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madam [21]
4 years ago
11

I NEED HELP PLEASE !!!

Mathematics
1 answer:
murzikaleks [220]4 years ago
8 0

Answer:

The answer is 1.

Step-by-step explanation:

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Solve for n 2n+7=6n-5
rjkz [21]

Answer:

n=3

Step-by-step explanation:

you have 2n+7=6n-5

start with subtracting 2n from both sides giving you 7=4n-5

now take the -5 and add 5 to both sides, giving you 12=4n

now divide both sides by 4, now giving you 3=n

the variable has to be on the left every time you finish your work living with n=3

5 0
4 years ago
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Jeremy has $5.30 in nickels. Which equation can be used to find how many nickels, x, Jeremy has?
lesantik [10]
0.05x=5.30 is the answer
7 0
4 years ago
Read 2 more answers
A group of students and teachers are going on a field trip? One ninth of the group will fit on 1/3 of a school bus. How many bus
solniwko [45]
3/9 will fit on one bus so it will take 3 buses to fit 9/9 of the students, which 9/9 is the whole group.
6 0
4 years ago
Can someone help me on this asap.
Alina [70]

Answer:

<em>-6y = 12</em>

Step-by-step explanation:

      3x - 4y = 7

-     3x + 2y = -5

-----------------------

             -6y = 12

8 0
3 years ago
seven different names are written into sticks and placed into a cup. A stick is chosen 100 times,out of which the name Grace is
NeX [460]

Answer:

The experimental and theoretical probabilities are considerably different. This has to do with the small number of trials. For a higher number of trials, the experimental probability should be very close to the theoretical probability of 0.1429.

Step-by-step explanation:

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

Theoretical probability:

The theoretical probability is calculated without considering previous trials.

Experimental probability:

Calculated considering previous trials.

For a small number of trials, these probabilities can differ, but the experimental probability approximates the theoretical as the number of trials increase.

Seven different names are written into sticks and placed into a cup.

So the theoretical probability of choosing Grace is:

p_T = \frac{1}{7} = 0.1429

A stick is chosen 100 times,out of which the name Grace is chosen 23 times.

So the experimental probability is:

p_E = \frac{23}{100} = 0.23

How do the theoretical probability and experimental probability compare?

The experimental and theoretical probabilities are considerably different. This has to do with the small number of trials. For a higher number of trials, the experimental probability should be very close to the theoretical probability of 0.1429.

6 0
3 years ago
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