A music store marks up the instruments it sells by 30%.

Mathematics

2 answers:

solong [7]2 years ago

8 0

Answer: They will mark it up 13.5$ to 58.5$

Step-by-step explanation:

45 x .3 = 13.5

45 + 13.5 = 58.5

Sphinxa [80]2 years ago

5 0

Answer:

The mark up will be 13.5

Step-by-step explanation:

You might be interested in

Pc Richard and son are selling a drone for 179.99 for 10% off and $20 off to the first 100 customers what’s the price

den301095 [7]

Answer:

The price for the first 100 customers is $142.00.

Step-by-step explanation:

Step 1: 10% of 179.99 = 17.99

Step 2: $179.99 - $17.99 = $162.00

Step 3: $162.00 - $20.00 = $142.00

3 0

3 years ago

I REALLY NEED HELP

garri49 [273]

Look at the picture.

1.
$y=mx+b\\\\m=\dfrac{9}{3}=3\\\\b=4\\\\\boxed{f(x)=3x+4}$

2.
$f(x)=-2x+3\\\\for\ x=-2\to f(-2)=-2\cdot(-2)+3=4+3=7\to(-2;\ 7)\\for\ x=-1\to f(-1)=-2\cdot(-1)+3=2+3=5\to(-1;\ 5)\\for\ x=0\to f(0)=-2\cdot0+3=3\to(0;\ 3)\\for\ x=1\to f(1)=-2\cdot1+3=-2+3=1\to(1;\ 1)$

3.
$y=mx+b\\\\m=\dfrac{3}{6}=\dfrac{1}{2}=0.5\\\\b=-3\\\\\boxed{f(x)=0.5x-3}$
$for\ x=-6\to f(-6)=-6\\for\ x=-2\to f(-2)=-4\\for\ x=0\to f(0)=-3\\for\ x=6\to f(6)=0$