I think john is 10 years old hope that helps.
1. Selena has to walk <em>to</em> school and <em>from </em>school.
That means that each day, she walks the distance from her house to the school twice.
If she walks 2/3 in a day, the distance must be half of that, or 1/3.
2. 3 batches = 3/4 cup.
Divide each side by 3.
1 batch = 1/4 cup.
3. 5 eighths minus 1 eighth = 4 eighths.
Since we have the same bottom number, we don't need to do anything special. This problem is just the same as something like <em>5 apples - 1 apple.</em>
4. First, let's convert 6 into thirds.
6 × 3 = 18
Therefore, 6 = 18/3.
Add 6 and 2/3.
18/3 + 2/3
20/3
5. To be a composite number, a number needs to be divisible by something besides 1 or itself.
Check your divisibility rules...
39 is divisible by 3 (39 ÷ 3 = 13), so this could be his house number.
6. 12 cupcakes - 9 chocolate = 3 vanilla.
3 vanilla cupcakes out of 12. (3/12)
We can simplify this fraction. 3 and 12 are both divisible by 3.
3/12 = 3÷3 / 12÷3 = 1/4
Find the difference between prices: 4.86-4.50=.36
Divide the difference (.36) by the original price: .36/4.50=.08
Change to a percentage: 8%
The sales tax is 8% :)
Answer:
the difference is 143
explanation
How to Find the Difference between Two Numbers. To find the difference between two numbers, subtract the number with the smallest value from the number with the largest value. The product of this sum is the difference between the two numbers. Therefore the difference between 45 and 100 is 55.
so 120-(-23) is 141