Let the difference between consecutive terms be D. If the middle term is 30, then the term before it is 30-D, and the term after it is 30+D. So the sum of these three terms would be (30-D) + 30 + (30+D) = 3*30.
Extending this sum to include all 11 terms centered around 30, we see that any addition of D is canceled by a balanced subtraction, leaving you with 11 copies of 30. So the value of the sum is 11*30 = 330.
It’s 35 hope this helps and btw can someone help me what si the summary of chapter 27 book two roads
Answer:
Step-by-step explanation:
Look to the next smallest place value, the digit to the right of the place value you're rounding to
Answer: 32.5g of sugar
Step-by-step explanation:
if 1/2 cup of fruit cocktail is 13g of sugar then half of that, or 1/4 cup is going to be 6.5g of sugar. With that in mind, multiplying our 1/2 by 2 to give us one full cup of fruit cocktail will tell us that there is 26g of sugar in one cup. Adding our 1/4 cup to our whole cup will give us 32.5g of sugar in 1 1/4 cups of fruit cocktail.
Step-by-step explanation:
I think you need to do:
44(7x+12)(7x+12) = 180
so
44(49x²+178x+144) = 180
2156x²+7832x+6336= 180
and you finish and you find x
