Twice a number plus three times another number equals 4. three times the first number plus four times the other number is 7. what are the numbers?

x=5, y=-2. (5, -2).

Step-by-step explanation:

2x+3y=4

3x+4y=7

3(2x+3y)=3(4)

-2(3x+4y)=-2(7)

6x+9y=12

-6x-8y=-14

y=-2

2x+3(-2)=4

2x-6=4

2x=4+6

2x=10

x=10/2

x=5

answer: plz put a pic in so i can answer it

step-by-step explanation:

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