The correct answer to this is: Y=47
Find the difference in speed:
2.2 - 1.4 = 0.8 m/s
Now divide the difference in speed by time:
0.8 m/s / 4 seconds = 0.2 m/s/s
First, multiply both sides by 88, because you can divide 88 by 22. That final would be 3k*88/22 = -13. Simplified, that would be 12k = -13. Divide both sides by 12, making the final answer k = -12/13, or in decimal form 1.08333...
Remember that a reciprocal are when you switch the numerator and denominator, like they trade spots so the reciprocal is 3/11
Answer:
If her sister is 34 then Kelly will have to be 28
