What is the solution to this system of equations? 4x + 5y = 7 3x – 2y = –12What is the solution to this system of equations? 4x + 5y = 7 3x – 2y = –12

The solution of the system of equations is and

Explanation:

The system of equations are and

To determine the solution of the equation, let us solve the equations by elimination method.

Thus, multiplying the equation by 2, we get,

Multiplying the equation by 5, we get,

Adding these two equations, we have,

Dividing both sides by 23, we have,

Thus, the value of x is

Substituting in the equation , we get,

Thus, the value of y is

Hence, the solution of the system of equations is and

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet