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Nat2105 [25]
4 years ago
12

-4(4x-9)=2x I need help

Mathematics
2 answers:
Stolb23 [73]4 years ago
6 0

Step-by-step explanation:

-4(4x-9)=2x

-16x+36= 2x

-16x - 2x = -36

-18x = -36

x = 2

kotykmax [81]4 years ago
5 0

Answer:

x = 2

Step-by-step explanation:

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

-4 (8-9) = 2x

-4 (-1) = 2x

4 = 2x

divide by 2

2 = x

You might be interested in
The population of Henderson City was 3,381,000 in 1994, and is growing at an annual rate 1.8%
liq [111]
<h2>In the year 2000, population will be 3,762,979 approximately. Population will double by the year 2033.</h2>

Step-by-step explanation:

   Given that the population grows every year at the same rate( 1.8% ), we can model the population similar to a compound Interest problem.

   From 1994, every subsequent year the new population is obtained by multiplying the previous years' population by \frac{100+1.8}{100} = \frac{101.8}{100}.

   So, the population in the year t can be given by P(t)=3,381,000\textrm{x}(\frac{101.8}{100})^{(t-1994)}

   Population in the year 2000 = 3,381,000\textrm{x}(\frac{101.8}{100})^{6}=3,762,979.38

Population in year 2000 = 3,762,979

   Let us assume population doubles by year y.

2\textrm{x}(3,381,000)=(3,381,000)\textrm{x}(\frac{101.8}{100})^{(y-1994)}

log_{10}2=(y-1994)log_{10}(\frac{101.8}{100})

y-1994=\frac{log_{10}2}{log_{10}1.018}=38.8537

y≈2033

∴ By 2033, the population doubles.

4 0
3 years ago
One-eight of the sum of a number and three. The algebraic expression for the given quantity is ___
lesya [120]

Answer:

let x=number

(x+3)/8

Step-by-step explanation:

(1/8)*(x+3)

(x+3)/8

3 0
3 years ago
Read 2 more answers
The jewelry center bought a pair of earrings for $250. They are going to mark the price of the earrings up 32.5%. How much will
ELEN [110]

Answer:

$331.25

Step-by-step explanation:

Given:

The jewelry center bought a pair of earrings for $250

They are going to mark the price of the earrings up 32.5%

Question asked:

How much will they sell the earrings for ?

Solution:

Cost price of a pair of earrings =  $250

Mark up value = 32.5% of $250

                        = \frac{32.5}{100}  \times 250\\\frac{8125}{100} = 81.25

Now, we can find selling price of a pair of earring by simply adding the cost price and the mark up value.

Selling price = cost price + mark up value

                     = 250 + 81.25

                     = $331.25

Thus, they sell the earrings for  $331.25

4 0
4 years ago
Factor completely 4n^2-28n+49
svetlana [45]

Answer:

Then it would be 4n squared + 21

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A pole is made to lean against a wall. The base of the pole is placed 7 feet
Brums [2.3K]

Answer:

22.14

Step-by-step explanation:

Using the Pythagorean Theorem:

a^2 + b^2 = c^2

21^2 + 7^2 = c^2

441 + 49 = c^2

490 = c^2 (square root both sides so c^2 becomes c)

c = 22.13594363 (round to hundredths)

c = 22.14

6 0
3 years ago
Read 2 more answers
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