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
Ivenika [448]
3 years ago
7

Sam initially invested $4,500 into a savings account that offers an interest rate of 3% each year. He wants to determine the num

ber of years, t, for which the account will have less than or equal to $7,020.
Mathematics
1 answer:
Ilia_Sergeevich [38]3 years ago
3 0

Every year, Sam will have 103% of the amount from the previous year.

p\%=\dfrac{p}{100}\\\\103\%=\dfrac{103}{100}=1.03

After the first year:

1.03\cdot\$4,500

After the second year:

1.03\cdot1.03\cdot\$4,500=\$4,500(1.03)^2

After the t-th year:

\$4,500(1.03)^t

Therefore we have the inequality:

\$4,500(1.03)^t\leq\$7,020\ \ \ \ |\text{divide both sides by \$4,500}\\\\(1.03)^t\leq1.56\\\\(1.03)^{15}\approx15.56\\\\\text{therefore}\ t\leq15

<h3>Answer: t ≤ 15.</h3>
You might be interested in
Simplify the Expression I WILL GIVE BRAINLYIST!!!!!
sweet-ann [11.9K]
1+5×3/2
=1+15/2
=16/2
=8
Your answer is option A. 8.
7 0
3 years ago
Read 2 more answers
The cost of every college is expected to increase 3.5% next year.
Verizon [17]

Answer:

prt

Step-by-step explanation:

18000(1.035)=18639

3 0
3 years ago
Read 2 more answers
Which relationship in the triangle must be true ?
Ivan

Answer:

Choice B. sin(B)=cos(90-B)

Step-by-step explanation:

That cofunction identity is the one you looking for...choice B.

If you aren't convinced or don't know that identity, then maybe this will help:

90-B is actually the same thing as saying A for this right triangle since A+B=90.

So choice B basically says sin(B)=cos(A)

Well let's find both sin(B) and cos(A)

sin(B)=b/c

cos(A)=b/c

Those are the same ratios!

So they are equal!

3 0
3 years ago
Read 2 more answers
5 pounds=---------------------------- ounces
Darya [45]
5 pounds=80 oz
6 quarts =192 fluid oz
9 liters =9000milliliters
8 0
3 years ago
Square root of 10 to nearest Hun
AlekseyPX
3.16 use a calculator on these it will help out in not needing to wast a lot of paper
3 0
3 years ago
Other questions:
  • Evan ran 9 and 3/5 miles in one hour and twenty four minutes. Find the average of minutes it took him to complete one mile.
    9·1 answer
  • How are inches, yards, and feet related?
    11·2 answers
  • What is the value of the expression iºxi1 x 2 x 3 xi4?<br><br> a) 1<br> b) -1<br> c) i<br> d) -i
    6·1 answer
  • 15 is 30% of what number?
    14·1 answer
  • Mindy used 160 beads to make 25% of the bracelets needed for her friends. How many bracelets does she need to make all her frien
    7·2 answers
  • Whats The Answer Marking Brainliest, Please explain your answer:D..............................Please HELP!!!!
    13·2 answers
  • Use the symmetric property of congruence to complete the following statement if
    14·2 answers
  • Please help me with this!!!!
    10·1 answer
  • Jensen has a basket containing oranges apples and pears he picks a piece of fruit from the basket 40 times, replacing the food b
    13·1 answer
  • What is the coordinate of the midpoint of WQ?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!