Angles on a straight line add to 180°, so:
4x + 90 + 2x + 72 = 180
6x + 162 = 180
6x = 18
x = 3
I hope this helps!
Answer:
300=10x+20y
Step-by-step explanation:
You are trying to get the sales to equal 300 so the 10x and 20y added together will get you 300
9514 1404 393
Answer:
Step-by-step explanation:
It looks like your interactive graphing tool needs you to plot some points on each of the lines. For these lines, it is convenient to use the x- and y-intercepts. Each intercept can be found by dividing the constant by the coefficient of the variable.
<u>-7x -2y = 14</u>
The x-intercept is 14/-7 = -2. Plot (-2, 0) on the x-axis.
The y-intercept is 14/-2 = -7. Plot (0, -7) on the y-axis.
<u>6x +6y = 18</u>
The x-intercept is 18/6 = 3. Plot (3, 0) on the x-axis.
The y-intercept is 18/6 = 3. Plot (0, 3) on the y-axis.
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The point of intersection of the two lines is the solution: (x, y) = (-4, 7).
Answer:
blue question mark = –
Step-by-step explanation:
6(2x -1) uses the distributive property, which means that both 2x and -1 are multiplied by 6 when expanding the brackets.
6(2x - 1)
= (6 x 2x) + (6 x -1)
= 12x - 6
Answer:
n = - m or n = -0.5 - 1.5m
Step-by-step explanation:
21m + 14n = -7 (subtract 21m from each side)
14n = -7 - 21m (divide everything by 14)
n = - m
n = - m or n = -0.5 - 1.5m