Bill and Amy travel the same distance from home to school of 14.4 kilometers. Amy takes 40 minutes of time to arrive to school which means she has a rate of 14.4 km /40 minutes or 6 meters/ second. Bill takes a total 60 minutes to arrive to school. Hence Bill's rate is equal to 14.4 km/60 minutes or 4 meters/ second.Amy's is 2 m/s faster than Bill's speed, then.
C is what you do when credit cards are involved.
Answer:
![\frac{1}{28}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B28%7D)
Step-by-step explanation:
The result is given by means of some algebraic handling:
![\frac{3}{16}\times \frac{4}{21}](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B16%7D%5Ctimes%20%5Cfrac%7B4%7D%7B21%7D)
- Multiplication of rationals.
- Dividing each term by 2.
- Dividing each term by 2.
- Dividing each term by 3.
Answer:
A
Step-by-step explanation:
We can turn this word problem into the following equation:
x^2 + 85 = (x - 17)^2
x^2 + 85 = x^2 - 34x + 289
-85 -85
_______________________
x^2 = x^2 - 34x + 204
+34x +34x
_______________________
x^2 + 34x = x^2 + 204
-x^2 -x^2
____________________
34x = 204
Divide 34 on both sides
x = 6.
The number is 6.