2x + 3y = -11 -8x - 5y = 9
1 answer:
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Answer:
x ≈ 9.5 , y ≈ 15.3
Step-by-step explanation:
sin32° = =
( multiply both sides by 18 )
18 × sin32° = x , then
x ≈ 9.5 ( to the nearest tenth )
cos32° = =
( multiply both sides by 18 )
18 × cos32° = y , then
y ≈ 15.3 ( to the nearest tenth )
Let the smaller number be x.
Let the bigger number be y.
Rearrange equation (2):
Sub (2) into (1):
Sub x = 1 into (2):
Answer: The two numbers are 1 and 9.
Let the bigger number be y.
Rearrange equation (2):
Sub (2) into (1):
Sub x = 1 into (2):
Answer: The two numbers are 1 and 9.