First you find the price after tax. You multiply 40 times .085 add that answer (3.4) and get 43.4. After that you get the tip. You multiply 43.4 times .18 and add that answer ( 7.8) and get 51.21.
Answer:
i need brainliest
249u = 66 or 249 X u = 66
Step-by-step explanation:
when u is multiplied by 249 you get 66
The nearest meter would be the nearest whole number. When you look to the right of the decimal, you see that the next number is 2. When the next number is 4 or less, you round down. That's why this number is rounded down to 4
Let's check the answer
Start with equation (1). Plug in (x,y) = (-10,-1)
x + 5y = -15
-10 + 5y = -15 ... replace x with -10
-10 + 5(-1) = -15 ... replace y with -1
-10 - 5 = -15
-15 = -15 ... true equation
So we've confirmed one equation so far. Let's check the other equation
--------------------
Start with equation (2). Plug in (x,y) = (-10,-1)
y = (1/5)*x + 1
y = (1/5)*(-10) + 1 ... replace x with -10
-1 = (1/5)*(-10) + 1 ... replace y with -1
-1 = -2 + 1
-1 = -1
Since both equations are true when (x,y) = (-10,-1), this confirms the answer. Nice work on getting the correct answer.
Visually we can see the two lines crossing at (-10,-1). See the attached image. Note: 1/5 = 0.2 so the second equation can be written as y = 0.2x+1
Try watching this video https://www.youtube.com/watch?v=epZS4ZYbxFU