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3 years ago

Tracy had 71 stickers. She gave 4 stickers each to 9 friends. How many stickers are left over

Mathematics

1 answer:

Tatiana [17]3 years ago

3 0

Answer: She would have exactly 58 stickers left (Plz make me Brainliest)

Step-by-step explanation:

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Answer: x = -6 and y = -9

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What is the solution to the system of equations graphed below?

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3 years ago

The points A(-3,6), B(8,6), C(8,-4)and D(-3,-4)are vertices of rectangle ABCD. A point is selected at random from the interior o

aleksklad [387]

Answer:

the probability that the x-coordinate of the point is negative and the y-coordinate of the point is positive is 16.36%

Step-by-step explanation:

Assuming that each point has the same probability to be chosen ( uniform probability distribution in the rectangle area ) then the probability of choosing a negative x-coordinate and positive y-coordinate is the ratio of the area with those requirements over the total area of the rectangle.

therefore

Ar= area of negative x-values and positive y-values = (-3)*6 = 18

AT= total area of the rectangle = [8-(-3) ]*[6-(-4)] = 110

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4 years ago

At a particular restaurant, each pizza roll has 60 calories and each mini hotdog has 70 calories. A combination meal with pizza

PolarNik [594]

Answer:

There are 9 pizza rolls and 12 mini hotdogs in the meal.

Step-by-step explanation:

We are given the following in the question.

Let x be the number of pizza rolls sold and y be the number of mini hotdogs in the combination meal.

Total number of items in combination meal = 21

Thus, we can write the equation:

$x + y = 21$

Calorie in a pizza roll = 60

Calorie in a mini hotdog = 70

Total calories = 1380

Thus, we can write the equation:

$60x + 70y = 1380$

Solving the two equations, we get,

$60x + 70y - (60x+60y) = 1380 - 60(21) \\10y = 120\\\Rightarrow y = 12\\\Rightarrow x = 21-12 = 9$

Thus, there are 9 pizza rolls and 12 mini hotdogs in the meal.

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3 years ago

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Step-by-step explanation:

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