What is the best estimate for the sum of 225.45 + 90.32? round each number to the nearest whole number. a 315 b 320 c 310 d 316 note: give me the wrong answer and the right one to

Once we add 225.45+90.32 we get 315.77, when we round this to the nearest whole number we get 316

-Steel jelly

225.45+90.32=315.77

=316.00

If 77 is higher than 40, it would round up to 316.00. If that helps you.

Step-by-step explanation:

Ask your teacher if she wants you to round up from the ones, tens, or, hundreds. Then I'll help you. :)

b. 2 and 4

step-by-step explanation:

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt