What is the value of the expression: -9.2 + (-7)?

A new shopping mall records 150 total shoppers on their first day of business. Each day after that, the number of shoppers is 15

Wewaii [24]

The number of shoppers is an illustration of an exponential function.

The expression for the number of shoppers is: $\mathbf{f(n) = 150(1.15)^n}$

The given parameters are:

$\mathbf{a = 150}$ -- the number of shoppers on the first day of business

$\mathbf{r = 15\%}$ --- the rate

Because, the number of shoppers increases each day, the number of shopper on a certain day is:

$\mathbf{f(n) = a \times (1 + r)^n}$

Substitute 15% for r

$\mathbf{f(n) = a \times (1 + 15\%)^n}$

Express percentage as decimal

$\mathbf{f(n) = a \times (1 + 0.15)^n}$

$\mathbf{f(n) = a \times (1.15)^n}$

Substitute 150 for a

$\mathbf{f(n) = 150 \times (1.15)^n}$

$\mathbf{f(n) = 150(1.15)^n}$

Hence, the expression for the number of shoppers is: $\mathbf{f(n) = 150(1.15)^n}$

Read more about exponential functions at:

brainly.com/question/11487261

4 0

3 years ago

Select the graph that represents the given set. (Click on the graph until the correct one is showing.)

Korvikt [17]

Answer:

Hi! The answer is in the pic below!!

Step-by-step explanation:

☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆

☆Brainliest is greatly appreciated!☆

Hope this helps!!

- Brooklynn Deka

6 0

3 years ago

Help please. I'm stuck.

sweet-ann [11.9K]

Answer:

15

Step-by-step explanation:

Each bracelet takes 28+10 = 38 elastic bands. If you have 600 bands, you can make ...

600/38 = 15 30/38 . . . bracelets

You can make 15 complete bracelets.

__

You will have 30 elastic bands left over.

3 0

2 years ago

A movie club charges a one-time membership fee of $25. It allows members to purchase movies for $7 each. Another club does not c

sashaice [31]

Answer: $$5$$ movies

Step-by-step explanation: Given: A movie club, one time fee

=

$

25

, movies

=

$

7

2nd club,

$

0

fee, movies

=

$

12

Cost equations for each club:

club 1:

C

1

=

25

+

7

M

club 2:

C

2

=

12

M

For the clubs cost to be equal:

C

1

=

C

2

25

+

7

M

=

12

M

Subtract

7

M

from both sides:

25

=

5

M

Divide by

5

:

M

=

25

5

=

5

movies

CHECK:

C

1

=

25

+

7

⋅

5

=

25

+

35

=

$

60

C

2

=

12

⋅

5

=

$

60

7 0

2 years ago

Read 2 more answers

Find two positive numbers whose difference is 30 and whose product is 2584.

kvasek [131]

Answer:

$38$ and $68$ .

Step-by-step explanation:

Let $x$ be the smaller one of the two number.

$x$ must be a positive integer. The other number would be $(x + 30)$ .

The question states that the product of the two numbers is $2584$ . In other words:

$x\, (x + 30) = 2584$ .

Rearrange this equation and solve for $x$ :

$x^{2} + 30\, x - 2584 = 0$ .

The first root of this quadratic equation would be:

$\begin{aligned}x_{1} &= \frac{(-30) + \sqrt{30^{2} - 4 \times (-2584)}}{2} \\ &= \frac{(-30) + \sqrt{900 + 10336}}{2} \\ &= \frac{(-30) + \sqrt{11236}}{2} \\ &= \frac{(-30)}{2} + \sqrt{\frac{11236}{2^{2}}} \\ &= (-15) + \sqrt{2809} \\ &= (-15) + 53 \\ &= 38 \end{aligned}$ .

Similarly, the second root of this quadratic equation would be:

$\begin{aligned}x_{1} &= \frac{(-30) - \sqrt{30^{2} - 4 \times (-2584)}}{2} \\ &= (-15) - 53 \\ &= -68\end{aligned}$ .

Since the question requires that both numbers should be positive, $x > 0$ . Therefore, only $x = 38$ is valid.

Hence, the two numbers would be $38$ and $(38 + 30)$ , which is $68$ .

6 0

3 years ago

Read 2 more answers