X=6.75
3+x=5x-24 Add 24 on both sides
27+x=5x Subtract 1x on both sides
27=4x Divide 4 on both sides
6.75=x You Can double check by plugging in x
It can go 630 miles because 4 needs to be multiplied by 3 to get 12 and so 210 needs to be multiplied by 3 to get the answer of how far on 12 gallons.
12A+8W > 343 represents the number of minutes the robot filters air A and water W to filter more than 343 liters of air and water.
If the robot filters air for 20 minutes and water for 15 minutes, plugging A as 20 and W as 15, let us check if the equation is true or not.
Checking left side:
12A + 8W = 12(20) +8(15)
240+ 120 = 360
Checking right side: 343
12A+8W > 343
360>343
True.
So the robot meets the first expectation.
Let us check for second equation:
3A+4W < 49
Left side : 3A +4W = 3(20) +4(15) = 60 +60 =120
Right side is 49
comparing left and right side:
3A+4W < 49
120<49
False.
So the robot does not meet the second expectation.
Answer:
The first option
Step-by-step explanation:
2a) $6 off ... you multiply 0.20 by 30, and get 6
2b) $24 ... since discount is $6 off, you subtract $6 from the original price, $30, and get $24
