All categories

3 years ago

Find the value of x (LAST QUESTION)

Mathematics

2 answers:

astraxan [27]3 years ago

6 0

Answer:

9. x= 9

10. x= 9

Step-by-step explanation:

9. 13x+12= 129

13x=129-12

x=117/13=9

10.180-(7x-10)= 12x+19

180-7x+10=12x+19

190-7x=12x+19

190=19x+19

190= 19(x+1)

190/ 19=x+1

10=x+1

9=x

nika2105 [10]3 years ago

4 0

Answer:

9. 13x+12 = 129

=> x=117/13 = 9

10.7x-10+(12x+19)= 180

19x+9= 180

x= 171/19

= 9

You might be interested in

The product of w and 3

DaniilM [7]

Answer:

w x 3 or w(3) or even w3

Step-by-step explanation:

I just know, trust me!

6 0

2 years ago

Read 2 more answers

Which term defines a frequent change in a person's emotional state?

soldi70 [24.7K]

Mood swing is the answer

3 0

2 years ago

Does anybody know this

Dmitrij [34]

Step-by-step explanation:

The equation used to determine the amount of radioactive material left is

$A = A_0(2)^{-t/HL}$

We are have the following given quantities:

t = 30 seconds

$A_0$ = 50 grams

HL = 6 seconds

Plugging these into our equation we get

$A = (50\:\text{grams})(2)^{-(30s/6s)}$

$\:\:\:\:= (50\:\text{grams})(0.03125)$

$\:\:\:\:= 1.56\:\text{grams}$

6 0

2 years ago

How many quarts are in 65 liters

Alenkasestr [34]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

masya89 [10]

Answer:

182

Step-by-step explanation:

x-y =30

first we need to replace y woth the value given in the question.

x - 152 = 30

x = 30 + 152

x = 182

6 0

2 years ago

￼Find the value of x (LAST QUESTION)

Find the value of x (LAST QUESTION)