What is the coefficient for x in the equation below?
2 answers:
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You can factor -80 as
So, we have
The square root of a product is the product of the square roots:
Since and
, we have
Answer:
Step-by-step explanation:
Let be "l" the number of CDs Ms.Kitts sold last week, and "t" the number of CDs she sold this week.
You need to remember that:
1. The word "times" indicates a multiplication.
2. The word "more" indicates addition.
Then, the sentence "Last week she sold 6 more than 3 times the number of CDs that she sold this week" can be represented with equation:
According to the information given in the exercise, the sum of the number of CDs Ms. Kitts sold last week and this week is: 110 CDs.
Since a sum is the result an Addition, you can write the following equation:
Therefore, the System of equations that can be used to find the number of CDs she sold last week and the number of CDs she sold this week, is: