Jenna has a bag that contains 7 red marbles and 25 blue marbles. She selects a marble at random, and then, without replacing the first one, selects another marble at random.What is the probability that Jenna selects a blue marble and then a red marble? Round your answer to the nearest percent.

P(blue and red) ≈ %

Answers

Answer 1

Answer: Jenna has a bag that contains 7 red marbles and 25 blue marbles.
She selects a marble at random, and then, without replacing the first one, selects another marble at random.
Let's find out the probability that Jenna selects a blue marble and then a red marble?
=> blue marble probability = 1/32
=> red marble = 1/31
Round to the nearest percentage = 3%

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Jared is redoing his bathroom floor with tiles measuring 6 in. by 14 in. The floor has an area of 8,900 in. What is the least number of tiles he will need?

Answers

The least number of tiles Jared will need, if Jared is redoing his bathroom floor, with tiles measuring 6 in. by 14 inches, The floor has an area of 8,900 in, which is 106.

What is the area?

An object's area is how much space it takes up in two dimensions. It is the measurement of the number of unit squares that completely cover the surface of a closed figure.

Given:

The measure of tiles = 6 in. by 14 in. ,

The area of the floor = 8900 inches²,

Calculate the area of the tiles as shown below,

Area of tiles = 6 × 14

Area of tiles = 84 inches²

Calculate the number of tiles as shown below,

Number of tiles = The area of the floor / Area of tiles

Number of tiles = 8900 / 84

Number of tiles = 105.9 = 106

To know more about Area:

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Firstly we need to find an area of a single tile:

6 * 14 = 84 square inches

Now we just need to find out how many tiles of 84 square inches will fit in an area of 8900 square inches:

8900 ÷ 84 = 105,952380952381

Assuming we can't cut a tile into pieces, we may round the result to 106.

Answer: The least number of tiles Jared will need is 106.

What is the probability that both spinners will land on the same number?

Answers

First, I'm not sure if this at all correct but um, I counted up all the pieces in both circles and there are 9 pieces in total. Since both circles have 1, 2, and 3 as the same numbers, there are 1 of each in the circles, so the probability is 2 over 9. Hope that helped and good luck! :]

What is the slope??????

Answers

slope is how much a line goes up in ratio to how much the line goes to the right
(rise) / (run)
(y2 - y1) / (x2 - x1) when given points (x1, y1) and (x2, y2)
every time you go to the Right 1 unit, how much it goes Up is the slope
(if it is down, the slope is negative)

The APR of Burt's savings account is 2.5%, but interest is compounded onlyonce a year. What is the APY of Burt's savings account?
O
A. 2.5%
O
B. 1%
O
C. Greater than 1% but less than 2.5%
O
D. Greater than 2.5%

Answers

Annual Percentage Yield (APY) of Burt's savings account is 2.5%

Step-by-step explanation:

Annual percentage rate refers to the annual percentage return of the saving account held by Burt's. The interest rate is compounded annually. Hence, the interest is added annually to the account.

Annual Percentage yield refers to the real rate of return that is earned on the savings. This interest is accrued in compounding fashion. Higher the interest rate more is the amount returned.

Hence, the Annual Yield of the Burt's savings account is 2.5%

Answer:

A. 2.5%

Step-by-step explanation:

Express the series using sigma notation. 6 + 9 + 12 + 15.