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3 years ago

Explain why in a drawer containing only two different colors of socks one must draw only three socks to find a matching pair.

2 answers:

8 0

In the drawer you have a total of 4 socks: the one you already have, two of a different color and one of the same color of the first sock. If the first two socks you draw are of a different color, the third one will surely be of the color of the first sock.

lana66690 [7]3 years ago

7 0

There are two different colors of socks, so in the worst case scenario you can draw two different socks. Therefore you need to draw one more sock of any color to have a matching pair.

2+1=3 :)

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PLZ HELPPPP

Zolol [24]

Answer:

Step-by-step explanation:

3x-4<8

3x<12

x<4

2x+2>4

2x>2

6 0

3 years ago

The total surface area of a cube is 96cm2, find its volume.

Setler [38]

Answer:

$\huge\boxed{V=64cm^3}$

Step-by-step explanation:

The formula of a surface area of a cube:

$SA=6a^2$

The formula of a volume of a cube:

$V=a^3$

We have

$SA=96cm^2$

Calculate the edge length (<em>a</em>).

$6a^2=96$ <em>divide both sides by 6</em>

$a^2=16\to a=\sqrt{16}\\\\a=4(cm)$

Calculate the volume of a cube:

$V=4^3=64(cm^3)$

6 0

3 years ago

A college writing seminar increased its size by 50\PP, percent from the first to the second day. If the total number of students

Jobisdone [24]

Answer: There were 10 students in the class on the first day.

Step-by-step explanation:

Let x be the number of students of the first day.

Given: A college writing seminar increased its size by 50 percent from the first to the second day.

i.e. Number of students on second day = (Number of students on first day)+(50% of Number of students on first day)

= x +50% of x

= x+0.50x

= (1.50)x

=1.50x

Since, it is given that the total number of students in the seminar on the second day was 15.

i.e. $1.50x=15$

$\Rightarrow\ x=\dfrac{15}{1.5}\Rightarrow\ x=\dfrac{150}{15}\\\\\Rightarrow\ x=10$

Hence, there were 10 students in the class on the first day.

7 0

3 years ago

What is 0.8 as a fraction???? Plz answer is u r right I’ll give u brainliest!!!!

const2013 [10]

<h2> $\red { \orange {\boxed {\boxed{Answer}}}}$ </h2><h2> $= 0.8$ </h2><h2> $= \frac{8}{10}$ </h2><h2> $= \frac{8 \div 2}{10 \div 2}$ </h2><h2> $= \frac{4}{5}$ </h2>

#IfWrongPleaseReport

#StudyTogetherWithMe

#ILoveMath

8 0

3 years ago

Read 2 more answers

Miss watson runs a distance of 200 metres in 25 seconds.

Maksim231197 [3]

S=d÷t

200m÷25S

=8m per s

5 0

3 years ago