3 years ago

What is the solution to 18 = 2(2x + 7)?

Mathematics

2 answers:

NARA [144]3 years ago

7 0

18=2(2x+7)
2*2x=4x
2*7=14
18=4x+14
18-14=4
4=4x
1=x

dusya [7]3 years ago

6 0

Answer:

x= 1 :))

Step-by-step explanation:

You might be interested in

Which pair of ratios is equivalent?

sweet-ann [11.9K]

Answer:

The answer is option A.

Hope this helps.

8 0

3 years ago

Divide 72 rolls into 2 groups so the ratio is 3 to 5

Lelu [443]

3+5=8
72/8=9
3*9=27
5*9=45

5 0

4 years ago

On the first day of spring, an entire field of flowering trees blossoms. The population of locusts consuming these flowers rapid

Elza [17]

Answer:

$L(t)=7600e^{0.2273t}$

Step-by-step explanation:

-The locust population grows by a factor and can therefore be modeled by an exponential function of the form:

$P=P_oe^{rt}$

Where:

$P$ is the population after t days.
$P_o$ is the initial population given as 7600
$r$ is the rate of growth
$t$ is time in days

-Given that the growth is by a factor of 5( equivalent to 500%), the r value will be 5

-The population increases by a factor of 5 every 22 days. therefore at any time instance, t will be divided by 22 to get the effective time for calculations.

Hence, the exponential growth function will be expressed as:

$P=P_oe^{rt},\ \ \ P=L(t)\\\\\therefore L(t)=7600e^{5\frac{t}{22}}\\\\=7600e^{0.2273t}$

7 0

3 years ago

A triangle has three different integer side lengths and a perimeter of 20 units. What is the max length of any one side?

Troyanec [42]

X + x+1 + x + 2 = 20
3x + 3 = 20
3x = 17 but can't start with x = 6 because 6+7+8 > 20,
so have start with 5 + 6 + 7 = 18 are the 3 sides.

3 0

3 years ago

Six times the sum of a number and twelve is forty. Which equation represents this?

luda_lava [24]

Answer:

6n + 12 =40

Step-by-step explanation:

5 0

3 years ago