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murzikaleks [220]
2 years ago
5

I have 3 green cubes, 4 red cubes, 2 black cubes, and 6 yellow cubes. What is the probability that I will randomly choose a blac

k cube, put it back then randomly choose a yellow cube
Mathematics
1 answer:
Strike441 [17]2 years ago
6 0

Answer:

4/75 or 0.05333

Step-by-step explanation:

3+4+2+6=15 elements

2/15= probability to choose a black

6/15 = probability to choose a yellow cube

Probability to choose a black AND (*) a yellow = 2/15*6/15=12/225=4/75 or 0.05333

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There are 15 non fiction books and 37 fiction books in the teacher's collection. Which ratio can be used to express fiction book
viva [34]
I think it might be a.
4 0
3 years ago
The scale on a map is 2cm =25 miles Dave measured the distance to the next town 5cm How many miles away is the next town
denis-greek [22]

First we need to find the measurement for 1 centimetre. To do this, we need to divide the given amount of miles (25) by the given number of centimetres (2).

25 / 2 = 12.5

1 cm = 12.5 miles

Now we need to find the distance of the next town.

If the next town is 5 cm, and 1 cm is 12.5 miles, we need to multiply 12.5 by 5.

12.5 * 5 = 62.5

<h3>So the next town is 62.5 miles away!</h3>

If you are asked to round this to the nearest whole number, it would be 63 miles.

Hope this helped! <em>Brainliest? :)</em>

7 0
3 years ago
(10 POINTS AND BRAINLIEST FOR BEST)
Juli2301 [7.4K]

Answer:

7%

Step-by-step explanation:

14+Sale tax=14.98

14.98-14=sale tax

14.98-14=0.98

0.98 is the sale tax now we need to find the percent

Let represent t percent

14 of t%=0.98

14*t/100=0.98

we need to use inverse operation to isolate T on one side so if its multiplication we need to do division on both sides to un-due multiplication.

So to move 100 we need to multiply on both sides and we will get

14*t=0.98*100

0.98*100=98

14*t=98

to move 14 we need to divide

14/14=1

we dont need to put 1t becuase t is =1

so we just write it as t

98/14=7

t=7

so Sale tax percent is 7%

6 0
3 years ago
Mrs. Allan's car uses 8 gallons of gas for a 224-mile trip. Mrs. Owen's car uses 6 gallons of gas for a 210-mile trip. How many
Feliz [49]

Answer:

Mrs. Allan's Car will use <u>20 gallons</u> of gas for 560 miles trip.

Mrs. Owen's Car will use <u>16 gallons</u> of gas for 560 miles trip.

Step-by-step explanation:

Given:

Number of Miles for Mrs Allan car = 224 miles

Number of gallons of gas required = 8

We need to find the number of gallons of gas required for 560 miles for Mrs. Allan's car.

First we will find, in 1 gallons how many miles does Mrs Allan's Car drives.

For 8 gallons = 224 miles

So for 1 gallons = Number of miles in 1 gallon of gas

By using Unitary method we get;

Number of miles in 1 gallon of gas = \frac{224}{8}= 28\ miles

Now we know that;

for 28 miles = 1 gallon of gas is required.

So for 560 miles = Number of gallon of gas required in 560 miles.

Again by using Unitary method we get;

Number of gallon of gas required in 560 miles = \frac{560}{28}= 20\ gallons

Hence Mrs. Allan's Car will use <u>20 gallons</u> of gas for 560 miles trip.

Also Given:

Number of Miles for Mrs Owen's car = 210 miles

Number of gallons of gas required = 6

We need to find the number of gallons of gas required for 560 miles for Mrs. Owen's car.

First we will find, in 1 gallons how many miles does Mrs Owen's Car drives.

For 6 gallons = 210 miles

So for 1 gallons = Number of miles in 1 gallon of gas

By using Unitary method we get;

Number of miles in 1 gallon of gas = \frac{210}{6}= 35\ miles

Now we know that;

for 35 miles = 1 gallon of gas is required.

So for 560 miles = Number of gallon of gas required in 560 miles.

Again by using Unitary method we get;

Number of gallon of gas required in 560 miles = \frac{560}{35}= 16\ gallons

Hence Mrs. Owen's Car will use <u>16 gallons</u> of gas for 560 miles trip.

8 0
3 years ago
Which statement correctly describes the expression
pav-90 [236]

Answer:

c

Step-by-step explanation:

choice A means

11 - 2 {m}^{3}

choice B means

2m - 11

choice C means which is the answer

{2m}^{3}  - 11

choice D means

{(2m)}^{3}  - 11

hope it helps ❤❤❤

For any question comment me

3 0
3 years ago
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