Answer:
24 feet
Step-by-step explanation:
1) sum the dimensions
7+5 = 12
2) multiply the value by 2
12 x 2 = 24 feet
Answer:
y = -1
Step-by-step explanation:
Set up
x-2y = 8
Substitute 5-y for x
5 - y -2y = 8
Combine like terms
-3y + 5 = 8
Subtract 5 from both side
-3y = 3
Divide by -3
y = -1
Answer:
life is something great (lie)
Step-by-step explanation:
Let Cynthia's age be C, then Abigail's age A
since Abigail is 8 years older, her age A = C+8.
20 years ago Cynthia's she was C-20 and Abigail was A-20=3(C-20)
A-20=3C-60
A=3C-40
but we just said A=C+8
so 3C-40=C+8
2C=48
C=24
A=24+8=32
Cynthia's age is 24 and Abigail's age is 32
The cost of one adult ticket is $12 and cost of one child ticket is $8.
Step-by-step explanation:
Let,
Cost of one adult ticket = x
Cost of one child ticket = y
According to given statement;
x+4y=44 Eqn 1
5x+2y=76 Eqn 2
Multiplying Eqn 1 by 5

Subtracting Eqn 2 from Eqn 3

Dividing both sides by 18

Putting y=8 in Eqn 1

The cost of one adult ticket is $12 and cost of one child ticket is $8.
Keywords: linear equation, elimination method
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