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Mathematics 8 Online
OpenStudy (anonymous):

Milan is building a sailboat. the model is built with a scale of 5 cm =4 ft. If Milan is intrested in finding the height of the actual sail on a full boat like his model and the models sail is 22 cm high ,what is the height of the actual sail ? a.88ft b.110 ft c.27.5 ft d.17.6 ft ? Im thinking B ?

OpenStudy (anonymous):

22*3

OpenStudy (anonymous):

why you multiply by 3?

OpenStudy (anonymous):

dont kno help me

OpenStudy (anonymous):

what do ut hink

OpenStudy (anonymous):

5 cm is 4 ft how many ft is 1 cm?

OpenStudy (anonymous):

You don't need to know that.

OpenStudy (anonymous):

a.

OpenStudy (anonymous):

yes you need to know you always get answer by performing this step but you may ignore it if you are good

OpenStudy (anonymous):

???

OpenStudy (anonymous):

You take the ratio of the sail height on the model to the scale of 5 cm. Then you multiply this value times the scale value of 4ft

OpenStudy (anonymous):

which gives you 88 right ?

OpenStudy (anonymous):

22/5=x/4

OpenStudy (anonymous):

rickjbr that's what i asked for at the beginning, it's called ratio

OpenStudy (anonymous):

Ah I see what you were talking about. I thought you were asking to do a metric conversion.

OpenStudy (anonymous):

Sorry about that

OpenStudy (anonymous):

which one is my answer

OpenStudy (anonymous):

solve for x

OpenStudy (anonymous):

d .17.6

OpenStudy (anonymous):

d

OpenStudy (mertsj):

every 5centimeter of his model stands for 4 feet so write a proportion 5cm/4 ft = 22cm/x ft

OpenStudy (mertsj):

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