1.1, 1.3, 1.5. Your just adding .2 to the number each time
Y=-2x-5x+12
Add the variables
Y=-7x+12
There^
To round to 3 sign. fig. you have to look at your fourth figure, is it between 0-4? If yes, then it´s should be rounded down. Is it between 5-9? If no, then it´s should be rounded up.
Now, in this case the fourth figure is 4, meaning it should be rounded down..
198 is therefore your answer:D
Have a nice day
Answer: 36.4 miles per gallon!
Step-by-step explanation: To get your answer....divide the y (miles driven) by x (gallons used). Each divided gives you the answer of 36.4 which is the constant of proportionality between the number of miles driven and the number of gallons used.
For example: 691.6 divided by 19= 36.4
1528.8 divided by 42=36.4
1638 divided by 45=36.4
