Asked by Elizabeth Brooks on Apr 25, 2024
Verified
Solve for x and y in the following pair of equations:
y = -0.2x + 4.2
X - 0.5y = 10
A) x = 11; y = 2
B) x = 2; y = 11
C) x = 11; y = 6.4
D) x = 6.45; y = 2.9
E) x = 6.4; y = 11
System of Equations
A set of two or more equations that share two or more unknowns.
Coefficient
A numerical or constant factor before and multiplying the variable in an algebraic expression.
- Implement algebraic strategies to resolve linear equations with one or two variables.
Verified Answer
SS
Simranjeet Singh5 days ago
Final Answer :
A
Explanation :
To solve for x and y, substitute the expression for y from the first equation into the second equation: X - 0.5(-0.2x + 4.2) = 10. Simplify and solve for x, then use the value of x to find y. Solving gives x = 11 and y = 2.
Learning Objectives
- Implement algebraic strategies to resolve linear equations with one or two variables.