Work ou the value of 19+7÷2-5

helllppp pls

17 1/2

Step-by-step explanation:

19+7÷2-5

Solve using PEMDAS

Divide first

19 + 7/2 -5

Then add and subtract from left to right

Getting a common denominator

38/2 + 7/2 - 10/2

45/2 - 10/2

35/2

17 1/2

17.5

Pemdas

1) divide

19 + 7/2 -5

Then add and subtract from left to right

Getting a common denominator

2) add

38/2 + 7/2 - 10/2

3) subtract

45/2 - 10/2

=35/2

=17 1/2

Hope this helps <3

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in counting the number of heads in 4 coin flips, the probability that we get exactly one head is the probability that we get anyone of the following 4 outcomes: httt, thtt, ttht, or ttth. each has probability 1/16, so the probability to get exactly one head in 4 flips is 1/16 + 1/16 + 1/16 + 1/16 = 4/16 = 1/4.