So if you solve for x using the first equation, you get: x = 5y - 5.
From there you can plug that into the second equation which would give you:
7y-5y+5=-23
Simplifying from that point, you get y = -9.
Now that you have one of the values, you can solve for x by plugging it back into the equation we made (x = 5y - 5) and getting to the answer x = -40.
The answer would be 6 weeks.
First, you do 44 divided by 4 to get 11 kg per week. Now you divide 66 by 11 to get 6 weeks.
My Answer:
The events are dependent.
- The size of the original sample space is 8. It changes to 7 after the first dime is chosen.
- The probability of picking the first dime is 2/8.
- The probability of picking the second dime is 1/7
To find the probability of the compound event, multiply the probabilities.
I got it correct, on edge 2020/2021
For this case what you should do is solve the problem using for example a rule of three
60% ---> 36
100% ---> x
Clearing x we have:
x = (100/60) * (36) = $ 60
Checking the result:
40% of 60 is
(0.40) * (60) = 24
60-24 = 36 $
Answer:
the original price of the pair of headphones is $ 60