3[x+3(4x-5)]=15x-24; x+12x-15=5x-8 (divide both sides by 3); 8x=7 (move all the x's to one side), x=7/8
Answer:
Health inspector:7,14,21,28
Fire inspector:12,24,36,48
They will both be there on day 84
Cube has 6 faces/planes :)
Answer:slope = 7/8
Explanation:Slope of the line can be calculated using the following equation:
slope =

The two points given are:
(2,5) representing (x1 , y1)
(-6,-2) representing (x2 , y2)
Substitute with the points in the above equation to get the slope as follows:
slope =

= 7/8
Hope this helps :)
Answer:
x = 1, y = 2
Step-by-step explanation:
7x + 2y = 11 -----Equation 1
Equation 1 × 7:
49x + 14y = 77 -----Equation 2
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4x - 7y = -10 -----Equation 3
Equation 3 × 2:
8x - 14y = -20 -----Equation 4
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Equations 3 + 4:
49x + 14y + 8x - 14y = 77-20
49x + 8x = 77-20
57x = 57
x = 57 ÷ 57
x = 1
Substitute x = 1 into Equation 1.
7x + 2y = 11
7(1) + 2y = 11
7 + 2y = 11
2y = 11-7
2y = 4
y = 4 ÷ 2
y = 2