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1 vote
Simplify.

0.55−(0.9−0.8)⋅4

User Yazaki
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2 Answers

3 votes
-3.55 is the answer to ur question
User Tato
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7.4k points
1 vote
By PEMDAS, you should first subtract 0.8 from 0.9, because parenthesis should be solved first. This gives you 0.1, but we have to change the 0.1 to -0.1, because of the negative sign before it. Next, multiply -0.1 times four. This gives you -0.4, because opposite signs make a negative when you are multiplying (Or dividing, but that isn't relevant to this problem.) Finally, subtract -0.4 from -.55. (Don't forget to change the signs!) This gives you -0.15, your final answer.
User Yuri
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7.8k points