Step-by-step explanation:
convert decimal to fraction which is -(17/4) 2 to the second power, use exponent rules which is raise a fraction to a power, raise the numerator and the denominator to that power, and you get 289/16 more effective use 18 1/6
Answer: $23
Step-by-step explanation:
1) 25-8=17
2) 17-4= 13
3) 13+10= 23
Matthew has $23 now
To solve this, create an equation that follows 45% of a value is 18. This would look like x*.45=18. Now, solve for x, x*.45=18, divide by .45, x=18/.45=40, making your value 40. To check, plug in your value to the equation 40*.45=18 and see if it stays true.
The numerator and denominator can be divided by 4 to get 12/25.
48 / 4 = 12
100 / 4 = 25
If you choose 10 swimmers and 4 are Stingrays, you can say that Stingrays make up roughly 40% of the swimmers. If 20 Stingrays make up 40% of all the swimmers, we just have to find what number 20 is 40% of. That’s easy enough by cross multiplication:
20/x = 40/100
20/x = 4/10
20/x = 2/5
x = 50.
Double check by multiplying 50 * 0.4. Since 50 * 0.4 = 20, we know we have the right answer. There are about 50 swimmers on this team.
