I think the answer is 300+20+8
and 400+7 :)
Answer:
Step-by-step explanation:
10x + 12y is the correct answer
The manager’s likely error was forgetting to add the $2 back to the $18. Because $2 is roughly 11% of $18 for a markup you need to add the $2 back into the $18 for a total of $20.
Answer:
Terrell drove 200 miles one way
Step-by-step explanation:
Since his trip concluded at 9 hours, let's say that x = time traveled at 40 mph
and 9 - x = time traveled at 50 mph
D = (rate) x (time)
<em>40x = 50(9 - x)</em> -----Use Distributive property on the right side of the equation
<em>40x = 450 - 50x</em><em> </em>-----Add 50x on both sides
<em>90x = 450</em> ------Divide by 90 on both sides
We end up with<em> x = 5 </em>which is the value we need to determine the distance of our first trip, calculated by
<em>D = 40x</em>, or <em>40(5) = 200 mi</em>
Answer:
x = 3/4 or 0.75
Step-by-step explanation:
Break the bracket out and you will get:
3(5x – 4) – 2 = 10 – 3x
= 3*5x - 3*4 - 2 = 10 - 3x
= 15x - 12 -2 = 10 -3x
Add 3x into both sides and subtract 12 and subtract 2 in both sides, we get:
15x + 3x - 12 - 2 + 12 - 2 = 10 - 3x + 3x + 12 + 2
18x = 24
Divide both side by 18, we get:
18x/18 = 24/18
x = 24/18 = 3/4 or 0.75
Hope this helped :3
