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Rewrite in simplest terms: 
0.4(3k+4k+9)-0.3 k
Answer:

Rewrite in simplest terms: 0.4(3k+4k+9)0.3k 0.4(3 k+4 k+9)-0.3 k \newlineAnswer:

Full solution

Q. Rewrite in simplest terms: 0.4(3k+4k+9)0.3k 0.4(3 k+4 k+9)-0.3 k \newlineAnswer:
  1. Distribute and Multiply: First, distribute 0.40.4 to each term inside the parentheses.\newline0.4×3k+0.4×4k+0.4×90.4 \times 3k + 0.4 \times 4k + 0.4 \times 9
  2. Perform Multiplication: Now, perform the multiplication for each term.\newline1.2k+1.6k+3.61.2k + 1.6k + 3.6
  3. Combine Like Terms: Combine like terms 1.2k1.2k and 1.6k1.6k.1.2k+1.6k=2.8k1.2k + 1.6k = 2.8k
  4. Rewrite Expression: Now, rewrite the expression with the combined like terms. 2.8k+3.60.3k2.8k + 3.6 - 0.3k
  5. Subtract and Combine: Subtract 0.3k0.3k from 2.8k2.8k to combine the kk terms.\newline2.8k0.3k=2.5k2.8k - 0.3k = 2.5k
  6. Write Simplified Expression: Finally, write down the simplified expression. 2.5k+3.62.5k + 3.6

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