Answer: She had 200 cards to start with
Step-by-step explanation:
Let x = the amount of cards she had initially. This means she had x cards to start with.
She gave half of the cards she had to a friend. This means she gave her friend x/2 cards. She is left with with (x-x/2) = x/2 cards.
She also gave 1/4 of the remaining cards to her brother. This means that she gave (1/4 × x/2) = x/8 cards to her brother.
Remaining number of cards will be x/2 - x/8 = (4x-x)/8 = 3x/8
She still has 75 cards left. This means
3x/8 = 75
Cross multiplying with 8, it becomes
3x = 75×8 = 600
x = 600/3 = 200
She had 200 cards to start with.
Its the third option (2, 4)
Answer:
The maximum pounds of cheese that Ariana can buy is 8
Step-by-step explanation:
Let
x ---> the amount of cheese In pounds, that Ariana can buy
we know that
The cost of 3 loaves of bread plus the cost of the cheese must be less than or equal to $50
so
The inequality that represent this situation is
solve for x
subtract 10.08 both sides
divide by 4.99 both sides
Therefore
The maximum pounds of cheese that Ariana can buy is 8
Greater 1 km = 1000 m
so it's greater than 999 m
The relationship is proportional because it is in standard form
