Answer:
<h2>Pete played 1.5 times the number of matches that Jack played.</h2><h2 />
Step-by-step explanation:
<u>Pete played 18 tennis matches in a week.</u>
P = 18
<u>Jack played 6 fewer matches than Pete. </u>
J = P - 6
J = 18 - 6
J = 12
<u>How many times the number of matches pete played is the number of matches jack played?</u>
<u />
18 / 12 = 1.5
Pete played 1.5 times the number of matches that Jack played.
You get everything you need from factoring the last expression:
The left side is a difference of squares, and we get another difference of squares upon factoring. We end up with
Plug in everything you know and solve for 
:
i read in class 4 but I don't explain the answer
2/sqrt 5
by rationalising the denominator,
2/sqrt 5 × sqrt 5/sqrt 5
= 2(sqrt 5)/sqrt 5(sqrt 5)
= 2 sqrt 5/5
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hope this helps! :))))
