Answer:
1) <u>9450 = 21n</u>
2) 9450/21 = 21/21n
<u>450 = n</u>
3) you can <u>check the answer by multiplying 450 by 21</u>
Step-by-step explanation:
hope this helped
let me know if I am incorrect
Answer:
x^2=-10
Step-by-step explanation:
x squared equals to negative 10
−10x+5y=10
x−5y=−28
Rewrite equations:
x−5y=−28
−10x+5y=10
Step: Solve:
x−5y=−28
x−5y+5y=−28+5y(Add 5y to both sides)
x=5y−28
Step: Substitute:
−10x+5y=10
−10(5y−28)+5y=10
−45y+280=10(Simplify both sides of the equation)
−45y+280+−280=10+−280(Add -280 to both sides)
−45y=−270
−45y
−45
=
−270
−45
(Divide both sides by -45)
y=6
Step: Substitute:
x=5y−28
x=(5)(6)−28
x=2(Simplify both sides of the equation)
Answer:
x=2 and y=6
1. Integer
2. Rational Number
3. Rational Number
4. Whole number
5. Rational Number
Let me know if these are correct. Correct if I’m wrong I don’t want to give wrong answers
