Answer:
61
Step-by-step explanation:
aₙ = a₁ + (n - 1)d
aₙ = 4 + (20 - 1)3
aₙ = 4 + (19)3
aₙ = 4 + 57
aₙ = 61
Answer:
x = 1
y = -2
Step-by-step explanation:
x = 19 + 9y
3x- 3y = 9
________
3(19+9y)-3y=9
y=-2
x=19+9(-2)
x=1
(1,-2)
Easy, but somewhat complicated.
Here's how:
50 * 10 = 500
20 * 20 = 200
10 * 30 = 300
Add up the numbers
500+300+200= 1,000
After this I got confused on what to do next, i hope either you can figure it out next or someone finishes explaining.
Sorry for not being able 2 finish D: