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3 years ago

3. If i gallon of paint covers of the wall,

Mathematics

1 answer:

Nataliya [291]3 years ago

6 0

-- To finish painting the entire wall, you have to paint 1/3 of it 3 times.

-- Each time you paint 1/3 of it, you need 3/4 of a gallon of paint.

-- (3/4 gallon) x (3 times) = 9/4 gallon = <em>2-1/4 gallons</em>, if you don't spill any.

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At a certain college, the probability that a student attends full-time is 0.320 and the probability that the student attends par

IRISSAK [1]

Sorry i really don't know the answer.......................................................

3 0

4 years ago

−−+negative 6 x y minus 3 x plus y

likoan [24]

Answer:

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5 0

3 years ago

Consider the system of equations.

Harman [31]

The solution to the system of equations x + 2y = 1 and -3x-2y = 5 is:

x = -3, y = 2

The given system of equations:

x + 2y = 1............(1)

-3x - 2y = 5..........(2)

This can be written in matrix form as shown:

$\left[\begin{array}{ccc}1&2\\-3&-2\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right] = \left[\begin{array}{ccc}1\\5\end{array}\right]$

Find the determinant of $\left[\begin{array}{ccc}1&2\\-3&-2\end{array}\right]$

$\triangle = 1(-2) - 2(-3)\\\triangle = -2+6\\\triangle = 4$

$\triangle_x = \left[\begin{array}{ccc}1&2\\5&-2\end{array}\right]\\\triangle_x = 1(-2)-2(5)\\\triangle_x = -2-10\\\triangle_x =-12$

$\triangle_y = \left[\begin{array}{ccc}1&1\\-3&5\end{array}\right]\\\triangle_y = 1(5)-1(-3)\\\triangle_y = 5 + 3\\\triangle_y =8$

$x = \frac{\triangle_x}{\triangle} \\x = \frac{-12}{4} \\x = -3$

$y = \frac{\triangle_y}{\triangle} \\y = \frac{8}{4} \\y = 2$

The solution to the system of equations x + 2y = 1 and -3x-2y = 5 is:

x = -3, y = 2

Learn more here: brainly.com/question/4428059

3 0

2 years ago

A minor league baseball team plays 72 games in a season. If the team won 15 more than twice as many games as they lost, how many

Alina [70]

X = games won
y = games lost

x + y = 72
x = 2y + 15

2y + 15 + y = 72
3y + 15 = 72
3y = 72 - 15
3y = 57
y = 57/3
y = 19 <=== lost games

x = 2y + 15
x = 2(19) + 15
x = 53 <=== won games

3 0

3 years ago

Pls help, this is due tomorrow

Crank

Answer:

You have a higher chance of getting an even number than a multiple of three. There are 3 even numbers and only 2 multiples of three.

6 0

3 years ago

Read 2 more answers