Ask question

Ask question

All categories

SCORPION-xisa [38]

2 years ago

11

Raffle tickets are being sold for a fundraiser. The function a(n) relates the amount of money raised to the number of tickets so

ld, n.
It takes as input the number of tickets sold and returns as output the amount of money raised.

a(n) = 3n – 15

Which equation represents the inverse function n(a), which takes the money raised as input and returns the number of tickets sold as output?

2 answers:

Ronch [10]2 years ago

8 0

Answer:

n (a)=a+15/3 apex

Step-by-step explanation:

Vladimir [108]2 years ago

7 0

If the function is
A(n) = 4n -25

and we wish to get the inverse function N(a)

We let
A(n) = a
n = N(a)

Plugging in the values
a = 4 N(a) - 25

Arranging the equation:
4 N(a) = a + 25
N(a) = (a + 25) /4

The answer is
N(a) = (a + 25) /4

You might be interested in

1/3 divided by 4

Nookie1986 [14]

1. 1/3 divided by 4 is 0.0833
2. 2/5 divided by 4 is 0.1
3. 4/7 divided by 4 is 0.1428
4. 2/5 divided by 3 is 0.1333
5. 5/6 divided by 5 is 0.1666
6. 5/8 divided by 10 is 0.0625

4 0

2 years ago

Divide 6K2 - 15k-5 by 3k

icang [17]

Answer:

Step-by-step explanation:

6k^2

------- = 2k; and:

3k

-15k

------- = -5

3k

-5 cannot be evenly divided by 3k, so there's a remainder instead.

6k^2 - 15k - 5

-------------------- = 2k -5 with remainder -5.

3k

4 0

3 years ago

Read 2 more answers

PLEASE HURRY AND SOLVE!!!!

MissTica

Answer:

The constant of proportionality is 6

Step-by-step explanation:

Recall the equation for direct variation is $y=kx$ where $y$ varies directly with $x$ and $k$ is the constant of proportionality. If we take any listed coordinate point, we can determine the value of $k$ . I will use (20,120) as an example:

$y=kx\\\\120=k(20)\\\\6=k$

Therefore, the constant of proportionality is 6

6 0

2 years ago

If EF - 3x - 11, FG = 4x-10, and EG - 28, find the values of x, EF, and FG. The drawing is not to scale.

Gnom [1K]

Answer:

Part 1) $x=7$

Part 2) $EF=10\ units$

Part 3) $FG=18\ units$

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the value of x

we know that

$EG=EF+FG$ ---> by addition segment postulate

we have

$EG=28\ units\\EF=3x-11\\FG=4x-10$

substitute

$28=(3x-11)+(4x-10)$

solve for x

$28=7x-21$

$7x=28+21$

$7x=491$

$x=7$

step 2

Find the value of EF

$EF=(3x-11)$

substitute the value of x

$EF=3(7)-11=10\ units$

step 3

Find the value of FG

$FG=(4x-10)$

substitute the value of x

$FG=4(7)-10=18\ units$

4 0

3 years ago

Which system of linear inequalities is represented by the graph?

masha68 [24]

For the red line, we have:

gradient ( $m$ ) = 1/3
y-intercept = 3

Equation of straight line is given by $y=mx+c$ , where $m$ is the gradient and $c$ is where the line intercept the y-axis

So we have, $y= \frac{1}{3}x+3$

The shaded part is above the line, hence the first inequality is
$y \geq \frac{1}{3}x+3$

The black line, we have
gradient, $(m)$ = 3
y-intercept = -2

$y=mx+c$
$y=3x-2$ , rearranging gives
$3x-y=2$

The shaded region is to the right of the line, hence the inequality is
$3x-y\ \textgreater \ 2$

Note: The first option should be the correct answer but the inequality sign for <span>y > 1/3x + 3 should be </span> $\geq$

6 0

2 years ago

Read 2 more answers