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Semmy [17]
3 years ago
13

The probability that Sara wins a raffle is given by the expression n n + 3 . Write down an expression, in the form of a combined

single fraction, for the probability that Sara does not win.
Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0

Answer:

n/3

Step-by-step explanation:

n×by n is=n square.

n/3

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E, 56, because you have 28 dollars, and you have to multiply that by two to get half dollars. 28*2=56.
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A goat is grazing outside of a rectangular barn that has dimensions 20 ft by 30 ft.
anastassius [24]

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Restaurant is making hamburgers. The cooks use
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Answer:

70.69

Step-by-step explanation:

46 2/3 divided by 2/3

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If the cook makes twice as much beef then the number of hamburgers would be two times larger which would be 141.39.

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5 0
3 years ago
Line g passes through points (5, 9) and (3, 2). Line h passes through points (9, 10) and (2, 12). Are line g and line h parallel
icang [17]

For this case we find the slopes of each of the lines:

The g line passes through the following points:

(x_ {1}, y_ {1}) :( 3,2)\\(x_ {2}, y_ {2}) :( 5,9)

So, the slope is:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {9-2} {5-3} = \frac {7} {2}

Line h passes through the following points:

(x_ {1}, y_ {1}) :( 9,10)\\(x_ {2}, y_ {2}) :( 2,12)

So, the slope is:

m = \frac {y_ {2} -y_ {1}}{x_ {2} -x_ {1}} = \frac {12-10} {2-9} = \frac {2} {- 7} = - \frac {2} {7}

By definition, if two lines are parallel then their slopes are equal. If the lines are perpendicular then the product of their slopes is -1.

It is observed that lines g and h are not parallel. We verify if they are perpendicular:

\frac {7} {2} * - \frac {2} {7} = \frac {-14} {14} = - 1

Thus, the lines are perpendicular.

Answer:

The lines are perpendicular.

8 0
3 years ago
A certain hybrid car has a mileage rating of 57 miles per gallon. if the car makes a trip of 293 miles, how many gallons of gaso
dlinn [17]
To determine the number of gallons of gasoline that is used, we need to know the rate of usage of gasoline. This rate would describe the number of gasoline in units of volume that is being used per distance in units of length. In this case, we need the rate in units of miles per gallon. From what is asked and the given values, we simply divide the rate to the the total distance that was traveled by the car. We calculate as follows:

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Therefore, about 5 gallons of gasoline was consumed by the hybrid car for a distance of 57 miles.
4 0
4 years ago
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