You have a bag full of 17 marbles. Of those marbles, 3 are black. What is the probability that a marble chosen is not black? A. 1/3 B. 1/17 C. 14/17 D. 3/17

Answers

Answer 1

Answer: C.: The answer is C because the probability that the marble chosen WILL be black is choice D: 3/17. However, the question is asking what the probability is that a marble chosen is NOT black. Therefore, you do 17-3 and get 14. So, the answer is 14/17: C.

Answer 2

Answer: C. 14/17

17-3=14
There are 14 non-black marbles.

14/17

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There are 100 gumdrops 73 are large 39 of them are red and 19 are large red you choose 1 what is the probability it is red and large

Answers

the probability is 19 of 100

The length of a rectangle is 5 centimeters less than twice its width. The perimeter of the rectangle is 80 cm. What are the dimensions of the rectangle?length = 25 cm; width = 15 cm
length = 22 cm; width = 18 cm
length = 24 cm; width = 16 cm
length = 23 cm; width = 14 cm

Answers

Answer:

Length = 25 cm , Width = 15 cm.

Step-by-step explanation:

Given : The length of a rectangle is 5 centimeters less than twice its width. The perimeter of the rectangle is 80 cm.

To find : What are the dimensions of the rectangle.

Solution : We have given

Perimeter = 80 cm .

According to question :

Let width of rectangle = W .

Length is twice its width.

L = 2W .

Length of a rectangle is 5 centimeters less than twice its width.

L = 2W - 5.

Then ,

Perimeter = 2 ( length + width).

Plug the values

80 = 2 ( 2W - 5 + W ) .

80 = 2( 3W -5) .

On dividing both sides by 2

40 = 3W - 5 .

On adding both sides by 5.

45 = 3 W .

On dividing both sides by 3.

W = 15 cm .

L = 2W - 5.

L = 2 ( 15) - 5 .

L = 30 -5 .

L = 25 cm .

Therefore, Length = 25 cm , Width = 15 cm.

Hello,

Answer A
Let's the width of the rectangle

2a-5 its length
Teh half perimeter is 80/2=40
a+2a-5=40 ==>3a=45==>a=15 and 2a-5=30-5=25

Describe how to write 3x + 2y = 12

Answers

Subtract 3x from both sides of the equation and you should end up with 2y=-3x+12 After that divide 2y by everything which would give you y=-3x/2+6 I believe that's how to solve it

How do you can you solve this problem 37 + y = 87; y =

Answers

37+y=87
y=87-37
y=50
............................

Hi there! :)

Answer:

y=50

*The answer must have a positive sign.*

Step-by-step explanation:

First, you switch sides.

$y+37=87$

Then, you subtract by 37 from both sides of an equation.

$y+37-37=87-37$

You subtract by the numbers from left to right.

$87-37=50$

Final answer is y=50

Hope this helps!

Thanks!

-Charlie

Have a nice day! :)

Two friends leave school at the same time, Sarah is heading due north and Beth is heading due east. One hour later they are 10 miles apart. If Sarah had traveled 8 miles from the school, how many miles had Beth traveled?6 miles
10 miles
8 miles
4 miles

Answers

If you picture this scene in your head, you will get a simple 3x4x5 right triangle. 4 times 2 is 8, 5 times 2 is 10, so Sarah should, by now, have traveled 3 times 2 miles.
Final answer: Sarah has traveled 6 miles after an hour.
Hope this helped! :)

Helping tip: The reason it is not 4 is because they are not traveling west and east away from each other. They are traveling north and east, so they are moving in two directions to form a right triangle, and the hypotenuse would be 10 (miles). The side, or distance, that Beth has traveled is 8. So as this is a typical variation of a 3x4x5 triangle, Sarah will have traveled 6 miles.

wouldn't it actually be 2 miles but since its not listed I would say 4 because if there 10 miles apart and Sarah is 8miles from the school were they both started then 10-8=2. or you can take the two and divide it by 8 and get 4

What is not the sum to 13

Answers

Answer:

Step-by-step explanation:

3 plus 3 is not 13

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The price of a silk scarf is $32. The sales tax is $1.92. What is the sales-tax rate?

Which statements are true of the function f(x) = 3(2.5)x? Check all that apply.The function is exponential.The initial value of the function is 2.5.The function increases by a factor of 2.5 for each unit increase in x.The domain of the function is all real numbers.The range of the function is all real numbers greater than 3.

Identify the solution set of the inequality using the given replacement set x < –2; {–5, –2.6, –2, –0.8, 1, 1.5}. A. {–5, –2.6} B. {–5, –2.6, –2} C. { –2, –0.8, 1, 1.5} D. {–0.8, 1, 1.5}