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maks197457 [2]
2 years ago
6

If 62% of 80 classmates like hip-hop, but 70% of 60 relatives like hip-hop, which one is more?

Mathematics
2 answers:
SIZIF [17.4K]2 years ago
8 0

62 percent of 80 is more

Step-by-step explanation:

the 62 percent of 80 comes out to 49.6 people and the other one comes out to 42 people

i dont know how to explain how to do it

Oliga [24]2 years ago
8 0
62% of 80 is more

80=100%
x=62%

You divide the ones with the same units

x/80 = 62%/100% (write those as fractions if you have to show any work)
x=49.6

60=100%
x=70%

x/60 = 70/100
x=42



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There are various ways in which you could do this problem.  I'm going to share what I think is one of the faster ways.

Instead of thinking of jumping from (-1,4) TO (2,-2),  Consider the horiz. jump separately and the vertical jump separately.  From -1 to 2 is 3 units.  Three times that is 9 units.  Add 9 to -1, obtaining 8.  That's the horiz. component of the terminal point.

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3 years ago
A square pool has a side length of x feet.A uniform border around pool is 1 footwide.The total area of the pool and the border o
lions [1.4K]
The total area of pool and border = 361  square feet.

Length of square pool = x

Length of square pool plus border =  (x + 1 +1 ) = x + 2

There is 1 foot length on each side on the x  length.

The other length of the square pool and border =  (x + 2)

Area = (x+2)(x+2)

     (x + 2)(x +2) =  361.            Let A = x +2

        A*A = 361
            A²  = 361    Take square root of both sides
             A  = √361
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A = x + 2 = 19
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Area of square pool = x*x = 17*17 = 289

Area of the pool = 289 square feet.
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3 years ago
Mr. Wolboldt and Mrs. Wolboldt went to Bob Evans for lunch. Their bill for the food was $26.50. If they plan on leaving a 20% ti
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Step-by-step explanation:

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Answer:

1) The parabola equation faces up

2) The y-intercept = a·b

3) The zeros are x = a and x = b

Step-by-step explanation:

1) The given information are;

f(x) = (x - a)·(x - b) which gives;

f(x) = x² - (b+a)·x + a·b

For an equation of the form a·x² - b·x + c, if a is positive, then the parabola faces up, therefore, the parabola equation, x² - (b+a)·x + ab where a is equivalent to +1 faces up

2) The y-intercept is given at x = 0, which gives;

f(0) = 0² - (b+a)·0 + a·b

The y-intercept = a·b

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(x - a) = 0 or (x - b) = 0

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4 0
3 years ago
Solve the systems of equation by graphing (Picture provided)
11Alexandr11 [23.1K]

Answer:

Option b

Step-by-step explanation:

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x + y = 8\\2x + y = 3

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We find the cut points of both lines with the axes.

x + y = 8

Cut with the x axis. (y = 0)

x = 8

Cut with the y axis. (x = 0)

y = 8

...................................................................

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Cut with the x axis. (y = 0)

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Cut with the y axis. (x = 0)

y = 3

The solution to this system will be a point for which it is fulfilled that:

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Therefore the solution of the system of equations is: (-5, 13)

You can verify this by replacing the point in the relationship

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Equality is satisfied

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