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zimovet [89]
3 years ago
10

47 decreased by nine times d what's the mathematical expression

Mathematics
2 answers:
Lilit [14]3 years ago
8 0
Nine times d = 9*d = 9d

47 decreased by 9d = 47 - 9d

= 47 - 9d.
Nonamiya [84]3 years ago
7 0
Nine times d » 9d

47 decreased from that » 9d - 47
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Which equation can be used to solve the following word problem? Seth has 8 more nickels than dimes, and the total value of his c
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Answer:

Seth has 21 nickels

Step-by-step explanation:

Let n represent the number of nickels. Since Seth has 8 more nickels than dimes, then (n-8) is the number dimes.

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6 0
3 years ago
If there are 19 questions and each question has 4 answers, what is the probability she will answer at least one question correct
gregori [183]

Answer:

0.9958

Step-by-step explanation:

P(being correct) = 1/4 = 0.25

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Using the binomial probability formula :

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However, to save computation time, we could use a calculator :

Using a calculator,

P(x ≥ 1) = 0.99577

P(x ≥ 1) = 0.9958

7 0
2 years ago
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