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laiz [17]
3 years ago
6

Dobby the house-elf has dropped all his socks on the floor in the middle of the night! He has 30 red socks, 22 gold socks and 14

black socks. How many socks would he have to pick up before getting a matching pair?
Mathematics
1 answer:
Ugo [173]3 years ago
3 0
There is a total of 66 socks on the floor the chance of picking up a red sock is 30 in 66 which is equal to a 45% chance.  After picking up one sock the chances of getting another red sock is 29 in 65 which is around 44%.  Now I believe your answer is 45% or around 30 socks.  I hope this helped but please let me know.
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Mitch is buying candy bars for his friends. He wants to give 2 bars to each friend, and wants to have 10 spare bars. He can affo
kondaur [170]

Answer:

Mitch can give 2 candy bars to 13 friends

Step-by-step explanation:

first, since he wants 10 left over, you subtract 36-10 which is 26. Then, since he wants to give each friend 2 candy bars, you divide 26 by 2 which equals 13.

3 0
3 years ago
Find the slope and the y-intercept of the line in the graph.​
Radda [10]

The slope is 2. The y-intercept is 4.

Explanation:

The line constantly goes up to units for every unit that it goes to the right. The y intercept is 4 because it is 4 on the y-axis when x is 0.

8 0
3 years ago
Read 2 more answers
Write the equation of a line that is perpendicular to y = –x-6and that passes through the point
defon

Answer:

y = x + 5

Step-by-step explanation:

Perpendicularity: Slope is the opposite reciprocal. In this case with it being -1 aka -1/1, the slope will be 1 aka 1/1

Find the opposite reciprocal of the slope

m = -1 = -1/1

so,

m⊥ = 1 as the opposite reciprocal is 1/1

2 - Plug the new slope into y = mx + b

y = mx + b

y = 1x + b

y = x + b

3 - Plug the point values in replacing x and y to get alone and solve for the y intercept, b.

 y = x + b

-4 = -9 + b

+9  +9

5 = b

4 - Plug into the values into y = mx + b all together

y = mx + b

y = 1x + 5

y = x + 5

Hope this helps :)

8 0
3 years ago
Sara charges $10 an hour to babysit one child. Each additional child is an extra $2. How much will Sara charge to babysit three
Masja [62]

Answer:

70

Step-by-step explanation:

7 0
3 years ago
What is the answer to this problem ?
Margarita [4]
If something is to the power of 1/2, it is the same as the square root of that number. So, what's the square root of 49?
5 0
3 years ago
Read 2 more answers
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