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2 years ago

How do I get it to equal zero

Mathematics

1 answer:

Mashutka [201]2 years ago

7 0

Answer:

multiply it by zero

Step-by-step explanation:

zero times anything is zero

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Each day a small business owner sells 200 pizza slices for $1.50 per slice and 85 sandwiches at $3.50 each. Business exspenses c

notsponge [240]

Answer:

The owner's profit for a ten-day period is $4675

Step-by-step explanation:

Each day a small business owner sells 200 pizza slices for $1.50 per slice and 85 sandwiches at $3.50 each.

Let's find the revenue.

Revenue = 200($1.50) + 85($3.50)

= $300 + $297.50

Revenue per day = $597.50

Revenue for 10 days = 10($597.50) = $5975

Business expenses per day = $130

Business expenses for 10 days = 10($130) = $1300

Now let's find the profit.

Profit for 10 days = Revenue - Expense

= $5975 - $1300

= $4675

So the owner's profit for a ten-day period is $4675

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3 years ago

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jeka57 [31]

Ok but For what game.

5 0

2 years ago

Read 2 more answers

Reverse the two digits of my age, divide by three, add 20, and the result is my age. How many years old am I

lapo4ka [179]

Answer:

48 years old.

Step-by-step explanation:

Let the age be xy or 10x + y.

Reverse the two digits of my age, divide by three, add 20, and the result is my age, convert this to equation:

(10y + x)/3 + 20 = 10x + y
(10y + x)/3 = 10x + y - 20
10y + x = 3(10x + y - 20)
10y + x = 30x + 3y - 60
30x - x + 3y - 10y = 60
29x - 7y = 60

We should consider both x and y are between 1 and 9 since both the age and its reverse are 2-digit numbers.

Possible options for x are:

29x ≥ 7*1 + 60 = 67 ⇒ x > 2, at minimum value of y,

and

29x ≤ 7*9 + 60 = 123 ⇒ x < 5, at maximum value of y.

So x can be 3 or 4.

29*3 - 7y = 60
87 - 7y = 60
7y = 27
y = 27/7, discarded as fraction.

29*4 - 7y = 60
116 - 7y = 60
7y = 56
y = 8

So the age is 48.

6 0

1 year ago

Simplify the rational expression. state any restrictions on the variable. n^4-11n^2+30/n^4-7n^2+10

Andrej [43]

<span>For this case we have the following expression:
</span> $\frac{n ^ 4-11n ^ 2 + 30}{ n ^ 4-7n ^ 2 + 10} 

$
<span> We are going to make the following change of variables:
</span> $x = n ^ 2
$
<span>Rewriting the expression we have:
</span> $\frac{(x ^ 2-11x + 30)}{(x ^ 2-7x + 10)} 

$
<span>Factoring the expression we have:
</span> $\frac{(x-5) (x-6)}{(x-5) (x-6)} 
$
<span>Canceling similar terms we have:
</span> $\frac{x-6}{x-2} 
$
<span>Returning the change we have:
</span> $\frac{n ^ 2-6}{n ^ 2-2} 

$
<span> The resctrictions of the function are those that make the denominator equal to zero.
We have then:
</span> $n ^ 2-2 = 0

n = +/- \sqrt{2} 
$
<span> Answer:
The simplified expression is:
</span> $\frac{n ^ 2-6}{n ^ 2-2}$
<span>The restrictions are:
</span> $n = \sqrt{2} 
$
$n = - \sqrt{2}$

7 0

2 years ago

What is the unit rate of -4y = 18x

Wittaler [7]

Answer:

Step-by-step explanation:

3 0

3 years ago