Answer:
see below
Step-by-step explanation:
2x ≥ 4
Divide by 2
2x/2 ≥ 4/2
x ≥ 2
-x+7<-6
Subtract 7 from each side
-x+7-7<-6-7
-x < -13
Divide each side by -1, remembering to flip the inequality
x > 13
y>-x+3
This is a line with slope -1 and y intercept 3
This is a dotted line since there is no equals sign and graph above
Answer:
Step-by-step explanation:
Distance = speed × time
A car from Alphaville to Betaville is moving at a speed of sixty-two miles per hour. This means that after two and a half hours, the distance that this car would have covered is
62 × 2.5 = 155 miles
Another car from Betaville to Alphaville is moving at a speed of fifty-seven miles per hour. This means that after two and a half hours, the distance that this car would have covered is
57 × 2.5 = 142.5 miles
A and B represents Alphaville and Betaville as well as the first and second cars. The total distance covered by both cars is
155 + 142.5 = 297.5 miles
The distance between both cars after two and a half hours is
725 - 297.5 = 427.5 miles
well, let's say that the first solution is 7 liters and has "x" percent of acid, how much acid total in it? well, 7x, <u>keeping in mind that "x" is a decimal form</u>.
likewise, the second solution is 3 liters and has 15% acid, so how much acid is there in that one? (15/100) * 3 = 0.45, so