Answer:
The missing x would be 6
Step-by-step explanation:
To find the missing value fo x, use the slope formula and solve for the missing variable.
m(slope) = (y2 - y1)/(x2 - x1)
-3 = (8 - -4)/(2 - x)
-3 = 12/(2 - x)
Now we cross multiply to solve.
12 = -3(2 - x)
12 = -6 + 3x
18 = 3x
6 = x
For 3) 6/10 times 18
6/10 times 18/1 = 108/10= 54/5 or 272.5
Answer:
B
Step-by-step explanation:
Harold has 2.384 kilograms of zinc
To convert grams to kg, multiply the gram value by 0.001 or divide by 1000.
Answer:
2y = 3x + 21
y = 1.5x + 10.5
plug in, in the second equation
- 4x + (1.5x + 10.5) = 23
-4x + 1.5x + 10.5 = 23
-2.5x + 10.5 = 23
-2.5x = 12.5
x = 12.5/-2.5 = -5
y = 1.5 (-5) + 10.5 = 3
x = -5
y = 3
