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anyanavicka [17]
3 years ago
12

A bag contains 10 black, 15 white, and 25 blue marbles. What is the probability of randomly selecting one

Mathematics
1 answer:
gulaghasi [49]3 years ago
4 0

Answer: 0.8 or 80%

Step-by-step explanation:

First find the total number of marbles:

10 + 15 + 25 = 50 marbles total

To find the number of marbles that are not black:

15 + 25 = 40 marbles that are not black

Set up ratio:

\frac{40}{50} = 0.8 or 80%

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The figure shown is a semicircle. Find its area. Round your solution to 2 decimal places.
Leona [35]

Answer:

12.5 pie , 39.25 using pie=3.14, and 39.28 to be exact

Step-by-step explanation:

BTW n=pie

10in= Diameter

5in=Radius

Area=n5^2

= 25n/2

=12.5n

12.5 times 3.14= 39.25

22/7 times 12.5= 39.2857143

7 0
3 years ago
Gail Martinez is employed at My Best Books. She has family medical coverage through the group medical plan that My Best Books pr
xxMikexx [17]

Answer:

$1850

Step-by-step explanation:

The annual cost of Martinez's family membership for medical insurance is $3,900.

The company pays 50% of the cost.

So, the cost paid by the company= 50% of $3,900.

=\frac {50}{100}\times 3900=\$1850

The remaining cost for the family medical insurance must be paid by Gail Martinez.

So, the annual payment by her =$3900-$1850=$1850

Hence, she pays $1850  annually for medical insurance.

5 0
3 years ago
PLEASE HELP WHAT IS THE GREATEST INTEGER THAT ALWAYS DIVIDES THE DIFFERENCE OF SQUARES OF ANY TWO POSITIVE ODD INTEGERS PLEASEEE
cestrela7 [59]
I believe it’s 1 the answer
4 0
3 years ago
Please help asap, it would be much appreciated!! :) Thank you so much!!
LiRa [457]

Statement 1 is false.

While it is true that some of the y-values have more than one corresponding x-value, this does not make the relation not a function.  It would not be a function if some of the <em>x-values</em> had more than one corresponding y-values.

Statement 2 is true.

The domain of a function is all the x-values it encompasses.  This function starts at 3 and ends at 8.

Statement 3 is false.

The range of a function is all the y-values it encompasses.  This includes all the y-coordinates, but it does not express the range properly.  The range is [6, 10].

Hope this helps!!

5 0
3 years ago
Your credit card has a balance of ​$5200 and an annual interest rate of 12​%. You decide to pay off the balance over five years.
nordsb [41]

Answer:

Step-by-step explanation:

Total amount = $5200

Annual interest rate=12%of $5200=

$624

Each month payment=$624/12=$52

Total interest over 5 years =$624×5=$3120

7 0
3 years ago
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