Answer: - 48 (edit: omg i didnt see the minus)
Step-by-step explanation: i mean, only z multiply x
z = 12
x = 4
zx
= z multiply x
= 12 x - 4
= - 48
^_____^
Half of its original value=
Years for the television set to be worth half of its original value=
≈ 4.1
Answer:
K = -2
Step-by-step explanation:
K represents the y-intercept, which is where the line crosses the y axis. We can see from the y = -4x -2, that -2 is the y-intercept, because in y = mx + b, b is the y -intercept.
~theLocoCoco
Answer:
140 students are probably 10th graders
Step-by-step explanation:
This survey is supposed to represent the whole of the group, and so it is reasonable to assume that the ratios and percentages of people in each grade would be equal in the same as it is in the whole. For this sample, we have a total of 30 people surveyed (14+8+5+3), and 14 of them are 10th graders. Then, you would set up a proportion to find the number of 10th graders in 300. The equation would be 14/30=x/300. This isnt very hard to figure out because you just cross multiply to get 30x=4200, and you then divide each side by 30 to isolate x, which leaves you with x=140. This leaves you with the answer that 140 students are 10th graders.
The correct answer is: x < 1.25
To solve this, we following the same steps as when solving inequalities. We just have to remember to reverse the sign if we multiply or divide by a negative number.
-1.2x - 8.2 > -9.7
-1.2x > -1.5
x < 1.25