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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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Angle of a triangle measures 115° the other two angles are in the ratio of 4:9 what are the measures of those two angles
nasty-shy [4]

Answer:

20, 45

Step-by-step explanation:

A triangle has 180 degrees interior angle measure. One angle measure 115 so that means the other two angles  must add up to 65.

The remaning angles form a ratio of 4:9. This means we must split 65 into a ratio of. 4:9

A ratio partition parts of something. We can add the ratio intergers to find it full length.

4+9=13.

Divide 65/13=5.

Multiply 5x4 and 5x9 serpately.

We get 20 and 45

6 0
3 years ago
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS PLEASE AND PLEASE EXPLAIN WHY THAT IS THE ANSWER
melamori03 [73]

Answer: 5x 5y

Step-by-step explanation: because of the length

4 0
2 years ago
Solve each system by substitution.<br> 1) y = 2x + 2<br> y = -5x + 16
dalvyx [7]

Answer:

y = 6

x = 2

Step-by-step explanation:

rearrange the first equation in terms of x

x = (y - 2)/2

substiute x in the second equation

y = -5[(y-2)/2] +16

Now simpilify and solve for y

y = (-5y + 10)/2 +16

y = -5/2y + 5 + 16

y + 5/2y = 5 + 16

3.5y = 21

y = 6

Now substitue y in the first equation to solve for x

x = (6 - 2)/2

x = 2

5 0
3 years ago
Read 2 more answers
Which of the following indicates that the roots of a quadratic are irrational
yan [13]
Answer would be D  You can have a rational discriminant for an irrational root, but you can also have rational discriminant for a rational root. So C is partially correct. 

<span>All prime discriminants will result in an irrational root, but not all irrational roots have prime discriminants </span>
6 0
3 years ago
I need help with this question, can you help me?​
Alenkinab [10]

Answer:

ano yan hindi ko alam yan ha kaya mo yan

7 0
3 years ago
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