Question

In a survey of sixth-grade students, 70 students, or 40% of all the students surveyed, said that they liked mustard on hot dogs. How many total students were surveyed?
I just need to know the answer! thanks :)

Answer 1

Answer:

28 people :)

Step-by-step explanation:

step 1: output value is 70

step 2: represent the unknown value with x

step 3: step 1 above, 70 = 100%

step 4: similarly, x = %40

step 5: this results in a pair of simple equations, 70 = 100% ,  x = 40%

step 6: by dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both  equations have the same unit (%); we have  70/x = 100%/40%

step 7: again, the reciprocal of both sides gives  x/70 = 40/70 --> x = 28

hope this helped :)

Answer 2

Answer: 210

Step-by-step explanation: 70+70+70=210 and 40% for 210 students would add up to 120% of all students surveyed. Look if there is 70 students that's been surveyed that is 40% add 40% 3 times(40%+40%+40%)=120% of all students surveyed