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igor_vitrenko [27]

3 years ago

10

Janet sells birthday cakes at her bakery. If she sells a cake for $45, and there is 8% sales tax, what is the total cost of the

cake? Round your answer to the nearest cent.

2 answers:

Free_Kalibri [48]3 years ago

8 0

Answer:

48.6$

Step-by-step explanation:

Allisa [31]3 years ago

5 0

Answer:

Step-by-step explanation:

There are 28 students in a room. The ratio of boys to girls cannot be which of the above.

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How do you know if when he sees you for the first time than he likes you?

Tamiku [17]

Answer:

BRUH

Step-by-step explanation:

BRUH

6 0

3 years ago

Read 2 more answers

Use the Pythagorean theorem to obtain the function D(x) for the length of the diagonal of a double square of width x.

Yuri [45]

Answer:

$D(x)= x\sqrt{2}$

Step-by-step explanation:

Given

$Side = x$

Required

Represent the diagonal as a function

Using Pythagoras theorem, the diagonal is:

$D^2= Side^2 + Side^2$

Substitute x for Side

$D^2= x^2 + x^2$

$D^2= 2x^2$

Take the square root of both sides

$D= \sqrt{2x^2$

Split

$D= \sqrt{2} * \sqrt{x^2$

$D= \sqrt{2} * x$

$D= x\sqrt{2}$

Express as a function.

$D(x)= x\sqrt{2}$

4 0

3 years ago

If the population of a country increases at a rate of 1.5% annually, and its current population is 430,000, how many years will

Alchen [17]

For this case we have an equation of the form:
$y = A * (b) ^ t
$
Where,
A: initial amount
b: growth rate
t: time in years.
Substituting values we have:
$y = 430000 * (1,015) ^ t
$
By the time the population is triple we have:
$3 * 430000 = 430000 * (1,015) ^ t
$
Rewriting we have:
$3 = (1,015) ^ t
$
Clearing t we have:
$t = log1.015 (3)

t = 73.78876233

t = 73 years$
Answer:
It will take for the population to triple about:
t = 73 years

3 0

3 years ago

The expression 148 – 24d gives the number of pizzas a store has in stock, where d is the number of days. How many pizzas will th

Feliz [49]

Explanation

A function is defined as a relation between a set of inputs having one output each,in this case our independent variable is the number of days( d) and the dependent variable would be the number of pizzas

so

Step 1

let the function

$\begin{gathered} P=148-24d \\ where\text{ P is the number of pizzas } \\ and\text{ d is the number of days} \end{gathered}$

therefore, to know the number of pizzas are in the stock after 5 days we need to evaluate the equation for d=3

so

$\begin{gathered} P=148-24d \\ let\text{ d=5 and evaluate} \\ P=148-24(5) \\ P=148-120=28 \\ P=28 \end{gathered}$

so, after five day there willbe 28 pizzas in stock

I hope this helpsyou

6 0

1 year ago

Caroline bakes brownies to give to her friends. She starts with 48 brownies and gives a brownie to 6 friends each hour until she

Vlad [161]

y= -6x+48

you start at 48, then you keep going down 6 and over 1 until you get the y value is at 0. This takes 8 times to get this.

hope this helps

5 0

3 years ago