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%.
Answer:
The reasonable estimate for the solution is (2.29, -4.87)
Step-by-step explanation:
The reasonable estimate for the solution is the point where the two lines intersect each other.
To get the point where they intersect, we will simply equate the system of equations given as shown:

Substitute x = 2.29 into any of the equation
Using the equation y = -3x+2
y = -3(2.29)+2
y = -6.87+2
y =-4.87
This shows that the reasonable estimate for the solution is (2.29, -4.87)
Further explanation on the similar question can be found here brainly.com/question/19713330
Y = (3/2)x-1 tp find m count from one point the units up and to the right till you meet the second point. Y int. is there
8, because you’re doubling the numbers so 3x2=6 and 4x2=8.