First we have to assume that each quarter touched each other. Hence the area of the table not covered by the coins (A) is equal to the total area of the table (At) minus the total area of the coins (Ac). Coins are circle, so
and r =24.26mm. The area of one coin is then 1848.98mm^2. Hence the equation is A = At - xAc where x is the number of coins.
120 grams half life at 45 days would be 60 then half life of 60 in another 45 days (90 total) should be 30 grams
The correct answer is that the angles created are equal.
The steps given are used to create an angle bisector of the angle. That means it divides the angle into 2 congruent angles.
First let's solve for the rate, "b", by setting up a ratio with the two points given:
16.875/7.5=(ar^3)/(ar)
2.25=r^2
r=1.5
Now we need to solve for the initial value a using either point given...
7.5=a(1.5)^1
7.5=1.5a
a=5
So now we have solved for both variables and have a complete equation:
y=5(1.5)^x
Answer: See explanation
Step-by-step explanation:
Let Amara money be represented by a
Since Candace has $15 more than Amar. Therefore, Candace money will be = a + 15
Their total money will be 85 and this can be represented in an equation as:
a + (a + 15) = 85.
a + a + 15 = 85
2a + 15 = 85
2a = 85 - 15
2a = 70
a = 35
Amar money = $35
Candace money = $35 + $15 = $50
