A= 10
subtract 4 from both sides to get “a” by itself.
Answer:
x = -1/2
Step-by-step explanation:
2x + 4y = 13
3x + y = 2 (you can multiply this equation by -4 in order to eliminate the y-term)
-4(3x + y = 2) = -12x - 4y = -8
+ <u>2x + 4y = 13</u>
-10x = 5
x = -5/10 or -1/2
x(-1/2) + 4y = 13
-1 + 4y = 13
4y = 14
y = 14/4 or 7/2 or 3 1/2
Answer:
b
Step-by-step explanation:
using the law of logarithms
• log
= nlogx
given
= 29 ( take log of both sides, that is base 10 )
log
= log 29, hence
tlog 3 = log29 (divide both sides by log 3 )
t =
≈ 3.0650 → b
p(1+r/n)^(r times n)
P is your start amount
R is rate as a decimal 5% would be 0.05
t is time (years)
n is the number of time compounded , weekly would be 52 times a year.
2300(1 + (0.0212/52))^(52 times 7)
2300(1.0004076)^(364)