Answer:
<u>x = 8 and y = 5</u>
Step-by-step explanation:
The question is as following:
what is x and y for the following system of equations:
50x + 30 y = 550 ⇒ (1)
44x + 36 y = 532 ⇒ (2)
Subtract (1) - (2)
∴ 6x - 6y = 18
Divide both sides by 6
∴ x - y = 3
∴ x = 3 + y ⇒ (3)
Substitute with the value of x at (1)
50(3+y) + 30y = 550
Solve for y
150 + 50y + 30y = 550
80y = 550 - 150 = 400
∴ y = 400/80 = 5
Substitute with the value of y at (3)
∴ x = 3 + y = 3 + 5 = 8
<u>So, x = 8 and y = 5</u>
Answer:
The answer is D
Step-by-step explanation:
You multiply the number of hours by 8 to calculate gross pay. Then you form coordinates. In this problem for example (0,0); (3,24); and so on.
Hope this helps!
The commutative property is when you are switching the order of the numbers/variables, and the associative property is when you switch the grouping. So for the first line, the answer would be the the associative property, the second line is the commutative property, and so on and so forth. Does this help you?
Answer:
$6.05
Step-by-step explanation:
$35.56 * .17 = 6.05
Remember to use SOH CAH TOA. Very simple. I ended up getting 18/17 as my answer
