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Lorico [155]
3 years ago
6

A jar contains only black and white marbles. When one marble is drawn at random, the probability that it is white is 1/3. After

20 black marbles were added to the jar, the probability of drawing a white was 1/5. How many marbles were in the jar originally?
Mathematics
1 answer:
KonstantinChe [14]3 years ago
6 0

there are 30 marbles in the jar originally

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A car is traveling at 50 mph. How long does it take the car to travel 250 miles?
LenaWriter [7]
Divide total distance traveled by speed to find the total time.

250 miles / 50 miles per hour = 5 hours
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4 years ago
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If E=[-1,0,1,2,3,4] and F=[3,4,5,6,7,8] what is E U F?
KatRina [158]

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7 0
3 years ago
I NEED HELP WITH QUESTION 2 ONLY (GIVING BRAINIEST) 50 points
Finger [1]

Answer:

5x-15=x+13

Step-by-step explanation:

I don't know which equation you want me to simplify, so I assume it is, 5(x – 3) = x + 13?

6 0
2 years ago
3. Ms. Turner's garden has side lengths of V17 yards and V24 yards.
Sloan [31]

Answer:

Mr. Webster's garden is greater than Ms. Turner's garden by 282 sq. yards.

Step-by-step explanation:

Representing the length of the garden by l and width of the garden by w.

For turner's garden, given that l= 24 yards and w= 17 yards.

As the area, A, of the rectangular garden having  length l and width w is

So, the area of Ms. Turner's garden, = 24x17=408 sq. yards

For turner's garden, given that l= 5 yards and w= 138 yards.

So, by using equation (i),

the area of Mr. Webster's garden, = 5x138=690 sq. yards

Here, A_2 > A_1, and  

= 690-408= 282 sq. yards.

Hence, Mr. Webster's garden is greater than Ms. Turner's garden by 282 sq. yards.

6 0
3 years ago
I will rate you the brainliest ‼️
Juliette [100K]
The answer is B.
Best of luck.
4 0
4 years ago
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