Answer:
third answer
Step-by-step explanation:
-9x < 63
divide by nine
-x< 7
multiply by -1
x > -7
8 and 28 is 4 i think i’m not 1000% sure i tried
Answer:
0.75 in decimal form or 3/4 in fraction form.
: )
Answer:
A. (3,-4)
Step-by-step explanation:
if we reflect on the x axis, the y changes
if we reflect on the y axis, the x changes
Given:
Total amount invested = $9,000
interest rates = 4% and 6%
Let x be the part of 9,000.
Note that annual return on each investment is the same.
0.04x = 0.06(9,000 - x)
0.04x = 540 - 0.06x
0.04x + 0.06x = 540
0.10x = 540
x = 540/0.10
x = 5,400
0.04x = 0.06(9,000 - x)
0.04(5,400) = 0.06(9,000 - 5,400)
216 = 0.06(3,600)
216 = 216
total interest for the year : 216 + 216 = 432
Interest = pricipal * interest rate * term
432 = 9,000 * interest rate * 1 yr
432/9,000 = interest rate
0.048 = interest rate
Interest rate would be 4.8% to get the same interest from the whole 9,000.