Answer:
Step-by-step explanation:
8x²-x-8
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: .6 ft. every hour
Step-by-step explanation: when you add the amount of feet added each hour you get .6 ft.
Answer: z = 264
Step-by-step explanation:
x to z = 16 to 176
x = 24 to ?
16/176 = 24/z
cross-multiply solve for z
z = 264
I think you need to figure out how much he makes an hour first then its very easy from there.
