Answer:
The person above is correct
Step-by-step explanation:
Answer:Add 15 to both sides of the equation. x
=
−
9
+
15
Add −
9 and 15
.
x
=
6
Each bag of onions costs $3.70.
<h3><u /></h3><h3><u>Equations</u></h3>
Given that Santiago buys milk and onions at the store and he pays a total of $25.78, and he pays a total of $3.58 for the milk and he buys 6 bags of onions that each cost the same amount, to determine an equation which can be used To determine how much each bag of onions costs, the following calculation must be made:
- (25.78 - 3.58) / 6 = X
- 22.20 / 6 = X
- 3.7 = X
Therefore, each bag of onions costs $3.70.
Learn more about equations in brainly.com/question/2263981
-2x - 2y = 4
x + 5y = 10
It looks like the method it would be easiest to use to solve this system is substitution. To use substitution, let us isolate x in the second equation:
x + 5y = 10
x = -5y + 10
---
-2x - 2y = 4
-2(-5y + 10) - 2y = 4
10y - 20 - 2y = 4
8y - 20 = 4
8y = 24
y = 3
Now we can substitute back into the second equation to find x:
x + 5y = 10
x + 5(3) = 10
x + 15 = 10
x = -5
Finally, to check our work:
-2(-5) - 2(3) = 4 --> 10 - 6 = 4 <--True
-5 + 5(3) = 10 --> -5 + 15 = 10 <--True
Answer:
y = 3
x = -5
Answer:
you answer should be b
Step-by-step explanation:
I am not 100% sure
