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Anarel [89]
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:
Semenov [28]3 years ago
3 0
Only 4 because the only way he cant get a pair is if he picks up a different colour to the previous sock, so by the fourth he will have picked up at two of at least one colour

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The contents of Dana's box of muffins is shown.
TiliK225 [7]
3/5 would be the answer because every 3 banana nut here is 5 corn
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Solve: −4d − 6 = −10
Stels [109]

Answer:

hi

Step-by-step explanation:

- 4d - 6 =  - 10 \\  - 4d =  - 10 + 6 \\  - 4d =  - 4 \\ d = 1

i think so…

8 0
3 years ago
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The ordered pair (a, b) gives the location of point P on the coordinate plane. The values of a and b have
Mama L [17]

Answer:

Since a and b  = (a, b)  = (x, y) have the same sign.....P  will lie either in the 1st quadrant of the Cartesian plane or the 3rd quadrant of the Cartesian plane.  

6 0
3 years ago
A line has a y-intercept at (0,−15) and contains the point (−4,−3). What is the equation of the line in slope-intercept form?
nydimaria [60]

Answer: y=-3x-15

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

y=mx+b

Where "m" is the slope and "b" the y-intercept.

Since the given line  has a y-intercept at (0,-15), then:

b=-15

The formula for calculate the slope is:

m=\frac{y_2-y_1}{x_2-x_1}

Knowing that the given line contains the points (0,-15) and (-4,-3), we can calculate the slope. This is:

 m=\frac{-15-(-3)}{0-(-4)}=-3

Substituting values into y=mx+b, we get that the equation of the line in Slope-Intercept form is:

y=-3x-15

6 0
3 years ago
A line intersects the points (3,-4) and
MrRa [10]

Answer:

y = - 3x + 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁  )

with (x₁, y₁ ) = (3, - 4) and (x₂, y₂ ) = (1, 2)

m = \frac{2+4}{1-3} = \frac{6}{-2} = - 3, thus

y = - 3x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (1, 2), then

2 = - 3 + c ⇒ c = 2 + 3 = 5

y = - 3x + 5 ← equation of line

5 0
3 years ago
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