All categories

2 years ago

If the odds against a student receiving an A grade in a mathematics class are 7 to 3, what is the

Mathematics

1 answer:

katovenus [111]2 years ago

4 0

Answer:

70%

Step-by-step explanation:

Since it can't go over 100%, and our numbers are 7 and 3, they are 70% and 30%, which add up to 100%.

You might be interested in

What is the value of |−25|?

Debora [2.8K]

Answer:

Step-by-step explanation:

3 0

2 years ago

What is the value of the discriminant for the quadratic equation -3=-x^2+2x? discriminant =b^2-4ac

Elena L [17]

Answer:

Step-by-step explanation:

$-x^2+2x=-3\qquad\text{add 3 to both sides}\\\\-x^2+2x+3=0\\\\a=-1,\ b=2,\ c=3\\\\\text{Substitute to}\ D=b^2-4ac:\\\\D=2^2-4(-1)(3)=4+12=16$

9 0

3 years ago

Read 2 more answers

Please help.

pogonyaev

Answer:

3 2/3 square feet.

Step-by-step explanation:

You just need to multiply 6 and 4 2/3. To do this you have to change both of them into improper fractions so 6 would be 21/3 and 4 2/3 would be 14/3. If you cross cancel the 21/3 will become 7/3 and the 14/3 will become 14/1. Now you have to multiply across and you should get 98/3. To change the improper fraction into a mixed number you have to divide 98 and 3 so you can get 3 2/3. Therefore, the answer to the area of the quilt is 3 2/3 square feet.

7 0

2 years ago

How do you do these geometry?

siniylev [52]

Answer:

The angles are 45°, 60° , 75°

Step-by-step explanation:

<h3>Angle sum property:</h3>

Sum of all the angles of a triangle is 180°.

Equation:

3x + 5x + 4x = 180

Combine like terms,

12x = 180

x = 180/12

$\sf \boxed{x = 15}$

3x = 3 *15 = 45°

5x = 5* 15 = 75°

4x = 4 *15 = 60°

4 0

1 year ago

Read 2 more answers

Sandy charges each family that she babysits for a flat fee of $10 for the night and $5 extra per

Pani-rosa [81]

30 = 5x + 10 so x = 4

5 0

3 years ago