menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
An amount of $700 is invested partly at 8% and partly at 10%. The yearly income from both investments is $64. The amount invested at 8% is k dollars. What is the value of k?
Ask a Question
Questions
Unanswered
Tags
Ask a Question
An amount of $700 is invested partly at 8% and partly at 10%. The yearly income from both investments is $64. The amount invested at 8% is k dollars. What is the value of k?
asked
Jun 25, 2018
62.1k
views
3
votes
An amount of $700 is invested partly at 8% and partly at 10%. The yearly income from both investments is $64. The amount invested at 8% is k dollars. What is the value of k?
Mathematics
high-school
Ser
asked
by
Ser
7.8k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
1
vote
A8% is X
10% is 700-X
X(.08)+ .10(700-X)= 64
.08x+ 70-.10X=64
-.02X+70=64
-70=-70
-.02x= -6
Divide by -.02
X= 300
Answer $300 was invested at 8%
Check 300 times .08= 24. 700-300=400 times .10 = 40 and 24+40=64
JonAlb
answered
Jul 2, 2018
by
JonAlb
8.2k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
No related questions found
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org