All categories

3 years ago

3n - 5 = -8 what is the value of n?

Mathematics

2 answers:

lubasha [3.4K]3 years ago

8 0

The value of n is 1 :)

julia-pushkina [17]3 years ago

3 0

3n - 5 = -8

n = -1 because if you…

move the constant to the right-hand side and change its sign —>

3n = -8 + 5

calculate -8 + 5 which would be —>

-3

equation now —>

3n = -3

divide both sides —>

3n/3 = 1
-3/3 = -1

final answer —>

n = -1

Have a great day! hope this helps!

You might be interested in

Evan’s family drove to a theme park for vacation.

zhuklara [117]

Answer:

They drove 150 miles on the third day

They drove 50 miles per hour so if you multiply that by 3 (since they drove 3 hours on the third day) you would get 150 miles.

5 0

3 years ago

Which property of equality is represented? If 4x = 16, then 16 = 4x.

Komok [63]

Answer:

Commutative Property of Multiplication.

7 0

4 years ago

Read 2 more answers

Sonia makes a wooden frame around a square picture. The frame is made of four congruent trapezoids. The shorter base is 9 in, th

sp2606 [1]

answer

congruent trapezoide for one

0,5(9+12)×1,5=15,75

area of picture frame =4×15,75=63

8 0

2 years ago

Rita is selecting a sandwich at the deli. The deli has four types of meat, three types of cheese and two types of bread. A delux

zalisa [80]

Answer:

24 possible dishes

Step-by-step explanation:

Given

Total

$Meat = 4$

$Cheese = 3$

$Bread = 2$

Selection

$Meat = 1$

$Cheese =2$

$Bread = 1$

Required

Determine the number of possible combo

Rita wants to select 1 of 4 meat types,

So, the number of selections is: $^4C_1$

Rita wants to select 2 of 3 cheese types,

So, the number of selections is: $^3C_2$

Rita wants to select 1 of 2 cheese types,

So, the number of selections is: $^2C_1$

The total number of selections is:

$Total = ^4C_1 * ^3C_2 * ^2C_1$

Using

$^nC_r = \frac{n!}{(n-r)!r!}$

We have:

$Total = \frac{4!}{(4-1)!1!} * \frac{3!}{(3-2)!2!} * \frac{2!}{(2-1)!1!}$

$Total = \frac{4!}{3!1!} * \frac{3!}{1!2!} * \frac{2!}{(1!1!}$

$Total = \frac{4*3!}{3!*1} * \frac{3*2!}{1*2!} * \frac{2*1}{1*1}$

$Total = 4* 3 * 2$

$Total = 24$

<em>Hence, there are 24 possible dishes</em>

4 0

3 years ago

Read 2 more answers

MOWING GRASS Rupesh is mowing grass to save money for a vacation. He charges $12 per yard. Rupesh already has $40 and wants to h

lbvjy [14]

$148 is how much you want. You already have $40.
$148 - $40 = $108. You need to make $108 more.
You get $12 per yard.
$108 ÷ $12 = 9. So, you will need to do 9 more yards to get your goal of $148.

Final Answer: 9 yards.

8 0

3 years ago