Answer:
2 months
Step-by-step explanation:
started with 20, an added 30 each month so 30 plus 30 equals 60, 2 months add it to 20, 60 plus 20 is 80. other girl started with nothing and added 40 each month so 40 plus 40 equals 80. also 2 months
Answer:
2 miles per hour
Step-by-step explanation:
1/4 x 4 = 1
1/2 x 4 = 2
1/4 is a quarter of 100, so you have to multiply it by 4 to get 100% or 1.
So 1/2 x 4 is 2, which is the mph.
Answer:
321,040
Step-by-step explanation:
Answer:
C 2b3 + b2 - 2b - 380
Step-by-step explanation:
Given:
Factory A: 2b^3 – 3b^2 + b - 120
Factory B: 4b^2 – 3b – 260
The company's total output = factory A + factory B
= (2b^3 – 3b^2 + b - 120) + (4b^2 – 3b – 260)
= 2b^3 – 3b^2 + b - 120 + 4b^2 – 3b – 260
Collect like terms
= 2b^3 – 3b^2 + 4b^2 – 3b + b - 120 - 260
= 2b^3 + b^2 - 2b - 380
C. 2b^3 + b^2 - 2b - 380
Option C is the correct answer