1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denis-greek [22]
2 years ago
10

If xy + 12 = 6x + 7, find y if x =5.

Mathematics
2 answers:
harina [27]2 years ago
6 0

Answer:

y=25

Step-by-step explanation:

Igoryamba2 years ago
4 0

Answer: look at the picture

Step-by-step explanation: Hope this help :D

You might be interested in
Can you help with these two questions?
Lady bird [3.3K]

1) 155.91 grams would be left after 10 years

2) The population would be 376,478 in 2040

Step-by-step explanation:

The form of the exponential function is y=a(b)^{x} , where

  • a is the initial amount (y at x = 0)
  • b is the growth/decay factor
  • b = 1 + r, where r is the rate of growth
  • b = 1 - r, where r is the rate of decay

1)

Scientists are studying a 500 grams sample of a radioactive element, which has an annual decay rate of 11%

∵ The initial amount is 500 grams

∴ a = 500

∵ The annual decay rate is 11%

∴ r = 11% = 11 ÷ 100 = 0.11

∵ b = 1 - r ⇒ decay

∴ b = 1 - 0.11 = 0.89

- We need to find how many grams of the sample would be left

  after 10 years

∴ x = 10

- Substitute all of these values in the form of the exponential function

∵ y=500(0.89)^{10}

∴ y = 155.9085996

- Round it to 2 decimal places

∴ y = 155.91

155.91 grams would be left after 10 years

2)

In 2000, the population of an Ohio town was 140,212. The population is expected to grow at a rate of 2.5% each year

∵ The population of an Ohio town was 140,212

∴ a = 140.212

∵ The population is expected to grow at a rate of 2.5% each year

∴ r = 2.5% = 2.5 ÷ 100 = 0.025

∵ b = 1 + r ⇒ growth

∴ b = 1 + 0.025 = 1.025

- We need to find the population in 2040

∵ The number of years is 2040 - 2000 = 40 years

∴ x = 40

- Substitute all of these values in the form of the exponential function

∵ y=140212(1.025)^{40}

∴ y = 376478.1709

- Round it to the nearest whole number

∴ y = 376,478

The population would be 376,478 in 2040

Learn more:

You can learn more about the functions in brainly.com/question/11921476

#LearnwithBrainly

6 0
3 years ago
Scoateti factori de sub radical, apoi calculati:<br><br> v3 + 2v27 - v75
Temka [501]
I’m not sure if your asking help to factor the equation. Here is the answer to the equation that I factored. -v^3(v^72-2v^24 + 1) Hope that helps you.
5 0
3 years ago
How do you do long divisions for 2 divided by 3339
JulijaS [17]

Answer:

3339/2=1669.5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What items did she buy
ipn [44]

Answer:

Cap, purse, and dress

Step-by-step explanation:

235+490+95= 820

Hope that helps :D

<u><em>-Jazz</em></u>

4 0
2 years ago
Simplify.<br> 2(m + 11)<br> 0 24 m<br> O 2 m+ 22<br> O 2 m+ 11<br> O 22 m
krek1111 [17]

Answer:

2m + 22

Step-by-step explanation:

Use the distributive property.

2(m + 11)

2 x m = 2m

2 x 11 = 22

Therefore, 2m + 22

3 0
3 years ago
Other questions:
  • Monica has already run 10 miles on her own, and she expects to run 6 miles during each track practice. How many track practices
    12·1 answer
  • Fifteen more than twice the hours Carla worked last week is the same as three times the hours she worked this week decreased by
    14·1 answer
  • Convert 43.9 grams to centigrams.
    9·2 answers
  • If a &lt; b where on the line will a appear
    6·1 answer
  • 4. If two straight lines intersect and one angle is 30°, what are the other three angles?
    15·2 answers
  • Item 2 In a box-and-whisker plot, what fraction of the data is greater than the first quartile? Enter the fraction in simplified
    11·1 answer
  • The probability that Clara wins a raffle prize is 25% find the probability that she doesn’t win a prize
    9·1 answer
  • Washington Middle School is hosting a pancake breakfast fundraiser to raise money for a new outdoor field area. They will be org
    13·2 answers
  • Who knows all the answers
    6·1 answer
  • Hitung nilai x bagi persamaan <br>Calculate the value of x for the equation ​
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!