Question

Medal
A scalpel blade is to be 3/8 in long. How many blades can be cut from a piece of stainless steel that is 3 1/2 ft long?
? blades

Answer 1

3/8 inches = 0.375 inches

3 ft + 1/2 ft = 3 ft + 0.5 ft = 3.5 ft

3.5 ft = (3.5 ft)*(12 inches/1 ft) = 42 inches

Answer 2

so the question is asking

"A scalpel blade is to be 0.375 in long. How many blades can be cut from a piece of stainless steel that is 42 inches long? "

Answer 3

15.75

Answer 4

i think you are right

Answer 5

it asks "How many blades", so it's assumed that you have a whole number of blades

Answer 6

so 16

Answer 7

x = # of blades

(# of blades)*(length of each blade) = total length of steel

x*0.375 = 42

0.375x = 42

solve for x

Answer 8

42

Answer 9

am i right?

Answer 10

42-0.375 = 41.625

Answer 11

you don't subtract

Answer 12

0.375x means 0.375 times x

you need to undo that multiplication to isolate x

Answer 13

0.140

Answer 14

idk how you got that

Answer 15

0.375*0.375

Answer 16

I see. That is incorrect.

Answer 17

so what do i need to mulitply