Arectangular solid that is 6cm by 6cm by 6cm is painted on all six faces. then the solid is cut into cubes that measure 2cm on each side . how many cubes have only one face painted ?

6 cubes.

Step-by-step explanation:

By looking at the picture attached we find that the only cubes that will have only once face painted are the ones located in the middle. The cubes near to the edge will have at least two faces painted.

Given that a cube has 6 faces, we can conclude that only 6 small cubes will have one face painted.

if gloria has "carry over" minutes, (that is, any minutes paid for but not used in a month can be applied to her payment for minutes in the next month,) her total usage for the three months is: total minutes = 320 + 243 + 489 = 1052 minutes number of 200 minute blocks = 1052/200 = 5 r52 (that is 5 with a remainder of 52) rounding up the number of 200 minute blocks gives her usage for the three months as 6 blocks. the cost for six blocks is 6 x $25 = $150 she also has 200 - 52 or 148 carry over minutes if gloria pays each month and unused minutes are lost, applying the rounding up procedure to each month gives: first month usage of 320 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 second month usage of 243 minutes rounds up to 2 blocks of 200 minutes for a payment of 2 x $25 = $50 third month usage of 489 minutes rounds up to 3 blocks of 200 minutes for a payment of 3 x $25 = $75 total payments for the three months are $50 + $50 + $75 = $175 get the plan with carry over minutes!