All categories

2 years ago

Ed buys a vase for £24 and adds 25% onto the price before putting it into his shop window.

Mathematics

1 answer:

stealth61 [152]2 years ago

7 0

25% of 24 = 6

Therefore 24+6=$30 is the price on the price tag

You might be interested in

Which expression is equivalent to (^5sqrt3^2)^1/3

11Alexandr11 [23.1K]

Answer:

3^2/15

Step-by-step explanation:

(^5sqrt3^2)^1/3

(3^2/5)^1/3

multiply the powers

3^2/5*1/3

3^2/15

6 0

3 years ago

The diffrence of a number m and 30 is 10

viktelen [127]

M - 30 = 10

so the number has to be 10 more than 30.

30+ 10 = m

m = 40

8 0

3 years ago

How many solutions do these equations have

Arlecino [84]

Answer:

$\large\boxed{\bold{one\ solution}\ (1,\ -4)\to x=1,\ y=-4}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=2x-6\\y=-x-3\end{array}\right\\\\\text{These are linear functions. We only need two points to draw a graph.}\\\\\text{Choice two values of x, substitute to the equation,}\\\text{and calculate the values of y.}\\\\y=2x-6\\for\ x=0\to y=2(0)-6=0-6=-6\to(0,\ -6)\\for\ x=3\to y=2(3)-6=6-6=0\to(3,\ 0)\\\\y=-x-3\\for\ x=0\to y=-0-3=0-3=-3\to(0,\ -3)\\for\ x=-3\to y=-(-3)-3=3-3=0\to(-3,\ 0)\\\\\text{Look at the picture}$

$\text{The intersection of the line is the solution of the system of equations:}\\\\(1,\ -4)\to x=1,\ y=-4$

7 0

3 years ago

2. Deshay borrowed $400 from the bank for 1 year. The bank charges 14% interest

Papessa [141]

Answer:

The bank charged 56 dollars in interest

7 0

3 years ago

A culture is grown with a population of 45 million cells. The cell population is found to double every hour. What will the popul

Alexandra [31]

45 million * $2^{4}$ = 45million * 16 = 720million

Or you can use
$y=Ae^{kt}$
A is equal to 45 million
To find the rate, k, we can plug in:
$90million=45million*e^{k*1}
$
$2=e^{k}$
$k=ln(2)$
$y=4.5*10^{7}*e^{t *ln2}$
Knowing that t = 4
$y = 4.5*10^{7}*e^{ln(2)*4}
$
$y = 720 million$

6 0

3 years ago

Read 2 more answers