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<em>AD</em><em>|</em><em>|</em><em> </em><em>CB</em><em>,</em><em> </em><em>AB</em><em> </em><em>|</em><em>|</em><em>EF</em>
Hope this helped you- have a good day bro cya)
4/9 ÷ x = 12
u always do the opposite, in an equation/inequality.
multiply 4/9 on both sides.
4/9 * 12/1 = 48/9
so it's 48/9
Both distances 3966 and 4746 were done in 6 hours, so the speeds are:
speed against wind = 3966/6=661 km/h (difference of airplane and wind)
speed with wind = 4746/6=791 km/h (sum of airplane and wind)
The speed of airplane is greater than that of the wind, so this is a sum and difference problem.
Greater speed (plane) = (sum+difference)/2=(791+661)/2=726 km/h
Lesser speed (wind) = (sum-difference)/2 = (791-661)/2 = 65 km/h
Answer:
Step-by-step explanation:
Since you have an expression for y, it is convenient to use it.
-2x + 8(3x) = -22 . . . . . substitute 3x for y in the second equation
22x = -22 . . . . . simplify
x = -1 . . . . . . . . . .divide by 22
Substituting this value into the expression for y:
y = 3(-1) = -3
The solution is (x, y) = (-1, -3).
Answer:
7x - y = 5
Step-by-step explanation:
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
Obtain the equation in point- slope form and rearrange into standard form.
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = 7 and (a, b) = (1, 2)
y - 2 = 7(x - 1) ← in point- slope form
y - 2 = 7x - 7 ( subtract y from both sides )
- 2 = 7x - y - 7 ( add 7 to both sides )
5 = 7x - y , that is
7x - y = 5 ← in standard form
