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.
Answer:
12
Step-by-step explanation:
hope u find this helpfull
If both expressions are equivalent (that is when both evaluate to the same number)
Answer:
B. A( L) = L² - 6L
Step-by-step explanation:
A rectangle has 2 sides, length and width.
length = L
width = L - 6
Area = length × width
= L(L - 6)
= L² - 6L
The correct choice is B.
B. A( L) = L² - 6L
