Answer:
This system has infinite solutions and it would be much easier to solve it by elimination but substitution it is.
Step-by-step explanation:
-3x+3y=9
-x+y=3
Isolate either x or y in any of the equations. I'll go with the second.
y = 3+x
Now substitute this for y in the first equation.
-3x+3(3+x)=9
Distribute the 3
-3x+9+3x=9
Combine like terms:
9=9
0=0
It's infinite
Answer:
so i only graphed, i know how to solve and everything but i just graphed bc what the question asked for.
Step-by-step explanation:
<u>Answer:</u>
a. the error is that he wrote 0.05 instead of 0.2
0.148835 ≈ 0.2
b.
0.2 = 2 × 0.1
0.2 = 2 × 10⁻¹
The mass is about 2 × 10⁻¹ kg
The amount of money Debby owes her sister is $9.
<h3>How much does Debby owe her sister? </h3>
When Debby borrows money, the amount of her debt increases and when she pays back her debt decreases. So, when she borrows, the amount she borrows is added and when she pays back, the amount is subtracted.
$10 - $5 + 4 = $9
To learn more about addition, please check: brainly.com/question/19628082
Answer:The answer Is D
Step-by-step explanation:
