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Varvara68 [4.7K]

3 years ago

12

12. A bucket contains 40 yellow golf balls and 30 white golf balls. You randomly choose a ball, hit it toward the flag, then ran

domly choose another ball. Find the probability that the first ball is white and the second ball is yellow.
help pls I'm abt to fail this class

1 answer:

natima [27]3 years ago

5 0

Answer:

1476

Step-by-step explanation:

Because

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In investing $6,200 of a couple's money, a financial planner put some of it into a savings account paying 4% annual simple inter

ddd [48]

Answer:

$ 2,600 was invested at 4% and $ 3,600 was invested at 9%.

Step-by-step explanation:

Given that in investing $ 6,200 of a couple's money, a financial planner put some of it into a savings account paying 4% annual simple interest, and the rest was invested in a riskier mini-mall development plan paying 9% annual simple interest, and the combined interest earned for the first year was $ 428, to determine how much money was invested at each rate, the following calculation must be performed:

3000 x 0.04 + 3200 x 0.09 = 408

2500 x 0.04 + 3700 x 0.09 = 433

2600 x 0.04 + 3600 x 0.09 = 428

Therefore, $ 2,600 was invested at 4% and $ 3,600 was invested at 9%.

7 0

3 years ago

Quick! Andrew has to play 15 games in a chess tournament. At some point during the tournament he has won half of the games he ha

nikklg [1K]

$x$ - the number of the games he played

$\dfrac{x}{2}$ - the number of the games he won

$\dfrac{x}{3}$ - the number of the games he lost

$x=\dfrac{x}{2}+\dfrac{x}{3}+2\Big|\cdot6\\6x=3x+2x+12\\x=12$

$15-12=3$

<u>so, he has still 3 games to play</u>

3 0

3 years ago

Find x,<br>45x - 15x = 300

Sidana [21]

Answer:

x = 10

Step-by-step explanation:

45x - 15x = 300

Combine like terms

30x = 300

Divide each side by 30

30x/30 = 300/30

x = 10

7 0

4 years ago

marianne buys 16 bags of potting soil that comes in 5/8 lb. bags. how many pounds of potting soil foes she has.

andriy [413]

One bag of soil is 5/8 pounds.
you have 16 of them.
just multiply 16 by 5/8.
you could just type it into your calculator, or you could do it the long way:
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she has 10 pounds of potting soil.

8 0

4 years ago

Two mechanics worked on a car. the first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. together they

Ksenya-84 [330]

Alright, lets get started.

Suppose first mechanic charges= x

So, second mechanic charges will be = $(125 - x)$ (because total of their rates was 125)

first mechanic worked for 5 hours, and the second mechanic worked for 15 hours and together they charged a total of $1225

Means

$5 x + 15 (125-x) = 1225$

$5 x + 1875 - 15 x = 1225$

$1875 - 10 x = 1225$

Adding 10 x in both sides

$1875 - 10 x + 10 x = 1225 + 10 x \\1875 = 1225 + 10 x$

Subtracting 1225 from both sides

$1875 - 1225 = 1225 + 10 x - 1225\\650 = 10 x$

Dividing 10 in both sides

$\frac{650}{10} = \frac{10x}{10}$

x = 65

For second mecahnics rate = 125 - 65 = 60

Hence The mechanic who worked 5 hours charged $ 65 per hour, the one who worked 15 hours charged $ 60 per hour: Answer

Hope it will help :)

3 0

4 years ago