Let w be the amount juan earned walking dogs then (2w-6) is the amount juan earned mowing lawns the total amount juan earned is w +(2w-6) or w-6 emma wrote the expression 2(3w-6) to represent the amount of the money that juan spent is she correct explain

The expression written by Emma  to represent the amount of the money that Juan earned  is WRONG.

Step-by-step explanation:

Here, the amount earned by Juan by walking dogs = w

The amount earned byJuan lowing lawns  = (2w - 6)

Now, the total amount earned by Juan

= Amount  earned from (Mowing Lawn +  Walking dogs)

= w +  (2 w - 6)

On further simplification, we get:

w +  (2 w - 6)  =  w +  2w - 6   =  3w-6 =  3(w-2)

So, the total amount earned by Juan = 3(w-2)

Now, the expression written by Emma = 2(3w-6)

and 2(3w-6) ≠ 3(w-2)

Hence, the expression written by Emma  to represent the amount of the money that Juan earned  is WRONG.

sorry not sure

step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.