35% of 20 would be 7
You can get 10% by dividing the number by 10.
As 10% is 2 multiplied by 3 is 6
5% is half of the 10% we have already found.
6 plus the 5% which is 1 equals 7

20 divided by .35 is 7.
When you want to divide by decimals you can turn them into whole numbers by multiplying as long as you divide them at the end.
0.35 x 100 equals 35
so if you were to do 20 x 35 which equals to 700 and divide it by 100, since we multiplied by 100, you would get an answer of 7.

8 0

4 years ago

You estimate that a kitten weighs 8 pounds. The actual weight of the kitten is 6 pounds. Find the percent error. Round your answ

densk [106]

To find that , divide the estimate by the actual weight and multiply by 100.
8/6*100=133.33%(rounded)
Therefore the percent error is 133.33%.

3 0

4 years ago

Read 2 more answers

What is the amplitude of y = 4sin3x? 1/2 2 3 4

liubo4ka [24]

The most generic sine function you can write is

$y = A\sin(\omega x + \phi) + k$

Of all these constant, $A$ affects the amplitude, $\omega$ affects the wave length, $\phi$ and $k$ cause horizontal/vertical translation.

In your case, $A = 4,\quad \omega = 3,\quad \phi = k = 0$

And we are interested in the amplitude, so we focus on $A = 4$

The amplitude of the standard sine function is 1, so when you multiply by $A$ , the new amplitude is $A$ itself. In our case $A = 4$ , so the amplitude is 4.

5 0

3 years ago