2 years ago

What is 20-6n=-2(n+6)?

Mathematics

1 answer:

blsea [12.9K]2 years ago

7 0

20n - 6n = -2(n + 6)

20 - 6n =-2n -12

6n + 2 n = -20 -12

8n = 32

n = 32 : 8

n = 8

You might be interested in

Help i'll mark youuuuuuuuuuuuuu

almond37 [142]

Answer:

A. 525 feet

Step-by-step explanation:

If every hour their altitude increased by 135 then their would be an increase of 675 (135 × 5) after 5 hours. To find their altitude 5 hours earlier then you would subtract 675 from their current altitude. 1,200-675=525 feet

5 0

1 year ago

Find all trigonometric functions of an angle θ in the third quadrant for which cos θ =(-5)/6

Tanzania [10]

Answer:

Step-by-step explanation:

its 69 now answer ur phone tyvm

3 0

2 years ago

Adina read 60 out of 100 pages in a comic book.Write the fraction of the pages she read in simplest form

Ad libitum [116K]

Answer:

3/5 is 60/100 in it's simplest form.

Step-by-step explanation:

60 divided by 20 is 3 and 100 divided by 20 is 5.

So 3/5

8 0

2 years ago

One factor of 7x2 + 33x – 10 is

stiv31 [10]

$7x^{2} +33x-10=0$

$\implies 7x^{2} +35x-2x-10=0\\\implies7x(x+5)-2(x+5)=0\\\implies (7x-2)(x+5)=0$

$7x - 2 = 0\\\implies \boxed{\bold{x = \frac{2}{7} }}$

$x+5=0\\\implies \boxed{\bold{x=-5}}$

6 0

2 years ago

a store is having a sale on walnuts and chocolate chips. for 3 pounds of walnuts and 5 pounds of chocolate chips, the total cost

Step2247 [10]

Answer:

Walnuts - $1.25, chocolate chips - $3.25

Step-by-step explanation:

Let walnuts = x, chocolate chips = y

Set a system and solve:

3x + 5y = 20
6x + 2y = 14

Double the first equation and subtract the second one from it:

6x + 10y - 6x - 2y = 40 - 14
8y = 26
y = 26/8
y = 3.25

Find the value of x:

6x + 3.25*2 = 14
6x = 14 - 6.5
6x = 7.5
x = 7.5/6
x = 1.25

7 0

1 year ago