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4vir4ik [10]
3 years ago
6

A bag contains 4 types of coins. - 2 Pennies - 2 Nickels - 2 Dimes - 4 Quarters A coin will be randomly selected from the bag. W

hat is the probability in decimal form the coin selected will be a quarter? (Hint: Write your probability as a fraction first, then convert to a decimal.)
Mathematics
1 answer:
Viefleur [7K]3 years ago
7 0

Answer:

0.4

Step-by-step explanation:

possible outcomes = 2+2+2+4=10

favourable = 4

4/10 = 2/5

2/5 = 0.4

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HELP ME ASAP! Will give BRAINLIEST! Please read the question THEN answer correctly! No guessing. Check ALL that apply.
Elena L [17]

Answer:

x = -2 or x = 1/3 thus: B & C

Step-by-step explanation:

Solve for x over the real numbers:

2 x^2 + 7 x - 2 = 2 x - x^2

Subtract 2 x - x^2 from both sides:

3 x^2 + 5 x - 2 = 0

The left hand side factors into a product with two terms:

(x + 2) (3 x - 1) = 0

Split into two equations:

x + 2 = 0 or 3 x - 1 = 0

Subtract 2 from both sides:

x = -2 or 3 x - 1 = 0

Add 1 to both sides:

x = -2 or 3 x = 1

Divide both sides by 3:

Answer: x = -2 or x = 1/3

3 0
3 years ago
1500 soldiers arrive at a training camp. A few soldiers desert the camp. The drill sergeants divide the remaining soldiers into
iren [92.7K]

Answer:

The number of deserters is 34.

Step-by-step explanation:

We have to calculate the number of desertors in a group of 1500 soldiers.

The sergeant divides in groups of different numbers and count the lefts over.

If he divide in groups of 5, he has on left over. The amount of soldiers grouped has to end in 5 or 0, so the total amount of soldiers has to end in 1 or 6.

If he divide in groups of 7, there are three left over. If we take 3, the number of soldiers gruoped in 7 has to end in 8 or 3. The only numbers bigger than 1400 that end in 8 or 3 and have 7 as common divider are 1428 and 1463.

If we add the 3 soldiers left over, we have 1431 and 1466 as the only possible amount of soldiers applying to the two conditions stated until now.

If he divide in groups of 11, there are three left over. We can test with the 2 numbers we stay:

(1431-3)/11=1428/11=129.82\\\\(1466-3)/11=1463/11=133

As only 1466 gives a possible result (no decimals), this is the amount of soldiers left.

The deserters are 34:

D=1500-1466=34

6 0
3 years ago
HELP!!!!!!!Choose the graph that matches the following system of equations:
PolarNik [594]
The last one. And I did answer for you too.

4 0
3 years ago
ANSWER PLLLLEEEEAAASSSEEE
Whitepunk [10]

Answer:

30%

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
I need help with numbers 9and 10
AlekseyPX
For monthly membership, the cost must be less than $325. We can set up an inequality:-

100 + 30x < 325            where x = number of months of membership

Solving -

30x < 325-100 = 225

x < 225 / 30

x < 7.5 months

The answer is   7 months.
5 0
3 years ago
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