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muminat
3 years ago
5

If the unit sales price is $7 and variable costs are $3, how many units have to be sold to earn a profit of $3,600

Mathematics
1 answer:
Alexeev081 [22]3 years ago
3 0
7 - 3 = 4....so there is a $ 4 profit for every unit sold

4x = 3600
x = 3600/4
x = 900....so 900 units have to be sold to earn a profit of $ 3600
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PLZ HELP!!!
dexar [7]

Solution:

The given equation is:

3^2 x + 7^2= 2 ^x\\\\9 x +49 =2^x

A: Taking , x=1

L H S = 9 × 1  + 49 = 9 + 49= 58

R H S : 2^x=2^1=2

L H S ≠   R H S

B: Taking x=3

L H S = 9 × 3 + 49=27 + 49=76

R HS = 2^x = 2^3 = 8

L H S ≠  R H S

C: Taking x=5

L H S = 9 × 5 + 49

        = 45 + 49

       = 94

R H S:

2^x=2^5=32

L H S ≠ R H S

(D)

when , x= 8

L H S

9 × 8 + 49

= 72 + 49

= 121

R HS:

2^x=2^8 =256

L H S ≠ R H S






8 0
3 years ago
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The square of any negative number is ?
hram777 [196]

Is positive. In fact, the square of any (real) number other than 0 is always positive.

6 0
3 years ago
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(V+5)(-1/9)=6 how do u solve this
Brrunno [24]

Answer:

v= -59

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : (v+5)*(-1/9)-(6)=0

Rearrange:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    (v+5)*(-1/9)-(6)=0

Step by step solution :

STEP

1

:

           1

Simplify   —

           9

Equation at the end of step

1

:

                  1      

 ((v + 5) • (0 -  —)) -  6  = 0

                  9      

STEP

2

:

Equation at the end of step 2

 (-v - 5)    

 ———————— -  6  = 0

    9        

STEP

3

:

Rewriting the whole as an Equivalent Fraction

3.1   Subtracting a whole from a fraction

Rewrite the whole as a fraction using  9  as the denominator :

        6     6 • 9

   6 =  —  =  —————

        1       9  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

STEP

4

:

Pulling out like terms

4.1     Pull out like factors :

  -v - 5  =   -1 • (v + 5)

Adding fractions that have a common denominator :

4.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

(-v-5) - (6 • 9)     -v - 59

————————————————  =  ———————

       9                9  

STEP

5

:

Pulling out like terms :

5.1     Pull out like factors :

  -v - 59  =   -1 • (v + 59)

Equation at the end of step

5

:

 -v - 59

 ———————  = 0

    9  

STEP

6

:

When a fraction equals zero :

6.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 -v-59

 ————— • 9 = 0 • 9

   9  

Now, on the left hand side, the  9  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  -v-59  = 0

Solving a Single Variable Equation:

6.2      Solve  :    -v-59 = 0

Add  59  to both sides of the equation :

                     -v = 59

Multiply both sides of the equation by (-1) :  v = -59

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What is area computer screen with 21
joja [24]
I hope this helps you



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3 0
3 years ago
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SashulF [63]

Answer:

X_{red} = 3, p(red) =\frac{1}{2}

X_{black} = 2, p(red) =\frac{1}{2}

And the cost of play would be 1 with probability 1 for any given game. Then we can find the expected value like this:

E(X) = 3 *\frac{1}{2} +2 \frac{1}{2} -1

And solving we got:

E(X) = 1.50

And then the best answer for this case would be:

$1.50

Step-by-step explanation:

For this case we can calculate the expected value with this formula:

E(X) =\sum_{i=1}^n X_i P(X_i)

We assume that the standard deck is formed just with red and black cards. For this case we have the following info:

X_{red} = 3, p(red) =\frac{1}{2}

X_{black} = 2, p(red) =\frac{1}{2}

And the cost of play would be -1 with probability 1 for any given game. Then we can find the expected value like this:

E(X) = 3 *\frac{1}{2} +2 \frac{1}{2} -1

And solving we got:

E(X) = 1.50

And then the best answer for this case would be:

$1.50

3 0
3 years ago
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