Answer:
-4y=40
y=-10
x-3(-10)=17
x-30=17
x=17+30
x=47
Step-by-step explanation:
60 min = 1 hour
1st we need to know how many times 20 goes in 60 so we will divide.
60 ÷ 20 = 3
Now we will multiply to find the trains speed in miles per hour.
3 × 25 = 75
SO, the train travels 75 miles per hour.
Hope I helped ya!!
Answer:
y=-2x-4
Step-by-step explanation:
1) In this equation, -4 is the y-intercept (which is the point in the graph when x is 0 and y is something.)
2) Then, you have to check if the graph also has a y-intercept of -4 (it does)
3) Find out what the slope of the graph is. In this case, it is -2
4) If the equation also has a slope of -2 and y-intercept of -4, then it represents the graph.
Hope this helps :)
Remark
The general equation for the point slope form is
(y - h) = slope(x - k)
<em><u>Givens</u></em>
given point = (5,7) from which
h = 7
k = 5
slope = m = - 13
Equation
(y - 7) = -13(x - 5) Usually the equation is left like this.
