to subtract 178-135 mentally, carmine adds 5 to each number. karen adds 2 to each number. will both methods work to find the cor
2 answers:
Answer:
Both, the methods will give the correct answer.
Step-by-step explanation:
We are given the following information in the question:
178 - 135 = 43
If Carmine adds 5 to each number, then,
If Karen adds 2 to each number than the subtraction problem will look like:
Adding 5 to each number or adding 2 to each number won't change the answer.
One must make sure that equal amount of quantity should be added to both the components. Sometimes this technique helps us to simplify the problem and it could be solved easily.
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Answer:
0.6210
Step-by-step explanation:
Given that a Food Marketing Institute found that 39% of households spend more than $125 a week on groceries
Sample size n =87
Sample proportion will follow a normal distribution with p =0.39
and standard error =
the probability that the sample proportion of households spending more than $125 a week is between 0.29 and 0.41
=
There is 0.6210 probability that the sample proportion of households spending more than $125 a week is between 0.29 and 0.41