All categories

3 years ago

There are 3 white counters and 1 black counter in a bag. what is the probability that I take out a black counter?

Mathematics

1 answer:

Oksanka [162]3 years ago

5 0

Answer:

1/4

Step-by-step explanation:

Favorable events/total events

favorable: 1 black counter

total: 1+3=4

You might be interested in

140 fluid ounces increased by 45%

Stels [109]

Hello!

"Increase" means to add. We must find out what 45% of 140 fluid ounces is, and to do that we must first convert the percentage to a decimal and then multiply it by the amount of fluid ounces.

I know, that's probably a lot to take in! :D

45% ÷ 100 = 0.45 as a decimal

0.45 × 140 = 63

Add this to the amount of fluid ounces:

140 + 63 = 203

Final Answer:

203 fluid ounces.

5 0

3 years ago

Read 2 more answers

What is the range of y = (x - 5)^2 – 1?

Setler79 [48]

1. The graph is a parabola.

2. The parabola opens up, because there's no negative number in front of $(x-5)^2$ .

3. The vertext is (5,-1), because of the vertex form.

This means that that -1 will be the least y-value used on the graph and the garph will open up from there.

The range is (-1, infinity) or { y | y > -1 }.

8 0

3 years ago

What is the value of x in the triangle?

Firdavs [7]

$▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪$

The value of x is ~

$\boxed{5 \sqrt{3} }$

$\large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}$

The Triangle stated in the diagram is a right angled Triangle, so

$\tan(30) = \dfrac{x}{15}$

$\dfrac{1}{ \sqrt{3} } = \dfrac{x}{15}$

$x = \dfrac{15}{ \sqrt{3} }$

$x = 5 \sqrt{3}$

4 0

3 years ago

Solve the system using elimination. x + 2y = –6 3x + 8y = –20 (–4, –1) (–4, 4) (–1, –4) (3, 1)

Orlov [11]

$x + 2y = - 6 > > > 3x = - 18 - 6y$
$- 18 - 6y + 8y = - 20 > > > 2y = - 2 > > y = - 1$
so x=4

6 0

4 years ago

Read 2 more answers

The scale of a park map says that 2 cm represents 6 km. What is:

andrew11 [14]

The scale can translate just by division if we get it down to what 1 cm equals. 1 cm=3 km, so with this given information you can find:

A)
3 Cm=9 Km

B)
1=3, times both sides by 5 that is 5 Cm= 15 Km

3 0

4 years ago