Joey has 2 tens. He wants to trade the tens for ones. How many ones should Joey get?
1 answer:
You might be interested in
Answer:
See explanation and picture attached
Step-by-step explanation:
A set can be described by<em> listing all of its elements</em>.
For example, A = { 2, 4, 6, 8}, which we read as
“A is the set whose elements are 2, 4, 6 and 8”.
The four elements of the set are separated by commas, and the list is enclosed between curly brackets.
A <em>set can also be described by writing a description of its elements</em> between curly brackets.
Thus the set A above can also be written as
A = { even natural numbers less than 9 }, which we read as
“A is the set of even natural numbers less than 9”.
A set can also be described graphically by using Venn diagrams, which are simply circle shaped drawings showing the elements inside.
In our case U={1,2,3,4,5,6,7,8,9,10,11,12} A={1,2,3,4,6,12} B={1,2,4,8}
See picture attached for the answer.
First things first, write out your equation without the substitution.
2x+ 2y= 10
Now, put in the substitution.
2x+ 2• 2= 10
Combine like terms.
2x+ 4= 10
Now that your equation it simplified, you need to reverse the problem and put everything on the other side.
2x+ 4= 10
- 4 - 4
2x = 6
2x=6
— —
2 2
X= 3
So the final answer is x=3
2x+ 2y= 10
Now, put in the substitution.
2x+ 2• 2= 10
Combine like terms.
2x+ 4= 10
Now that your equation it simplified, you need to reverse the problem and put everything on the other side.
2x+ 4= 10
- 4 - 4
2x = 6
2x=6
— —
2 2
X= 3
So the final answer is x=3