Shya works part-time at a gift-wrapping. the store sells wrapping paper rolls and package of wrapping rolls. there are a total of 125 rolls and package. each roll costs $3.50 and each package costs $2.25. the total of all of the rolls and package is $347.50 . how many rolls of wrapping paper are there? show good work and explanation.

y=72

x=53

there are 72 packages

Step-by-step explanation:

3.5x+2.25y=347.5

x+y=125

Thereby y=125-x

so

3.5x+2.25(125-x)=347.5

3.5x-2.25x+281.25=347.5

1.25x=66.25

x=53

53+y=125

y=72

60 rolls

Step-by-step explanation:

first thing you want to do is add 3.50 +2.25 = 5.75

Then you divide 347.50 by 5.75

which is 60.34...

if you round that off it will be 60 rolls

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.

d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.