dokithefursona
14.11.2019 •
Mathematics
You are selling concessions at a local swim meet. hot dogs are being sold for $1.00 and soda is being sold for $0.50. at the end of the day you made $150. let x represent the number of hotdogs sold and y represent the number of sodas sold. write an equation that can be used to find the number of hotdogs and sodas sold at the swim team.
a) standard form:
b) slope-intercept form:
c) if you sold 40 hot dogs how many sodas did you sell?
d) using the standard form, identify the x-intercept of the graph and explain how the x-intercept relates to the number of hot dogs and sodas sold.
e) using standard form, identify the y-intercept of the graph and explain how the y-intercept relates to the number of hot dogs and sodas sold.
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Ответ:
use this equation: 150=1x+0.5y
Step-by-step explanation:
a) standard form equation above
b) 150=1x+0.5y
subtract 1x from both sides
then divide all by 0.5 to get slope intercept form
c) plug it in: 150=1(40)+0.5y and solve to get 220
d) take the y intercept from answer b. and the y intercept shows how many you have to sell of each to reach you $150(I think, this part might be wrong...idk)
Ответ:
y = 20/x