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DiKsa [7]
3 years ago
11

Write an equation. Let x be the unknown number.

Mathematics
2 answers:
dolphi86 [110]3 years ago
3 0

Answer:

Unknown number, x=-4

Step-by-step explanation:

Forming the equation from the information provided above.  

9=2x+17

If we solve for the unknown number, we first collect like terms together.

2x=9-17

2x=-8

Divide both sides of the equal sign by 2 the coefficient of x

x=-4

pentagon [3]3 years ago
3 0

<u>Answer:</u>

x = -4

<u>Explanation:</u>

We are given the following statement which we are to translate into a mathematical equation and then solve it:

<em>'nine is seventeen more than two times a number'</em>

Assuming x to be the unknown number, this can be written as:

9 = 2 x + 1 7

Solving for x:

2 x = 9 - 1 7

2 x = - 8

x=\frac{-8}{2}

x=-4

Therefore, the unknown number is -4.

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Are these correct? If not please help me write the correct answer.​
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Answer:

Mostly correct

For Q3, you are doing great, you remembered that negative numbers can happen if the exponent is an odd number.

For Q4, I think you were confused with the fractions,

4(i)

(\frac{2}{3} )^{4} = (\frac{2^{4}}{3^{4}}) = (\frac{16}{81}) =0.198

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