Answer:
4 cookies
Step-by-step explanation:
Let the number of cookies he sold be c and that of brownies be b.
Assuming that brownies and cookies are the only type of baked goods sold,
b +c= 10 -----(1)
Amount of money received= $20
b(cost of brownie) +c(cost of cookie)= $20
2.50b +1.25c= 20 -----(2)
From (1): b= 10 -c -----(3)
Substitute (3) into (2):
2.50(10 -c) +1.25c= 20
Expand:
2.50(10) +2.50(-c) +1.25c= 20
25 -2.50c +1.25c= 20
-1.25c +25= 20
Being constants to 1 side:
-1.25c= 20 -25
-1.25c= -5
c= -5 ÷(-1.25)
c= 4
Thus, Joe sold 4 cookies.
Answer:
P = 3/6.
Step-by-step explanation:
there are three odd numbers and three even numbers on a 6-sided die. the probability of rolling an odd number is 50%, which can be converted to 1/2, or 3/6. hope this helps
- Zombie
A puddle
Explanation:
Let's think of it this way. You should drink 2 - 3 liters of water everyday, and you obviously aren't suppose to drink a lake amount of water everyday, so a puddle makes more sense.
Answer:
24.46
ahh im so redfaced rn help lol XD
T= 1.272..
12.5t = 15.9
Therefore t= 1.272
