Answer:
Circle B
3.14 cm
Step-by-step explanation:
1. The diameter is twice the radius, so the diameter of Circle B is ...
2 × 5 cm = 10 cm
This diameter is greater than the 9 cm diameter of Circle A, so Circle B is larger and will have a larger circumference.
2. The circumference is the product of π and the diameter. Then the difference between the two circumferences is ...
... (circle B circumference) - (circle A circumference) = π·(10 cm) - π·(9 cm)
... = π·(10 -9) cm = π·1 cm ≈ 3.14 cm
Answer:
C. Four less than the product of two and a number is less than the product of four and the same number increased by eight.
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Converting expressions to word form
Step-by-step explanation:
<u>Step 1: Define</u>
2x - 4 < 4x + 8
<u>Step 2: Translate</u>
"2x" is the product of two and a number <em>x</em>
" - 4" is four less
"<" is less than
"4x" is the product of four and a number <em>x</em>
" + 8" is increased by 8
<u>Step 3: Combine</u>
The difference between the product of two and a number <em>x</em> and 4 is less than the sum of the product of four and a number <em>x</em> and 8.
<u>Step 4: Reword</u>
Four less than the product of two and a number is less than the product of four and the same number increased by eight.
Answer:
(5 , 7)
Step-by-step explanation:
let a = the number of adult tickets
let c = the number of children tickets
then we have to solve the following system
a + c = 12
14.5a + 9c = 135.5
we proceed by Substitution:
c = 12 - a
14.5a + 9c = 135.5
After some calculations we find
a=5 and c=7
Answer:
=78.5cm
Step-by-step explanation:
pi=3.14
formula=3.14×r×r
3.14×5×5
78.5