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densk [106]
3 years ago
10

Anyone know inverse operations, cause I am confused, I looked online and it said

Mathematics
2 answers:
bija089 [108]3 years ago
8 0

Answer:

For inverse operations, it helps make solving equations easier. Say if you'd rather add than subtract, then you can do the inverse of a negative equation.

Inverse operations are also very helpful for linear equations.

To find the inverse of an equation, we change the plus sign to a negative sign. Then, we switch the first number and the answer.

Ex:

13 - 2 = 11    (now change plus to minus)

13 + 2 = 11      (not the answer yet)

Now we switch the first number with the answer!

11 + 2 = 13

Hope this helped, I tried to explain it easily.

Vesna [10]3 years ago
6 0
11+2=13 that’s the answer maybe
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If Sarah invests $5,000 into a fund that earns 6% interest compounded annually, how long will it take for her investment to grow
yarga [219]

Answer:

40

Step-by-step explanation:

so next year her money would be 6% more so:

5000 + (0.6 * 5000) = (1.06) * 5000

So each year she'll have : (1.06)*(last year's money)

So we can say after n years she will have :

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So:

5000((1.06)^n)=50000

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6 0
3 years ago
Joseph built a model of a pyramid where
monitta

Answer:

7

Step-by-step explanation:

\sqrt{49}  = 7

4 0
3 years ago
Please help with at least one question.
Cloud [144]
Okay, first off negative is well negative and since there is no other negatives, -5/7 is least (making it go first). Second, what is smaller 3/5 or 2/9, remember that the bigger the denominator the smaller the piece.

[/] [/] [/] [] [] = 3/5

[/] [/] [] [] [] [] [] [] [] 2/9

At the end it should be -5/7, 2/9 , 3/5. This method can go the same for problems like these...Hope it helps!
7 0
3 years ago
What is 45% of 90 ?
Liula [17]

Answer:

40.5

Step-by-step explanation:

This answer makes sense because we know that 50% of 90 is 45.

Since 45% of 90 is 40.5, we can self-check our answer.

Hope I helped!

~PumpkinSpice1♥

4 0
3 years ago
Read 2 more answers
Problem #1: Mrs. Grape has 90 students. On her last test, 3/10 of these students earned an A. Of those students, 1/9 got a perfe
fredd [130]

Answer:

3 students got a perfect score.

Step-by-step explanation:

Total number of students in Mrs. Grape's class = 90

Number of students who earned an A = 3/10 of 90

= \frac{3}{10}\times 90

= 27 students

Out of 27 students the number of students who got perfect score

= \frac{1}{9}\times 27

= 3 students

3 students got a perfect score.

7 0
3 years ago
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