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Alla [95]
2 years ago
14

Evaluate \dfrac {15}k

Mathematics
1 answer:
Georgia [21]2 years ago
6 0

Answer:

5

Step-by-step explanation:

We desire to evaluate the fraction: \dfrac{15}{k} when k=3.

This is a simple substitution, so what is required is

  • Replace k with the given number
  • Simplify the resulting expression

Therefore, when k=3

\dfrac{15}{k}=\dfrac{15}{3}=5

You can try the same for any value of k.

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How do you find the f(x) inverse using fractions?
fenix001 [56]
For example.. 1) switch places of x and y. x=3y+1 x=3 y +1
2) try to solve for y. so multiply the denominator by x to get rid of it
3) after multiplying, ur left with xy+x=3 x y + x=3
4) that converts to 2xy= x y =3
5) get rid of 2x on left by placing it on the right
6) convert y to inverse function
4 0
2 years ago
At a carnival, 700 tickets were sold for a total
Diano4ka-milaya [45]

Answer:

The adult tickets are <u>400</u> and the children tickets are <u>300</u>.

Step-by-step explanation:

Given:

At a carnival, 700 tickets were sold for a total  amount of $5500. An adult ticket cost $10   and a children's ticket cost $5.

Now, to find the  number of adult tickets and the number of  children's tickets sold.

<em>Let the number of adult tickets be </em>x.<em />

<em>And let the number of children tickets be </em>y.<em />

So, the total number of tickets sold:

x+y=700\\\\y=700-x\ \ \ ....(1)

Now, the total amount of tickets:

x(10)+y(5)=5500

Substituting the value of y from equation (1):

x(10)+(700-x)(5)=5500\\\\10x+3500-5x=5500\\\\5x+3500=5500

<em>Subtracting both sides by 3500 we get:</em>

<em />5x=2000<em />

<em>Dividing boths sides by 5 we get:</em>

x=400.<u />

<u>The number of adult tickets = 400.</u>

Now, substituting the value of x in equation (1) we get:

y=700-x\\\\y=700-400\\\\y=300.

<u>The number of children tickets = 300.</u>

Therefore, the adult tickets are 400 and the children tickets are 300.

8 0
3 years ago
Which function is represented by the graph?
denis-greek [22]

Answer:

It is (D)

f(x) =  \frac{ - 1}{2} x + 6

Step-by-step explanation:

I hope that is useful for you

4 0
2 years ago
I need help with this math problem
Alex17521 [72]

your answer is (1,3) but positive

6 0
2 years ago
10. Use graphing to find the solutions to the system of equations.<br> - x² + y = 1<br> -x+y=2
KIM [24]

Answer:

The equations that can be graphed are;

y₁=log(2x+1)  and y₂=3x-2

Step-by-step explanation:

8 0
10 months ago
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