Answer:
3 1/2 hours.
Step-by-step explanation:
We subtract>
Number of hours worked on a Saturday
= 7 3/4 - 4 1/4
= (7 - 4) + (3/4 - 1/4)
= 3 + 1/2
= 3 1/2 hours.
4 * -1 * 3 + 2 = -10
Sorry if I didn't do this right!
The solutions to the given system of equations are x = 4 and y = -9
<h3>Simultaneous linear equations</h3>
From the question, we are to determine the solutions to the given system of equations
The given system of equations are
-8x-4y=4 --------- (1)
-5x-y=-11 --------- (2)
Multiply equation (2) by 4
4 ×[-5x-y=-11 ]
-20x -4y = -44 -------- (3)
Now, subtract equation (3) from equation (1)
-8x -4y = 4 --------- (1)
-(-20x -4y = -44) -------- (3)
12x = 48
x = 48/12
x = 4
Substitute the value of x into equation (2)
-5x -y = -11
-5(4) -y = -11
-20 -y = -11
-y = -11 + 20
-y = 9
∴ y = -9
Hence, the solutions to the given system of equations are x = 4 and y = -9
Learn more on Simultaneous linear equations here: brainly.com/question/26310043
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The answer to the question
Answer:
option A is correct
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