To simplify the expression 5(0.5k-1) + 2(0.4-k), we observe that first we multiply the terms inside each set of parentheses by their respective coefficients. This gives us:
5(0.5k) - 5(1) + 2(0.4) - 2(k)
Next, we apply the distributive property and perform the multiplications:
2.5k - 5 + 0.8 - 2k
Now, we combine like terms:
(2.5k - 2k) + (-5 + 0.8)
0.5k - 4.2
Therefore, 5(0.5k-1) + 2(0.4-k) simplifies to 0.5k - 4.2.
Add 5(0.5k-1) + 2(0.4-k)
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