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butalik [34]
2 years ago
13

7x-49=y Solve for x?

Mathematics
1 answer:
nika2105 [10]2 years ago
4 0
7x - 49 = y
Add 49 to both sides
7x = y + 49
Diving both sides by 7
x =(y + 49)/7
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Insert brackets to make this calculation right 4x2+5-3=
pentagon [3]
Salutations!

Insert brackets to make this calculation right 4x2+5-3

The brackets should be inserted outside 2+5. If you add brackets outside teh rest of the numbers the calculation would not make sense.

4 × (2 + 5) - 3

Hope I helped (:

have a great day!
8 0
3 years ago
If f(7)=22, then f^-1(f(7))=?<br> Please help!!
alexira [117]

Answer:

  7

Step-by-step explanation:

In general, the point of an inverse function is to show you the value that gives a particular function value. That is, ...

  f^{-1}(22)=7\\\\f^{-1}(f(x))=x\\\\f^{-1}(f(7))=7

7 0
3 years ago
carol spends 17 hours in a 2 week peiod practicing her culinary skills how many hours does she pratice in 5 weeks?
NNADVOKAT [17]

17/2 = 8.5 hours per week

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7 0
3 years ago
How do I do regular fractions and equivalent fractions
jenyasd209 [6]
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8 0
3 years ago
Read 2 more answers
A video rental store keeps a list of their top 15 movie rentals each week. This week the list includes 6 action, 4 comedies, 3 d
azamat

Answer:

<h2>32/1125</h2>

Step-by-step explanation:

Probability is the likelihood or chance that an event will occur.

Probability = Expected outcome of event/Total outcome.

If a video rental store keeps a list of their top 15 movie rentals each week, the total outcome is 15.

If the list for the week includes 6 action, 4 comedies, 3 dramas, and 2 mysteries and the store manager removes a copy of each of the 15 movies from the shelf, then randomly selects 3 of the 15 to show on the display monitors in the store, the probability that she selected 2 comedies and 1 action movie will be calculated as shown;

Probability of selecting 2 comedies  = 4/15*4/15 = 16/225 (Note that the expected outcome in this case is 4).

Probability of selecting 1 action movie = 6/15 = 2/5

<em>Hence, the probability that she selected 2 comedies and 1 action movie will be equivalent to 16/225*2/5 = 32/1125</em>

<em>Note that the rented movies will have to be returned hence reason for the replacement. </em>

8 0
3 years ago
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