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prisoha [69]
3 years ago
11

By elimination method solve: 217x+131y=913 and 131x+217y=827

Mathematics
1 answer:
malfutka [58]3 years ago
3 0
◆ Linear equations in two Variables ◆

Hey !!

Check the attachment.
Hope it helps you :)

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Kira received a $1600 bonus. She decided to invest it in a 3-year certificate of deposit (CD) with an annual interest rate of 1.
erma4kov [3.2K]

Answer:

1. $1666.17

2. $666.17

Step-by-step explanation:

The bonus of $1600 that Kira gets is invested for 3 years at an annual interest of 1.36% compounded annually.

Therefore, after 3 years Kira will have in her account  

1600(1+\frac{1.36}{100} )^{3} =1600(1.0136)^{3}= 1666.17 dollars (Answer)

Therefore, the amount of interest earned by Kira's investment after 3 years will be  

$( 1666.17 - 1600 ) = $666.17 ( Answer )

5 0
3 years ago
Here is the picture pls answer another for my lil friend lol
Fantom [35]

Answer:

Hey there!

The perimeter can be expressed as 140+140+68\pi

This is equal to 493.52 m

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5 0
4 years ago
The ampitude/frequency/period of y=1/4cos1/2x is 4 pie
Fantom [35]
Amplitude: 1/4 (= |a|)
Frequency: 1/2 (= |b|)
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7 0
4 years ago
Can someone help with these two questions
riadik2000 [5.3K]

Answer:

1. A

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5 0
3 years ago
determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution. x+y=5 2x-y=-
max2010maxim [7]

Answer:

(2/3, 13/3)    (Exactly one solution)

Step-by-step explanation:

Write these equations in a column:

 x+y=5

2x-y=-3

Note that we can eliminate y immediately by adding these two equations together. We get:

3x = 2, so that x = 2/3.

Substituting 2/3 for x in the first equation, we get:

2/3 + y = 5.  Clear out fractions by multiplying all three terms by 3:

2 + 3y = 15, or 3y = 13.  Then y = 13/3, and the solution is

(2/3, 13/3)      There is exactly one solution.

7 0
4 years ago
Read 2 more answers
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