Answer:
The time it takes to boil 2.2 litres of water is approximately 141 seconds
Step-by-step explanation:
The given parameters are;
The relationship of the variables, T and A is a proportional, therefore, we have;
T ∝ A, or T/A = k = Constant of proportionality
The time it takes to boil 2.8 liters of water = 180 seconds
∴ When A = 2.8 litres, T = 180 seconds, from which we have;
k = T/A = 180 s/(2.8 L) = 450/7 s/L
k = 450/7 s/L
When A = 2.2 litres, we have;
T/A = k
∴ T = k × A
Plugging in the value for both 'k', and 'A' when A = 2.2 litres, gives;
T = k × A = 450/7 s/L × 2.2 L = 990/7 s = 141.
s
The time it takes to boil 2.2 litres of water, given a direct proportionality relation is, T = 141. seconds ≈ 141 seconds given to the nearest second.
Islands can be formed when continental plates crash into each other. When they collide, they push land upward creating a mountain that goes above land. This process is what can make an island form.
Let's find the equation.
2,200×1.085^x=y
We need x to equal 6.
2,200×1.085^6=y
2,200×1.631467508843266
3,589.23
The balance after six years is $3,589.23.
Add each angle for the question and make them equal 180
Example: number 15
(23x-5)+(21x+5)=180
Answer:
C: <u>19</u>
Step-by-step explanation:
To start we would resolve the absolute value of 
. We know that absolute value is the distance from zero so it would be 3.
Our new equation is 
Now we need to solve in the order of PEDMAS starting with parenthesis to get 
Next in PEDMAS we have Division/Multiplication since we don't have any exponents. We do all the division and multiplication left to right so we would divide to get 
and then multiply to get 
.
Finally, we only have addition left over so our answer would be 
