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agasfer [191]
3 years ago
12

1. A bag contains 3 red marbles and 4 blue marbles. Two marbles are drawn at random without replacement.

Mathematics
2 answers:
Korvikt [17]3 years ago
6 0
The probability is 3/7 for the red and 4/7 for blue
Yakvenalex [24]3 years ago
3 0
1. 3/7
2. 4/7
3. 4 in 52 or 1 in 13.
4. I don't know sorry
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Nobody Knows the Answer HELP !!!!! Pleaseeeeeeeeee   CLICK & Help Me Solve !!!!!!!!!
sukhopar [10]
There are 10 total marbles and three are pink. So you are to determine the probability of choosing a pink marble, placing it back in the bag and choosing another pink marble.
The probability of choosing a pink marble is # of pink marbles to # of all marbles which is 3/10. Since we place the marble back in the bag, the probability is the same for the second time.
To determine the probability of both occurrences, we need to multiply 3/10 x 3/10 which is 9/100. This can be written as 9:100 as a ratio.
4 0
2 years ago
Find the perimeter of the shape in the image <br> A) 8cm<br> B) 12cm<br> C) 16cm<br> D) 20cm
ivanzaharov [21]

Answer:

C. 16 cm

Step-by-step explanation:

Top side: 2 + 4 = 6

Right side: 1 + 1 = 2

Bottom: 2 + 4 = 6

Left side:  1 + 1 = 2

6+6+2+2 = 16 cm.

4 0
2 years ago
Stefan spent half of his weekly allowance on clothes. To earn more money his parents let him wash the car for $5
Alenkasestr [34]
8-5=3 is the remaining half
weekly allowance=2(1÷2) where (1÷2) is 3
2×3=6

The weekly allowance should be 6.
7 0
2 years ago
The sum of three numbers $x$ ,$y$, $z$ is 165. When the smallest number $x$ is multiplied by 7, the result is $n$. The value $n$
babymother [125]

You're given

<em>x</em> + <em>y</em> + <em>z</em> = 165

7<em>x</em> = <em>n</em>

<em>n</em> = <em>y</em> - 9

<em>n</em> = 9 + <em>z</em>

and you want to find <em>xyz</em>.

Solve the last three equations for <em>x</em>, <em>y</em>, and <em>z</em> :

7<em>x</em> = <em>n</em>   →   <em>x</em> = <em>n</em>/7

<em>n</em> = <em>y</em> - 9   →   <em>y</em> = <em>n</em> + 9

<em>n</em> = 9 + <em>z</em>   →   <em>z</em> = <em>n</em> - 9

Substitute <em>x</em>, <em>y</em>, and <em>z</em> into the first equation and solve for <em>n</em> :

<em>n</em>/7 + (<em>n</em> + 9) + (<em>n</em> - 9) = 165

<em>n</em>/7 + 2<em>n</em> = 165

<em>n</em> + 14<em>n</em> = 1155

15<em>n</em> = 1155

<em>n</em> = 77

Now solve for <em>x</em>, <em>y</em>, and <em>z</em> :

<em>x</em> = 77/7 = 11

<em>y</em> = 77 + 9 = 86

<em>z</em> = 77 - 9 = 68

Then the product is

<em>xyz</em> = 11 • 86 • 68 = 64,328

6 0
2 years ago
Rectangle WXYZ with y axis<br>​
Gre4nikov [31]

Answer:

I dont understand comment on this and i can help you out

Step-by-step explanation:

:)

7 0
2 years ago
Read 2 more answers
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