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
Hatshy [7]
2 years ago
15

A stockbroker has money in three accounts. The interest rates on the three accounts are 7%, 8%, 9%. If she has twice as much mon

ey invested at 8% as she does in 7% Three times as much at 9%
as she has at 7%, and the total interest for the year is $150 how much is invested at each rate?


The stockbroker invested $___at 7%,$___at 8%, and $___at 9%
Mathematics
1 answer:
Sveta_85 [38]2 years ago
5 0

Answer:

x=amount invested at 7%

2x=amount invested at 8%

3x=amount invested at 9%

interest=principal*rate*time (time=1 year)

$150=0.07x+0.08*2x+0.09*3x

$150=0.07x+0.16x+0.27x

$150=0.50x

$1500=5x

x=$300 invested at 7%

2x=$600 invested at 8%

3x=$900 invested at 9%

Step-by-step explanation:

You might be interested in
A pitcher contains 1.75 liters another contains 1800 milliters of apple juice which one has more juice
Strike441 [17]
1liter=1000ml
1.75l=1750ml

1800ml>1750ml


1800ml is bigger

4 0
3 years ago
Read 2 more answers
How do I do this problem ?
katrin2010 [14]
Y=13 Because a line equals 180. 180-11=169/13=13
x=8 because 180+22=202-4=198/11=18
3 0
3 years ago
Help me plz<br><br> 2<br> _ Y + 7 = 15<br> 3
julia-pushkina [17]

Answer:

y= 12

Step-by-step explanation:

2/3 y + 7 = 15

Subtract 7 from each side

2/3 y + 7-7 = 15-7

2/3 y = 8

Multiply each side by 3/2 to isolate y

3/2 * 2/3 y = 3/2 * 8

3/2 * 2/3 y = 3 * 4

y = 12

7 0
3 years ago
WILL GIVE BRAINLIEST TO THE RIGHT ANSWER
Kryger [21]
It depends on the vehicle but normally four of five
8 0
3 years ago
Read 2 more answers
PLZ HELP WILL GIVE BRAINS :)
kipiarov [429]
It would be 75 cents per song, I hope you get a good grade!
5 0
2 years ago
Other questions:
  • find each comission, given the sale and the comission rate 1. $2,500, 8% 2. $ 2,00, 7.5% 3. $600, 4.5%
    12·2 answers
  • X=3 calculate the value of x cubed -x
    13·1 answer
  • X+16=3 equation help please
    7·2 answers
  • 8989890+85769090790509709-590
    14·1 answer
  • Calculate <br> 2.43 x 4 =
    10·2 answers
  • What are the zero(s) of the function f(x) = the quantity of 5 x squared minus 25 x, all over x ? (2 points)
    14·1 answer
  • PLEASE HELP!!! A $950 computeris on sale for 15% off. If sales tax is 6% will this computer cost including tax?
    12·2 answers
  • Which cords are congruent
    5·1 answer
  • How many sixes are equal to double 27?
    9·2 answers
  • After 1 minute, a submarine had descended to −280 feet. After 9 minutes, the submarine had descended to −360 feet. Assuming a li
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!