15 write both possible

sam's class is trying to raise money for their class field trip to the local water park. the boys are selling hamburgers and chips for $4 each and the girls are selling hot dogs and chips for $2 each. the boys plan to sell 100 hot dogs. they must raise more than $800.

answer:

the number of hot dogs and hamburgers that were sold is  

78

105.5

step-by-step explanation:

the number of hot dogs and hamburgers that were sold is  

78

, so  

d

+

h

=

78

.

if each hot dog is sold for  

1.25

, then the total revenue from hot dogs is given by  

1.25

d

. in the same way, the total revenue from hamburgers is  

1.50

h

. the total revenue from both hot dogs and hamburgers should be the sum of these, and since we are told the total revenue is  

105.50

, we can say  

1.25

d

+

1.5

h

=

105.5

.

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d

step-by-step explanation:

homozygous. one is homozygous, while two is heterozygous.