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amid [387]
3 years ago
15

A bag contains 10 marbles: 2 are green, 2 are red, and 6 are blue. Yolanda chooses a marble at random, and without putting it ba

ck, choose another one at random. What is the probability that both marbles she chooses are green? Write your answer as fraction in simplest form.
Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0

Answer:

2/10 = 1/5

Step-by-step explanation:

You might be interested in
Which number is opposite of -5 in both its value and direction it lies on a number line?
ASHA 777 [7]

Answer:

The opposite of - 5 would be 5

Step-by-step explanation:

Because opposite number only means a number with an oposite sign

6 0
2 years ago
The cash drawer of the market contains $227. There are six more $5 bills than $10 bills. The number of $1 bills is two more than
k0ka [10]

Answer:

There are 122 one dollar bills, 11 five dollar bills and 5 ten dollar bills.

Step-by-step explanation:

There are bills of one dollar, five dollars and ten dollars on the cash drawer, therefore the sum of all of them multiplied by their respective values must be equal to the total amount of money on the drawer. We will call the number of one dollar bills, five dollar bills and ten dollar bills, respectively "x","y" and "z", therefore we can create the following expression:

x + 5*y + 10*z = 227

We know that there are six more 5 dollar bills than 10 dollar bills and that the number of 1 dollar bills is two more than 24 times the number of 10 dollar bills, therefore:

y = z + 6\\x = 2 + 24*z

Applying these values on the first equation, we have:

2 + 24*z + 5*(z + 6) + 10*z = 227\\2 + 24*z + 5*z + 30 + 10*z = 227\\39*z + 32 = 227\\39*z = 227 - 32\\39*z = 195\\z = \frac{195}{39}\\z = 5

Applying z to the formulas of y and x, we have:

y = 5 + 6 = 11\\x = 2 + 24*5 = 122

There are 122 one dollar bills, 11 five dollar bills and 5 ten dollar bills.

4 0
3 years ago
Please answer the question in the photo that I have attatched. Please also explain how to solve it so I may solve the others.
Svet_ta [14]
Use Pythagorean theron: a^2 + b^2 = c^2
8 0
3 years ago
Which of the following represents the difference between the central angles of the above regular polygons? Round to the nearest
solong [7]

Answer:

its 15.43

Step-by-step explanation:

you didnt put a picture for the polygons but im pretty sure this is from math nation.

6 0
2 years ago
Kyle wants to wrap the box in wrapping paper. A rectangular prism with a length of 18 inches, width of 6 inches, and height of 3
m_a_m_a [10]

Answer:

180 squared inches

Step-by-step explanation:

SA= L*W, L*H, H*W

108+54+18

=180

3 0
3 years ago
Read 2 more answers
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