You are saving your money to buy a new pair of shoes. The shoes cost $52. You have already saved $36. Write and solve an equatio
1 answer:
You might be interested in
The particular solution to the differential equation which describes the number of fish over time will be y = 40(0.99)^t.
<h3>What is an exponent?</h3>Consider the function:
y = a (1 ± r) ˣ
Where x is the number of times this growth/decay occurs, a = initial amount, and r = fraction by which this growth/decay occurs.
If there is a plus sign, then there is exponential growth happening by r fraction or 100r %
If there is a minus sign, then there is exponential decay happening by r fraction or 100r %
A population of endangered salmon, S(t), starts out with 40 fish and decreases proportionally at a rate of 0.01 fish per year. Let t be measured in years.
Let y be the number of fish over time (t).
Then we have
Then the particular solution to the differential equation which describes the number of fish over time will be y = 40(0.99)^t.
More about the exponent link is given below.
#SPH1
Answer:
Given the statement: The length of an aquarium, which has the form of a rectangular solid, is equal to 5 decimeters, and the width is 4/5 the length.
Since, aquarium is in the form of a rectangular solid.
Length of an aquarium(l) = 5 dm
Width of an aquarium(w)=
It is also given that when you put 40 liters of water into the aquarium, it was full to its volume.
Volume of Rectangular solid(V) is given by;
where l is the length , w is the width and h is the height of the rectangle respectively.
Volume(V) of an aquarium = liter.
Using volume formula to calculate the height(h);
Divide both sides by 20 we get;
h = 3 dm [ 1 liter = 1 cubic dm]
We have to find the what part of length makes up the height of the aquarium.
where l = 5 dm
therefore, part of the length makes up the height of the aquarium.