What is 18/42 in it's simplest form?

Answers

Answer 1

Answer: $(18)/(42)=(3\cdot6)/(7\cdot6)=(3)/(7)$

Answer 2

Answer: Well, you can divide both numbers by 6.
18/6=3
42/6=7.
You have the simplest form in the simplest way!!
Your answer is 3/7.
Hope this helped!!

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Helena uses a mixture of compost and topsoil in her garden. She purchased a total of 10 cubic yards of compost and topsoil for $180. If compost costs $25 per cubic yard and topsoil costs $15 per cubic yard, how many cubic yards of topsoil did she purchase?A.)3
B.)4.5
C.)5.5
D.)7

Answers

Answer:

7 cubic yard

Step-by-step explanation:

Let the compost purchased be x cubic yard

And the topsoil purchased be y cubic yard

Hence

x+y=10 ----(A)

Also

Cost incurred in buying compost at a rate of $25 per cubic yards = 25x

Cost incurred in buying topsoil at a rate of $15 per cubic yards = 15y

Total cost incurred = 25x+15y=180

Diving whole equation by 5 we get

5x+3y=36 ----(B)

Multiply A by 3 and subtract it from B

5x+3y=36

- - -

3x+3y=30

_______

2x=6

x=3

Putting this value in A

x+y=10

3+y=10

y=10-3=7

Hence she purchased 7 cubic yards of topsoil.

Answer:

to make it short, its D

Step-by-step explanation:

got it right on Edge

The table shows the results of drawing colored marbles from a bag. Based on theoretical probability, which is the best prediction for the number of times a blue marble would be drawn in 1000 trials?

A.
150

B.
200

C.
250

D.
300

Answers

c.250 because if you add all of them it is 1/4 that blue would be drawn
or b. 200 because of the times its shown that its bin drawn it is a 1/5 from the chart

Sibyl has seen four more films than Linda. Linda has seen twice as many films as Joel. If Sibyl has seen s films, then in terms of s, what expression can represent the number of films Joel has seen? Can you please explain it?

Answers

If Sibyl has seen 4 more films than Linda, then Linda has seen 4 less films that Sibyl. So, you can write the expression L (Linda)=S-4.
If Linda has seen twice as many films as Joel, then Joel has seen half the films that Linda has seen. So you can write this at J=1/2L.
If L=s-4, then the number of films Joel has seen can be written as 1/2(s-4).
I hope this helps!

PLEASE HELP! I WILL MARK YOU AS BRAINLIEST!

Answers

number three the first one number 4 the 3rd one

wade wants to buy sweaters. He has $175 and each sweater costs $12.00. Write and solve an inequality to find how many sweaters he can buy and still have at least $55.

Answers

Wade wants to have at least $55 left, so the sign will be ≤ (greater than or equal to 55) One sweater costs $12. You can use x to represent an unkown number of sweaters, so $12x. You are subtracting 12x by your budget of $175. When put together, the inequality is $175-$12x ≤ $55.Now to solve. You want to get x alone so subtract 175. You must do this to both sides. Now you have -12x≤ -120. Divide both sides by -12 and your final answer is -120/-12 ≥ 10. (Notice the sign changes when you divide by a negative)So Wade cannot buy more than 10 sweaters to have $55 left over. Phoo that was a workout. It can be difficult but once you get the hang of it it comes easy. If you need more help just ask :D

X is the number of sweaters Wade buys.
175$-12x≥55$.
Solve the equation to get X = 10 sweaters.

What does P(B/A) represent?

Answers

Answer:

Choice D

Step-by-step explanation:

probability of B given A

given you win the first race, you win the second race

Answer: The correct option is

(D) The probability that you win the second race given that you win the first race.

Step-by-step explanation: We are given the following two events :

A : You win the first race

B : You win the second race.

We are given to select the statement that represents P(B\A).

We know that

for any two events R and Q, the probability P(Q\R) represents the probability of happening of event Q given that the event R has already happened.

Therefore, for the given two events A and B,

the probability P(B\A) represents the probability that you win the second race given that you win the first race.

Thus, (D) is the correct option.

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