All categories

3 years ago

A backpack normally costs 25 dollars but it is on sale for 21 dollars. What percentage is the discount?

Mathematics

1 answer:

Fofino [41]3 years ago

5 0

The packpack is 84% off.

You might be interested in

Johanna graphed the number of calls she made during one day. How many calls were made before 6 p.m.?

My name is Ann [436]

Answer:

I would say 8

Step-by-step explanation:

I counted.

3 0

4 years ago

Find the average value of the function on the given interval.<br> f(x)=(2x-1)1/2; [1,13]

Leni [432]

Answer:

The average value of the function on the given interval 6.5.

Step-by-step explanation:

Consider the given function is

$f(x)=\dfrac{2x-1}{2}$

We need to find the average value of the function on the given interval [1,13].

$f(x)=\dfrac{2x}{2}-\dfrac{1}{2}$

$f(x)=x-0.5$

The average value of the function f(x) on [a,b] is

$Average=\dfrac{1}{b-a}\int\limits^b_a {f(x)} \, dx$

Average value of the function on the given interval [1,13] is

$Average=\dfrac{1}{13-1}\int\limits^{13}_{1} {x-0.5} \, dx$

$Average=\dfrac{1}{12}[\dfrac{x^2}{2}-0.5x]^{13}_{1}$

$Average=\dfrac{1}{12}[\dfrac{(13)^2}{2}-0.5(13)-(\dfrac{(1)^2}{2}-0.5(1))]$

$Average=\dfrac{1}{12}[78-0]$

$Average=6.5$

Therefore, the average value of the function on the given interval 6.5.

6 0

3 years ago

Can someone please answer this thanks

Alex

I believe the answer is B

4 0

3 years ago

Read 2 more answers

Sam the jeweler bought 126 beads and 36 strings from a shop. He wants to make a certain

Valentin [98]

Answer:

n numbers, because we can use variables like l and w to represent the unknown length and width. Many expressions have more than one variable in them. The volume of a box without a lid is given by the formula V = 4x(10−x)2, where x is a length in inches and Rochelle has invested $2500 in a jewelry making kit.

Step-by-step explanation:

8 0

3 years ago

Which numbers below belong to the solution set of the inequality? <br><br> x+16>51

posledela

All real numbers greater than 35, x has to be greater than 35 because 35+16 = 51 and it asks for x + 16 to be greater than 51 not equal to 51.

5 0

4 years ago