1 1/3 hours. 3/4 plus 7/12 equals 1 1/3. Hope this helps
Answer:
Step-by-step explanation:
The appropriate expression to identify the amount of formalin is: x = 3200 ÷ 100 × 44%
<h3>How to identify the amount of formalin?</h3>
To calculate the amount of formalin in this substance we must perform the following mathematical operation:
- 3200 ÷ 100 = 32
- 32 × 44% = 1,408
According to the above, the mathematical expression would be:
Learn more about mathematical expression in: brainly.com/question/14462529
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Answer:
23 + 16 = 39
39 - 16 = 23
the student did not reverse the sum correctly
78.5/100 as a decimal is just 0.78.5 and as a percent it is 78.5 %
