Jane needs to make a total of 40 deliveries this week. So far she has completed 38 of them. What percentage of her total deliveries has Jane completed?

95%

Step-by-step explanation:

Divide how many deliveries Jane has made by the total number of deliveries she has to make this week.

38/40 = 0.95

Then multiply this decimal by 100 to convert it into a percent.

0.95 x 100 = 95%

Jane has completed 95% of her deliveries for the week.

13cm

step-by-step explanation:

(apex)

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