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denis23 [38]
3 years ago
14

X + 9 = 18 + -2x what does x epual

Mathematics
1 answer:
babymother [125]3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

Step 1: Write out equation

x + 9 = 18 - 2x

Step 2: Add 2x on both sides

x + 2x + 9 = 18 - 2x + 2x

3x + 9 = 18

Step 3: Subtract 9 on both sides

3x + 9 - 9 = 18 - 9

3x = 9

Step 4: Divide both sides by 3

3x/3 = 9/3

x = 3

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400 reduced by twice my age is 210
Pavlova-9 [17]

Answer:

your age is 95

Step-by-step explanation:

so what minus 400 gets you 210? 190 so you took 190 away from 400 or reduced it by 190 and got 210 but you said that it was twice your age so we can do the inverse of times 2 which is divided by 2 and you would get 95.

8 0
3 years ago
5.
Ostrovityanka [42]

Answer:

integers, rational numbers

Explanation:

Integers are any whole number (positive or negative). -5 is a whole number, not a fraction or decimal.

Rational numbers can be written in the fraction form a/b where a and b are both integers and b does not equal 0. -5 can be written as -5/1.

4 0
3 years ago
Graph the solution. x/8>2÷(3+2x2+1)⋅2
Digiron [165]
X is the grater one becouse x/8>2 and evrethangs peced together at that point
7 0
3 years ago
I need help with this question
Bezzdna [24]

Answer:

It is all determined by how many spaces and which way the decimal point moves.

Step-by-step explanation:

So here are two examples

<em>Example 1:</em>

500000.00

To write this in scientific notation you would move the decimal place to the left.

You would move it 5 digits to the left so the exponent of 10 would be 5

5 * 10^{5}

<em>Example 2</em>

0.0000042

Here to write this in scientific notation you move the decimal place to the right.

You would move it 6 digits to the right so the exponent would be -6

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3 0
3 years ago
Which table of ordered pairs represents a proportional relationship?
bogdanovich [222]

Answer:

Third table

Step-by-step explanation:

For the relationship to be proportional

y/x = constant

First table y/x = 8/4 = 2    then 7/11 doesn't =2  so it is not

Second table y/x =52/5 = 5    then 49/7 doesn't =5  so it is not

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Last table y/x = 6/3 = 2    then 11/8 doesn't =2  so it is not

7 0
3 years ago
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