Ask question

Ask question

All categories

4 years ago

11

Martha had a bag of 10 marbles with 6 blue , and 3 red and 1 green , but she lost one . What is the probability the bag now cont

ains only blue and red marbles.

1 answer:

Nataliya [291]4 years ago

3 0

Answer:

95% chance

Step-by-step explanation:

10+6+3+1=20

1/20=0.05 or 5%

5% chance of the marble being green

100%-5%=95%

You might be interested in

Designer wants to create a whisper chamber in the shape of an ellipse. He has a warehouse space with a longest length of 30 feet

konstantin123 [22]

Answer:

14.48 ft

Step-by-step explanation:

The relation between the location of the focus (c), the vertex on the major axis (a) and the vertex on the minor axis (b) with respect the center is:

b² = a² - c²

From the question:

c = 4 ft

a= 30/2 = 15 ft

Replacing into the equation:

b² = 15² - 4²

b = √209

b = 14.48 ft

So, he should build the whisper chamber at 14.48 ft out from the center along the minor axis

8 0

4 years ago

PLEASE HELP ASAP 30 POINTS!!!

Helen [10]

Answer:

a=1, b=2, c=5, d=1, e=6

Step-by-step explanation:

$\frac{1}{2} \times (2x+4)(x+3)=(x+2)(x+3)=x^2+5x+6\\$

So $a=1, b=2, c=5, d=1, e=6$

7 0

3 years ago

Fabio and Gwen are saving money to buy a new gaming station. They need at least $510 to purchase the new gaming station. Gwen we

Phoenix [80]

<u>Answer-</u>

Set of constraints to model the problem are,

$12x+9y\geq 510$

$y \leq 2x$

$y \geq 25$

<u>Solution-</u>

<em>x = the number of lawns weeded by Gwen,</em>

<em>y = the number of dogs walked by Fabio.</em>

1.

As, Gwen charges $12 each time she weeds a yard and Fabio charges $9 each time he walks a dog,

$\text{Earnings of Gwen} = 12x$

$\text{Earnings of Fabio} = 9y$

$\text{Total earning} = 12x+9y$

They need at least $510 to purchase the new gaming station, means they need $510 or more than $510.

The equation for this is,

$12x+9y\geq 510$

2.

The number of dog walks that Fabio has scheduled is no more than twice the number of yards Gwen has scheduled to weed, means

y must be less than or equal to 2x.

The equation for this is,

$y \leq 2x$

3.

Fabio will walk at least 25 dogs, means y must be greater than of equal to 25.

The equation for this is,

$y \geq 25$

8 0

3 years ago

Read 2 more answers

Howard planted 20 trees in 4 days. Janet planted 20 trees in 6 days. How long would it take them to plant 20 trees working toget

kipiarov [429]

Answer: I would say 5 days.

Step-by-step explanation:

I added both days together and divided by 2 because there are two individuals working on 20 trees and divided equally it would be 10 and it would take 5 days because that’s half.

6 0

4 years ago

If the sum of -4 and the opposite of a number is multiplied by -3, the result is 6 less than the product of the number and 2. Wh

Igoryamba

-3 (-4 + -x ) = (-4(x) × 2 ) + 6

-3 (-4-x) = (-4x × 2) + 6

-12 + 3x = -8x + 6

3x - 12 = 6 - 8x

add 8x on both sides

11x - 12 = 6

add 12 on both sides

11x = 18

<em><u>x</u></em><em><u> </u></em><em><u>=</u></em><em><u> </u></em><em><u>1</u></em><em><u>1</u></em><em><u>/</u></em><em><u>1</u></em><em><u>8</u></em>

3 0

3 years ago

Read 2 more answers