Emma walked her dog for 1/2 hour before school and 3/4 hour after school. which equation can be used to find the total number of hours emma walked her dog?

a) 1/2+h=3/4

b)1/2h=3/4

c)3/4h=1/2

d)h-1/2=3/4

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Option D. h-(1/2)=(3/4)

Step-by-step explanation:

Let

h> the number of hours Emma walked her dog

we know that

The equation that represent the situation is equal to

h=(1/2)+(3/4)

Subtract (1/2) both sides

h-(1/2)=(3/4)

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.