2 years ago

There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag.

Mathematics

2 answers:

lesya692 [45]2 years ago

7 0

Answer:

is 28 because is probablity

Step-by-step explanation:

yes

Fynjy0 [20]2 years ago

3 0

Answer:

28%

Step-by-step explanation:

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Within 11 years, the age of Peter will be half the square of the age he was 13 years ago. Calculate the current age of Peter. Re

OLga [1]

Answer:

ctto JBarnum

Step-by-step explanation:

P+11=(1/2)(P-13)^2

P+11=(1/2)(P^2-26p+169)

2(P+11)=(1/2)(2)(P^2-26p+169)

2P+22=P^2-26p+169

0=P^2-28p+147 ( -7 and -21)

(P-7)(P-21)=0

P=7,21 (cant be 7 as 13 years from 7 is negative so peter is 21)

checking:

21+11=32

32=(1/2)(21-13)^2

32=(1/2)(8)^2

32=(1/2)64

32=32

correct

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3 years ago

A cash register contains $10 bills and $100 bills with a total value of $2010. If there are 30 bills total, then how many of eac

finlep [7]

Answer:

there will be 19 $100 bills

and 11 $10 bills

Step-by-step explanation:

$100*19=1900\\10*11=110\\1900+110=2010$

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3 years ago

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Camila sets up a passcode on her tablet, which allows only nine-digit codes. A spy sneaks a look at Camila's tablet and sees her

laila [671]

Answer:

$\frac{1}{10^9}$ probability the spy is able to unlock the tablet on his first try.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

1 correct password, so $D = 1$

Total outcomes:

Nine-digit codes.

For each digit, there are 10 possible outcomes. So

$T = 10^9$

What is the probability the spy is able to unlock the tablet on his first try?

$p = \frac{D}{T} = \frac{1}{10^9}$

$\frac{1}{10^9}$ probability the spy is able to unlock the tablet on his first try.

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3 years ago

Ashton has an offer to buy an item with a sticker price of $4900 by paying

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B
The correct answer is b

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3 years ago

I worked it out as 11x^2 over 12y but I'm doubtful. <br><br> Thank you for helping!

elena-14-01-66 [18.8K]