0.00006 = 6 x 10-5
0.0002 = 5 x 10-4
sub in each of the possible answers to find which ones make the equation true....
5(-2x+(-9))
= -10x-45
2(3x+8y)
= 6x+16y
150 + 20x = 35x solve for 'x' the number of lessons to make things =
VERY similar question...you should be able to apply to this question....
https://web2.0calc.com/questions/plz-help-asap-ty#r1
Here are some trig identities to get you started:
5x + 4y = 24
y = -5/4 x + 6 slope , m = -5/4
Parallel slope = - 5/4
In POINT-SLOPE form through point 8, -5
(y- -5) = -5/4 (x-8) re-arrange into y = mx + b form for your final answer
save is 9 out of (9+8) = 9/17 of total
spend is 8 out of (9+8) = 8/17
Save = 9/17 x 680 = £ ........
Spend = ..........
n = # nickels
d = dimes = 2n-1
5 n + 10 (2n-1) = 90
25n -10 = 90
25n = 100
n = 4 d = 2n-1 = 7
30*30*15 = 13500 Just using the Web2.0 calculator.....
