Answer:
Step-by-step explanation:
125.50
+ 75%= 94.12
125.50+94.12=219.62
The square root of 81 is 9. The square root of 25 is 5.
2 more were named Catherine because since he had 6 wives, 2 were named Anne with a different spelling and since Jane is only one wife that means 2 wives plus 1 wife equals 3 but then there was Catherine so 2 wives plus 2 wives equals 4 wives so you subtract 4 wives from 6 wives and you get 2 wives or 2 Catherines.
$1.88 is our amount after the 380% is added!
$1.88 - 380%*x = x
Note, that when you are working with percents in a problem you need to convert the percent into a decimal value in order to properly work with it in an equation like the one above.
So, it will look like this:
$1.88 - 3.8x = x
Now onto explaining how I derived this equation in the first place, because it doesn't help you if you don't know how to do it yourself.
How a percent problem works is if you are taking some original price x, and increasing it by 380% you would take 380% of the item, and then adding it to the item. To take 380% of an item you would need to multiply the number by 380% (3.8). So, if you translate that into math it looks like this:
x + 380%*x = y
Y, in this case is $1.88. In other words it is the price AFTER you've added 380% to the cost. So I started to solve for x by subtracting 380%*x on both sides leaving us with this:
$1.88 - 3.8x = x
We need to solve the equation for x by adding 3.8x on both sides.
$1.88 = 3.8x + x
Combine like terms.
$1.88 = 4.8x
Divide both sides by 4.8.
$1.88/4.8 = x
So our original price is $1.88/4.8!
The question asks for the 380% * x part of the problem.
So we take our answer and multiply it by 3.8.
($1.88/4.8)*3.8 = $1.49 mark up!
Ok I got 32.995 I’m not sure what place you need to round to so I kept that throughout my solving process. I’m not too sure if this is right but here is the work that I did in the picture. I didn’t show the distance formula as I used an online calculator lol.
