Answer:
10 rows with 6 passengers per row
Step-by-step explanation:
Let x be the number of rows and y the number of passengers per row.
Then we can interpret the story as the following two equations:
xy=60
(x+2)(y-1)=60
Solving these two equations:
y=60/x
(x+2)(60/x-1)=60 (substitute y)
60 - x + 120/x - 2 = 60 (multiply by -x)
x² + 2x - 120 = 0 (factor)
(x-10)(x+12) = 0
x = 10
y = 60/10 = 6
and indeed 10 * 6 = 60 and also 12 * 5 = 60
Answer:
It’s D, 18 cuts
Step-by-step explanation:
She cut a 6 yard long ribbon into 1/3 yard pieces so you would have to divide to get the answer and the steps to dividing is
Stay the same, change the sign, flip it
so the 6 would stay the same, you would change the division sign to multiplication because division is the opposite of multiplication, and you would flip the 1/3 into 3/1 so
6 x 3/1 would be 18/1 which is just 18
Answer:
Step-by-step explanation:
Answer:
x= 45
y= 60
Step-by-step explanation:
For x:
The angles we have are 45 and 90
180°- 45 - 90 = 45
x= 45
For y:
The angles are 30 and 90
180°- 30 - 90 = 60
y= 60
Answer:
Step-by-step explanation:
Rearranging your quadratic to standard form, you get ...
16t^2 -4t +d = 0
For the quadratic formula, you have ...
a = 16
b = -4
c = d
so the solution is ...
