Margo can purchase tile at a store for $0.59 per tile and rent a tile saw for $14. At another store she can borrow the tile saw for free if she buys tiles there for $1.29 per tile. How many tiles must she buy for the
cost to be the same at both stores?
Margo must buy
tiles for the cost to be the same at both stores.
PLSS HELPP

lmk if this helps

: • 1:33)= 8 • x

7.998 = 8x

    1 = x

•59x + 32 = 1.39x

32 = .8x

40 = x

20 tiles

Step-by-step explanation:

If she buys 60 tiles, the cost at both shops is the same.

If she buys less than 60 tiles, then the second shop is cheaper.

If she buys more than 60 tiles, then the first shop is cheaper.

Explanation:

Let the number of tiles be

x

At the first shop: Cost = $0.59 × x + $14 = 0.59x + 14

At the second shop: Cost = $ 1.29 × x = 1.29x

If the cost is the same:

1.29x = 0.59x + 14 ←solve for x

1.29x − 0.59x = 14

0.7x = 14

x = 14/0.4

x = 20 tiles

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m