Should be option 1. i cant really gv an explanation tho sry :/
$15.00 x 3 = $45.00
You can buy three and have $5.00 left over, or it would just go to sales tax.
The answer would be the bottom left one because 5.15 round to 5 and 42,980 rounds to 40,000 which is equal to 4x10^4 (4 zeros). Then you subtract the exponents and divide the other terms to get 1.25x10^2
Answer:
2.5 gal
Step-by-step explanation:
let be x = galons of solution to be drained and replace with bleach
so, we have to substract to the current solution of bleach 0.04*120, x gallons that have a concentration of 0.04 x
and also, we have to add the same gallons of bleach to the solution, that is x
and have to obtain a final concentration of 0.06*120
we can express the problem with the follow equation:
0.04*120 - 0.04*x + x = 0.06*120
solving the equation for x:
4.8+0.96*x=7.2
0.96*x=7.2-4.8
0.96*x=2.4
x =2.5 gallons
You have put both in slope intercept form;;;;
y=2/3x-17 (already in slope-intercept form)
4x-6y=-6 (standard form)
For this, add 6y to both sides, and add 6 to both sides giving you...
6y=4x-6
Divide by 6 on both sides...
y=2/3x-1
Since both equations have the same slope, the graphs will be parallel.