1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ArbitrLikvidat [17]
2 years ago
13

a jar contains 36 marbles. it has 20 red, 12 black, and 4 green marbles. two marbles are drawn; the first is not returned before

the second one is drawn. what is the probability that both marbles are red?
Mathematics
1 answer:
Sedaia [141]2 years ago
4 0
The probability of drawing red on the first draw is 20/36. Having drawn red on the first draw, the probability of drawing red on the second draw is 19/35. The probability that both marbles are red is therefore;
P(both\ red)=\frac{20\times19}{36\times35}=0.302
You might be interested in
Joe makes $13.35 an hour. If Joe works 40 hours in one week, how much would he earn for the week?
Lelechka [254]

Answer:

534

Step-by-step explanation:

multiply 13.45 by 40 and you will get 534

6 0
3 years ago
12. Phillip deposited $450 in an account that earns
Salsk061 [2.6K]
This is your genuine answer

7 0
3 years ago
Read 2 more answers
yael used to have a square garage with 292ft^2 of floor space.she recently built an addition to it. The garage is still a​ squar
Arturiano [62]

Answer: 19

If the floor space of the garage is increased by 50%, that means its area is increased by that amount

So we have 228 + .50(228) = 228 + 114 = 342 ft²

Since the original garage is square-shaped with an area of 228 ft², then we can find the length of each side. If we let x = the side length, then we have:

x² = 228

x = 15.1 ft

Assuming that the garage will remain square-shaped with sides of uniform dimensions, then we can label each side of the expanded garage as 15 + y. We need to solve for y. Again, we use the area formula. Remember that the expanded garage will have an area of 342 ft², we now have:

(y + 15)² = 342

y² + 30y + 225 = 342

y² + 30y - 117 = 0

This can be solved using the Quadratic Formula. Remember that dimensions must always be positive. Once you determine y, then you will know what the length will be of the expanded garage

8 0
2 years ago
Sean is paid biweekly. His annual salary is $42,500. What is his biweekly salary to the nearest cent?
Inga [223]
He will receive 26 paychecks per year.
3 0
3 years ago
Read 2 more answers
Plz help me with these problems
elena-14-01-66 [18.8K]

Answer: number 16 is d

number 20 is d

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Other questions:
  • A circle is inscribed inside a square as shown. If graphed on the coordinate plane, the coordinates of the center of the circle
    8·2 answers
  • a school soccer field is being dug up and covered with new sod grass which is the best estimate of the total amount of sod grass
    7·1 answer
  • Rewrite the expression with rational exponents as a radical expression by extending the properties of integer exponents.
    13·2 answers
  • Simplify the expression.<br> –8(c – b)<br> A) b – 8c<br> B) –8c + 8b<br> C) c – 8b<br> D) 8c – 8b
    8·1 answer
  • Using the graphs below, identify which value of the correlation coefficient, best describes
    10·1 answer
  • -1. What are some instruments that you know of that we
    15·1 answer
  • If the product of two number is 10 and the sum is 7 ,then the longest of the two number is​
    5·1 answer
  • Solve for a.What is the first step in solving for a?
    9·1 answer
  • Freddie is reading a book that has
    10·1 answer
  • Three friends just out of culinary school have applied for a loan to open a new restaurant in the heart of New York City. The ba
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!