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On a map, the key states that 1 inch equals 10 miles. If you want to calculate how many miles is equivalent to 7 inches, which proportion would you use?
A.the fraction 10 inch over 1 miles equals the fraction 7 inches over z miles
B. the fraction 1 inch over 10 miles equals the fraction z inches over 7 miles
C. the fraction 1 inch over 10 miles equals the fraction 7 inches over z miles
D. the fraction z inch over 10 miles equals the fraction 7 inches over 1 miles
 one year ago
 one year ago
On a map, the key states that 1 inch equals 10 miles. If you want to calculate how many miles is equivalent to 7 inches, which proportion would you use? A.the fraction 10 inch over 1 miles equals the fraction 7 inches over z miles B. the fraction 1 inch over 10 miles equals the fraction z inches over 7 miles C. the fraction 1 inch over 10 miles equals the fraction 7 inches over z miles D. the fraction z inch over 10 miles equals the fraction 7 inches over 1 miles
 one year ago
 one year ago

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katlin95Best ResponseYou've already chosen the best response.1
dw:1364426784027:dw find the mRF if m angle FNR= 38 degrees
 one year ago

katlin95Best ResponseYou've already chosen the best response.1
A. 284 degrees B. 142 degrees C. 38 degrees D. 76 degrees @jim_thompson5910 can u help with these two?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
Similar example: if 1 inch = 50 miles then 3 inches on a map would mean... 1 inch/50 miles = 3 inches/x miles or just 1/50 = 3/x
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
so you can use that to find the actual distance x that 3 inches represents on a map
 one year ago

katlin95Best ResponseYou've already chosen the best response.1
okay for the first one I got B as my answer and the second question I got C
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
why B for the first one?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
you know the distance on the paper map, it's 7 inches it's not z inches
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
z is the unknown distance in real life from point A to point B that the 7 inches represents on the paper map
 one year ago

katlin95Best ResponseYou've already chosen the best response.1
oh haha I ment A sorry!
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
dw:1364427190413:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
i meant to write z miles, not z inches
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
but hopefully you get the idea
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
the scale is this dw:1364427313903:dw
 one year ago

katlin95Best ResponseYou've already chosen the best response.1
oh first on is C huh?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
put the two side by side to get dw:1364427383477:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
1 inch/10 miles = 7 inches/z miles or just 1/10 = 7/z
 one year ago

katlin95Best ResponseYou've already chosen the best response.1
alright how about second one?
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
we want arc RF, so we need to find central angle FDR
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
to find the central angle, you use the inscribed angle theorem
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
this central angle here dw:1364427601352:dw
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.2
is equal to 2 times any inscribed angle which cuts off the same arc
 one year ago

katlin95Best ResponseYou've already chosen the best response.1
alright so my answer would be D
 one year ago
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