3 years ago

Six candles cost $15.00. How many candles can you buy for $22.50?

Mathematics

2 answers:

il63 [147K]3 years ago

6 0

15.00\ 6= 2.50=1 candle 22.50\2.50= 9 candles

seraphim [82]3 years ago

5 0

9 candles because u have to divide 15 by 6 then divide 22.50 by the answer

You might be interested in

F(x)=x^2 horizontal shift of 3 vertical shift of -2 reflected over the x-axis. Write the equation

Cerrena [4.2K]

$f(x) = -(x-3)^{2} -2$ is the required function.

<u>Step-by-step explanation:</u>

We have to find the transformation after the horizontal and vertical shifts and then reflection over the x-axis for the given function.

$f(x) = x^{2}$

If there is a horizontal shift of 3, then the function becomes, $f(x) = (x-3)^{2}$

If there is a vertical shift of -2, then the function becomes, $f(x) = (x-3)^{2} -2$

The function is reflected over the x- axis then the function becomes,

$f(x) = -(x-3)^{2} -2$

5 0

3 years ago

What is the axis of symmetry for the graph of y-4x=7-x^2

Len [333]

As you may know, the axis of symmetry will be a coordinate off the vertex of the equation, so...

$\bf y-4x=7-x^2\implies y=7-x^2+4x\implies y=-x^2+4x+7
\\\\\\
\textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{llll}
y = &{{ 1}}x^2&{{ +4}}x&{{ +7}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
\\\\\\
\left(-\cfrac{4}{2(-1)}~~,~~7-\cfrac{4^2}{2(-1)} \right)\quad thus\implies \stackrel{\textit{axis of symmetry}}{x=~~~~-\cfrac{4}{2(-1)}}$

7 0

3 years ago

There are 20 students in the classroom. 5 of these students are selected to go to an assembly. how many such selections are poss

Ksju [112]

Order of the people does not affect the total number of ways. Thus, we use combinations.

Total combinations: 20C5 = 15,504 ways.

4 0

4 years ago

George ate 2/3 of container of chinese food. Silvia ate 1/5 of the same container of chonese foos. What fraction of the containe

malfutka [58]

George ate 10/15
Silvia ate 3/15
They ate 13/15 total

3 0

3 years ago