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
Roman55 [17]
3 years ago
5

Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did

she earn? Use the formula I=Prt to find your answer, where I is interest, P is principal, r is rate and t is time. Enter your solution in decimal form rounded to the nearest hundredth. For example, if your solution is 12%, you would enter 0.12.
Mathematics
1 answer:
Mnenie [13.5K]3 years ago
3 0
\bf ~~~~~~ \textit{Simple Interest Earned}
\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\to &\$450\\
P=\textit{original amount deposited}\to& \$3000\\
r=rate\to r\%\to \frac{r}{100}\\
t=years\to &3
\end{cases}
\\\\\\
450=(3000)(r)(3)\implies \cfrac{450}{(3000)(3)}=r\implies \cfrac{1}{20}=r
\\\\\\
0.05=r\implies r\%=0.05\cdot 100\implies r=\stackrel{\%}{5}
You might be interested in
Determine whether the series is convergent or divergent by expressing Sn as a telescoping sum. If it is convergent, find its sum
Inessa05 [86]
<span> i'm going to be slightly extra careful in showing each step. specific, ln [n / (n+a million) ]= ln n - ln(n+a million). So, we've sum(n=a million to infinity) ln [n / (n+a million) ] = lim(ok--> infinity) sum(n=a million to ok) ln [n / (n+a million) ] = lim(ok--> infinity) sum(n=a million to ok) [ln n - ln(n+a million)] = lim(ok--> infinity) (ln a million - ln 2) + (ln 2 - ln 3) + ... + (ln ok - ln(ok+a million)) = lim(ok--> infinity) (ln a million - ln(ok+a million)), for the reason that fairly much all the words cancel one yet another. Now, ln a million = 0 and lim(ok--> infinity) ln(ok+a million) is countless. So, the sum diverges to -infinity. IM NOT COMPLETELY SURE

</span>
3 0
3 years ago
Line AB contains points A (3, −2) and B (1, 8). The slope of line AB is −5 negative 1 over 5 1 over 5 5
pentagon [3]
Slope = (8+2)/(1 - 3) = 10/-2 = -5
answer
<span> −5 </span>
8 0
3 years ago
Read 2 more answers
What is the period of the sinusoidal fynction below?<br> f(x) = 2 cos(3x – 360) + 3
dexar [7]

Answer:

Here you go! I have a graph for your answer!

Step-by-step explanation:

The Xmin is -10

The Xmax is 10

The Ymin is -10

Ans the Ymax is 10

4 0
3 years ago
Write an equation in slope-intercept form of the line with slope 3/4 that contains the point (-4,1)
marusya05 [52]

Answer:

y = 3/4x + 4

Step-by-step explanation:

to put it into slope intercept form, you need to find the y intercept or b becasue the slope intercept form is y = mx + b where b is the y intercetpt and m is the slope. To find b you insert the points you were given so 1 = -4(3/4) + b

which simplifies to 4 = b so then you can put in your slope and y intercept into slope intercept form

6 0
3 years ago
What is (6.89+14.52)+(-14.52)???
MrRa [10]
The answer is 6.89 because
6.89+14.52=21.41
So 21.41+(-14.52)=6.89
7 0
4 years ago
Other questions:
  • Find the value of x and the value of y? Please help!!!
    9·1 answer
  • Twenty identical looking packets of white power are such that 15 contain cocaine and 5 do not. Four packets were randomly select
    14·1 answer
  • Can someone help me with this and answer asap.
    12·2 answers
  • Can someone help me find the slope intercept of this ?<br><br> 2x-8y=16
    10·1 answer
  • One leg of a right triangle has a length of 7m. The other sides have lengths that are consecutive integers. Find these lengths.
    12·1 answer
  • If (8z − 9)(8z + 9) = az2 − b, what is the value of a? (5 points)
    5·1 answer
  • (10 POINTS AND BRAINLIEST FOR BEST)
    10·1 answer
  • Which scatterplot has a correlation coefficient closest to r = –1?
    13·2 answers
  • Facts about Geometry and Geology?
    9·1 answer
  • 1/2(4^3 - 6 x 3^2) will give golden crown to smartest. NO LINKS PLEASE.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!