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Feliz [49]
2 years ago
12

a marble bag contains three red marbles and four gray marbles six white marbles and five black marbles what is the probability o

f randomly drawing a red marble and then a gray marble if the first marbel is replaced
Mathematics
1 answer:
Andrews [41]2 years ago
3 0

Answer:

1/27

Step-by-step explanation:

do good!

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Is (2, 2) a solution of y &lt; 4x - 6?<br> Choose 1 answer<br> yes or no
zalisa [80]

No, (2,2) is not solution of y < 4x - 6

Step-by-step explanation:

To solve above linear problem, we use standard method of  Back- Substitution.

First of all, A point (2,2) only becomes solution of equation, if it satisfies equation y < 4x - 6.

Here, the  y < 4x - 6  seems to be like a linear equation.

In this Equation, using  Back- Substitution method,

Point (2,2) : first digit 2 corresponds to x- coordinate and second digit 2 corresponds to y-coordinate.

           y < 4x - 6.....(1)     \\\         x= 2        .....(2)       \\\       y= 2        .....(3)

By putting value of x and y in equation (1),

Equation becomes,

        2 <  4 \times 2  - 6

       2 < 8       -  6

       2 <  2      .... not true mathematically.

Finally, the result came is not true. Therefore, (2,2) is not solution for equation

y < 4x - 6          

4 0
3 years ago
A tank currently holds 5 gallons of water. It is being filled at the rate of 1/4 gallon per minute. How long will it take for th
Verdich [7]
So we know the tank already has 5 gallons and we need 9. This means we need 4 more gallons in order to fill up the tank.

If 1/4 gallon is being filled per minute we need to find out how many 1/4 gallons makes up 4 gallons in total.

4 of the 1/4 gallons makes up 1 whole gallon. So since we need 4 whole gallons we would need 16 of the 1/4 gallons.

This means that it will take 16 minutes for the tank to hold 9 gallons of water. 
6 0
3 years ago
Read 2 more answers
1.) what is five forths of a right angle, 2.) what is three forths of a right angle?
klasskru [66]

Answer:

1.) 112.5 degrees

2.) 67.5 degrees

3.) 150 degrees

4.) 240 degrees

5.) 540 degrees

( don't hate me if any is wrong don't think they are but just trying to help) let me know if any of them are wrong and if it helped!

3 0
3 years ago
Read 2 more answers
Express 6 cups to 4 quarts as a fraction in simplest form.
natulia [17]
3/2 because you divide both by 2
8 0
2 years ago
Jack earns $40 in interest each year on an investment. What is his interest rate if his principal was $200
Fudgin [204]

Answer:

The interest rate is 20%.

Step-by-step explanation:

In order to calculate the interest rate, we need to compute how many percents the value he recieves is related to the total he invested. In this case he recieves 40 every year and he invested 200, to calculate that we will apply a rule of three. We have:

$200 -> 100%

$40 -> x%

200/40 = 100/x

200*x = 40*100

200*x = 4000

x = 4000/200 = 20

The interest rate is 20%.

8 0
2 years ago
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