematics
2 answers:
charle [14.2K]3 years ago
4 0
There is no solution to that equation.
timama [110]3 years ago
3 0
There isn't a solution. Due to the equations being equivalent, and the variable x being apart of both, you need to isolate x to one side. This is what I ended up doing:
9x+10 = 1-3(5-3x)
9x+10 = 1-15+9x
9x+10 = 9x-14 
     -10        -10
9x = 9x-24
At this point, you can see the problem. I have to subtract the 9x from the right side in order to isolate the x to the left, but by doing so, I also get rid of the x on the left, leaving me with:
0 = -24
But 0 can't equal -24. Therefore, I'm left with the conclusion that this equation is unsolvable.
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Jake had 17 toy cars. He gave Dan and Andy each the same number of toy cars. Now Jake has five toy cars. How many toy cars did h
andrew-mc [135]

Answer:

Each friend got 6 cars each

Step-by-step explanation:

17-5= 12 cars

He gave 12 cars away.

Since there are 2 friends, you divide the cars given away by 2, hence

12/2= 6

3 0
3 years ago
I need help with numbers 15 and 18!!! what does x equal? help asap!!
Sav [38]

Answer:

15. x = 112 degrees

18. x = 120 degrees

Step-by-step explanation:

<u>15.</u>

A triangle's angles always equal 180 degrees so we can find the two unknown angles by subtracting 44 from 180 and then dividing it by 2.

2a + 44 = 180

2a = 136

a = 68

Each unknown angle equals 68 degrees. The line from 44 degrees to x degrees segments a line that has a 180 degree angle so we can subtract 68 from 180 to get x.

x + 68 = 180

x = 112

<u>18.</u>

We can use the same concept here but now every angle equals each other so we can divide 180 by 3 to get the measure of those angles.

3a = 180

a = 60

Now we do the same thing as last time to find x.

x + 60 = 180

x = 120

6 0
3 years ago
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zhuklara [117]

Answer:

Step-by-step explanation:

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7 0
3 years ago
Q1: A number minus 4 is greater than 2 times a number
xeze [42]

Answer:

x - 4 > 2x

(see below to solve for x if needed)

Step-by-step explanation:

"Greater than" is key word for the greater than symbol: >.

"A number" can be represented by x.

So "a number minus four" would be x - 4 and "two times a number" would be 2x.

So "A number minus 4 is greater than 2 times a number" is:

x - 4 > 2x

If you were to solve for x, it would be:

x - 4 > 2x

-x         -x

-------------

-4     > x

x < -4

7 0
3 years ago
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