All categories

2 years ago

A necklace is regularly sold for $18.00. The sore advertises a

Mathematics

1 answer:

Semenov [28]2 years ago

5 0

Answer: $17.91

Step-by-step explanation:

18.00 - 15% discount = 17.85

17.85 + 6% tax = $17.91

You might be interested in

Help me I don't know what is 10=n+19

Orlov [11]

Answer: n=-9

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Write a situation to describe the equation below: C=50+16x

kotykmax [81]

Ryan has 50 cookies if he wants to buys x amount of 16 cookies, how many cookies will he have c= cookies

7 0

2 years ago

one rectangle has a length 10 cm and width 5 cm the second rectangle has length 12 cm and width 4 cm are the two rectangles simi

tatuchka [14]

Answer:

No, they aren't similar.

Step-by-step explanation:

Let's take the proportionality of their sides to check whether they are similar or not:

$\frac{10}{5} = \frac{12}{4}$

=> 2 ≠ 3

So, they are not similar.

8 0

2 years ago

−7x−6y=2 7x+4y=−6 solve for x and y

ikadub [295]

Answer:

$\mathrm{The\:solutions\:to\:the\:system\:of\:equations\:are:x=-2,\:y=2}$

Step-by-step explanation:

$\begin{bmatrix}-7x-6y=2\\ 7x+4y=-6\end{bmatrix}$

$\mathrm{Substitute\:}x=-\frac{2+6y}{7}$

$\begin{bmatrix}7\left(-\frac{2+6y}{7}\right)+4y=-6\end{bmatrix}$

$\begin{bmatrix}-2-2y=-6\end{bmatrix}$

$\mathrm{For\:}x=-\frac{2+6y}{7}$

$\mathrm{Substitute\:}y=2$

$x=-\frac{2+6\cdot \:2}{7}\\\\x=-2$

5 0

1 year ago

What is an imaginary number?

trapecia [35]

An imaginary number is a complex number that can be written as a real number multiplied by the imaginary unit i, which is defined by it's property i² = −1. The square of an imaginary number bi is −b². For example, 5i is an imaginary number, and it's square is −25.

8 0

2 years ago