67% of 1280 is 857.6 substrack it and it's = 422.4
Answer:
I think its 20x - 2 because when u are given KJ or KL we need the measurement of x
<u>IF YOU NEED SLOPE-INTERCEPT FORM</u>
2x + 3y - 7 = 0
3y = -2x + 7
y = -
+ 
<u>IF IT IS KIND OF HOW YOU WROTE IT:</u>
If it is 2x+3y-7=2x+3y-7 then the solution is 1
IF THIS IS NOT WHAT YOU NEED, <em>PLEASE </em>COMMENT WITH MORE CONTEXT! :D
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
