Answer:
The system of linear equations are 
and 
Step-by-step explanation:
Given : The number of students who chose lunch was 5 more than the number of students who chose breakfast. Let x represent the number of students who chose breakfast and y represent the number of students who chose lunch.
(50 students picked, 25 picked dinner the rest picked lunch and breakfast)
To find : Write a system of linear equations that represents the numbers of students who chose breakfast and lunch ?
Solution :
The number of students who chose breakfast be 'x'
The number of students who chose lunch be 'y'.
The number of students who chose lunch was 5 more than the number of students who chose breakfast.
i.e.
Now, Total student were 50 and 25 picked dinner the rest picked lunch and breakfast i.e. 25.
So,
Therefore, the system of linear equations are and
The decimal place in the quotient or product should be based in the decimal <span>place of the given with the least significant figures</span>
Answer: x = 1
Step-by-step explanation: When we have this kind of setup, we want to put our variables together on one side of the equation and our numbers together on the other side of the equation.
So first, let's put our variables together on the left side
by subtracting 2x from both sides of the equation.
That gives us 3x + 9 = 12.
Now we can move our numbers to the right by
subtracting 9 from both sides and we get 3x = 3.
Now divide both sides by 3 and <em>x = 1</em>.
Y = 5(x-3)/3
To find this, set up the equation as so:
3y/5 + 3 = x
Then, proceed to solve the two-step equation:
3y/5 = x - 3
3y = 5 (x - 3)
y = 5 (x - 3) / 3
Hope this helps!
The equation is 500<7.50<950
then you solve for x
then you get 66.66<x< 126.66
this means that to make $500 you need to work at least 66.66 hours and to make $950 you need to work for at least 126.66 hours
