In a pet store the number of fish is 120 more than three times the number of reptiles. If the pet store has 210 fish, how many reptiles does it have? Write a two step equation to model the scenario. Then solve the question.

Answer:

6.5 x 10∧6 is the answer.

Step-by-step explanation:

In calculations involving more than one arithmetic operation, the order of operations must be followed. The order of operations is PEMDAS: parentheses, exponents, multiplication and division, and addition and subtraction.

In calculations involving more than one arithmetic operation, the order of operations must be followed. The order of operations is PEMDAS, which stands for parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

In addition to this, the operations within the parentheses should be ideally performed first. it must be then followed by exponents, then multiplication and division, and finally addition and subtraction.

https://brainly.com/question/15840745

#SPJ12

The solution of the mathmatical exression by combining like terms,

⇒ - 4x + 4

Given that,

An expression to simplify,

⇒ 2x - 4 - 6x + 8

Now, simplify the mathmatical exression by combining like terms,

⇒ 2x - 4 - 6x + 8

Combine like terms,

⇒ 2x - 6x - 4 + 8

⇒ - 4x + 4

Therefore, the solution of expression is,

⇒ - 4x + 4

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ6

you don't list the options but it should look something like this:

68=2L+2(9)

Answer: 8

Step-by-step explanation:

If x represents the width of a rectangle and if its length is twice its width then rectangle is 2x long.

The area of Rectangle is length times of width.

Given that x represents the width of a rectangle.

Length is twice its width

Length=2width

Length=2x

Length is nothing but how long the rectangle.

As the width of rectangle is x and length is 2x.

The area of rectangle is length times of width

Area of rectangle=Length×Width

=2x×x

=2x²

Hence,  x represents the width of a rectangle and if its length is twice its width then rectangle is 2x long.

To learn more on Rectangles click:

https://brainly.com/question/20693059

#SPJ5

Plane X in this scenario represents a mathematical concept in statistics. It illustrates the mean number of unoccupied seats from a sample of 225 flights. Therefore, it could also be referred to as 'the mean plane' or 'the plane of unoccupied seats'.

In this context, plane X represents a mathematical term commonly used in statistical analysis. It is a hypothetical plane used to denote a statistical value, in this case, the mean number of unoccupied seats from a sample of 225 flights.

So, another name for plane X could be 'the mean plane' or 'the plane of unoccupied seats' to specifically denote the statistical property it represents in this problem. Remember, this is not a physical plane but a concept employed in statistics to help comprehend and visualize data.

https://brainly.com/question/35504488

#SPJ2

The question does not provide specific graphs to choose from for the company's sales performance. Nonetheless, a correct graph would show a point at 160 units for the last quarter of the year.

Unfortunately, the question as presented does not include any graphs to choose from. Ideally, the correct graph would have the last quarter of the year on the x-axis and the number of units sold on the y-axis. It would display a single point at 160 units for the last quarter. However, without specific graphs to choose from, a more detailed answer cannot be provided.

https://brainly.com/question/28418462

#SPJ2

The graph which represents the company's sales performance is graph B.

Which of the following graphs represents the company's sales performance?

The last quarter of the year begins October 1st and ends December 31st.

Total units sold by the company in the last quarter of the year = 160 units

Graph 1:

October = 40 units

November = 60 units

December = 40 units

Total = 140 units

Graph 2:

October = 40 units

November = 65 units

December = 55 units

Total = 160 units

Graph 3:

October = 40 units

November = 50 units

December = 50 units

Total = 140 units

Graph 4:

October = 40 units

November = 60 units

December = 50 units

Total = 150 units

Therefore, last quarter of the year in graph B represents the company's sales.

Answer:

true

Step-by-step explanation:

The optimal pH for Salivary Amylase is 6.9, which supports its maximum activity in the slightly acidic environment of the mouth before the food enters the stomach.

The optimal pH for the enzyme Salivary Amylase is 6.9. This optimal pH allows the enzyme to exhibit its maximum catalytic activity. Enzyme activity typically increases with pH up to their optimal point and then decreases with further deviation from this optimum. As enzymes are affected by the environment they are in, Salivary Amylase, which is present in the mouth, functions best at a slightly acidic pH of 6.9, before the food moves to the more acidic environment of the stomach.

The graph shows the activity of different enzymes at different pH levels. To determine the optimal pH for Salivary Amylase, we need to look for the pH value at which the activity is highest for this specific enzyme. From the graph, we can see that the enzyme's activity is highest at pH 7-7.5, which corresponds to its optimal pH. This indicates that Salivary Amylase works most efficiently at a slightly acidic pH.

The optimal pH for the enzyme Salivary Amylase is around 6.9. It breaks down cooked starch into maltose in the mouth, but its activity is deactivated in the stomach.

The optimal pH for the enzyme Salivary Amylase is around 6.9, as indicated in the information provided. Salivary amylase is responsible for breaking down cooked starch into maltose in the mouth. However, its activity is deactivated in the stomach due to the presence of hydrochloric acid (HCl) and the activation of pepsinogen to pepsin.

The steps :

One variable linear equation is an equation that has a variable and the exponent number is one. Can be stated in the form:

[tex]\large{\boxed{\bold{ax=b}}}[/tex]

or

ax + b = c, where a, b, and c are constants, x is a variable

Whereas the two-variable linear equation is a linear equation that has 2 variables and the exponent is one

Can be stated in the form:

 [tex]\large{\boxed{\bold{ax+by=c}}}[/tex]

ax + by = c

x, y = variable

There are 2 general steps to solving a linear equation of one variable:

This can be done by dividing or multiplying by equal numbers

An equation will remain equivalent if both segments are multiplied or divided by the same number

In the equation

2x + 5 = 19

The right steps to complete it according to the images included are:

 2x + 5 -5 = 9-5  ⇒subtraction property of equality

[tex]{\displaystyle  {\frac {2x} {2}}=~\frac{14}{2}[/tex]

⇒division property of equality

the slope-intercept form of the linear equation

brainly.com/question/1945934

a graph of a linear equation

brainly.com/question/1505806

system of linear equations

brainly.com/question/11544167

Keywords: variable, linear equation

Answer:

what she said is write so use it

Step-by-step explanation:

A linear equation not in standard form can be represented as y = mx + b, where 'm' is the slope and 'b' is the y-intercept. An example is y = 0.5x + 3, which graphs as a straight line with a slope of 0.5 and crossing the y-axis at the point (0, 3).

A linear equation that is not in standard form could be written as y = mx + b. This form is known as the slope-intercept form of a linear equation, where m represents the slope of the line and b represents the y-intercept, the point where the line crosses the y-axis. For example, if we choose a slope of 0.5 and a y-intercept of 3, the equation would be y = 0.5x + 3.

The value of x in the equation qx + x = r can be found by combining like terms and then isolating x. The solution is x = r / (q+1).

The equation given is qx + x = r. This equation belongs to the domain of algebra and can be simplified using the principles of solving linear equations. Let's work step-by-step to evaluate the solution to this equation:

That is the solution to the equation.

https://brainly.com/question/32436021

#SPJ2