Allen's work is not written properly so I have rearranged it as shown below:
Original problem) –8.3 + 9.2 – 4.4 + 3.7.
Step 1) −8.3 + 9.2 + 4.4 + 3.7 Additive inverse
Step 2) −8.3 + 4.4 + 9.2 + 3.7 Commutative property
Step 3) −8.3 + (4.4 + 9.2 + 3.7) Associative property
Step 4) −8.3 + 17.3
We can see that in step 1), Allen changed -4.4 into +4.4 using additive inverse. Notice that we are simplifying not eliminating -4.4 as we do in solving some equation. Hence using additive inverse is the wrong step.
Alen should have collect negative numbers together and positive numbers together.
Add the respective numbers then proceed to get the answer.
–8.3 + 9.2 – 4.4 + 3.7
= –8.3 – 4.4 + 9.2 + 3.7
= -12.7 + 12.9
= 0.2
<em>Answer</em>
the <u>triangle on the bottom left</u> has the greatest area
<em>Step-by-step explanation</em>
first one has an area of 24.5
second one has an area of 19.6
the third one has an area of 27.6 (greatest area)
19.6>24.5>27.6
<em>hope this helped!</em>
<em>have an awesome day :D</em>
26 plus 27 is 53
hope I helped
Answer:
21
Step-by-step explanation:
7+7+7=21
