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
BabaBlast [244]
3 years ago
11

Ramona has a total of $5000 to invest. She puts part of it in an account paying 5% per year interest and the rest in a GIC payin

g 7.2% interest. If she has $349 in simple interest at the end of the year, how much was invested at each rate?
Mathematics
1 answer:
frosja888 [35]3 years ago
3 0
Let x represent the amount invested in the account paying 5% interest per year. 
Let y represent the amount invested in the GIC paying 7.2% interest. 
x + y = $5,000 ⇒ y = $5,000 - x
0.05x + 0.072 = $349 ⇒ (multiply by 1000 to get rid of decimals) ⇒
50x + 72y = $349,000
Then substitute the y equation into the second equation. 
50x + 72 (5,000 - x ) = 349,000
50x + 360,000 - 72x = 349,000
50x - 72x = 349,000 - 360,000
-22x = -11,000 (divide both sides by -22)
x = 500
∴ the amount invested in the account paying 5% interest per year is $500. 
Now solve for y. 
x + y = 5,000
500 + y = 5,000 
y = 5,000 - 500
y = 4,500 
∴ the amount in the GIC paying 7.2% interest is $4,500. 
You might be interested in
Terry earns $6.50 per hour babysitting.
Ede4ka [16]
It's c because$6.50h = m h = 4.25
3 0
3 years ago
Aerobics classes class $153.86 for 14 sessions. What is the fee for six sessions?
Brrunno [24]

153.86/14=10.99

10.99*6=$65.94

4 0
3 years ago
Which ordered pair is a solution of the equation y = 4x? (1, 3) (-1, -4) (-4, -1) (1, -4)
Sphinxa [80]
(-4,-1) because -1 × 4= -4 and -4=y
4 0
3 years ago
Plsss answer this!!!
egoroff_w [7]

Answer:

(-2,-2)

Step-by-step explanation:

The domain is -2 -2 because that's all the x values that are possible on this graph

5 0
4 years ago
A line has a y-intercept of 4 and a slope of 7. What is its equation in slope-intercept form?
gladu [14]

Answer:

y=7x+4

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the firsf composite number greater than 30 that is not a multiple of 2
    13·1 answer
  • Line AB contains points A (0, 1) and B (1, 5). The slope of line AB is
    11·2 answers
  • Which of the statements below best describes direct variation?
    8·1 answer
  • ASE
    12·1 answer
  • Need help on this question 36
    13·1 answer
  • My daughter needs help with math​
    15·1 answer
  • Corrado has 27 books in his room that he has already read. He wants to give them away to his 3 younger siblings. How many books
    15·1 answer
  • My homework says, "Does the graph represent a proportional relationship? Why or why not? You MUST explain to get credit."
    12·1 answer
  • A number y​ is no less than "-4"
    7·2 answers
  • 3y - 2x = 9 slope intercept form
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!