Astore sold 21 sweatshirts. white ones cost $10.95 and yellow ones cost $12.50. in all, $260.95 worth of sweatshirts were sold. how many of each color were sold?

The store sold 1 white sweatshirt and 20 yellow sweatshirts

Step-by-step explanation:

Step 1: Express total cost of sweatshirts

Total cost of sweatshirts can be expressed as;

Total cost=(price per white sweatshirt×number of white sweatshirts sold)+(price per yellow sweatshirt×number of yellow sweatshirt sold )

where;

Total cost=$260.95

Price per white sweatshirt=$10.95

number of white sweatshirts sold=w

Price per yellow sweatshirt=$12.50

number of yellow sweatshirt sold=y

Replacing;

260.95=(10.95×w)+(12.5×y)

10.95 w+12.5 y=260.95...equation 1

Step 2: Express total number of sweat shirts sold

Total number of sweatshirts sold=number of white sweatshirts sold+number of yellow sweatshirt sold

where;

Total number of sweatshirts sold=21

number of white sweatshirts sold=w

number of yellow sweatshirt sold=y

replacing;

w+y=21...equation 2

Step 3: Solve simultaneously equation 1 and 2

1(10.95 w+12.5 y=260.95)>>>10.95 w+12.5 y=260.95

-

12.5(w+y=21)>>>12.5 w+12.5 y=262.5

(10.95 w-12.5 w)+(12.5 y-12.5 y)=260.95-262.50

-1.55 w=-1.55

w=1.55/1.55

w=1

Replace the value of w in equation 2

w+y=21

1+y=21

y=21-1=20

The store sold 1 white sweatshirt and 20 yellow sweatshirts

the cat is blue because the probability of extension towards the prefix of the diameter of the circle could only mathematically equal to the sum of the roots of the carrots from   your garden.

step-by-step explanation:

the square root of what number? if you add that, then someone will probably answer the question.