Answer:
a(n) = 20*2.5^(n - 1)
Step-by-step explanation:
Note that 50 is 2.5 times 20, and that 125 is 2.5 times 50. Thus the common factor is 2.5. The formula for the nth term is
a(n) = a(1)*r^(n - 1) => a(n) = 20*2.5^(n - 1)
Answer:
Step-by-step explanation:
10x+4y=18
- X+4y=15
9x=3
X=1/3
Answer:
Ur answer is in the screenshot :)
Step-by-step explanation:
1. Subtract 2x2x from both sides. 3y=5x-y-2x
3y=5x−y−2x
2. Simplify 5x-y-2x5x−y−2x to 3x-y3x−y.
3y=3x-y
3. Add yy to both sides.3y+y=3x
3y+y=3x
4. Simplify 3y+y3y+y to 4y4y. 4y=3x
4y=3x
5. Divide both sides by 33.\frac{4y}{3}=x34y=x
6. Switch sides.x=\frac{4y}{3}
x= 34y! Hope this helped!! :))
I think it’s 32
Hope that helped XD