3 years ago

Which verbal expression best represents the algebraic expression 3n-4n ?

Mathematics

1 answer:

Bingel [31]3 years ago

8 0

Answer:

B. four less than three times a number

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3x-y=5 write the linear equation in slope-intercept form given

maxonik [38]

Answer:

y = -3x - 5

Step-by-step explanation:

3x - y = 5

+3x +3x

-1y = 3x + 5

---- ----- -----

-1 -1 -1

y = -3x - 5

6 0

4 years ago

Nineteen less than 6 times a number is the same as 16 more than the number. The equation is The solution is x -7 7.

Crank

Answer:

The number is 7

Step-by-step explanation:

let the said number be x

Nineteeen less than 6 times a number;

6x - 19

equals; 16 more than the number; this is 16 + x

Thus;

6x - 19 = 16 + x

6x-x = 16 + 19

5x = 35

x = 35/5

x = 7

3 0

3 years ago

Find the gradient of the line Joining the points p(-2,6) and Q(3,-2)

Rudiy27

Answer:

$- \frac{8}{5}$

Step-by-step explanation:

$\boxed{gradient = \frac{y1 - y2}{x1 - x2} }$

(x₁, y₁) is the 1st coordinate while (x₂, y₂) is the 2nd coordinate.

Gradient of the line

$= \frac{6 - ( - 2)}{ - 2 - 3}$

$= \frac{6 + 2}{ - 5}$

$= - \frac{8}{5}$

7 0

3 years ago

A water tank is 3/4 full.

guapka [62]

x/.75=x-56/0.4

0.4x=.75x-42

-0.35x=-42

x=120

I set up a proportion in which x=the tank when it is 3/4 full. When the tank is 3/4 full, solving the proportion tells us the x=120 litres. 120/3=40, and 120+40 is 160, showing that a tank completely full would indeed hold 160 litres.

Hope this helps!

3 0

3 years ago

At the beginning of a basketball season, the Panthers won 20 games out of 80 games. At this rate, how many games will they win i

balu736 [363]

They will win 25 games in 100 game season at that rate.Since they win 5 games out of every 20.

The answer is 25

6 0

3 years ago