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olga55 [171]
2 years ago
5

Erik is performing a marble experiment in math class. His teacher places an equal number of black, red, and white marbles in a b

ag. Then, Erik randomly takes out a marble, records the result, and puts the marble back in the bag. Each of the first four times Erik takes out a marble, he gets a black marble. A. What is the theoretical probability of Erik picking a black marble next time
Mathematics
1 answer:
olganol [36]2 years ago
5 0

Answer:

1/3

Step-by-step explanation:

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If not, depends on the graph you're talking about.

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Solve eqaution 15m+22=-7m+18
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It will beee 22/4 :)....

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a dive ring at the bottom of the pool is 10 feet below the surface of the water. sabine dives down and brings the ring back to t
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-10 feet below the surface of the water

Step-by-step explanation:

We are told that the dive rings position at the bottom of the pool is 10 feet below the surface of the water.

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Students in an environmental science class raised money to buy plants for a community garden. The students raised money by selli
finlep [7]

Answer:

50 gluten-free cupcakes and 100 regular cupcakes.

Step-by-step explanation:

Let's define the variables:

R = number of regular cupcakes sold

G = number of gluten-free cupcakes sold

The total amount of money raised then is:

M = R*$2.00 + G*$3.00

We also know that:

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then:

R = 2*G

And we also know that the amount of money raised is $350

Then we have the equations:

R = 2*G

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We can replace the first equation into the second one, so we have only one variable:

(2*G)*$2.00 + G*$3.00 = $350

Now we can solve this for G.

G*$4.00 + G*$3.00 = $350

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We can conclude that 100 regular cupcakes were sold.

3 0
2 years ago
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