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3 years ago

Which expression represents 9 less than a number?

Mathematics

2 answers:

blondinia [14]3 years ago

7 0

N-9 because n=number so a number -9=9 less than a number

AlekseyPX3 years ago

6 0

N-9 because your subtracting 9 from n which means you have 9 less than n

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What is the major difference between Fourier Transform and Z-Transform??.

never [62]

<span>The Z transform is related to Laplace transform and is applied to analyze digital circuits. The Fourier transform, on the other hand, is a type z-transform, i.e z-transform which is used in spectrum analysis and calculation of the energy density of the signal. The difference lies on the field of application.</span>

7 0

4 years ago

Joe bought 15 items for $135. If the 15 items consisted of notebooks that cost $4.50 each and calculators that cost $12.00 each,

Luda [366]

n + c = 15

4.5n + 12c = 135

c = 15 - n

12c = 180 - 12n

180 - 12n + 4.5n = 135

-7.5n = - 45

15n = 90

notebook = 6

6 + c = 15

calculator = 9

6 0

2 years ago

Please help me, I need an answer, thanks! :)

polet [3.4K]

Answer:

2t - 5 = -10

Step-by-step explanation:

add 5 to each side which leaves you with

2t=-5

then mulitply 5 and two and get t=10

3 0

4 years ago

Read 2 more answers

Can somebody help me please

Romashka-Z-Leto [24]

Answer:

23) y=3x-7, 3x-y=7

24) y=-6x+9, 6x-y=9

25) y=1/4x+11, x-4y=-44

26) y=-1/2x+4, x+2y=8

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

22. Marlenny travels 42 blocks to school, which is three times as far as Alya does. If Alya moves

Alinara [238K]

How many blocks away from school does she live now is 9 blocks away from school.

First step is to calculate the number of blocks between the house she was living before and the school

Blocks=42 blocks/3

Blocks=14 blocks

Second step is to calculate how many blocks away from school does she live now

Number of blocks=14 blocks- 5 blocks

Number of blocks=9 blocks

Inconclusion How many blocks away from school does she live now is 9 blocks away from school

Learn more here:

brainly.com/question/11747609

5 0

3 years ago