Answer:
y = 0.2x + 3.4
Step-by-step explanation:
Slope intercept form of line is
y = mx + c
where
m = slope
c is y intercept
given that slope is 0.2 thus, m = 0.2
now equation of line
y = 0.2x + c
now we substitute value of x and y ( (-2, 3) in this equation as given that the given point passes through the line
3 = 0.2*-2 + c
3 = -0.4 + c
c = 3+0.4 = 3.4
put c = 3.4 in equation
y = 0.2x + c
y = 0.2x + 3.4
Thus,
third option , y = 0.2x + 3.4 is the correct answer
Answer:
9/10
Step-by-step explanation:
you find the lowest common denominator in this case is 10
then you take 1/2 and multiply it by 5 both the bottom and top and then you should get 5/10
next you do the same with 2/5 but this time to the get the denominator to 10 you multiply by 2 again multiply both bottom and top and you should get 4/10
now you just add 4/10 and 5/10 together and you get 9/10 or 0.9 as a decimal
To solve a system of equation by elimination, the coefficients of the same variable of both equations must be equal. In this case, let's choose y.
In order to make the coefficient of y of the second equation be equal to 7, we divide it by 2. Resulting to:
2x - 7y = -34
Next, add the two solutions so that the y term is eliminated. The result is:
10x = 5
Then solve for x
x = 1/2
Substitute x to either of the solution to solve for y. The result is:
y = 5
Answer:
first you take 5200 and divided by .3 = 17333.33 which is the total of the equation e minus 10600 so that means you have to take 17333.33 and add 10600 which =27933.33= E
Answer: 21 degrees
Step-by-step explanation:
In the evening, the temperature is 28 degrees and by midnight it has dropped 31 degrees lower, the temperature by midnight will be:
= 28° - 31°
= -3°
Between midnight and 4 am it goes down 6 more degrees. The temperature by 4am will be:
= -3° - 6°
= -9°
Then, by 9 am, the temperature goes up 30 degrees, the temperature at 9 am will then be:
= -9° + 30°
= 21°
