So, "one third of remaing" is 21, this means that the "remaining" was three times as much: 21*3=63
This 63 is the 30 % of all the people, since they are the remaining of 100-70%.
so: 63=30/100x
we now multiply both sides by 100:
6300=30x
and divide by 30:
210
so all the people at the fair numbered 210!
Rate of change is m in y=mx+b
also, starting value=when x=0
since so many questions I will not show work
1. A positive
2.B negatvie
3.B negative
4.B negative
2. B y=5x+4
3. B y=7x-8
4. C 12x+6y=30
5. plumber=140
electrition=115
per our means how much does he charge for 1 hour so subsitute 1 for x or find where 1 is
9/10 = 0.9
3/5 = 0.6
Hope this helps.
Answer:
Step-by-step explanation:
If you want to find the product it would be 6x^2-7xy^2+y^4
