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3 years ago

What is the answer to 5x-1=x+15

2 answers:

3 0

-- Add 1 to each side.

-- Then subtract 'x' from each side.

-- Finally, divide each side by 4, and the answer will jump out at you.

Ilya [14]3 years ago

3 0

$5x - 1 = x + 15$
subtract x to both sides
$4x - 1 = 15$
add 1 to both sides
$4x = 16$
divide 4 to both sides
$x = 4$

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Country A has a growth rate of 4.9% per year. The population is currently 4 comma 151,000, and the land area of Country A is 1

kvv77 [185]

Answer:

There will be one person on 1 square yard of land after 1,892,147.588 years.

Step-by-step explanation:

Continuous exponential growth formula:

$P(t)=Pe^{rt}$

P(t)= Population after t years.

P= Initial population

r=rate of growth.

t= time in year

Given that,

Growth rate of country A (r)= 4.9% per year=0.049 per year.

Initial population (P)= 151,000.

Land area of country area= 14,000,000,000 square yards.

There will be one person on one square yard of land.

So, there will be 14,000,000,000 person for 14,000,000,000 square yard of land in country A.

P(t)=14,000,000,000 person

$\therefore 14,000,000,000= 151,000 e^{0.049t}$

$\Rightarrow e^{0.049t}=\frac{ 14,000,000,000}{ 151,000}$

Taking ln both sides

$\Rightarrow ln|e^{0.049t}|=ln|\frac{ 14,000,000,000}{ 151,000}|$

$\Rightarrow {0.049t}=ln|\frac{ 14,000,000,000}{ 151,000}|$

$\Rightarrow t}=\frac{ln|\frac{ 14,000,000,000}{ 151,000}|}{0.049}$

$\Rightarrow t}=1,892,147.588$ years

There will be one person for every square yard of land after 1,892,147.588 years.

7 0

3 years ago

Witch expression represents the value of 5 nickels and x dimes

Setler [38]

10x+25 (expressions don't have equal signs)

4 0

4 years ago

Read 2 more answers

Solve for x y=-1/2x=3

ANEK [815]

Answer:

-6

Step-by-step explanation:

x=-6

5 0

3 years ago

- x - x + 11 - 2x = 83 please show step by step!!

m_a_m_a [10]

Answer:

$x=-18$

Step-by-step explanation:

Given

$-x-x+11-2x=83$

Step 1: Combine Like Terms on LHS

$-x-x+11-2x=83\\-2x+11-2x=83\\-4x+11=83$

Step 2: Subtract 11 on both sides

$-4x+11=83\\-4x+11-11=83-11\\-4x=72$

Step 3: Divide both sides by -4 to isolate the x-variable

$-4x=72\\\\\frac{-4x}{-4}=\frac{72}{-4}\\ \\ x=-18$

Final Answer

$x=-18$

7 0

2 years ago

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WILL GIVE BRAINIEST

svlad2 [7]

Answer:

Multiplication (150x4=600 25x4=100%)

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3 years ago

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