All categories

3 years ago

The size of the hermit crab’s shell depends on

Mathematics

2 answers:

elixir [45]3 years ago

5 0

Answer:

Length of crab in x years = x + 2

Step-by-step explanation:

Since the crab grows 1 inch per year, and it would grow:

1 inch in the 1st year

2 inches in the 2nd year

3 inches in the 3rd year

4 inches in the 4th year

And so on.

However, in order to find the total length, you need to remember that the crab is originally 2-inches long. So the total length after x years would be the number of inches it grew over the years (x) + the length before the growth (2).

Thus, Length of crab in x years = x + 2

steposvetlana [31]3 years ago

5 0

Length of crab in x years = x + 2

You might be interested in

Which of the following is not a factor of x^3 – 3x^2 – 4x + 12?

Slav-nsk [51]

Answer:

c. (x + 3)

Step-by-step explanation:

using factor theorem

if x - 3 is a factor then p(a) = 0

p(a)= x^3 - 3x^2 - 4x + 12

a.(x-3)

p(3) = (3)^3 - 3(3)^2 - 4(3) + 12

= 27 - 27 - 12 + 12

= 0

therefore x-3 is a factor

b.(x + 2)

p(-2) = (-2)^3 - 3(-2)^2 - 4(-2) + 12

= -8 -12 + 8 + 12

,= 0

therefore x + 2 is a factor

c.(x + 3)

p(-3) = (-3)^3 - 3(-3)^2 - 4(-3) + 12

= -27 -27 + 12 + 12

= -30

therefore x + 3 is not a factor

d.(x-2)

p(2) = (2)^3 - 3(2)^2 - 4(2) + 12

= 8 -12 - 8 + 12

= 0

therefore x - 2 is a factor

4 0

2 years ago

A crowd of people stood on both sides of the street to view a 4th of July Parade.

Dmitriy789 [7]

Given :

Length of parade , $L = 3\ miles=3\times 5280\ miles = 15840\ miles$ .

Breadth of parade , $B=2\times 15=30\ ft$ .

5 people can fit into a $25\ ft^2$ area.

1 mile = 5280 ft .

To Find :

The size of the crowd.

Solution :

Area of parade ,

$A=15840\times 30\ ft^2\\\\A=475200\ ft^2$

Also , 5 people can fit in $25\ ft^2$ area .

So , number of people fit in A is :

$n = \dfrac{475200\times 5}{25}\\\\n=95040$

Therefore , 95040 can fit in the parade .

Hence , this the required solution .

6 0

2 years ago

What is: 2/3 X 5/6 X 14 =

PSYCHO15rus [73]

<span>sure. (2/3)=.667 and 5/6=.833. when you multiply them it should look like (.667) x (.833) x 14 which equals 7.778. i hope this helps.</span>

4 0

2 years ago

There are 3 boys for every 2 girls in a dance competition. Does it make sense for there to be a total of 9 people in the competi

rjkz [21]

Answer:

Yes

Step-by-step explanation:

3:2 = 5 people

3:1 = 4 people

5+4=9 people

6 0

3 years ago

Read 2 more answers

Last week at a gym, 120 people participated in a biking class. The number of people who ran on a treadmill

KonstantinChe [14]

Answer:

180

Step-by-step explanation:

This basically means that one and a half of the amount of people that took a biking class ran on the treadmill.

There are two ways to solve

1. $\frac{150*120}{100}$

2. $120+\frac{120\\}{2}$

To do the first one:

1. Multiply the values in the numerator

18000/100

2. Divide

180

To do the second one:

1. Divide the fraction

120 + 60

2. Add

180

4 0

2 years ago