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NARA [144]
3 years ago
8

Helpppppppppppppppppp

Mathematics
1 answer:
Sever21 [200]3 years ago
8 0

Answer:

  -1

Step-by-step explanation:

Square both sides of the equation. (That is what is meant by "use the inverse relationship.")

  i^2=(\sqrt{-1})^2\\i^2=\boxed{-1} \qquad\text{simplify}

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Joseph's age is three times that of his sister, Isabella. When you add Joseph's age to Isabella's age, you get 36. How old is Jo
kogti [31]
A: x (isabella)
3x+x=36
b: 3x+x=36
4x=36
x=9
3x=27
c: Joseph is 27 years old.
3 0
3 years ago
Prove your work what is 1/12 of a dozen Branliest
a_sh-v [17]

Answer:

1/12 of a dozen is 1

Step-by-step explanation:

One dozen means 12. If you ask for 1/12 of 12, you multiply 12 and 1/12. You should get 1 as your answer.

4 0
3 years ago
Read 2 more answers
1200 people visited a museum. 240 of the visitors were children. what percent of the visitors were children?​
sergeinik [125]

Answer:

20 percent

Step-by-step explanation:

To find the percentage that were children, we take the number of children over the total and multiply by 100%

There are 240 children and 1200 total people

240/1200 * 100%

.2*100%

20%

5 0
3 years ago
Read 2 more answers
Two communications companies offer calling plans. With Company X, it costs 30¢ to connect and then
tensa zangetsu [6.8K]
<h3>Answer:  n+15</h3>

=======================================================

Explanation:

  • n = number of minutes
  • cost of company X = 3n+30
  • cost of company Y = 2n+15

To find out how much more company X charges, we subtract the two cost expressions

CompanyX - CompanyY = (3n+30)-(2n+15) = 3n+30-2n-15 = n+15 which is the final answer.

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

An example:

Let's say you talk on the phone for n = 20 minutes.

Company X would charge you 3n+30 = 3*20+30 = 90 cents

Company Y would charge you 2n+15 = 2*20+15 = 55 cents

The difference of which is 90-55 = 35 cents.

If you plugged n = 20 into the n+15 expression we got, then n+15 = 20+15 = 35 matches up with the previous 35 cents.

This example helps confirm the answer. I'll let you try out other examples.

8 0
2 years ago
The next model of a sports car will cost 5.8% more than the current model the current model cost 31,000 how much will the price
iren2701 [21]

Answer:

1798 and 32798

Step-by-step explanation:

31000/100=310

310x5.8=1798

8 0
3 years ago
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