All categories

3 years ago

Use the replacement set {3, 4, 9} to find the solution of the equation below. 3n−18=9

Mathematics

1 answer:

Mrac [35]3 years ago

5 0

Answer:

$n=9$

Step-by-step explanation:

$3n-18=9$

$3n+18=$ +18

$3n=27$

$3(9)=27$

$n=9$

You might be interested in

PLEASE HELP

jeka57 [31]

Answer:

x=3.5

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

The length of the sides DEF are 12,16,and 20. Find the perimeter of the triangle formed by connection the midpoints of the sides

Mekhanik [1.2K]

Answer:

24 units

Step-by-step explanation:

According to the midsegment theorem, the length of each side of the formed triangle is the half the parallel side of DEF.

<u>So the perimeter is:</u>

P = 1/2(12 + 16 + 20) = 24

6 0

2 years ago

write 2 equivalent expressions for each and find the total price the price of a belt is $30 the belt is makeup 60%

mafiozo [28]

I think 80 percent… hope this helps

8 0

3 years ago

PLEASE HELP ASAP! Question 12. Thank you

a_sh-v [17]

Answer:

Step-by-step explanation:

In the first column, put days at the top and pounds at the bottom.

So Day 1 = 75 pounds, Day 2=150 pounds, Day 3 = 225 pounds, etc..

8 0

3 years ago

I only need help with number 7

Reil [10]

a,c,d are all correct

3 0

3 years ago