A.
y = 3.15x + 79.48
B.
y = 79.48x + 3.15
C.
y = 79.48x - 3.15
D.
y = 3.15x - 79.48
The correct equation to determine the amount of money Craig earned yesterday is 'y = 3.15x + 79.48', where 'y' is the total money earned, '3.15' is the hourly wage, 'x' is the number of hours worked, and '79.48' is the total tips.
The subject of the question is a mathematical problem related to real-world applications of linear equations. In this problem, Craig earns a fixed number of dollars per hour, $3.15, plus a fixed amount of tips, $79.48. These two groups of money create his total earnings for the day. Therefore, the equation to represent this relationship should reflect this fact by multiplying the number of hours he works, represented by 'x', by his hourly wage, and then adding his total tips.
Therefore, the correct equation is: y = 3.15x + 79.48, where 'y' represents the total amount of money Craig earned yesterday. In this equation, '3.15x' represents Craig's earnings from his hourly wage, and '79.48' represents his tips.
#SPJ12
4=-x-y
2x-y=10
Hello Jay
4=-x-y
2x-y=10
We need to solve 4=-x-y for x
Now add x to both sides
4+x=-x-y+x
x+4==-y
Add -4 to both sides
x+4-4=-y-4
x=-y-4
Now we need to substitute -y-4 for x in 2x-y=10
2x-y=10
2(-y-4)-y=10
To find the result of this factor we need to simplify
-3y-8=10
Add 8 to both sides so we can start finding the y value
-3y-8+8=10+8
-3y=18
Divide both sides by -3 so we can find the y value
-3y/-3=18/-3
y=-6
Now let's find the x value by substitute -6 for y in x=-y-4
x=-y-4
x=-(-6)-4
x=2
Answer: x=2 and y=-6
I hope that's help:0
1.81 - 4x²=0
2. 4s² + 9 = 12s