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Fudgin [204]
3 years ago
11

The sum of 9 and twice a number use the variable n to represent the unknown number

Mathematics
2 answers:
jasenka [17]3 years ago
6 0

Answer:

9 + 2n =

Step-by-step explanation:

9 + 2n =

kap26 [50]3 years ago
3 0

Answer:

It would be 9+2n.

Step-by-step explanation:

Sinve you have not given us an equation, twice a number can also be reresented as 2n. Since 9 is the constant, you can say 9+2n.

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ipn [44]

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3 years ago
What is the value of a+ by when a= 7, b= and c= 1/2 ?
Marat540 [252]

Answer:

a = 7

b =?

c = 1/2

a + by = 0

7 + b × 1/2 = 0

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1/2 b = - 7

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b = - 14

a + by

= 7 + - 14 × 1/2

= 7 -14/2

= 7 - 7

= <u>0</u>

Step-by-step explanation:

Id.k if you forgot to write the value of b or not, since the value of b is not given, this will be ur answer.

3 0
3 years ago
-7 \times (7 + 9)−7×(7+9)
prisoha [69]

Answer:

−224

Step-by-step explanation:

−7(7+9)−7(7+9)

=(−7)(16)−7(7+9)

=−112−7(7+9)

=−112−(7)(16)

=−112−112

=−224

8 0
3 years ago
What is 1.625 rounded to the nearest hundredth
charle [14.2K]
B because the 2 is in the hundredths place and then you look behind the 2 which is a 5.

If its five or more you go up and 4 or less you go down, which means that you add one to the 2 which is 3 and you get rid of anything behind the 3 that was the originally.
8 0
3 years ago
Read 2 more answers
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