Answer:
D
Step-by-step explanation:
3x=y+4
4y=3x-1
Subtract 4 from both sides of the second equation to isolate y:
y=3x-4
Therefore, the correct answer is D. Hope this helps!
Answer:
0.6 %
Step-by-step explanation:
percentage error=(17.9-17.8)/17.8 ×100=1/178×100=100/178=50/89≈0.56≈0.6
There are many strategies that can be used it really depends on what kind of questions you're answering.
Sure 32.144 devided by 9.8
mike charges 100 dollars service charge plus 65 dollars per hour.
amy charges 40 dollars service charge plus 80 dollars per hour.
the cost to repair from mike is 100 + 65 * x.
the cost to repair from amy is 40 + 80 * x.
let x = 3 and you get:
the cost to repair from mike is 100 + 65 * 3 = 295 dollars.
the cost to repaid from amy is 40 + 80 * 3 = 280 dollars.
as long as the time to repair is 3 hours or less, the cost to repair will be cheaper from amy.
