Answer:
An arithmetic sequence is a list of numbers with a definite pattern. If you take any number in the sequence then subtract it by the previous one, and the result is always the same or constant then it is an arithmetic sequence.
Leticia made a mistake in her step 2. She did subtraction before multiplication.
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<h3>How to simplify an expression?</h3>
The expression can be simplified as follows;
4.5 ÷ 0.25 + 2.5 - 0.75 × 8
Hence, using Pemdas rule,
4.5 ÷ 0.25 + 2.5 - 0.75 × 8
18 + 2.5 - 0.75 × 8
18 + 2.5 - 6 = 14.5
Therefore, she made mistake in her step 2 because she was suppose to solve the multiplication before subtraction.
learn more on expression here: brainly.com/question/13545210
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Answer:
The total weight would be 5 lbs 12 oz.
Step-by-step explanation:
First, combine the ounces:
13 + 15 = 28 ounces
Next, convert that into pounds and ounces.
28 oz = 1 lb + 12 oz
Finally, add the weight back to the 4 lb.
1 lb + 4 lb + 12 oz = 5 lb + 12 oz
The opposites of 1/3 and -7/12 is -1/3 and 7/12
So 1 and 1/3 times 5/6
first convert 1 1/3 into improper fraction (x/y)
1 1/3=3/3+1/3=4/3
4/3 times 5/6=(4 times 5)/(3 times 6)=20/18=10/9
the answer is 10/9 or 1 and 1/9 or 1 1/9