A population of bees is decreasing. The population in a particular region this year is 1250. After year 1, it is estimated that the population will be 1000. After 2 years it is estimated that the population will be 800. How many years will it take for the bee to be below 100?

Answer:

-0.2z

Step-by-step explanation:

0.4z-0.6z

-0.2z

Given:

The expression is

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}[/tex]

To find:

The error in Frankie's work.

Solution:

We need to simplify [tex]2\dfrac{1}{3}-1\dfrac{2}{5}[/tex], so

[tex]2\dfrac{1}{3}=2\dfrac{1}{3}\times \dfrac{5}{5}[/tex]

[tex]2\dfrac{1}{3}=2\dfrac{5}{15}[/tex]

and,

[tex]1\dfrac{2}{5}=-1\dfrac{2}{5}\times \dfrac{3}{3}[/tex]

[tex]1\dfrac{2}{5}=-1\dfrac{6}{15}[/tex]

Now,

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=2\dfrac{5}{15}-1\dfrac{6}{15}[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=(2+\dfrac{5}{15})-(1+\dfrac{6}{15})[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=2+\dfrac{5}{15}-1-\dfrac{6}{15}[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=1-\dfrac{1}{15}[/tex]

[tex]2\dfrac{1}{3}-1\dfrac{2}{5}=\dfrac{14}{15}[/tex]

Therefore, there is error in Frankie's last step. In that step, he did not subtract the mixed fraction correctly.

Answer:

equation: y=2.25x+5

a: 13 rides

b:$20.75 for 7 rides

explanation:

a: 35=2.25x+5

first subtract 5 from 5 and 35

30=2.25x

divide each side by 2.25

x= 13 1/3

can only go on 13 rides

b: y=2.25(7)+5

2.25×7=15.75

15.75+5=20.75

$20.75 for 7 rides

Answer:

x = 28

Step-by-step explanation:

From the figure attached,

AC ≅ FH [Given]

BC ≅ GH [Given]

AB ≅ FG [Given]

ΔABC ≅ ΔFGH [By SSS property of congruence]

Since, m∠A + m∠B + m∠C = 180°

50° + 69° + m∠C = 180°

119° + m∠C = 180°

m∠C = 180° - 119°

m∠C = 61°

m∠C = m∠H [Since, ΔABC ≅ ΔFGH]

(2x + 5)° = 61°

2x = 61 - 5

2x = 56

x = 28

Answer:

d

Step-by-step explanation:

becuse the first one would be 4x and the other ones 2x

Answer:

Step-by-step explanation:

B

The set of side lengths (7, 15, 17) represents a right angled triangle

For the given set of side lengths to represent a right angled triangle, the

Pythagoras relation should be satisfied by the side lengths of the triangle.

We can write the given relation as -

h² = b² + p²

Consider the side length pairs as -

(7, 15, 17)

We can arrange the sides as -

17² = 15² + 7²

289 = 225 + 49

289 = 289

The set of side lengths (7, 15, 17) represents a right angled triangle.

To solve more questions on triangles, visit the link-

https://brainly.com/question/2773823

#SPJ2

Answer:

About 21.4%

Step-by-step explanation:

280 - 220 = 60

60 of 280 = ?

Variable x = percentage

60/280 = x/100

Cross multiply

60 × 100 = 280 × x

6000 = 280x

Divide both sides by 280

6000 ÷ 280 = 280x ÷ 280

21.428.... = x

About 21.4%

Check work:

60/280 = 21.4/100

Cross multiply

60 × 100 = 280 × 21.4

6000 = 5992

6000 is close to 5992

It does not equal exactly 6000 because I estimated the percentage to 21.4% instead of 21.428....%

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Since Peter exercises 55 minutes, he stops jogging to do his floor exercises between points C and D, and then continues to finish his workout.

Answer:

16

Step-by-step explanation:

48/3=16

Answer:

336inch

Step-by-step explanation:

1ftt=12in

28ftt=12 ×28

=336in

Answer:

336inch

Hope this helped!

Answer:

the answer being 6.5 or 6 1/2

Step-by-step explanation:

the equation is 26 ÷ 4 = ? and 6.5 × 4 = 26

Answer:

A.more tan one

B.? x 4 = 26 and 26 x 4 = ?

C.1 1/25

Step-by-step explanation:

Answer:

The answer for this as a fraction would be 1260/1

Step-by-step explanation:

63 ÷ 5/100

Answer:

1260/1

Step-by-step explanation:

Answer:

20 minutes

Step-by-step explanation:

Step one:

given

Tantastic charges

reservation fee= $20

charges per minute= $1

let the number of minutes be x

and the total charges be y

y=x+20

BetterSun charges

charges per minute= $2

let the number of minutes be x

and the total charges be y

y=2x

Required:

how many minute will dey charge the same amount

x+20=2x

2x-x=20

x=20 minutes

Answer:

9 cans of tomato soup

Step-by-step explanation:

We are told that only cans of tomato soup and cans of chicken soup are put on the shelf.

Now, we are told that the ratio of the number of cans of chicken noodle soup to the total number of cans on the shelf was 8 to 17.

In fraction, this is 8/17

Now, this implies that there are 8 cans of chicken noodle soup while there are a total of 17 cans on the shelf.

Thus,

Since only cans of chicken noodles and cans of tomato soup are on the shelf, it means;

Cans of tomato soup = 17 - 8 = 9

Answer:

9 Cans of Soup

Step-by-step explanation:

I took the quiz and got it right :D

Answer: 1

1/2 + -1/2 = 1/2

Answer:

See below.

Step-by-step explanation:

5a)

In an isosceles triangle, the angles opposite the congruent sides are congruent.

m<A = 40 deg

m<B = 40 deg

m<A + m<B + m<C = 180

40 + 40 + m<C = 180

m<C = 100 deg

5b)

In a right triangle, one angle is a right angle.

m<A = 40 deg

m<B = 90 deg

m<A + m<B + m<C = 180

40 + 90 + m<C = 180

m<C = 50 deg

Answer:

22.13

Step-by-step explanation:

Given that :

Initial quantity = 590

Decay rate = 55% per year

Value of the quantity after 21 months to the nearest hundredth

If decât rate per year = 55%

Monthly rate of Decay = 55% / 12 = 0.0458333

Hence, quantity after 21 months :

Initial amount - (Initial amount * 21(monthly Decay rate))

590 - (590 * 21(0.0458333))

590 - 567.874587

= 22.125413

= 22.13 (nearest hundredth)

Answer:

\approx 225.34

≈225.34

Step-by-step explanation:

Answer:

[tex] \frac{1}{3} \div 9[/tex]

to get the time for each question

Answer:

cool

Step-by-step explanation:

Answer:

125

Step-by-step explanation:

u do 5 to the power of 3 then to the power of 1. yw.

Answer:

The two piles will still be equal in value

Step-by-step explanation:

From the question,

Sven has $1 and a dime in his pile, and

Dayna has 11 dimes in her pile.

Now,

If Sven gives Dayna $1 and Dayna gives Sven ten dimes,

To determine if the two piles will still be equal in value,

First, we will determine what each of Sven and Dayna has presently.

For Sven,

He has $1 and a dime, he gives out $1 and received ten dimes, that means

$1 + 1 dime - 1$ + 10 dimes = 11 dimes

Now, Sven has 11 dimes with him

For Dayna,

She has 11 dimes, she gave out 10 dimes and received 1$, that means

11 dimes - 10 dimes + $1 = $1 and a dime

Now, Dayna has $1 and a dime.

To determine if the two piles will still be equal, we will convert Dayna's dollar ($) to dimes

(NOTE: 10 dimes make a dollar, that is, 10 dimes = $1)

Dayna has $1 and a dime,

$1 + 1 dime = 10 dimes + 1 dime = 11 dimes

∴ She has 11 dimes.

Since, Sven has 11 dimes as well,

Hence, the two piles will still be equal in value.

Answer: Stacie will have to pay $655 for a 2 year membership

Answer:$655

Step-by-step explanation:

She has to pay 175 dollars upfront. So we know this amount will be added to what she pays. She pays 20 per month. If in two years there are 24 months, then you have to multiply 20 times 24, giving you 480. You have to then add the 480 and the 175, giving you 655. She will pay $655 for a 2 year membership.

Answer:

Step-by-step explanation:

Well so it is asking you the statements and reasons and there is a select button it would be..... Hold on think about the letter formation. Just choose your best answer you think it is because if we are telling you thats cheating. But look above what I said. Think of the letter formation and quardinate with the question. I am speeding and yes I know I spelt it wrong.

Answer: its c

Step-by-step explanation:

distribute the number on the outside of the parenthesis.

Answer:

d

Step-by-step explanation:

m= 6-10 / -1-(-5) = -2

Hope this Helps :)