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3 years ago

Find 3 consecutive numbers that equal 45

Mathematics

2 answers:

tatyana61 [14]3 years ago

7 0

Answer:

14,15,16

Step-by-step explanation:

Let x be the first number

Consecutive means in a row

x+1 is the second number

x+2 is the third number

x+ x+1 + x+2 = 45

Combine like terms

3x+3 = 45

Subtract 3 from each side

3x+3-3=45-3

3x = 42

Divide each side by 3

3x/3 = 42/3

x =14

The first number is 14

The second number is 14+1 = 15

The third number is 14+2 =16

nekit [7.7K]3 years ago

7 0

Answer:

14, 15, 16

Step-by-step explanation:

Let n, n+1, n+2 be the consecutive numbers

n + n+1 + n+2 = 45

3n + 3 = 45

3n = 42

n = 14

14, 14+1, 14+2

14, 15, 16

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3 years ago

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timurjin [86]

4. You remove the brackets

Remember:
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a) 5(2x+3y) -4(3x-5y)
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7 0

4 years ago

What is the solution of the following system? Use the substitution method.

Tatiana [17]

Answer:

y-2x=8 (label equation 1)

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divide equation 2 by 2 to find y

y=2x+8

sub this in equation 1

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2x+8-2x=8

8=8

once you get to this point because 8=8 there are an infinite number of solutions because you can't divide by 0. So the answer is B

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3 years ago

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Reptile [31]

Answer:

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Step-by-step explanation:

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More about the standard error for the distribution link is given below.

brainly.com/question/14524236

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2 years ago