Answer:
There are 32 dimes and 25 quarters.
Step-by-step explanation:
q + d = 57 or q = 57 - d
25q + 10d = 945
substitute first equation into second equation:
25(57 - d) + 10d = 945
1425 - 25d + 10d = 945
-15d = -480
d = -480/-15 = 32
using first equation:
q = 57 - 32 = 25
check using second equation:
25(25) + 10(32) = 945 checks
The correct answer is: [A]: " -60 " .
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Explanation:
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We are asked to find the "product" of the two numbers, " 12 " and " -5 " .
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The "product" refers to the result of "multiplying" numbers.
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So, what is the value, when "12" is multiplied by "-5" ?
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<u>Note</u>: When a "positive number" is multiplied by a "negative number" , the result is a "negative number" .
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So; the product of "12" and "-15" is: " 12 * -5 " ; which equals: " -60 " ;
which is: Answer choice: [A]: " - 60 " .
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41*10^0
41*1
41
41 multiplied by 10 to the 0th power is 41
From the given statement above, the information that can be extracted from the data is the mean which is equal to 9 % , SD equal to 4%, n is equal to 20. we can also get the variance from SD. also, we can also determine the z-score of the data which is important in the distribution.
16-4=12
12x5=60
I'm putting together assumptions as this isn't really clear to me, I apologize.
