Alexander purchased the computer for a price of $ 1000
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the price of the computer be = A
Now , the regional price of the computer be = $ 1200
The sale price of the computer is = ( 5/6 ) of original price
So , the equation will be
The sale price of the computer is = ( 5/6 ) x 1200
= 5 x 200
= $ 1000
Therefore , the price of the computer is $ 1000
Hence , Alexander purchased the computer for a price of $ 1000
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B) Calculate the average speed of the train.
1 1/8 + 1 1/4
Answer:
Step-by-step explanation:
-This is a linear relationship problem modeled as:
where:
Given the constant 40, and 12 pages per day as the rate of change we substitute our variables in the form of the formula above as:
For this case we have that by power properties it is fulfilled:
Now, we can rewrite the expression as:
We also have by definition of properties of powers that:
So:
Answer:
Option D