Answer:
45= 6x + 3 answer is 7 shirts
Factorise to (5z-1)(z-4) = 0
then put 5z-1 = 0 so 5z = 1 z = 1/5
z-4=0 z = 4
z = 1/5 and 4
Answer:
the slope is 2/3
Step-by-step explanation:
the line starts at 5(b) and to get a whole number point you go up 2 and over 3.
The first method is substitution. This is when the x or y value that is known is substituted into one of the equations. This should be done when you can easily see or find the x or y value.
Example: x = 3, and x + 8y = 30.
The x was given in the first equation (x = 3), and can therefore be substituted into the other equation to find y.
The next method is elimination. This is when you add the two systems together and eliminate either the x values or the y values. This should be done when there are opposite signs of the same number in both equations.
Example: y - 3x = 24, and 2y + 3x = 7
In the first equation you have -3x, and in the second you have 3x. If you were to add the two equations, the x values would cancel out and you would be left with:
y + 2y = 24 + 7
And then you could solve for y.
The last method is to graph both equations and to see at which point the lines intersect.
Answer:
Hierarchical layers of abstraction in computers are used to hide information and manage deep functionality by allowing the separation to facilitate platform independence.
Step-by-step explanation:
Hierarchical layers of abstraction in computers:
Hierarchical layers of abstraction in computers are used to hide information and manage deep functionality by allowing the separation to facilitate platform independence.
In Hierarchical layers, users work independently at each level of the hierarchy.
example:
Abstraction in computing is language abstraction
Development of programming languages from machine language to assembly language and then high-level language is an example of Hierarchical layers of abstraction. Here each stage is a base for the next stage.
