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Tcecarenko [31]
3 years ago
13

John has 8 coins, all of which are quarters and nickels. In all, they're worth $1.00. How many of each kind of coin does John ha

ve?
Mathematics
1 answer:
Nastasia [14]3 years ago
4 0

Answer:

you will need 3 quarters and 5 nickel  

Step-by-step explanation:

3 quarters is 75     and 5 nickels is 25 =1.00

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The number of potato chips in a bag is normally distributed with a mean of 74 and and a standard deviation of 4. Approximately w
aleksklad [387]

Answer:

99.8%  is the percent of bags contain between 62 and 86 potato chips.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 74

Standard Deviation, σ = 4

We are given that the distribution of number of potato chips in a bag is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P( bags contain between 62 and 86 potato chips)

P(62 \leq x \leq 86) = P(\displaystyle\frac{62 - 74}{4} \leq z \leq \displaystyle\frac{86-74}{4}) = P(-3 \leq z \leq 3)\\\\= P(z \leq 3) - P(z < -3)\\= 0.999 - 0.001 = 0.998 = 99.8\%

P(62 \leq x \leq 86) = 99.8\%

7 0
2 years ago
Read 2 more answers
5. PLEASE HELP
lana66690 [7]

Answer:

The potential energy of the ball having 2kg mass would be 392 J

Step-by-step explanation:

I am assuming the ball has a mass of 2 kg, as you have not mentioned the mass of a ball.

Considering the formula for calculating the gravitational potential energy

G.P.E\:=\:m.g.h

As

m = 2 kg

Acceleration of gravity = g = 9.8 ms^{-2}

As the ball is on the height = h = 20 meters

So,

G.P.E\:=\:(2)(9.8)(20)

G.P.E\:=392 J

Therefore, the potential energy of the ball = 392 J

Keywords: potential energy, Gravitation potential energy

Learn more potential energy from brainly.com/question/14022793

#learnwithBrainly

5 0
3 years ago
WILL MARK YOU BRAINLIEST!!!!
Ad libitum [116K]

Answer:

the slope would be 0

Step-by-step explanation:

3 0
3 years ago
2.5kg of popcorn and eat 75"g of it how much popcorn is left
Delvig [45]
1k=1000g is your answer

5 0
3 years ago
What kind of rotations that has been made to this figure?
saul85 [17]

Answer:

bark

Step-by-step explanation:

bark bark nooo I'm sorry I need points for my question ❤️

3 0
3 years ago
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