A chef know that ground beef used for hamburger is safe to eat once it reaches 160 degrees fahrenheit. for optimized taste and safety, he will not allow a hamburger cooked to a temperature under 160 degrees or over 170 degrees to be served in: 1 to 159 degrees fahrenheit.
hope this help
Answer:
Step-by-step explanation:
i believe this is multiplication so. just multiply 12 3/4 x 2/5. The answer to that would be 12 6/20. Now let's simplify. you can divide this fraction to the fraction 2/2. 12 6/20 divided by 2/2 equals to 12 3/4. I hope this right, and I really hope you get an A on your test.
If it's division than here's the steps. KCFM (keep, change, flip, multiply) keep 12 3/4, change the division symbol to multiplication, and flip the fraction 2/5 to 5/2. last step multiply. 12 15/8. If you can simplify that then simplify it. I don't see anyone to simplify it so your okay.
First we must convert all the values to one mathematical state. We shall convert each to its decimal figure.
a) 0.5 is already a decimal so we leave it alone
b) 1: 5 when simplified makes 1/6 = 0.16
c) 0.35 is already a decimal so we will not touch it.
d) 12/25 = 0.48
e) 4/5 = 0.8
so now we arrange these from the least to greatest:
b, c, a, d, e,
now we equate this with the original values so the answer will be:
1:5, 0.35, 0.5, 12/25, 4/5
I think the answer is 1.06666666667
Okay so this is not too hard once you get the grasp of it. What you want to do is put everything with each other giving you the answer, -3x^2 +42x^2 -147x
