Answer:
Because we actually divide by 10 when a number is multiplied by 0.1.
Step-by-step explanation:
Let 
be a number.
When we multiply a number by 10:
(One '0' is increased in the number)
For example:
Considering a decimal number:
Multiplying a number with 0.1 (which is actually 
) means dividing the number by 10.
Considering a decimal number:
<em>Therefore, When multiplying a number by 0.1, move the decimal to the left.</em>
Subsitution
solve for y in first equation
add 2x to both sides
y=2x+8
sub 2x+8 for y in second equation
16+4x=2(2x+8)
divide both sides by 2
8+2x=2x+8
true
there are infinite solutions for x
therefor infinite soltions for y
there are an infinite number of solutions
Answer:
Yes. Both are graphing calculators. TI 83 has a black only screen while the TI 84 has a colored screen
7, 5, 1, 6, 2 Mean Absolute Deviation = 2.16
3, 6, 3, 2, 1 Mean Absolute Deviation = 1.2
