Answer:
25.4 students in each class
Step-by-step explanation:
178/7 = 25.4285714286 rounded up to 25.4
Ounces of tuna will go on the x axis and calories on the y axis. This is because the relationship between the number of ounces a person eats and the calories he consumes then is a positive correlation (a line with a positive slope which goes from lower left to upper right) with x being the independent variable. As x increases, y increases. In other words you can ONLY change the amount of calories you consume WHEN you change the amount of ounces you eat. You can't change the number of calories independent of the number of ounces. The independent variable goes along the x axis, cuz the x variable always represents the independent variable.
Answer:
Step-by-step explanation:
First find factors of 81
3 81
3 27
3 9
3 3
1
81 = 3×3×3×3
81 = 3^4
Taking squareroot
∴ -√81 = -√3^4
= -3^2
= -9
Answer:
2.5 times
Step-by-step explanation:
From the diagram attached below;
let's calculate the volume of each bottle;
SO for bottle X;
we have ;
Volume of X = 
Volume of X = 
Volume of Y = 
Volume of Y = 
The ratio of Y to X can help us to determine how many times more lotion is in Bottle Y than in Bottle X; So taking their ratio ; we have:

= 2.5 times
Thus; Bottle Y has 2.5 times more lotion than Bottle X
Answer:
Step-by-step explanation:
Substitute 4x for Y: 4x = -2x -6
Now add 2x to both sides
(due to reciprocal, the opposite of -2x is positive 2x): 4x + 2x = -2x +2x -6
Add common like terms
(4x + 2x = 6x and -2x + 2x cancel out leaving -6 alone): 6x = 6
Now get X alone by dividing the 6 to both sides: 6x/6 = -6/6
Since you're dividing a negative and a positive, the outcome will be a negative so the answer is: X= -6
Hope this helps :)