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Rus_ich [418]
3 years ago
14

X+3=12 solve for x. x =

Mathematics
1 answer:
NeX [460]3 years ago
3 0

Answer:

X is 9

Step-by-step explanation:

9 + 3 = 12

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Dr bell donated 2(3x+60) dollars to the salvation army, 5x dollars to the church and $100 to a sport shop. If he donated a total
Andreyy89
He donated $285 to the salvation army.
The first thing to do is solve for "x". The equation would be {2(3x+60)}+5x+100=550. 
Then, you would multiply 2 with 3x and 60. Your new equation would be 5x+120+5x+100=550. 
Next, you would combine like terms. This means to combine the terms that are similar. In this case, it would be the whole numbers and the numbers with the variable. Your new equation would be 10x+220=550. 
After that, you subtract 220 on both sides of the equal sign. This makes the equation 10x=330. 
Then, you divide ten on both sides of the equal sign, giving you x=33.
The second things to is replace the x with 33. The amount for the salvation army is 5x+120. Replacing 33 with x, your final equation will be 165+120=$285.

Have a great day!!! :)
5 0
3 years ago
Mark and his 3 friends agreed to join the School’s talent show. They then decided how to pick the song that they will sing for t
laiz [17]

Answer:

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Step-by-step explanation:

In order to get to choose the song Mark needs to roll a 1 since a 2 is the smallest number already rolled.

<u>Probability of rolling a 1 is:</u>

  • P(1) = 1/6
8 0
3 years ago
I am having trouble with math and i need help. I make Fs and Ds every progress reports .please someone help me.
aleksley [76]
Ok what do you need help with?

8 0
3 years ago
Observa los polígonos y completa la siguiente tabla sabiendo que los polígonos son
Flauer [41]

Answer:

sorry i can't understand your language ? please let me in English language ~_~

3 0
2 years ago
Which is the equation of the graphed line written in standard form? y = x x – 1/2y = 0 x – y = 0 y =1/2x
Airida [17]

The standard for of this equation is x – y = 0

Firstly, options A and D are not in standard form, so they are not options.

To decided between B and C, we choose a point on the line and see if it works. For example, we'll use (2, 2).

x – y = 0

2 - 2 = 0

0 = 0

This is true for option C. Therefore, it is correct.


4 0
3 years ago
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