PLEASE HELP I WILL GIVE BRAINIEST What is the value of (8 x 10^-2) x (2 x 10^5)? Express your answer using
scientific notation
quest
O 1 x 10^4
O 16 x 10^3
O 1.6 x 10^4
O 10 x 103
O 16 x 10^-10

1.6 x 10^4

Step-by-step explanation:

First, 8*2 = 16

Since we are using scientific notation, this is expressed as 1.6 * 10^1

When we multiply using scientific notation, we add the exponents, therefore, 10^-2 x 10^5 = 10^3

1.6 x 10^1  x 10^3

We get 1.6 x10^4

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m