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laiz [17]
4 years ago
9

a glass jar contains 1 red, 3 green, 2 blue, and 4 yellow marbles. if a single marble is chosen at random from the jar, what is

the probability that it is red
Mathematics
2 answers:
Vlad [161]4 years ago
6 0
To find the probability, you need to divide the amount of red marbles by the total amount of marbles. 

1/10 = 0.1. 

The probability of choosing a red marble is 0.1, or 10%
balandron [24]4 years ago
4 0

|\Omega|=10\\ |A|=1\\\\ P(A)=\dfrac{1}{10}=10\%

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What was the net change in the elevation of the ocean's surface from 1 p.m. to 7p.m.?​
emmasim [6.3K]

Answer:

4.6

Step-by-step explanation:

The net change is found by subtracting the starting number from the change. 2.2 minus -2.4 is 4.6. If this is wrong I apologise.

8 0
3 years ago
How is 10,021 divisible by 11
tangare [24]

Answer:

See below

Step-by-step explanation:

1-0+0-2+1=0, so since 0/11=0, it's divisible by 11

The rule for divisibility by 11 is that you subtract then add then subtract then add and so on, and if you get a number divisible by 11 or equal to 0, then it's divisible by 11.

Hope that made sense.

7 0
4 years ago
Read 2 more answers
The number of vehicles a dealership sells varies directly with the money spent on advertising.
mihalych1998 [28]
Two points I can assuming to have integer coordinates (points without decimals in (x, y) ) are (0, 0) and (5, 40)

From this, I can make a safe assumption that y is 8 times the x value.

since x value is money spent on advertising in $1000s', number of vehicles is 80 times of how much money is spent on advertising in $1000.

But, if you want to be fancy (or I guess this is more correct), 8/1000 = 0.08, so for extra dollar spent, 0.08 more vehicles are sold, rounded down.


4 0
3 years ago
Read 2 more answers
15q – 4r = 62 <br>5q + 8r = 86 <br>Find for r and q
11111nata11111 [884]

Answer:

r=7 q=6

Step-by-step explanation:

15q - 4r = 62

15 × 6 - 4 × 7 = 62

90 - 28 = 62

5q + 8r = 86

5 × 6 + 8 × 7 = 86

30 + 56 = 86

Hope this helps! If you have any more questions or need more explanation please leave a comment down below and I will reply ASAP. Good luck!

6 0
3 years ago
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Pls help will give brainly (again)
Elan Coil [88]

Answer:

6

Step-by-step explanation:

First, simplify the exponents:

2*(3^6*3*-5)

2*((3*3*3*3*3*3)*(1/3*3*3*3*3))

2*(729*0.00411522633)

Then solve from there:

2*2.99999999457

5.99999998914

Since there is only whole numbers and a fraction present, im assuming you have to round:

5.99999998914

6

6 is your answer

Hope this helps!

7 0
3 years ago
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