Step-by-step explanation:
move the denominators across sides
4x-8 = 3x+15
x=23
Answer:
You will save $20.
Step-by-step explanation:
<u>IMPORTANT FORMULA: TO CONVERT A NUMBER TO A PERCENT, YOU HAVE TO MULTIPLY BY 100. TO CONVERT A PERCENT TO A NUMBER, YOU HAVE TO DIVIDE BY 100. </u>
1) Some percent of an amount is what?
Using the formula above, I can conclude that 40% is equal to 40/100=4/10=2/5
2) Translate into an equation.
It is important to keep in mind that we are trying to find <u>40% of $50</u> in order to find out how much money will be saved.
In the above step, we already found that 40% = 2/5.
I also know that, in mathematics, the word "of" means multiplication.
Therefore, I am trying to find 40% of $50 <em><u>is the same as</u></em> 2/5 * $50.
2/5 * $50 = x ------ (x represents the money saved)
3) Solve for variable.
$20 = x
4) Write a sentence to answer the question.
You will save $20.
9.75%=9.75 / 100
=0.0975
=0.0975 / 1 × 10000 / 10000
=975 / 10000
=39 / 400
Hope this helps :)
Continent X would be 6120000
Continent Y would be 5480000
Continent X is larger
It is 640000 or 6.4x20^5 is greater