Select the correct answer. which of the following numbers is equivalent to 5.1 × 10-2? a. 0.0051 b. 0.051 c. 510 d. 5,100

Option B. 0.051

Step-by-step explanation:

The given number 5.1 × has been written in scientific notation

implies that division by 100 in 5.1

When we divide 5.1 × means division by 100  in 5.1.

when we divide 5.1 by 100 decimal gets shifted by two numbers to the left.

5.1 × =

= 0.051

Therefore, Option B. 0.051 is the answer.

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:

351.23

step-by-step explanation: