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3 years ago

Which expression is equivalent to (n+12)×5+7n?

1 answer:

4 0

The answer to this is n+12=12n right so then we do 12nx5= 60n then you add 7n so the answer is 67n
now we need to make somthing = to this so what we can do is

(12x5)+(7)+n

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I don’t know if I get this right so can someone correct it or check it ?

Llana [10]

Answer:

i think thats right

Step-by-step explanation:

6 0

3 years ago

Find the slope of the line that passes through each pair of points (13,-3),(-5,-5)

PIT_PIT [208]

Answer:

$\boxed{\bold{\frac{1}{9} }}$

Explanation:

(13,-3), (-5,-5)

Find The Slope:

$\bold{\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}}$

$\bold{\left(x_1,\:y_1\right)=\left(13,\:-3\right),\:\left(x_2,\:y_2\right)=\left(-5,\:-5\right)}$

$\bold{m=\frac{-5-\left(-3\right)}{-5-13}}$

$\bold{ \ m \ = \ \frac{1}{9} }$

3 0

3 years ago

5y-x=10 solve for y

shusha [124]

$5y-x=10\\\\ 5y=10+x \ |:5 \ Both \ sides \\\\ y=\frac{10}{5}+\frac{x}{5}\\\\ y=2+\frac{x}{5}$

because
$5y-x=5(2+\frac{x}{5})-x=5\cdot 2 +\frac{x}{\not5}\cdot 5 - x= 10+x-x=10$

3 0

3 years ago

4x2 + 4x =- 4 Find the solutions to the Quadratic equation.

VashaNatasha [74]

Answer:

x=-3

Step-by-step explanation:

(4)(2) + 4x = -4

multiply the 4 and 2

8 + 4x = -4

subtract 8 from both sides

4x = -12

divide both sides by 4

x = -3

7 0

3 years ago

Why is the ph of distilled water usually 7? how can you prevent this from happening?

Nimfa-mama [501]

The pH of distilled water is usually LESS THAN 7, because when it contacts air CO2 gas begins dissolving into the water.

3 0

3 years ago