There was $800 deposited at 9% interest and $400 deposited at 4% interest.
The formula for simple interest is I = prt. Using our information we have:
88 = x(0.09)(1) + (1200-x)(0.04)(1)
88 = 0.09x + 48 - 0.04x
88 = 0.05x + 48
Subtract 48 from both sides:
88 - 48 = 0.05x + 48 - 48
40 = 0.05x
Divide both sides by 0.05:
40/0.05 = 0.05x/0.05
x = 800
1200 - x = 400
Yes that answer is right.
Answer:
Refraction
Step-by-step explanation:
Since the line bends (and this can apply to light too), the line refracts, or changes the angle of direction.
Plug the numbers into the exponential growth formula:
Now work backwards to get the answer:
1)Divide 120150 by 60100 to get 1.998668885
2) Find the 11th root of ANS:
3) Minus 1 from your answer to give 0.064976629
4)Multiply your answer by 100 to give you the rate of x%, which is 6.5 to 1d.p
x=6.5 (1 d.p.)
Btw, this answer also works if you plug it back into the equation
19/12 is the answer I hope you have a good day