There were 28 white ducks swimming in a pond.Twice as many brown ducks flew in and landed in the pond.
Then half of the white ducks flew away.
How many ducks remained in the pond?

System of equations that can be used to find the price of one drink and the price of one bag of popcorn is:

3d + 10p = 41

2d + 2p = 11

Price of a bag of popcorn is $ 3.5

Solution:

Let "d" be the price of one drink

Let "p" be the price of 1 bag of popcorn

Luke spends total of $41 on three drinks and 10 bags of popcorn

3 drinks x price of one drink + 10 bags of popcorn x price of 1 bag of popcorn = 41

3d + 10p = 41 ------ eqn 1

Christopher spend a total of $11 on two drinks and two bags of popcorn

2 drinks x price of one drink + 2 bags of popcorn x price of 1 bag of popcorn = 11

2d + 2p = 11 ------- eqn 2

Eqn 1 and eqn 2 represents system of equations that can be used to find the price of one drink and the price of one bag of popcorn

Let us solve eqn 1 and eqn 2 to find values of "d" and "p"

Multiply eqn 2 by 5

10d + 10p = 55 --- eqn 3

Subtract eqn 3 from eqn 1

3d + 10p = 41

10d + 10p = 55

(-) ------------------------

-7d = -14

d = 2

From eqn 2,

2d + 2p = 11

2(2) + 2p = 11

4 + 2p = 11

2p = 7

p = 3.5

Thus price of 1 bag of popcorn is $ 3.5 and price of one drink is $ 2

The jump that does not round to 4.7 meters is the third jump.

In order to determine which option does not round to 4.7 meters, each of the options has to be rounded off to the nearest tenth. The nearest tenth is the first number after the decimal point.

How to round off to the nearest tenth

1. examine the number in the hundredth place.
2. If the  hundredth figure is less than 5, the tenth number does not change.
3. If the hundredth figure is equal or greater than 5, 1 would be added to the tenth figure.

• The first jump rounds off to 4.7 meters
• The second jump rounds to 4.7 meter
• The third jump rounds off to 4.6 meters
• The fourth jump rounds off to 4.7 meters

A similar question was answered here: brainly.com/question/8085738

Answer:

8

Step-by-step explanation:

4+4 =8

Answer:

use any angle which would give 360 as sum

Answer:

you can use any angle to find x