$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!
Answer:
<h2>Jimmy is 16 old.</h2>
Step-by-step explanation:
J - the age of Jimmy John
50 - the age of Papa John
3J + 2 - the age of Papa John
The euaqtion:
3J + 2 = 50 <em>subtract 2 from both sides</em>
3J + 2 - 2 = 50 - 2
3J = 48 <em>divide both sides by 3</em>
3J/3 = 48/3
J = 16
Solution:
As given , g(x)= f(x) + k --------(1)
As also given : f(x) = 
(x+2)
g(x) = (x+5)
Putting the value of f(x) and g(x) in equation (1).
→ (x+5) = (x+2) + k
→ ![\frac{1}{3}[x+5-x-2]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D%5Bx%2B5-x-2%5D)
= k
→ k = 
So , the value of k is 1.
Step-by-step explanation:
hey there....I only knew the last question
Answer:
660
Step-by-step explanation:
First, let's find the prime factorization for both numbers.
132 = 11 x 12
12 = 3 x 4
4 = 2 x 2
<u>132 = 2 x 2 x 3 x 11</u>
60 = 5 x 12
12 = 3 x 4
4 = 2 x 2
<u>60 = 2 x 2 x 3 x 5</u>
Now, to find the lowest common multiple, we just need to multiply each number the most times it is seen in either number.
<u>132 = 2 x 2 x 3 x 11</u>
<u>60 = 2 x 2 x 3 x 5</u>
The first number is both is 2, which appears at most twice in either list so we will multiply two 2s to find the LCM.
Both numbers also have at most one 3, one 5, and one 11, so to find our LCM, we just need to multiply all these numbers together:
2 x 2 x 3 x 5 x 11 = 660
The LCM of 132 and 60 is 660.
Hope this helped!
