Answer:
y=1, x=2
Step-by-step explanation:
x+y=3
x-y=1
Using elimination method
x-x+y--y=3-1
2y= 2
y=1
Substitute y=1 into equation 2
x-1=1
x=1+1
x=2
The number of ways that Grant can arrange 3 of the 10 plants is<u> 120 ways</u> and the number of ways that 4 floats out of 8 can be arranged is 70 ways.
<h3 /><h3>How can these combination problems be solved?</h3>
Grant can arrange 3 out of 10 plants in the following number of ways:
= 10!/ ((10! - 3!)3!)
= ( 10 x 9 x 8) / (3 x 2)
= 120 ways
The parade organizer can arrange 4 floats out of 8 as:
= 8!/((8! - 4!)4!)
= (8 x 7 x 6 x 5) / (4 x 3 x 2)
= 70 ways
When 4! is written in expanded form, it comes out as:
= (4 x 3 x 2)
Find out more on combinations at brainly.com/question/4658834.
#SPJ1
T1 = 3
t2 = 2*t1 = 6
t3 = 2*t2 = 12
t4 = 24
t5 = 48
Answer:
B
Step-by-step explanation:
2 negatives make a positive it give positive 7.8 added to positive 5.6