D1. Because x^3 is what is being focused and it has an implied coefficient of 1
3(x-4)(2x-3)=0
(x-4)(2x-3)=0
x=4
x=3/2
To solve this equation, subtract 2.2 from both sides of the equation.
6.2 - 2.2 = 2.2 - 2.2 + x
4 = x
Flip it around to get:
x = 4
4 is your answer
4 because a year has 365 days. 3 would not be enough because 3x110=330 so the answer is 4 jars of fish food flakes!
Hope it helped
Part a:
x + y = 55
y = x + 25
part b:
jackie runs 15 minutes every day.
part c:
it is not possible for jackie to spend 45 minutes a day dancing, since the time she spends dancing and running is 55 minutes, and we know that it takes 15 minutes to run
step-by-step explanation:
let's call and while jackie is dancing
let's call x while jackie is running
then we know that jackie runs and dances for a total of 55 minutes every day
this means that:
x + y = 55
we also know that jackie dances 25 minutes more than she runs.
this meant that:
y = x + 25
now we substitute the second equation in the first and solve for the variable x
x + x + 25 = 552x = 55-252x = 30x = 15
jackie runs 15 minutes every day.
now we find the value of the variable -y
15 + y = 55y = 55-15y = 40
note that it is not possible for jackie to spend 45 minutes a day dancing, since the time she spends dancing and running is 55 minutes, and we know that it takes 15 minutes to run