Manuel bought 6 postcards during 3 days of vacation. how many days will manuel have to spend on vacation before he will have bought a total of 20 postcards?

  10 days

Step-by-step explanation:

The problem seems to assume that Manuel will continue to buy postcards at exactly the rate of 2 per day during his whole vacation. 2×10 = 20, so it will take 10 days to accumulate 20 postcards.

If you like proportions, you could write one:

  days/postcards = 3/6 = ??/20

Multiplying by 20 gives ...

  20(3/6) = ?? = 10 . . . . . 10 days on vacation will result in 20 postcards

answer: i believe c. is the answer sorry if i am wrong

step-by-step explanation:

y-y1=4(x-x1)

step-by-step explanation:

this is point-slope form since you only have 4 as the slope it goes in place of m

hope this : )