The decimal representation of any number is a linear combination of powers of 10. In other words, given a number like 123.456, we can expand it as
for any 
, so the above is the same as
Similarly, we can write
Now it's a question of reducing the fraction as much as possible. We have 
so
Answer:
five times a number of pencils plus three pencils =twenty-eight pencils.
Step-by-step explanation:
x = 5, Have a great day!
100°+(4y+25)+(3y+20)=180°
100+4y+25+3y+20=180
7y+145=180
7y=35
y=5
100°; 45°; 35°
Answer:
13
Step-by-step explanation:
a = 5
b = -8
5 - -8 = 13
Answer:
x = 6.9
Step-by-step explanation:
solve for x
