All categories

4 years ago

Solve -3x + 12 = x – 4 Show your work

Mathematics

2 answers:

fiasKO [112]4 years ago

7 0

X=8
-3x+12=x-4
The answer is x=8

jeka944 years ago

3 0

Answer:

Step-by-step explanation:

-3x +12 =x-4

+3x

12 = 4x -4

16 = 4x

Divide by 4

4 = x

You might be interested in

A bacteria colony increases in size at a rate of 4.0581e1.6t bacteria per hour. If the initial population is 36 bacteria, find t

Harrizon [31]

Answer:

1560

Step-by-step explanation:

The rate of Increase of the population (P) of the bacteria is given as:

$\frac{dP}{dt} =4.058e^{1.6t}$

$dP =4.058e^{1.6t}}dt\\Taking\: Integrals\\\int dP =4.058 \int e^{1.6t}dt\\P(t)=\frac{4.058}{1.6} (e^{1.6t} +K)\\P(t)=2.53625 (e^{1.6t} +K)$

Where k is a constant of Integration.

At t=0, P(t)=36

$36=2.53625 (e^{1.6*0} +K)\\36=2.53625 (e^{0} +K)\\36=2.53625 (1 +K)\\36=2.53625 +2.53625K\\K=13.19$

Therefore:

$P(t)=2.53625 (e^{1.6t} +13.19)\\At \: t=4\\P(4)=2.53625 (e^{1.6*4} +13.19)\\=1559.88\\P(4)=1560$

3 0

3 years ago

33. A competition question requests students to form a three-digit number.

aniked [119]

Answer:

532

Step-by-step explanation:

532 = 2·2·7·19

There are 24 possible 3-digit numbers from the set {2, 3, 5, 7}. Of those, 6 have four factors: 372, 375, 532, 572, 732, 735.

The sums of factors of these numbers are ...

38, 18, 30, 28, 68, 22

The number of interest is 532.

7 0

3 years ago

Lee has a bag with 500 quarters. Some are the older eagle quarters, and others are the

Kipish [7]

Answer:

i dunno try 400?

Step-by-step explanation:i hope this works=p

7 0

3 years ago

What are the slope and y-intercept for the graph of y-4x= -2

RUDIKE [14]

Answer:

The slope is 4 and the y-intercept is (0,-2)

7 0

3 years ago

Use the formula an = d (n − 1) + aj to write a formula for the arithmetic sequence below.

xenn [34]

Answer:

$a_{n}$ = 4n - 2

Step-by-step explanation:

There is a common difference d between consecutive terms in the sequence, that is

6 - 2 = 10 - 6 = 14 - 10 = 18 - 14 = 4

This indicates the sequence is arithmetic with n th term

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 2 and d = 4 , thus

$a_{n}$ = 2 + 4(n - 1) = 2 + 4n - 4 = 4n - 2

3 0

3 years ago