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makvit [3.9K]
3 years ago
13

I need help i am very confused

Mathematics
1 answer:
sasho [114]3 years ago
5 0

9+12=m or 9+12=21

this is because when we start with m-9=12 we know that m is supposed to be the sum of 9 and 12.

if we check our work we will see this

9+12=21

9+12=21

m-9=12

21-9=12

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Anyone know inverse operations, cause I am confused, I looked online and it said
bija089 [108]

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!

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Hope this helped, I tried to explain it easily.

8 0
3 years ago
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Given f(x), match each expression to its correct value
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Answer:

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Step-by-step explanation:

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Lena [83]

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Step-by-step explanation:

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3 years ago
Which of the statements below is true for the following set of numbers 20,5,50,95,75,60
alina1380 [7]

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they are all multiples of 5

Step-by-step explanation:

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3 0
3 years ago
You go to a restaurant with 3 friends the total bill is 90 you pay 6% tax and add 20% tip what do you pay
pshichka [43]
$90 ×.06=5.40
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Each person pays 38.16
check your work 38.16×3=$114.48

You pay $38.16 for your bill unless your friends stiff you.
3 0
3 years ago
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