Answer:
answer of 2a)
He started with $24 and spent $16. Let a represent his account balance after he bought the notebook and pens. Then
24–16=a
His new account balance is $8.
He has $8 in his account and then he deposited b dollars. His account balance is now $28. Then
8+b=28
His deposited $20 in his account.
He has $28 and spent $34. Let c represent his account balance after he bought the book. Then
28–34=c
His new account balance is -$6.
He started with an account balance of -$6 and paid the debt off so his account balance is 0. If d is the amount money he deposited to pay off his debt, then
−6+d=0
He deposited $6.
answer of 2b)
If he spends more than he has in his account, then we are subtracting a bigger number from a smaller number, and the result is negative. ... The opposite of a positive number is a negative number, so it makes sense to represent his account balance with a negative number when he owes money to the bookstore.
please give me brainliest:))
Answer:
It's a rational number
Step-by-step explanation:
Hope this help have a good day and good luck plz vote best answer :)
Answer:
1) 13x + 3
2) 2x
3) 6a -7b -4c
Step-by-step explanation: If its wrong; Just know its not far away from right. :()
So the short answer is 3/20 cups. When you take 3/4 and turn it into a decimal, .75 then you can easily divide .75 by 5 and you get .15 or 3/20.
1. Consider right triangle ABK. In this triangle AB is the hypotenuse, BK and AK are legs. By the Pythagorean theorem,

2. Use the definition of 

Then 
3. Consider right triangle ABD. In this triangle AD is the hypotenuse, AB and BD are legs. Since
then

The leg that is opposite to the angle of 30° is half of the hypotenuse, so

4. The area of parallelogram aBCD is
