Let <em>A</em> be your age, <em>B</em> be the age of your brother and <em>S</em> be the age of your sister.
Since your brother is 1/4 your age, then:
Since your sister is 8 years older than your brother, then:
Since your sister is 12 years old, then:
Use the second equation to find your brother's age by plugging in <em>S=12</em>:
Plug in <em>B=4</em> in the first equation to find your age:
Therefore, you are 16 years old.
Answer:
A and C are not right triangles
Step-by-step explanation:
When using the pithag theorem, both A and C are not right triangles.
The Answer Is Probably, "-6" .
Answer:
-3 -5 and 1, 3
Step-by-step explanation:
Answer:
$5.40
Step-by-step explanation:
First, figure out the cost of the items with tax; for Tommy we have 20*0.08 = 1.6, add that 1.6 to the 20 and his purchase is $21.6, for John we have 25*0.08 = 2, add 2 to his 25 and his purchase is $27. To find the difference we subtract 27-21.6 = 5.4 or $5.40
