A laundry bag contains 7 brown socks and 2 black socks. Find the probability of picking a brown sock first,

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

6 0

Answer

7/9 chance to pick a brown sock first and 1/4 chance to get a black sock after

Step-by-step explanation:

there are 9 total socks and 7 are brown so you will have a 7/9 chance to get a brown sock

then if you do get a brown the total number of socks will be 8 in the bag so then you have a 2/8 chance which can be simplified to 1/4

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Diana is painting statues. She has \dfrac{7}{8} 8 7 start fraction, 7, divided by, 8, end fraction of a liter of paint remaini

anzhelika [568]

Answer:

Number of statues that can be painted are 17

Step-by-step explanation:

Initially Diana has $\frac{7}{8}$ liters of paint remaining.

Every statue requires $\frac{1}{20}$ liters of paint for painting.

We have to find how many statues we will be able to paint with this remaining paint.

To get the number of statues,

Number of statues = $\frac{Paint remaining}{Paint required for 1 statue}$

number of statues = $\frac{\frac{7}{8} }{\frac{1}{20} }$

= $\frac{35}{2}$ = 17.5

Since the number of statues is not an integer the maximum number of statues that can be painted are 17.

3 0

3 years ago

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which description best describes the solution to the following system of equations y= -2x +3 y= -x + 1

marin [14]

For this case we have the following system of equations:
$y = -2x +3

y = -x + 1$
Equating the values of y we have:
$-2x +3 = -x + 1
$
From here, we can clear the value of x.
We have then:
$-2x + x = 1 - 3

-x = -2

x = 2$
Then, we look for the value of y.
For this, we substitute x in any of the equations:
$y = -x + 1

y = -2 + 1

y = -1$
Answer:
The ordered pair solution of the system of equations, is given by:
$(x, y) = (2, -1)$