All categories

3 years ago

The price of a calculator has decreased from $200 to $150. What is the percentage of decrease?

2 answers:

8 0

The percent of decrease will be 255 because if you subtract 200 and 150 you get 50 which you multiply by 100 and divide that by 200 and you get 25%. B) 25%

daser333 [38]3 years ago

7 0

B 25 percent

200 * .25 = 50
200-50 = 150

You might be interested in

Easy volume problem.

bagirrra123 [75]

Volume = l×b×h = 48×40×30 = 57600 cm²

5 0

3 years ago

Read 2 more answers

The skateboard ramp has a width of 20 and a height of 16. What is its slope ( not to scale) ?

slega [8]

Answer:

25.61 ?

Step-by-step explanation:

use Pythagoreans theorem

a^2+b^2=c^2

20^2+16^2=656

sqrt 656=25.61

4 0

2 years ago

Recall the chapter example which described the fact that the mean IQ in large, diverse populations is 100 and the standard devia

vova2212 [387]

Answer:

The margin of error for the 99% confidence level for this sample is ±2.23.

None of the given figures is close to the answer:

E. None of the above

Step-by-step explanation:

margin of error (ME) around the mean can be calculated using the formula

ME= $\frac{z*s}{\sqrt{N} }$ where

z is the corresponding statistic of the 99% confidence level (2.576)

s is the population IQ standard deviation (15)

N is the sample size (300)

Using these numbers we get:

ME= $\frac{2.576*15}{\sqrt{300} }$ ≈ 2.23

7 0

2 years ago

Brainliest? :(

Svetlanka [38]

Answer:

$(f\cdot g)(x)=2x^2+10x+12$

$(f-g)(x)=-x-1$

$(f+g)(1)=10$

Step-by-step explanation:

$\tt f(x)=x+3$

$\tt g(x)=2x+4$

$(f\cdot g)(x)=f(x)\cdot g(x)=(x+3)(2x+4)=2x^2+4x+6x+12$

$=2x^2+10x+12$

$(f-g)(x)=f(x)-g(x)=x+3-(2x+4)=x+3-2x-4$

$=-x-1$

$(f+g)(1)=f(1)+g(1)=1+3+2(1)+4$

$=4+2+4=10$

7 0

2 years ago

Dwayne brought 5 yards of wrapping paper how many inches of wrapping paper did he buy

Mademuasel [1]

It's 180 inches of wrapping paper.

8 0

2 years ago

Read 2 more answers