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2 years ago

11

In a class of 30 students, 12 have a brother and 25 have a sister. There are 2 students who do not have any siblings. What is th

e probability that a student who has a brother also has a sister?

1 answer:

Debora [2.8K]2 years ago

4 0

12 I think , actually I am not sure about this , if it is wrong count on me

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Follow the steps to solve this equation:

saw5 [17]

4X-8=12
+8 +8

4x/4=20/4

X=5

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2 years ago

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Please help now !! I’ll give u brainliest ..

Sunny_sXe [5.5K]

Answer:

x = 0 AND x = -1

Step-by-step explanation:

You find the solution by finding where the two graphs meet. Then you can pull the x-coordinate off the points of intersection which is at 0 and -1

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2 years ago

A company paid $78 each for 51 uniforms for its employees. How much did the uniforms cost?

kap26 [50]

if they paid $78 each for every uniform then each uniform would be $78

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3 years ago

Based on the type of equations in the system, what is the greatest possible number of solutions? StartLayout Enlarged left-brace

krok68 [10]

Answer:

2

Step-by-step explanation:

Given the system of equations:

$x^2+y^2=9\\9x+2y=16$

Comparing $x^2+y^2=9$ with the general standard equation of a circle $(x-h)^2+(y-k)^2=r^2$ .

The first equation is an <u>equation of a circle centred</u> at (0,0) with a Radius of 3.

The second equation 9x+2y=16 is a <u>straight line equation.</u>

A straight line can only intersect a circle at a maximum of 2 points.

Therefore the greatest possible number of solutions to the equations in the system is 2.

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2 years ago

How many times does 82 go into 500

lana [24]

Answer: 6.09756097561

Step-by-step explanation: that many times

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