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Phoenix [80]
2 years ago
13

Evaluate 5(x - 1) - 2 when x = 3

Mathematics
1 answer:
Elan Coil [88]2 years ago
4 0

Answer:

8

Step-by-step explanation:

Given algebraic expression:

5(x - 1) - 2

To:

Evaluate this expression using x = 3

Solution:

  • 5(x - 1) - 2

Evaluate by plugging x = 3 to this expression:

  • 5(3-1)-2

Simplify using PEMDAS.

  • 5(2)-2
  • 10-2
  • 8

<u>We can conclude:</u>

By evaluating x = 3 to the given expression,the answer will be 8.

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B)  Ms.Wright receive $24 as interest at the end of 1 year.

Step-by-step explanation:

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The rate of simple interest  = 3%

The time = 6 months  = (6/12) years   =  0.5 years

\textrm{SIMPLE INTEREST} =  \frac{P \times R \times t}{100} \\\implies SI  = \frac{800 \times 3 \times 0.5}{100}  = 12

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