Answer:
The correct answer is option 2: 32 cm
Step-by-step explanation:
Let l be the length of the picture frame and w be the width
Then according to given statements, the system of equations will be

Putting w = 2l-4 in equation 1

Putting the value of l in equation 2

The width is 32 cm
Hence,
The correct answer is option 2: 32 cm
Step-by-step explanation:
2x + 10y = 50 ... 1
1.5x + 25y = 90 ...2
...1 × 2.5
5x + 25y = 125 ...3
...3 - ...2
3.5x = 35
x = 10
replaced x = 10 in ...1
2(10) + 10y = 50
20 + 10y = 50
10y = 50 - 20
10y = 30
y = 3
The answer is 20 because 292+20=312
Answer:
y=4
Step-by-step explanation: