Answer:
14 books
Step-by-step explanation:
Let b = number of books at the beginning
She sold 1/2 of the books
b - 1/2 b
This is how many she had left
Then she bought 7
b - 1/2 b + 7
this equals 14
b - 1/2 b + 7 = 14
Combine like terms
1/2 b + 7 = 14
Subtract 7 from each side
1/2 b = 14-7
1/2 b = 7
Multiply each side by 2
1/2 b * 2 = 7*2
b = 14
She started with 14 books
Answer:
33ft/sec
Step-by-step explanation:
Divide the distance by time to find speed:
330ft / 10 sec = 33ft/sec
Answer:
circumference=πD
R=10
D=20
3.14*20
=68.2
Step-by-step explanation:
-6, -4, -2, 0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32
Answer: 32
Here is the working:
17x5+5x11
=140
Therefore the answer is (D) 140 square units.
I hope this is helpful
