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rodikova [14]
4 years ago
7

I need an equation example with an unknown factor?

Mathematics
2 answers:
anastassius [24]4 years ago
3 0
Lets say, I bought 3 cakes in the store and I spent $300, how much does a cake cost?
The equation representing that situation is the following, calling x the cake cost, our unknown factor:
3x = 300
we can solve this equation by dividing all equation by 3:
x = 100
therefore each cake costs $100
tia_tia [17]4 years ago
3 0
I want to buy eight bracelets, I don't know how much each bracelet costs, but the final cost will be $39.67.
The equation would look like this:
8 x <em>c</em> = 39.67
Where <em>c</em> equals cost.
To find the answer I would do the following:
8 x <em>c </em>= 39.67
<em>c</em> = 39.67 / 8
<em>c</em> ≈ 4.95
Each bracelet costs about $4.95.
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find the amount of an annuity that consist of 26 monthly payments of $100 each into an account that pays 4% interest per year, c
matrenka [14]
100 * ( 4 / 100 ) * ( 26 / 12 ) = 4 * ( 26 / 12 ) = 26 / 3 = $ 8.66 ;
3 0
3 years ago
2x^2+17x+29 divide x+6 what is the quotient? what is the remainder?
Misha Larkins [42]
Long Division can be a pain, but I'm going to help you. The answer is 2x+5 and the remainder is -1/x+6.
8 0
3 years ago
What is the completely factored form of f(x)=x3−7x2+2x+4?
expeople1 [14]

Answer:

Factored form is

f(x)= (x-1)(x-3+√(-5))(x-3-√(-5))


Step-by-step explanation:

Given that  

f(x)=x3−7x2+2x+4

To solve for x  we factorise the right side

f(x)=x3−7x2+2x+4

Let us substitute x for various values to check whether remainder is zero.

i.e. f(1) = 1-7+2+4  =0

     

Hence x-1 is a factor

Do synthetic division to find the quotient

1       1    -7    2    4

              1     -6   -4

       ----------------------

        1    -6    -4   0

i.e. we get remainder 0 and quotient as

x^2-6x-4

Use completion of squares method to solve this

x^2-6x-4

= (x-3)^2+5=0

x-3= ±√(-5)

Or x=1,3+√(-5,)  3-√(-5,)

Are the roots

Factored form is

f(x)= (x-1)(x-3+√(-5))(x-3-√(-5))


3 0
3 years ago
(2a-b)^2 ÷ 4a^3−ab^2 /3 <br><br> please solve this intermediately I need to know it!!!
zepelin [54]

Bretbgggggggggvtdn

Rghggrsswssffffffffggghhnhgfddeesghhhehthethethethefwdaddygnfymf

8 0
3 years ago
Read 2 more answers
Andrea works as a cashier in a music store. A customer wants to buy a CD that is
cestrela7 [59]

Answer:

$11.90

Step-by-step explanation:

first you change the percent to a decimal by moving the decimal two places and then multiply.

you multiply .85 and 14.00= 11.90

4 0
3 years ago
Read 2 more answers
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