Question

dale tries to eat at least 5 servings of fruit each day. for the first six days she had 5,6,3,5,4 how many servings of fruit should dale eat on sat to average at least 5 servings per day for the week

Answer 1

it says "for the first six days" but it lists only 5 numbers (5,6,3,5,4)

is this a typo?

Answer 2

yes it should have another 4 listed after the 4

Answer 3

so the full list is

5,6,3,5,4,4

??

Answer 4

yes

Answer 5

let x = amount eaten on saturday

if you average the 7 days, youll get this

A = (5+6+3+5+4+4+x)/7

where A = average amount of servings

Answer 6

you want this average to be 5 or more, so plug in A = 5 to get

5 = (5+6+3+5+4+4+x)/7

now solve for x

Answer 7

4

Answer 8

it's too low

Answer 9

im getting 27 +x/7 though

Answer 10

ok so

5 = (5+6+3+5+4+4+x)/7

5 = (27+x)/7

Answer 11

now multiply both sides by 7

7*5 = 27+x

27+x = 35

x = 35 - 27

x = 8

Answer 12

ohhhhh ok 8!

Answer 13

somehow you cut it in half i think

Answer 14

but yes, x = 8

Answer 15

so she would have to eat more than 8 to get the average

Answer 16

so he'll have to eat at least 8 servings or more to make the avg 5 or more