The function j(x)= 39x represents the number of jumping jacks (x) you can do in x minutes . How many jumping jacks can you do in
2 answers:
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Answer:
Ok so first you would have to turn them into improper fractions which is
3 =
and 4
=
So now that you have made them both improper fractions you have to find common denominators.
To find common denominators you must multiply both the numerator and the denominator by the same thing. Since your oposing fraction has a denominator of 5 you can know that a even number wont go in an odd number so take and mutiply both numbers by 2 and get
. Then mutiply both numbers in
by 5 to get a common denominator.
=35 - 44 = -9 so your answer is
Step-by-step explanation:
