1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sonja [21]
3 years ago
12

Please show work and solve it! 100 points! n(n-7)=0

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
5 0
Step by step. :)


STEP
1
:
Equation at the end of step 1
0 - 7n • (n - 7) = 0
STEP
2
:
Equation at the end of step 2
-7n • (n - 7) = 0
STEP
3
:
Theory - Roots of a product
 3.1    A product of several terms equals zero. 

 When a product of two or more terms equals zero, then at least one of the terms must be zero. 

 We shall now solve each term = 0 separately 

 In other words, we are going to solve as many equations as there are terms in the product 

 Any solution of term = 0 solves product = 0 as well.
Solving a Single Variable Equation:
 3.2      Solve  :    -7n = 0 

 Multiply both sides of the equation by (-1) :  7n = 0


Divide both sides of the equation by 7:
                     n = 0
Solving a Single Variable Equation:
 3.3      Solve  :    n-7 = 0 

 Add  7  to both sides of the equation : 
                      n = 7



This is what i got! if i’m wrong i’m so sorry
but i tried. have a amazing day☺️☺️
You might be interested in
Here are the prices 4 cheese pizza at a certain pizzeria:
nevsk [136]

Answer:

Step-by-step explanation:

20%

8 0
3 years ago
Misty wishes to obtain 85 ounces of a 40% acid solution by combining a 72% acid solution with a 25% acid solution. How much of e
Y_Kistochka [10]

13.15 ounces of 72% acid and 71.85 ounces of 25% acid are needed

<u>Step-by-step explanation:</u>

Total mass of acid required= 85 ounces

Let the mass of 72% acid be 'a'

Let the mass of 25% acid be 'b'

a + b = 85

b = 85-a

85(40/100) = a(72/100) + b(25/100)

85(2/5) = a(72/100) +(85- a) (25/100)

34 = (72a/100) + (2125/100) - (25a/100)

34 - (2125/100) = (72a + 25a) /100

(3400-2125)/100 = 97a /100

97a = 1275

a =  13.15 ounces

b = 85 - 13.14

b = 71.85 ounces

13.15 ounces of 72% acid and 71.85 ounces of 25% acid are needed

4 0
3 years ago
4. A number m is such that when it is divided by 30, 36, and 45 the remainder is always 7,
Bezzdna [24]

Answer:

187

Step-by-step explanation:

A number m is such that when it is divided by 30, 36 and 45 the remainder is always 7.

We should first find the LCM of 30, 36 and 45

We get that the LCM of the three numbers is 280 (working attached).

So now;

\frac{180}{30} = 6

\frac{180}{36} = 5

\frac{180}{45} = 4

But we need a number that leaves a remainder of 7 so we add 7 to 180 to get; 180 + 7 = 187.

5 0
4 years ago
The commission on the sale of a property is 5.5% of the value. What is the commission on the sale of a property that has the sam
Kruka [31]

Answer: $1179.75

Step-by-step explanation:

Percentage of commission = 5.5%

Value of property = $21,450

Commission = Percentage commission × Value of property

= 5.5% × $21,450

= 5.5/100 × $21,450

= 0.055 × $21,450

= $1179.75

The commission is $1179.75

8 0
3 years ago
Perform the indicated operation <br> (-10) ÷ (-20)
sergey [27]
Remember that dividing a negative number by a negative number will result in a positive quotient:

-10 \div -20 = 0.5

The answer is 0.5.
5 0
3 years ago
Other questions:
  • Matt had 3.5 pounds of grapes. Jason had 2.25 pounds of tomatoes.
    11·1 answer
  • Which of the following has a translation rule of Move 3 Right and Down 4?
    6·2 answers
  • Imagine one of the dice to be blue and the other one gold, and let an outcome consist of the pair of faces that appear. How many
    10·1 answer
  • Y is 5 when x is 8. Find y when x is 28
    11·1 answer
  • What is the domain of this function?
    11·1 answer
  • Beth is making fruit salad. She adds 4 grapes for every 2 strawberries. If she uses 20 strawberries, how many grapes will she us
    14·1 answer
  • The probability that Fred's bus is late on any day is 0.09.
    6·1 answer
  • Help I will be marking brainliest!!!<br><br> A. 241 ft<br> B. 358 ft<br> C. 258 ft<br> D. 341 ft
    9·1 answer
  • 1,100,300 in written in words please!
    12·1 answer
  • (05.05 LC) A right rectangular prism is shown. What shape best describes the cross section cut perpendicular to the base of a ri
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!