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melamori03 [73]
3 years ago
15

In a 6th grade class there are 30 students. Out of these students, 3/5 achieved AL in Math and 2/6 achieved ML. Assuming that no

student failed, find the number of students that achieved CL.
Mathematics
1 answer:
babunello [35]3 years ago
6 0

Answer: 2

Step-by-step explanation:

3/5 of 30 = 18(AL)

2/6 of 30 = 10 (ML)

18+10 = 28 (AL+ ML)

the remainder

30-28 = 2 (CL)

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Brazilian footballer ronaldo scored 247 goals in 343 matches
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Step-by-step explanation:

512 / 5.28 = 0.97 goals for every match

247 / 3.43 = 0.72 goals for every match

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Daniel spent 3 hours babysitting for his brother. He and the children played games for 1 3/4 hours and watched television for 1/
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2 years ago
What is the completely factored form of f(x)=x3+5x2+4x−6?
Gre4nikov [31]
f(x)=x^3+5x^2+4x-6
f(-3)=(-3)^3+5(-3)^2+4(-3)-6=0\implies x+3\text{ is a factor of }f(x)

Synthetic division yields

-3  |  1   5   4   -6
.    |      -3  -6    6
- - - - - - - - - - - - -
.    |  1   2  -2    0

which translates to

\dfrac{x^3+5x^2+4x-6}{x+3}=x^2+2x-2

with remainder 0. Now by the quadratic formula,

x^2+2x-2=0\implies x=\dfrac{-2\pm\sqrt{2^2-4(1)(-2)}}2=-1\pm\sqrt3

and so

f(x)=x^3+5x^2+4x-6=(x+3)(x-(-1+\sqrt3))(x-(-1-\sqrt3))
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3 years ago
Which statement is true?
Vladimir [108]

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1 yard = 3 feet

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Solve the following system of equations by elimination​
olya-2409 [2.1K]

Answer:

y = -6

x = 1

Step-by-step explanation:

-x + 2y = -13

-x - 2y = 11

Sum the equations:

-x -x = -2x

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-13 + 11 = -2

then

-2x = -2

x = -2/-2

x = 1

from the first eq.

-x + 2y = -13

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2y = -13 + 1

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y = -12/2

y = -6

check:

from the second eq.

-x -2y = 11

-1 -(2*-6) = 11

-1 -(-12) = 11

-1 + 12 = 11

5 0
2 years ago
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