Question

"Mr. Macho, my great dane, ate 125 hotdogs over a five-day period. Each day he atee seven more hot dogs than on the previous day. How many hot dogs did he eat on the first day?"


I got 55 hot dogs. Is this right??

Answer 1

Nope. How at that rate, he ate the 125 hotdogs in less than three days.

Day 1: 55
Day 2: 55 + 7 = 62

55 + 62 = 112

Answer 2

well I thought tnis was right because the question stated that he ate 7 more than the previous day..
For example day 2 55+7 + 62
Day 3: 62 + 14 = 76 (7 more than day 2)
Day 4: 76 + 21 = 97 (7 more than day 3)
Day 5: 97 + 28 = 125(7more than day 4)

Answer 3

I see what you're thinking, but I believe you're wrong.

<b>Each day he ate seven <u>more</u> hot dogs than on the previous day.</b>

It seems to me the dog ate between 10 and 15 hotdogs the first day.

Answer 4

first day: x hotdogs
second day: x+7
third: x+14
fourth: x+21
fifth : x+28

x + x+7 + x+14 + x+21 + x+28 = 125
5x + 70 = 125
5x = 55
x = 11

so he ate 11, 18, 25, 32, 39
addd them up, it totals 125

Answer 5

Thanks for everybodys help, I understand the math now.

Answer 6

i have th exact same problem!