9514 1404 393
Answer:
Step-by-step explanation:
Let x represent the amount invested at 9%. Then 7000-x was invested at 4% and the interest earned was ...
9%·x +4%(7000-x) = 430
5%·x +280 = 430 . . . . . . . . . simplify
0.05x = 150 . . . . . . . . . . . subtract 280
x = 3000 . . . . . . . . . . divide by 0.05
$3000 was invested at 9%; $4000 was invested at 4%.
Slope = 3/4
y intercept = 2
equation : y= 3/4x+2
Answer:
The correct answer is C.
Step-by-step explanation:
I took the test
Does this help? If it doesn't i can try to explain more if you want.
