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
Artist 52 [7]
3 years ago
7

Bob invested $12,350, part at 7% interest and part at 6% interest. How much money was invested at the 7% rate if each account ea

rned the same amount of interest money?​
Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0

Answer:

$5,700 was invested in the 7% account

Step-by-step explanation:

Let the amount invested in 7% interest account be x while the other account is y

Total amount invested is &12,350

Thus:

x + y = 12,350 ••••(i)

interest on 7% = 7% of x = 7/100 * x = 7x/100

Interest on 6% = 6% of y = 6/100 * y = 6y/100

Since both have same interest;

7x/100 = 6y/100

7x = 6y

y = 7x/6

Put this into equation i

x + 7x/6 = 12,350

Multiply through by 6

6x + 7x = 74,100

13x = 74,100

x = 74,100/13 = $5,700

You might be interested in
farmer joe is enclosing a rectangular area on his arm for his chicken with 200 feet of fencing that he recently acquired in a tr
Llana [10]
For this case, the area is given by:
 A = x * (200-2x)
 Rewriting:
 A = 200x-2x ^ 2
 Deriving the expression we have:
 A '= 200-4x
 Equaling zero we have:
 200-4x = 0
 We clear x:
 4x = 200
 x = 200/4
 x = 50 feet
 Then, the maximum area is:
 A (50) = 50 * (200-2 * 50)
 A (50) = 5000 feet ^ 2
 Answer:
 
the maximum possible area that can be enclosed with his 200ft of fencing is:
 A
 (50) = 5000 feet ^ 2
8 0
3 years ago
Can someone please help me with this
Alex_Xolod [135]

Answer:

  135°

Step-by-step explanation:

The reference angle appears to be about 45°, so a reasonable estimate of the angle size is 180° -45° = 135°.

__

You can do an eyeball comparison with the figure attached to see that the angle is about 135°

This is also the value I see when I place my protractor against the screen.

3 0
4 years ago
Need the answer for my hw
andrew-mc [135]
The answer is (1,1)
5 0
3 years ago
The sum of two numbers is 67. if one of the numbers is p, express the other number in terms of p
Ierofanga [76]
Since the sum of two numbers is 67
and one number is p
so the other number is (67-p)
3 0
3 years ago
Matt and Mark went to El Rodeo to have some dinner. Matt ordered 3 tacos and 2 enchiladas, which cost him $4.93. Mark ordered 2
lord [1]

Answer:

The cost of one taco is $0.87 and the cost of one enchilada is $1.16

Step-by-step explanation:

Let the cost of tacos be X

and cost of enchiladas be y

So, by using given data, we have following equations

3X + 2Y = 4.93             (1)

2X + 4Y = 6.38             (2)

So, first multiply 1st equation by 2 and 2nd equation by 3, then subtracting 1st equation by 2nd.

= 2 × ( 3X + 2Y = 4.93)       (1)

= 3 × (2X + 4Y = 6.38)        (2)

= - (6X + 4Y = 9.86)              (1)

= 6X + 12y = 19.14            (2)

= 8Y = 9.28

Y = 9.28 ÷ 8 = 1.16

By putting the value of Y in equation 1, we get

3X + 2(1.16) = 4.93

3X + 2.32 = 4.93

X = 2.61 ÷ 3 = 0.87

Hence, the cost of one taco is $0.87 and the cost of one enchilada is $1.16.

8 0
3 years ago
Other questions:
  • Last week donnell practiced the piano 3 hours longer than marcus . Together donnell and marcus practiced the piano for 11 hours
    15·2 answers
  • Nine less than the product of 6,8 and 2
    11·2 answers
  • Need to find the constant
    6·1 answer
  • 3x subtracted from 15x + x power of 2​
    9·1 answer
  • Jon Lyons refinishey furniture. He is paid $22.50 for each cabinet he refinishes. How much will Jon earn if he
    6·1 answer
  • Find the gcd of 12 18 and 24
    10·2 answers
  • What is the range of the function y=e4+1 graphed below?
    10·1 answer
  • Simplify the expression so there is only one positive power for the base, -5
    15·1 answer
  • 3878÷17 with a remainder
    14·2 answers
  • Helpppppppppppppppppp
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!