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Kryger [21]
3 years ago
9

Evaluate 7-\left(-19\right)-18+\left(-19\right)+187−(−19)−18+(−19)+187, minus, left parenthesis, minus, 19, right parenthesis, m

inus, 18, plus, left parenthesis, minus, 19, right parenthesis, plus, 18.
Mathematics
1 answer:
IrinaVladis [17]3 years ago
6 0

Answer:

345

Step-by-step explanation:

7-\left(-19\right)-18+\left(-19\right)+187-\left(-19\right)-18+\left(-19\right)+187

7+19-18+\left(-19\right)+187-\left(-19\right)-18+\left(-19\right)+187

26-18+\left(-19\right)+187-\left(-19\right)-18+\left(-19\right)+187

8+\left(-19\right)+187-\left(-19\right)-18+\left(-19\right)+187

8-19+187-\left(-19\right)-18+\left(-19\right)+187

-11+187-\left(-19\right)-18+\left(-19\right)+187

176-\left(-19\right)-18+\left(-19\right)+187

195-18+\left(-19\right)+187

177+\left(-19\right)+187

177-19+187

158+187

=345

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<u>Step-by-step explanation:</u>

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3 years ago
A random sample of 49 statistics examinations was taken. the average score, in the sample, was 84 with a variance of 12.25. the
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Since in this case we are only using the variance of the sample and not the variance of the real population, therefore we use the t statistic. The formula for the confidence interval is:

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Question 696338: Please I need help solving an algebra: solving proportions
CHARITY Karthik spent $35 of his allowance and gave $5 to a charity. If the number of dollars he spends is proportional to the number of dollars he gives to charitt, how much of much of a $100-allowance will he give to a charity?
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Answer by stanbon(74715) About Me (Show Source):
You can put this solution on YOUR website!
Karthik spent $35 of his allowance and gave $5 to a charity. If the number of dollars he spends is proportional to the number of dollars he gives to charitt, how much of a $100-allowance will he give to a charity?
-----
x/100 = 5/35
----
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