Yes this is proportional. The constant term is the y is 2 times then the x . Y= x•2
Answer:
d. 5(x + 6) = 47.50
Step-by-step explanation:
First, determine the number of girls; (4 friends + Jacquenline) making a total of 5 girls.
If a ticket costs $6, then the the 5 girls' tickets would cost= 5*6
Also, if a funnel cake costs $x , then 5 girls' cakes would cost= 5* x
Total cost of funnel cake and entry tickets = $47.50
Now make the above three into an equation;
(5*x) + (5*6) = 47.50
5 is the common number on the left side so it becomes;
5( x +6) =47.50
Answer:
(x - 9)(x^2 + 18x + 81).
Step-by-step explanation:
Use the difference of cubes factorization, which claims that a^3 - b^3 = (a - b)(a^2 + ab + b^2)
x^3 - 729 = (x - 9)(x^2 + 18x + 81)
9514 1404 393
Answer:
18 weeks
Step-by-step explanation:
We are given the (time, population) pairs (0, 5) and (7, 47). With these values, we can use the two-point form of the equation of a line to write the equation of the linear model.
p = (p2 -p1)/(t2 -t1)(t -t1) +p1
p = (47 -5)/(7 -0)(t -0) +5
p = 6t +5 . . . . . the linear model matching the given points.
For p = 113, the time (number of weeks) is ...
113 = 6t +5
108 = 6t . . . . . . subtract 5
18 = t . . . . . . . . . divide by 6
After 18 weeks, the beetle population will reach 113.