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maks197457 [2]
3 years ago
7

A jar contains 3 black marbles, 4 white marbles and 5 striped marbles. If a marble is picked at random, what is the probability

that it is black? Give your answer as a fraction in lowest terms.
Mathematics
2 answers:
aniked [119]3 years ago
5 0

Answer:

1/4

Step-by-step explanation:

3 black marbles, 4 white marbles and 5 striped marbles. = 12 marbles

P(black) = number of black / total

             =3/12

               =1/4

aliina [53]3 years ago
4 0

Answer:

1/4

Step-by-step explanation:

# of black marbles/ total # of marbles

3/(3+4+5)

3/12

1/4

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aivan3 [116]

Answer:

Hello! answer: a = 11

Step-by-step explanation:

2 × 11 = 22 So therefore a = 11 HOPE THAT HELPS!

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What is the algebraic identity of (5x+3x)²
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Step-by-step explanation:

(5x+3x)²

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7 0
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4 0
3 years ago
Which number rounds to 260 when rounded to the nearest 10?
mylen [45]
I looked it up and  got this........

What is 260 rounded to the nearest ten?
Here we will tell you what 260 is rounded to the nearest ten and also show you what rules we used to get to the answer. First, 260 rounded to the nearest ten is:
260
Remember, we did not necessarily round up or down, but to the ten that is nearest to 260.
When rounding to the nearest ten, like we did with 260 above, we use the following rules:
A) We round the number up to the nearest ten if the last digit in the number is 5, 6, 7, 8, or 9.
B) We round the number down to the nearest ten if the last digit in the number is 1, 2, 3, or 4.
C) If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.

3 0
3 years ago
Of the sundaes recently sold at Ice Cream Haven, 6 had nuts and 14 did not. Considering this data, how many of the next 10 sunda
Schach [20]

Answer:

3 sundaes will have nuts

Step-by-step explanation:

Note that the total number of sundaes so far is 20, 6 of which had nuts, and 14 didn't.

Therefore the fraction representing the sundaes with nuts would be 6/20 = 3/10.

The fraction without nuts would be 7/10.

The question is asking for you to predict the number of sundaes that will have nuts using these fractions. Out of 10 sundaes, 3 of them will have nuts.

3 0
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