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Ostrovityanka [42]
3 years ago
13

What is the value of x?

Mathematics
2 answers:
german3 years ago
3 0

Answer:

20

Step-by-step explanation:

3x+50=6x-10 (vertically opposite angles)

50+10=6x-3x

60=3x

60/3=x

x=20

nekit [7.7K]3 years ago
3 0

Answer:

x = 20

Step-by-step explanation:

6x - 10 = 3x + 50       {Vertically opposite angles}

6x        = 3x + 50 + 10     {Combine like terms}

    6x    = 3x + 60        {Subtract 3x from both sides}

6x -3x  = 60

     3x = 60         {Divide both sides by 3}      

        x = 60/3

x = 20

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If f(x)=2x−3 and g(x)=4x+5, what is (f⋅g)(x)?
ludmilkaskok [199]

Answer:

(f⋅g)(x)=8x^2−2x−15

Step-by-step explanation:

To find the expression (f*g)(x), multiply f(x) into g(x) using the distribution property.

(f*g)(x) = (2x - 3)(4x + 5) = 8x² - 12x + 10x - 15 = 8x² - 2x - 15

5 0
3 years ago
Jackson’s age was 2/5 of the age he will be 20 years from now 7 years ago. How old is Jackson now?
bonufazy [111]
<h3>The present age of Jackson is 25 years old</h3>

<em><u>Solution:</u></em>

Let the present age of Jackson be "x"

Therefore

Jackson's age 7 years ago = x - 7

And, Jackson's age after 20 years = x + 20

From given question,

Jackson’s age was 2/5 of the age he will be 20 years from now 7 years ago

\frac{2}{5} \times (x + 20) = x - 7\\\\2(x + 20) = 5(x - 7)\\\\2x + 40 = 5x - 35\\\\5x - 2x = 40 +35\\\\3x = 75\\\\Divide\ both\ sides\ by\ 3\\\\x = 25

Thus present age of Jackson is 25 years old

4 0
3 years ago
If you roll a dice 12 times what is the probability of rolling a 2
Andrei [34K]
The probability of getting a two is 2/12. 
5 0
3 years ago
Can you please solve this pllleeaasseee??
gizmo_the_mogwai [7]
I think she can use it 8 times
6 0
3 years ago
Read 2 more answers
Round to the nearest whole number 8 5/6
Aleks04 [339]
The rule for rounding is that if the fraction is less than 1/2, we round down; and if the fraction is more than 1/2, we round up.

Because 5/6 is a greater fraction than 1/2, we must round the existing whole number (8), up.

8 5/6 rounded to the nearest whole number is 9.
3 0
3 years ago
Read 2 more answers
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