Answer:
y=7 and x=-8
Step-by-step explanation:
Isolate x in the first equation:
10x=-17-9y
x=(-17-9y)/10
Substitute into the second equation:
7*((-17-9y)/`10)+10y=14
-119/10+37y/10=14
-119+37y=140
37y=259
y=7
Putting this into the first equation, we get that x=-8
Answer:
y = (1/3)x - 4
Step-by-step explanation:
Notice that the graph crosses the y-axis at (0, -4). The y-intercept is thus 4, which we often call "b."
If we start at (0, -4) and move to the right along the graph, we see that the first point at which both the change in x and the change in y are integers is (3, -3).
As we go from (0, -4) to (3, -3), x increases by 3 and y increases by 1.
We can then conclude that the slope, m, of this line is
m = rise / run = 1 / 3.
Substituting b = -4 and m = 1/3 into the slope-intercept form of the equation of a straight line, we get:
y = (1/3)x - 4
The ship will travel 100 miles I hope that answered your question :)
Answer:
x = 70
Step-by-step explanation:
Since the two sides are congruent, then the base angles are congruent.
2x + 40 = 180
subtract 40 from both sides
2x = 140
divide by 2 on both sides
x = 70