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Leokris [45]
2 years ago
6

Solve the system of equations by substitution.

Mathematics
2 answers:
Vlad1618 [11]2 years ago
5 0
The answer is A.
2 x -3 = -6
3 x 3 = 9
now add those up
-6+9=3
Setler79 [48]2 years ago
4 0

Answer:

the answer is Option A) ( -3, 3)

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

( -3, 3)

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Solve the following system of equations.
DIA [1.3K]
2x+y-3=0,x-2y=1 okay that's the answer good luck
7 0
2 years ago
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Solve for x <br> (19x-18) <br> (7x+1) <br> (10x-9)
ExtremeBDS [4]

Answer:

Step-by-step explanation:

Exterior angle property: Exterior angles equals the sum of remote angles

19x - 18 = 7x + 1 + 10x - 9

19x - 18 = <u>7x + 10x</u> + <u>1 - 9 </u>    {Combine like terms}

19x - 18 = 17x - 8          {Subtract 17x from both sides}

19x - 17x - 18 = -8

        2x - 18 = -8         {Add 18 to both sides}

              2x = -8 + 18

             2x = 10

              x = 10/2

x = 5

6 0
2 years ago
You buy a commemorative coin for $110. Each year, t, the value V of the coin increases by 4%
faltersainse [42]
A. f(x)= 100*1.04^t
Exponential functions follow the form of y=ab^x, where a is the principal amount, b is the rate of growth or decay (1+0.04), and x is the time.

b. f(8)= 100*1.04^8
100*1.368569...
136.856

Final answer: $136.86
6 0
2 years ago
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You invest $25/month at a rate of 3.25% APR compounded monthly for 30 years. What is the total interest earned and final balance
VikaD [51]

The total interest earned is 40.75 and the final balance is 65.75

<u>Solution:</u>

Given, principle amount P = 25

Interest rate r = 3.25\% = \frac{3.25}{100} = 0.0325

Times compounded per year n = 12

Time in years t = 30

Amount \ A=P\left(1+\frac{r}{n}\right)^{n t}

On substituting the values we get

A = 25 [ 1+ \frac{0.0325}{12}]^{12\times30}= 25 [2.63]= 65.75

Interest I = A - P [since, A = P+I]

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7 0
3 years ago
5. Which value of k will make the
AlexFokin [52]

Answer:

-54

Step-by-step explanation:

25x2+kx+4=0

50+kx+4=0

54+kx=0

54+-54=0

0=0

4 0
2 years ago
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