Answer:
π = C / d
Step-by-step explanation:
The circumference of a circle is given by the general formula;
C = 2 * π * r .... or C = π d (r = radius, d = diameter)
We can easily modify the second formula to isolate π in order to express the circumference in relation to the diameter:
π = C / d
To obtain π, you need to divide the circumference by the diameter.
We're used to think about the circumference in terms of radius... but since we deal with 2 * r * π and that 2 * r = d... it's also convenient to use the diameter.
Answer:
$62.1
Step-by-step explanation:
The tube of toothpaste shown cost $3.45. Estimate the price per cubic inch of toothpaste.
= Volume = Length × Width × Height
= 8 in × 1.5 in × 1.5 in
= 18 in³
From the above question:
1 in³ = $3.45
18 in³ = $x
Cross Mulitiply
x × 1 in³ = 18 in³ × $3.45
x = 18 in³ × $3.45/ 1 in³
x = $62.1
Therefore, the price per cubic inch of toothpaste is $62.1
Answer:
$1,270
Step-by-step explanation:
let x be the total amount of ice cream sold without tax
x + (x*0.0635)=21270
1.0635x=21270
x=20,000
so the amount he needs to send to state is
21270-20000
1,270
Multiply the number of hours you work per week by your hourly wage. Multiply that number 52 (the number of weeks in a year.) If you make $20 an hour and work 37.5 hours per week, you annual salary is $20 x 37.5 x 52 or $39,000.
Answer:
They are increasing at the same rate.
