Answer:
94.4$
Step-by-step explanation:
3x6%= 18%
using cross multiplication you can find 18% of 80
18/100=x/80 =14.4$
then you add the 18% of 14.4$ to the original 80$ which comes out to 94.4$
Hope this helped you out a little!
Answer:
The possible pairs of arrangement of cookies are (12,07) (14,06) (21,04) and (42,2).
Step-by-step explanation:
Given:
Daniel makes 84 cookies and we have to find how many cookies are there in each row and how many rows are there.
Basically we have to find the possible factors of 84.
⇒ Factors:
⇒ 
The possible pairs are.
⇒ 
or 
⇒ 
or 
⇒ 
or 
⇒ 
or 
So,
there can be 12 cookies in 07 rows or 07 cookies in 12 rows.
there can be 14 cookies in 06 rows or 06 cookies in 14 rows.
there can be 21 cookies in 04 rows or 04 cookies in 21 rows.
there can be 42 cookies in 02 rows or 02 cookies in 42 rows.
The possible pairs are (12,07) (14,06) (21,04) and (42,2) in which Daniel can arrange the cookies.
So the question sets the problem with a bunch of different values given but it goes ahead does the work of putting them into an equation, since this equation they made gives us the position, when it is equal to zero the object has impacted the ground. Setting it to zero allows us to solve for t, the time at which it strikes the ground.
0 = -4.9t^2 + 19.6t + 58.8, because this is a quadratic, and a complicated one at that, we will use either a calculator, or the quadratic formula to solve for t.
No matter what way you solve it you will get two values, only the positive value applies because a negative value for time is illogical.
The answer is at t = 6 seconds
Any y = ? equation is a horizontal line that passes through the number given.
y = 7 would be a line passing through 7 on the y - axis and staying flat and never rising.
Hope this helps! ;)
