Question
If 3(c + d) = 5 , what is the value of c + d ?
- 3
- 5
Hint:
There are two methods to solve this question.
The correct answer is:
Method 1:-
We are given the equation
3(c + d) = 5
We will simplify the equation
The value of c + d can be found by dividing both sides of the given equation by 3.
Divide both sides of equation by 3 we get,
c + d =
Therefore option B) is correct.
Method 2:- Putting the value from the given options
Option A is incorrect. If the value of c + d is ,
then 3 × = 5; however, 
is not equal to 5.
Option B is correct. If the value of c + d is ,
then 3 × = 5; however, 5 is equal to 5.
Choice C is incorrect. If the value of c + d is 3,
then 3 × 3 = 5; however, 9 is not equal to 5.
Choice D is incorrect. If the value of c + d is 5, then 3 × 5 = 5; however, 15 is not equal to 5.
Related Questions to study
To make a bakery’s signature chocolate muffins, a baker needs 2.5 ounces of chocolate for each muffin. How many pounds of chocolate are needed to make 48 signature chocolate muffins? (1 pound = 16 ounces)
To make a bakery’s signature chocolate muffins, a baker needs 2.5 ounces of chocolate for each muffin. How many pounds of chocolate are needed to make 48 signature chocolate muffins? (1 pound = 16 ounces)
Some values of the linear function f are shown in the table above. Which of the following defines f ?
Some values of the linear function f are shown in the table above. Which of the following defines f ?
According to the line graph above, between which two consecutive years was there the greatest change in the number of 3‑D movies released?</span
According to the line graph above, between which two consecutive years was there the greatest change in the number of 3‑D movies released?</span
The volume of right circular cylinder A is 22 cubic centimeters. What is the volume, in cubic centimeters, of a right circular cylinder with twice the radius and half the height of cylinder A?
The volume of right circular cylinder A is 22 cubic centimeters. What is the volume, in cubic centimeters, of a right circular cylinder with twice the radius and half the height of cylinder A?
A polling agency recently surveyed 1,000 adults who were selected at random from a large city and asked each of the adults, “Are you satisfied with the quality of air in the city?” Of those surveyed, 78 percent responded that they were satisfied with the quality of air in the city. Based on the results of the survey, which of the following statements must be true?
I. Of all adults in the city, 78 percent are satisfied with the quality of air in the city.
II. If another 1,000 adults selected at random from the city were surveyed, 78 percent of them would report they are satisfied with the quality of air in the city.
III. If 1,000 adults selected at random from a different city were surveyed, 78 percent of them would report they are satisfied with the quality of air in the city.
In mathematics, a survey is a technique for gathering data that involves posing a series of questions to participants to learn more about their attitudes and behaviors. It is the most typical and affordable method of data collection.
For example, Knowledge of consumer purchasing patterns can be used to understand product demand better and increase sales.
Types of Survey Methods
The procedure for gathering data is referred to as the survey method. Different approaches can help you get the extra information or insights you're looking for. Below is a list of some popular techniques.
Online Survey
Paper Survey
Telephonic Survey
Face-to-Face Interview
A polling agency recently surveyed 1,000 adults who were selected at random from a large city and asked each of the adults, “Are you satisfied with the quality of air in the city?” Of those surveyed, 78 percent responded that they were satisfied with the quality of air in the city. Based on the results of the survey, which of the following statements must be true?
I. Of all adults in the city, 78 percent are satisfied with the quality of air in the city.
II. If another 1,000 adults selected at random from the city were surveyed, 78 percent of them would report they are satisfied with the quality of air in the city.
III. If 1,000 adults selected at random from a different city were surveyed, 78 percent of them would report they are satisfied with the quality of air in the city.
In mathematics, a survey is a technique for gathering data that involves posing a series of questions to participants to learn more about their attitudes and behaviors. It is the most typical and affordable method of data collection.
For example, Knowledge of consumer purchasing patterns can be used to understand product demand better and increase sales.
Types of Survey Methods
The procedure for gathering data is referred to as the survey method. Different approaches can help you get the extra information or insights you're looking for. Below is a list of some popular techniques.
Online Survey
Paper Survey
Telephonic Survey
Face-to-Face Interview
The formula above is used to estimate the ideal quantity, Q, of items a store manager needs to order given the demand quantity, d; the setup cost per order, K; and the storage cost per item, h. Which of the following correctly expresses the storage cost per item in terms of the other variables?
Note:
Whenever there is an equation with a square root involved, first we try to remove that square root to get a clear picture of the equation. It is easier to operate on an equation with no square roots or log or inverse.
The formula above is used to estimate the ideal quantity, Q, of items a store manager needs to order given the demand quantity, d; the setup cost per order, K; and the storage cost per item, h. Which of the following correctly expresses the storage cost per item in terms of the other variables?
Note:
Whenever there is an equation with a square root involved, first we try to remove that square root to get a clear picture of the equation. It is easier to operate on an equation with no square roots or log or inverse.
Solve the equation: 8(x – 6) – 5x = 21
Solve the equation: 8(x – 6) – 5x = 21
Show that m = 2 is the root of the equation 9m – 4 = 14.
Show that m = 2 is the root of the equation 9m – 4 = 14.
Solve 
Solve
Find the value of 'x' in the following expressions:(b) 4x+0.9= 10
Find the value of 'x' in the following expressions:(b) 4x+0.9= 10
In the xy-plane, the point (2, 6) lies on the graph of 
where k is a constant. Which of the following points must also lie on the graph?
Note:
Whenever there is an unknown constant in the given equation, we must always try to find the value of that constant first with the help of the given conditions. Another way to solve this question is; observe that the equation can be written as x y = k , that is, the product of the x co-ordinate and y co-ordinate always remains a constant. As the point (2, 6) satisfies it, we get that constant to be 12. So we check for which of the points in the options, the product of x co-ordinate and y co-ordinate is 12.
In the xy-plane, the point (2, 6) lies on the graph of where k is a constant. Which of the following points must also lie on the graph?
Note:
Whenever there is an unknown constant in the given equation, we must always try to find the value of that constant first with the help of the given conditions. Another way to solve this question is; observe that the equation can be written as x y = k , that is, the product of the x co-ordinate and y co-ordinate always remains a constant. As the point (2, 6) satisfies it, we get that constant to be 12. So we check for which of the points in the options, the product of x co-ordinate and y co-ordinate is 12.
, where a is a positive constant and
