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Vikentia [17]
3 years ago
8

Helene invested a total of $1,000 in two simple-interest bank accounts. One account paid 5% annual interest; the other paid 9% a

nnual interest. The total amount of interest she earned after 1 year was $70. Find the amount invested in each account.
Helene invested $ ___ in the 5% interest account and $ ___ in the 9% account.
Mathematics
1 answer:
Alex17521 [72]3 years ago
3 0

Answer:

Step-by-step explanation:

yoooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo thats a test question

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Solve for x:
Dafna11 [192]

Step-by-step explanation:

5*(4x+8)=6*(2x+3)

20x+40=12x+18

20x _12x= 18_40

8x = _22

x=_22/8

x= _11/4

8 0
3 years ago
Use the work shown to find the solutions of the quadratic equation. x2 – x –3/4=0 x2 – x = 3/4
bija089 [108]

Answer:

x = - \frac{1}{2}, x = \frac{3}{2}

Step-by-step explanation:

Given

x² - x - \frac{3}{4} = 0

Multiply through by 4 to clear the fraction

4x² - 4x - 3 = 0

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 4 × - 3 = - 12 and sum = - 4

The factors are + 2 and - 6

Use these factors to split the x- term

4x² + 2x - 6x - 3 = 0 ( factor the first/second and third/fourth terms )

2x(2x + 1) - 3(2x + 1) = 0 ← factor out (2x + 1) from each term

(2x + 1)(2x - 3) = 0

Equate each factor to zero and solve for x

2x + 1 = 0 ⇒ 2x = - 1 ⇒ x = - \frac{1}{2}

2x - 3 = 0 ⇒ 2x = 3 ⇒ x = \frac{3}{2}

8 0
3 years ago
What is the square root of 5?
shutvik [7]
5 x 5 = 25

answer: 25.
7 0
3 years ago
Read 2 more answers
The fraction subtracted from 5/3 to get 1 is_____​
siniylev [52]

Answer:

2/3

Step-by-step explanation:

I am not sure

7 0
3 years ago
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Please answer!!!!!!!
lana66690 [7]

Answer:

the correct answer is C

4x=52

52 divided in 4 parts is 13, so each ticket is 13 dollars

8 0
3 years ago
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