9x+18+3x=1
The second should be:
12x + 18=1, as you cannot combine -3x and 1 to get -2
To continue:
12x = -17
x = -17/12
Amount of time it takes for Roscoe to ride his bike m miles is represented by a function: t(m)=m10.5 . Here m is the number of miles which is traveled by Roscoe.
As given that Roscoe rides his bike at least 10 miles and not more than 30 miles, so the domain will lie in this range which is 10 and 30.
So, correct answer is option C: all real numbers from 10 to 30, inclusive .Real because this domain range will contain fractional units also.
Answer:
A, D, E
Step-by-step explanation:
Just took the test.
Answer:
a
Step-by-step explanation:
because I just think its a
There are three groups of people: 25 years old and younger, between 25 to 50, and 50 years old and older. Their fractions must equal to 1 because these three together form the whole.
1 = 1/3 + 2/7 + x
where x is the fraction for people ages 25 to 50 years old
x = 8/21
So, the actual number of people ages 25 to 50 years old is:
84(8/21) = 32 people
