Answer:
210 + 210 = b + t = 420
Step-by-step explanation:
distribute: -12 + 10k + 7k
combine like terms: -12 + 17k
-12 + 17k
Answer:
The linear equation that represent this situation is
(3,000+x)0.055=3,000(0.04)+x(0.07)
The value of x is $3,000
Step-by-step explanation:
Let
x -----> the amount invested in an account that earns 7%
we have that
4%=4/100=0.04
7%=7/100=0.07
The linear equation that represent this situation is
(3,000+x)0.055=3,000(0.04)+x(0.07)
Solve for x
165+0.055x=120+0.07x
0.07x-0.055x=165-120
0.015x=45
x=3,000
-4x is the slope and -12 is the y-intercept