Use dimensional analysis:
Since we multiplied a numerator and a denominator by centimeters, we are only left with meters.
This answer is already is three significant figures by default.
Answer:
2 outfits
Step-by-step explanation:
first you have the total amount of money he has.
next subtract the amount of money he spends on the new bicycle
500-273.98=226.02
next find the total cost of the 3 bicycle reflectors
7.23 times 3 = 21.69
Subtract that total from the remaining amount of money left
226.02 - 21.69 = 204.33
Then subtract the helmet from the remaining money
204.33 - 42.36 = 161.97
now divide the remaining money by 78.12 to find out how many outfits he can buy
161.97 / 78.12 = around 2.07
So the answer is he can only buy 2 outfits with the remaining money
(you can not buy 2.07 outfits)
hope this helps and was what you were looking for
The equation for standard deviation is finding the mean of the numbers, subtracting each of the initial numbers by the mean, squaring each of the results, finding the mean of these results added together, then finding out the square root of the results added together.
The mean of 175 and 165 is 170, subtract 175 and 165 by 170, and you get 5 and -5 respectively. Then, square the results and you get 25 and 25.
Add the two numbers together (25 & 25) then find the square root of it, which is <span>7.07106781187, simplified to 7.07.</span>
4.4354 rounded to 2 decimal places is 4.44
28(7) + 30(25) = 946 square inches
hope this helps!!
