3 years ago

1. Evaluate 7m + 3mn; when m=8 and n=14?

Mathematics

1 answer:

FrozenT [24]3 years ago

3 0

Answer:

1. 392

2. 75

3. $12x^{2} - 5x -2$

Step-by-step explanation:

1. 7×8 + 3×8×14 = 56 + 336 = 392

2. 675 ÷ (6 + 3) = 675 ÷ 9 = 75

3. $12$ $x^{2}$ + $3x -$ $8x - 2$ = $12x^{2} -5x-2$

You might be interested in

How do you solve 2(x+7)+x=20

alexira [117]

2(x+7) + x=20
(2)(x) + (2)(7) + x=20 Distribute
2x+14 + x =20
(2x+x) + (14) =20 Combine Like Terms
3x+14=20
- 14 -14 Subtract 14 from both sides
3x = 6
3x/3 6/3 Divide Both Sides by 3

x = 2

Let me know if you still don't understand

4 0

3 years ago

Two times the sum of a number and 8 subtracted from the number equals 6. What is the number that makes this statement true?

Zanzabum

Answer:

Step-by-step explanation:

let the no. be 'x'

By question,

2x-8=6

or, 2x =6+8

or,2x = 14

or,x = 7

therefore, the no. is 7.

5 0

3 years ago

An employee at a clothing store makes a base salary of $2,800 a month plus 6.75% of the sales that they make. The function E(s)=

Gennadij [26K]

Answer:

3,340$

Step-by-step explanation:

e(8000)=.0675(8000)+2800

e(8000)=540+2800

e(8000)=3340

4 0

3 years ago

12k + 26 factor completely<br><br>pls help

Liula [17]

Answer:

$2\left(6k+13\right)$

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A coach of a baseball team orders hats for the players on his team. Each hat costs $9.95. The shipping charge for the entire ord

maria [59]

Answer:

just do 125.00 -9.95+5.00 and then youll have your answer

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers