1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Mars2501 [29]
3 years ago
14

Harley had $250.00 in her savings account in january. In july, she had $425.00. what is the percentage of increase in her saving

s?
A.0.017%
B.17%
C.41%
D.70%
Mathematics
1 answer:
zlopas [31]3 years ago
3 0

Answer:

d

Step-by-step explanation:

425-250=175

175/250=0.7

70%

You might be interested in
A 7-foot ladder is leaned against a building in such a way that the bottom of the ladder is 4 feet from the base of the wall. Fi
Ostrovityanka [42]
Ii think it’s t’s 55 degree, use cos
7 0
3 years ago
Biologists stocked a lake with 80 fish and estimated the carrying capacity (the maximal population for the fish of that species
kotegsom [21]

Answer:

P(t) = \frac{160000e^{1.36t}}{2000 + 80(e^{1.36t} - 1)}

Step-by-step explanation:

The logistic equation is the following one:

P(t) = \frac{KP(0)e^{rt}}{K + P(0)(e^{rt} - 1)}

In which P(t) is the size of the population after t years, K is the carrying capacity of the population, r is the decimal growth rate of the population and P(0) is the initial population of the lake.

In this problem, we have that:

Biologists stocked a lake with 80 fish and estimated the carrying capacity (the maximal population for the fish of that species in that lake) to be 2,000. This means that P(0) = 80, K = 2000.

The number of fish tripled in the first year. This means that P(1) = 3P(0) = 3(80) = 240.

Using the equation for P(1), that is, P(t) when t = 1, we find the value of r.

P(t) = \frac{KP(0)e^{rt}}{K + P(0)(e^{rt} - 1)}

240 = \frac{2000*80e^{r}}{2000 + 80(e^{r} - 1)}

280*(2000 + 80(e^{r} - 1)) = 160000e^{r}

280*(2000 + 80e^{r} - 80) = 160000e^{r}

280*(1920 + 80e^{r}) = 160000e^{r}

537600 + 22400e^{r} = 160000e^{r}

137600e^{r} = 537600

e^{r} = \frac{537600}{137600}

e^{r} = 3.91

Applying ln to both sides.

\ln{e^{r}} = \ln{3.91}

r = 1.36

This means that the expression for the size of the population after t years is:

P(t) = \frac{160000e^{1.36t}}{2000 + 80(e^{1.36t} - 1)}

4 0
3 years ago
Plz helppppp :)<br> 5(x−3 3/4)=7 1/2
pentagon [3]

the answer is 10x

Solve for

x

by simplifying both sides of the equation, then isolating the variable.

x

=

10

5 0
2 years ago
Read 2 more answers
If you guys want me to join y’all’s class in like zoom then tell me your class id and password.
sammy [17]

Answer:

You cant join mine. Mine has strict rules and c rap sign up with a email and stuff.

Step-by-step explanation:

6 0
3 years ago
What is 2/2 in word form?
Leto [7]

Answer: 2 over 2 or 2 halfs

Step-by-step explanation:

The / bar means over

6 0
3 years ago
Other questions:
  • 12 divided by what equals 9
    8·1 answer
  • Please help me. I really need help with this proof. <br>​
    12·1 answer
  • Only got 5 min left
    10·2 answers
  • The figure below is a square pyramid where the height of the pyramid is 2 centimeters and the volume is 24 cubic centimeters. If
    13·1 answer
  • The graph shows the solution to which system of equations?
    6·1 answer
  • Please answer !!! To solve the system of equations below, Luanne isolated the variable y in the first equation and then substitu
    14·2 answers
  • A wooden plank of length x is cut into 8 sections such that each section is at most 5/2 meters long. What is the length of the e
    10·2 answers
  • What is the mean of 72, 65, 76, 34, 98, 76, 64, 54, and 64.
    11·2 answers
  • A boogie board that has a regular price of $69 is on sale at a 35% discount. What is the sale price with 7% tax? Please show how
    15·2 answers
  • Given that
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!