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olasank [31]
3 years ago
14

Which expression is equivalent to 81 + 18?

Mathematics
2 answers:
Dima020 [189]3 years ago
3 0

Answer:

  • A. 9(9 + 2)

Step-by-step explanation:

81 + 18 = 99

  • A. 9(9 + 2) = 99, correct
  • B. 9(9 + 9) = 198 ≠ 99
  • C. 9(9 + 3) = 108 ≠ 99
  • D. 3(27 + 18) = 135 ≠ 99
Marat540 [252]3 years ago
3 0

Answer:

9(9+2)

Step-by-step explanation:

81+18=99

Now

\\ \rm\Rrightarrow 9(9+2)

\\ \rm\Rrightarrow 81+18

\\ \rm\Rrightarrow 99

Hence verified.

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A recipe calls for 2 cups of flour to make 24 cookies. What is the constant of proportionality that relates the number of cookie
polet [3.4K]

Answer:

1 cup of flour per 12 cookies

Step-by-step explanation:

2x=24y

divide by 2 on both sides

x=12y

6 0
3 years ago
The following table provides information about the median income in four states in
photoshop1234 [79]

Answer:

$68,213

Step-by-step explanation:

The median is the middle value number.

So you need median for Virginia.

First lets see how index and income are connected.

To do this divide the income by the index to see if you have a constant value you can use.

535.434783 = Arkansas

535.381944 = Alabama

535.58 = Arizona

535.669236 = Alaska

535 is constant in all of these.

Let's multiply the index by 535.

127.2*535 =68212.5

For median income, you need a whole number so lets round up.

68213

So Virginia would have a median income rate of $68,213

If you have anymore questions, don't be afraid to reach out and I hope that helps!

3 0
3 years ago
Need quick answer plz
sukhopar [10]

Answer:

8 is the answer

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Which expression is equivalent?
chubhunter [2.5K]
It'll be 8 |a^3|.

we don't use modulus on 8 cuz it is obviously positive but we do not know about a^6 when rooted it can be +ve or -ve.

6 0
3 years ago
You get $707 a month how much money is that in a year
Crazy boy [7]
707 multiplied by 12 (12 months a year)
It’s 8,484
4 0
3 years ago
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