beth sold half of her comic books and then bought nine more. shoe now has 28. with how much did she begin?
2 answers:
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Carlos made the mistake that he did not combine like terms (3 x and 2 x) properly and did not use addition property of equality.
<u>Step-by-step explanation:</u>
Carlos did the work as 3 x + 2 x - 6 = 24
We need to find his mistake that he made in above given.
Here, he did not add the like terms (3 x and 2 x)
3 x + 2 x = 5 x
Therefore, his work should be
5 x - 6 = 24
Also, he did not use addition property of equality. It means the equation remains same even though the same number gets added on both sides. It would be
5 x - 6 = 24
+ 6 = + 6
-----------------------
5 x = 30
Dividing 30 by 5, we get answer as '6'. Hence,
= 6
So, stated the above two are the mistakes found in carlos work.
Answer:140ft2
Step-by-step explanation: area= base times height
Area=14ft . 10ft
Area=140ft2
The reasonable estimate of the current customer price index is 195. The option B is the correct option.
<h3>Customer price index</h3>Customer price index is the price index which measures the weight average of price of basket of customers goods or services.
It can be given as,
Here is the cost of market basket in current period and
is the cost of market basket in the base period.
Cost of market basket in current period is
Cost of market basket in 1983 is,
Substitute all the values in the formula
Thus the value of current CPI is 168.5 which is near about the 170.
Hence, the reasonable estimate of the current customer price index is 195. The option B is the correct option.
Learn more about the customer price index here;