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3 years ago

Enter the value of P so that the expression 3 (4 + n) is equivalent to 3 (n+p).

Mathematics

1 answer:

Gala2k [10]3 years ago

4 0

Answer:

3 (4+n)=0

3×4+3×n=0

12+3n=0.... equation 1

3 (n+p)

3×n+3×p=0

3n+3p=0........... equation 2

eq 1 multiply 3 eq 2 multiply 3

36+9n=0

9n+9p=0

_ _ =0

_9n is +9n Crush

36+9p=0

p=36÷9

p=4

p is 4 ans

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The president of a certain university receives a salary that is four times the salary of one of the department heads. The total

Viktor [21]

a. The salary of the department head is $105,000.

b. The salary of president is $420,000.

Step-by-step explanation:

Let,

x be the salary of president.

y be the salary of head of department.

According to given statement;

x=4y

a) What is the salary of the department head?

Salaries of two heads of department = $210000

$2y=210000$

Dividing both sides by 2;

$\frac{2y}{2}=\frac{210000}{2}\\y=105000$

The salary of the department head is $105,000.

b) What is the salary of the president of the university?

x=4y

$x=4(105000)\\x=420000$

The salary of president is $420,000.

Keywords: Division, multiplication

Learn more about multiplication at:

#LearnwithBrainly

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gizmo_the_mogwai [7]

Answer:

The equation is true.

Step-by-step explanation:

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Sergio [31]

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Diano4ka-milaya [45]

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