Solution:
Using Substitution Method:
-4x+7y=-5 (Equation 1)
x-3y=-5 (Equation 2)
get the value of x from Equation 2
x=3y-5 (Equation 3)
Put the value of x from Equation 3 in Equation 1
-4(3y-5)+7y=-5
-4(3y)+20+7y=-5
-12y+7y=-5-20
-5y=-25
Negative sign on both sides cancels each other
y=25/5
y=5
Putting value of y in equation 3
x=3(5)-5
x=15-5
x=10
Therefore, [x,y]=[10,5]
Using Elimination Method
-4x+7y=-5 (Equation 1)
x-3y=-5 (Equation 2)
Multiply equation 2 with -4 in order to eliminate the x term
-4(x-3y)=-5*4
-4x+12y=20 (Equation 3)
Adding Equation 1 and 3
-4x+7y=-5
-4x+12y=20
+ - = - (Change Of Sign with x and y terms)
-----------------
0x-5y = -25
-5y=-25
y=5
Substituting y’s value is Equation 1
-4x+7(5)=-5
-4x+35=-5
-4x=-40
Cancellation of negative sign on both sides
x=40/4
x=10
[x,y]=[10,5]
The income tax for the married couples under filing a joint return receives a standard deduction of $25,100.
<h3>What is an income tax?</h3>
An income tax is a type of tax that governments impose on income generated by businesses and individuals within their jurisdiction.
In this case, the income tax for the married couples filing a joint return receives a standard deduction of $25,100
Learn more about tax on:
brainly.com/question/25783927
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Answer:
B and C
Step-by-step explanation:
100% sure
because I helped u, do this pretty please:
look up "evil masterminds be like..."
click on the video with the donkey as the thumbnail
sub to the channel that made it
First find how much she had to pay for the items without tax. This would be $1.29+$0.89= $2.18. Now add the tax to your answer. $2.18+$0.14= $2.32 To find her change, you have to subtract $2.32 from $5. $5.00-$2.32= $2.68. Her change should be $2.68
