All categories

3 years ago

Solve for x: 81^ x-4=9^3xShow all work for brainliest

Mathematics

2 answers:

zalisa [80]3 years ago

7 0

Answer:

X=-8

Step-by-step explanation:

81^(x-4)=9^3x

(9^2)^(x-4)=9^3x

9^(2x-8)=9^3x

Same base socompare both sides

So 2x-8=3x

2x-3x=8

-x=8

X=-8

So the value of X is -8

guajiro [1.7K]3 years ago

5 0

Answer:

Solve for x by simplifying both sides of the equation, then isolating the variable.x≈−0.00413995,1.6090059

Step-by-step explanation:

You might be interested in

3. 18 is 40% of what number?

Mariulka [41]

#Lets just write x as the nunber you asked

x × 40/100 = 18

x = 18 : 40/100

x = 18 × 100/40

y = 1800/40

y = 45

<h3>Answer : 45</h3>

8 0

3 years ago

Read 2 more answers

Square root 5 is closest to what real number?

gladu [14]

The square root of 5 is 2.23 so it would be closer to 2

7 0

3 years ago

What is the length of the segment whose endpoints are A(-4, 3) and B (10, 6)?

nlexa [21]

Apply Pythagoras:

length = sqrt( (10--4)² + (6-3)² ) = sqrt(205)

7 0

3 years ago

Read 2 more answers

ava bought 6 packages of tulip bulbs and 12 bags of dafodill bulbs for a total of $198 grace spent $254 buying 14 packages of tu

sasho [114]

Answer:

Answer:

Step-by-step explanation:

Let x represent the cost of one package of tulip bulbs.

Let y represent the cost of one bag of daffodil bulbs.

Ava bought 6 packages of tulip bulbs and 12 bags of daffodil bulbs for a total of $198. This means that

6x + 12y = 198- - - - - - - - - - - - -1

Grace spent $254 buying 14 packages of tulip bulbs and 12 bags of daffodil bulbs. This means that

14x + 12y = 254- - - - - - - - - - - - 2

Subtracting equation 2 from equation 1, it becomes

- 8x = - 56

x = - 56/-8

x = 7

Substituting x = 7 into equation 1, it becomes

6 × 7 + 12y = 198

42 + 12y = 198

12y = 198 - 42

12y = 156

y = 156/12

y = 13

answers left

Answers are unlimited right now

Unlock all verified answers

Grow with a massive community of home learners

Ask your own homework questions

+98

douwdek0 and 98 others just joined Brainly

JOIN FOR FREE

Click to let others know, how helpful is it

0.0

0 votes

THANKS

Comments Report

Read more on Brainly.com - brainly.com/question/15268568#readmore

Step-by-step explanation:

Answer:

Step-by-step explanation:

Let x represent the cost of one package of tulip bulbs.

Let y represent the cost of one bag of daffodil bulbs.

Ava bought 6 packages of tulip bulbs and 12 bags of daffodil bulbs for a total of $198. This means that

6x + 12y = 198- - - - - - - - - - - - -1

Grace spent $254 buying 14 packages of tulip bulbs and 12 bags of daffodil bulbs. This means that

14x + 12y = 254- - - - - - - - - - - - 2

Subtracting equation 2 from equation 1, it becomes

- 8x = - 56

x = - 56/-8

x = 7

Substituting x = 7 into equation 1, it becomes

6 × 7 + 12y = 198

42 + 12y = 198

12y = 198 - 42

12y = 156

y = 156/12

y = 13

answers left

Answers are unlimited right now

Unlock all verified answers

Grow with a massive community of home learners

Ask your own homework questions

+98

douwdek0 and 98 others just joined Brainly

JOIN FOR FREE

Click to let others know, how helpful is it

0.0

0 votes

THANKS

Comments Report

Read more on Brainly.com - brainly.com/question/15268568#readmore

8 0

3 years ago

In the United States, a person eats more than 40,000 pounds of bread in a lifetime if she or he lives to be 80 years old. Does t

Shalnov [3]

Look at some shorter periods of time to decide whether their reasonable. Do that by simplifying the fraction. . . . . 40,000 pounds / 80 years = 4,000 pounds / 8 years = 2,000 pounds (1 ton) / 4 years = 1,000 pounds / 2 years (have you decided yet ? Well, simplify it some more) 1,000 pounds / 2 years = 500 pounds per year = almost 1 and 1/2 pounds of bread every day of your life. NOW what do you think ? Make sense ?

8 0

3 years ago