I would take 84 times 3 for the three tests which gives you 252. I would then subtract the two test they took which is the 90 and 82 for a total of 172. 252-172 =80. The lowest score would be an 80
Answer:
540
Step-by-step explanation:
This is a linear equation y=18x. I got this equation by dividing all of the y values by the x value and finding that 18 was the common answer. Then I plugged in 30 for x and solve for y.
Answer:
24.1 units
Step-by-step explanation:
1. True: the absolute value works exactly in this way: it turns negative numbers into their positive counterpart (e.g.: |-3|=3), and it does nothing on positive numbers (e.g.: |10|=10). So, the absolute value of a negative number will always be a positive number.
2. True (see above)
3. False: for example, you can pick -100 and 30. Their absolute value is 100 and 30, and 100>30. So, the absolute value of a negative number is greater the absolute value of a positive number.
Xy = 72
x - y = 1
x = 1 + y
(1+y)y = 72
y + y^2 = 72
y^2 + y - 72 = 0
(y-8)(y+9) = 0
y = 8 , y = - 9
x = 1 + 8
x = 9
y = 8
i am a mathematics teacher. if anything to ask please pm me
