Answer:
Step-by-step explanation:
4.5x=90
x=20 history
28 chemistry
42 math
They add to 90.
History test=x
Chemistry test=1.4x
Math test=(1.5)(1.4)=2.1x
They add to 90
Answer:
57 and a remainder of 1 or 0.11.
Step-by-step explanation:
514dividedby9=57.1
The equation of the line is 
Explanation:
Given that the line passes through the points (-5,-3)
The slope of the line is 
We need to determine the equation of the line.
<u>Equation of the line:</u>
The equation of the line can be determined using the formula,

Let us substitute the points (-5,-3) and the slope
in the above formula.
Thus, we have;

Simplifying, we get;

Subtracting 3 from both sides of the equation, we get;

Hence, the equation of the line in slope - intercept form is 
Y+4x =7
Or y = -4x + 7
On comparing with point slope form
y = mx+c
We get m = -4 = slope of given line
As the required line is parallel to given line its slope is equal to -4