Answer:
2x + 8
Step-by-step explanation:
solve by using the distributive property
2(x + 4) = (2)(x) + (2)(4)
2x + 8
C = 220T + 1890.
Solve the equation for T.
220T = C - 1890
T = C/220 - 8.6
The steel produced is expected to be sold at a price of $310 per ton.
310 $/ton is a rate or slope. Write a linear equation where x is tons of steel produced and y is selling price of the steel.
y = 310x
Write and solve an equation to find the amount of steel produced if the selling price is equal to the cost of production.
* Here, note that the cost of production and tons of steel in the first equation is in the millions. The equation we just wrote for the selling price was in x tons of steel. This only matters in regards to the units you specify because; million/million = 1
The unit multiplier of all variables must be specified as same. Either everything is in millions or not.
Here, I'll leave everything in millions, change x (tons of steel) to T (mill tons steel) and "y" to "S" in million dollars selling price.
S = 310T
Set equal to Cost equation.
220T + 1980 = 310T
Solve for T, million tons of steel produced.
1980 = 310T - 220T
1980 = 90T
T = 1980/90
T = 22 million tons steel produced
Since the question is asking for the perimeter, you have to find the length of the sides of the rectangle.
If one of the sides has a length of 5 yards, then the side parallel to that side also has a length of 5 yards.
So you have to multiply 5 with 2
5×2=10
If the other side has a length of 3 yards, then the side parallel to that side also a length of 3 yards
So you have to multiply 3 with 2
3×2=6
Then you add the two answers
10+6=16
So you get 16 yards
Hope this helps!
Answer:
Except table 2, all tables have greater unit rate than the graph.
The required arrangements of tables is
Table 2 < Table 1 < Table 3 < Table 5 < Table 4 < table 7 < Table 6
Step-by-step explanation:
Formula for unit rate :
From the given graph it is clear that the line passes through the points (0,0) and (11,20). So, unit rat of graph is
Similarly, we need to calculate the unit rate for each table.
Except table 2, all tables have greater unit rate than the graph.
The required arrangement of tables is
Table 2 < Table 1 < Table 3 < Table 5 < Table 4 < Table 7 < Table 6
