Answer:
False
Step-by-step explanation:
The equation of any circle is 2πr or 2(3.14)1 in this question.
So 2x3.14= 6.28x1=6.28
Answer:
221 minutes
Step-by-step explanation:
52 divided by 20 would be 2.6 then you take the 85 and mulitpy it by 2.6 because 52 is 2.6 times more than 20. so 85 times 2.6 would be 221 minutes.
Answer:
3/8
Step-by-step explanation:
Find and apply the LCD. In this case we have the three denominators 8, 10 and 5, which in factored form are 2(4), 2(5) and 1(5). The factors that make up the LCD are 2, 4 and 5, or 40. Note that 8, 10 and 5 all divide evenly into 40.
So our expression, 7/8-(-1/10)+(-3/5), can be rewritten as:
35/40 + 4/40 - 24/40, which simplifies first to 39/40 - 24/40, and then to:
15/40.
This 15/40 reduces to 3/8.
