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Firlakuza [10]
3 years ago
7

Which value makes the equation3x - 6 = 36 true?a) 10b)12c)14d)16​

Mathematics
1 answer:
ioda3 years ago
5 0

Answer:

C) 14

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, add 6 to both sides:

3x - 6 (+6) = 36 (+6)

3x = 36 + 6

3x = 42

Next, divide 3 from both sides:

(3x)/3 = (42)/3

x = 42/3

x = 14

c) 14 is your answer.

~

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The sum of 3 and a number is between -2 and 17.
kumpel [21]

Answer:

The number, x = { -5 < x < 14}

This means x is any integer between -5 and 14

Step-by-step explanation:

From the statement, let the number be x

3 + x = y; y = { -2 < y < 17}

This means that y is any integer between -2 and 17

Therefore, x = y - 3

Subtract 3 from the limits of y

i.e. -2 - 3 = -5 and 17 - 3 = 14

Hence, x = { -5 < x < 14}

4 0
3 years ago
NEED HELP ASAP need help with number 2
Viefleur [7K]
21/5.2
because in order to get mean you have to add all the numbers up and divide by the amount you added so 20+28+26+26+30+24+25+26+28+27= 210 divide by 10= 21 
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because it is means to mad ratio the answer is 21/5.2
4 0
3 years ago
2x-5y=10 <br><br> Solve for x and y<br><br> Plsssss
Gnesinka [82]
I honestly forgot about this but I can try and help you or just use an app
7 0
3 years ago
MATH!!! 15 points ;)) find the volume of the composite figure
andrezito [222]

Answer:

(2*2*1.5*1/3)+(2*1.5*4)= 14

Step-by-step explanation:

To find the area of a pyramid, you use the equation of 1/3 *lwh. When we place the values in there, we get 2*2*1.5*1/3, which is equal to 2. Then we solve the bottom part. Since it is a rectangular prism, we use the equation of lwh. When we insert the values, we get 2*1.5*4, which is equal to 12. Now, we take these two values of 2 and 12 and we combine them, giving us our final answer of 14.

8 0
2 years ago
How old am I if 400 reduced by 2 times my age is 244
zmey [24]

x = my age.


\bf 400-\stackrel{\textit{2 times my age}}{2x}~~\stackrel{is}{=}~~244\implies \stackrel{\textit{subtracting 400 from both sides}}{-2x=-156}\\\\\\x=\cfrac{-156}{-2}\implies x=78

7 0
3 years ago
Read 2 more answers
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