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nika2105 [10]
3 years ago
6

Problem #1: Mrs. Grape has 90 students. On her last test, 3/10 of these students earned an A. Of those students, 1/9 got a perfe

ct score. How many students got a perfect score?
Mathematics
1 answer:
ser-zykov [4K]3 years ago
5 0

Answer:

3 students got a perfect score.

Step-by-step explanation:

Total number of students in Mrs. Grape's class = 90

Number of students who earned an A = 3/10 of 90

= \frac{3}{10}\times 90

= 27 students

Out of 27 students the number of students who got perfect score

= \frac{1}{9}\times 27

= 3 students

3 students got a perfect score.

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c

Step-by-step explanation:

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Answer:

the width is 360 ft

Step-by-step explanation:

The computation of the width of the flag is shown below:

Let us assume the width be x

So the length would be x + 340

And, the perimeter is 2,120 ft

So the formula is

Perimeter = 2(length + width)

2,120 = 2(x + 340 + x)

2,120 = 2x + 680 +  2x

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4x = 2,120 - 680

x = 360

hence, the width is 360 ft

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3 years ago
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DochEvi [55]
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3 years ago
Enter the number that makes the equation true.​
Mrrafil [7]

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4 0
3 years ago
Read 2 more answers
HELP; PLZZZ GIVING 20 BRAINLIEST PLZZZ.
Andrew [12]

Answer:

Step-by-step explanation:

In the equation y=kx+1, k is the slope and 1 is the y-intercept.

To find the slope, use the formula k=y2-y1/x2-x1. To use this formula, you need two points. The first point, point M, is given to you. The second point can be the y-intercept, point (0, 1). Now, apply the formula to find the slope: k=3-1/1-0

k=2/1

k=2

We now have the equation y=2x+1.

The next step is to graph the line.

First, graph the y-intercept. Should look something like this: (star represents point. the point is on (0, 1).)

           |

           |

           *

------------------------------

           |

           |        

Then, use the slope to find your second point: (the point is on (1, 3)).

           |    *

           |

           *

------------------------------

           |

           |        

Draw a line through those two points and you have your answer!

6 0
3 years ago
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