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4 years ago

Evaluate the expression 15 - n when n =9

Mathematics

1 answer:

Gnesinka [82]4 years ago

6 0

Answer:

Step-by-step explanation:

Don't let the variable confuse you. Replace n with 9. Then, subtract 9 from 15.

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LESSON 2-1 PRACTICE

julia-pushkina [17]

Answer:

Value of x is -3

Step-by-step explanation:

Given:

5x + 15 = 0

Find:

Value of x

Computation:

5x + 15 = 0

From subtracting 15 from both side (LHS and RHS)

5x + 15 – 15 = 0 – 15

5x = -15

From dividing 5 from both side (LHS and RHS)

5x / 5 = -15 / 5

x = -3

So,

Value of x is -3

6 0

3 years ago

Work out the shaded area

Dennis_Churaev [7]

Answer:

Step-by-step explanation:

Shaded area:

Area of big rectangle - Area of small rectangle

$= 10 \times 12 - (10 - 5) \times (12 - 2)$

Calculate the difference

$= 10 \times 12 - 5 \times 10$

Calculate the product

$= 120 - 50$

Calculate the difference

$= 70 \: {cm}^{2}$

Hope this helps...

Best regards!!

7 0

3 years ago

Identify the inequality that represents the following problem

ValentinkaMS [17]

Answer:

$3n + 2 \geqslant 8$

Step-by-step explanation:

2 more than 3 time mean 3n+2

"is atleast 8" means it can be 8 or more so c. is right answer

5 0

3 years ago

Which of the following is equivalent to 5x - x + 3x = 30? A 8x = 30 o 7x = 30 с 3x + 5= 30 x = 30

lyudmila [28]

Answer:

Step-by-step explanation:

5x -x + 3x =30, first you combine like terms 5x + 3x-x=30

8x-x =30

8-1=7

7x=30

4 0

3 years ago

Read 2 more answers

Is it just me or is this confusing???

user100 [1]

Yup it is definently confsing

6 0

3 years ago

Read 2 more answers