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cluponka [151]
3 years ago
15

Which number line models the expression -1 1/4 - (-1/2)

Mathematics
1 answer:
aniked [119]3 years ago
8 0

Answer:

option on c or under the first answer

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There are 200 student in middle school and three fifths of them are girls how many are boys?
nadezda [96]

Answer:

80

Step-by-step explanation:

3/5 of 200 = 120

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7 0
3 years ago
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The probability that a plane departs on time at a certain airport is .87 The probability that a plane arrives on time given it d
sleet_krkn [62]

Answer:

0.9355

Step-by-step explanation:

What we will use here is conditional probability formula.

let A be the event that the plane departs on time

and B be the event that it arrives on time

P(A) = 0.87

P(B|A) = 0.93

P(B) = ?

P(A n B) = ?

Mathematically;

P(B|A) = P(B nA)/P(A)

0.93 = 0.87/P(A)

P(A) = 0.87/0.93

P(A) = 0.935483870967742

which is 0.9355 to four decimal places

7 0
3 years ago
Select two ratios that are equivalent to 7:6
shtirl [24]

Two ratios that are equal to 7:6 are 14:12 and 21:18, as they are the same, but 7 and 6 are multiplied by the same number (2 in the first, and 3 in the second.)

4 0
4 years ago
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