2 years ago

The total marks obtained in a mathematics test was 384 if the mean was 24 how many children took the test

1 answer:

6 0

301 kids took the test

You might be interested in

kupik [55]

21 Turn 75%into a decimal 0.75 than multiply that by 28

7 0

3 years ago

Whitepunk [10]

Answer:

$\frac{-1+/-3\sqrt{2} }{2}$ where a = 1, b = 1,and c=-4

Step-by-step explanation:

To solve, use the quadratic formula. Using the quadratic formula, requires the standard form $ax^2+bx+c$ Here a = 1, b = 1, and c = -4.

The quadratic formula is $x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}$ .

Substitute and you'll have:

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a} =\frac{-1+/-\sqrt{1^2-4(1)(-4)} }{2(1)}=\frac{-1+/-\sqrt{1+17} }{2)}$

$\frac{-1+/-\sqrt{18} }{2}=\frac{-1+/-3\sqrt{2} }{2}$

6 0

4 years ago

adelina 88 [10]

The answer is 36
48 divided by 4 equals 12
so 12 times 3 equal 36

7 0

4 years ago

Neporo4naja [7]

Answer:

The answer is D. Yes; the graph passes the vertical line test.

3 0

3 years ago

kupik [55]

Answer:

The question is not showing what we are supposed to find.

b+3b+10

8 0

3 years ago