Multiplicity problem

Next, add the two totals together 1.20+ 26.25 = 27.45. c. This is a two-step multiplication problem. To find out how many heartbeats there would be in one hour, you must multiply 72 by 60 minutes, and then multiply this result, 4,320, by 6.5 hours. 

Meyers, K., McLellan, A. T., Jaeger, J. L., Petdnati, H. M. (1995). The development of the Comprehensive Addiction Severity Index for Adolescents (CASI-A) An interview for assessing multiple problems of adolescents. Journal of Substance Abuse Treatment, 12, 181-193. 

You already know that you aren t interested in repeated additions when multiplication is so much easier to handle. The multiplication problems can be fairly simple or bordering on the challenging. No matter what the situation, you can handle it. 

You want to multiply to get this answer, and there are actually two different multiplication problems to deal with. First, you need to know how many minutes there are in one day you determine that by multiplying 60 minutes times 24 hours. Then you can multiply the number of minutes times the number of heart beats. For the number of minutes in one day, 60 x 24 = 1,440 minutes. Multiplying that by 72, you get 1,440 x 72 = 103,680 beats of the heart. That s just in one day ... 

Now try these multiplication problems with mixed numbers and whole numbers ... 

From a statistical point of view, compelling evidence of unexpected adverse events is the hardest to address satisfactorily. When unanticipated safety concerns arise, the fact that they are unanticipated means by definition that they would not have been addressed in the study protocol or statistical analysis plan and that no prespecified analytical strategy is in place. Additionally, file vast range of possible adverse events that might be anticipated means that controlling adequately for multiplicity problems is difficult (Ellenberg et al., 2003). 

THERE ARE THREE places in which you can simplify a multiplication problem involving mixed numbers. After converting the mixed numbers to fractions, you can divide a numerator and denominator... 

IN A MULTIPLICATION problem, the two numbers being multiplied are called the factors, and the result of their multiplication is called the product. In the problem 4 X 3 = 1 2, 4 and 3 are factors and 1 2 is their product. 

Unlike with addition and subtraction, we do not line up the decimal points before multiplying. Instead, we write the problem vertically as we would any other multiplication problem. 

The product of two fractions is equal to the product of the numerators over the product of the denominators. Before multiplying, we can simplify this multiplication problem. Divide the denominator of the first fraction and the numerator of the second fraction by 7. Then, divide the numerator of the first fraction and the denominator of the second fraction by 5. The problem becomes 7X7. Multiply the numerators lxl = 1. Multiply the denominators 1 X 4 = 4. y X 7 = 7. For more on this concept, see Chapter 4. 

Factor Each value being multiplied in a multiplication problem. For example, in the number sentence 1.2 X 6 = 7.2,1.2 and 6 are factors. 

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