Find #x#? #1. 6/7=x/35, 2. 3/4=x/12, 3. 5/6=x/42, 4. 7/8=x/24, 5. 10/11=x/33#

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Answer 1 · 2018-01-08T06:18:13

See below:

For each of these, we can use cross-multiplication. And so for question 1:

#6/7=x/35#

#7x=210#

#x=30#

We can also, by observation, see the relationship between the denominators and then apply that to the numerators. And so for question 2:

#3/4=x/12#

#3/4(3/3)=x/12#

#9/12=x/12#

#:. x=9#

Question 3

See that #42/6=7=>7xx5=35=> :.x=35#

Question 4

See that #24/8=3=>3xx7=21=> :.x=21#

Question 5

See that #33/11=3=>3xx10=30=> :.x=30#