I think it’s 98 square ft
Answer:
a’s average speed is 60km/h
Step-by-step explanation:
x = a’s average speed
60/40 = 90/x
Cross multiplication:
60x = 40x90
60x=3600
Divide both sides by 60
x= 60
Answer:
A. (3x^2 + 1)(x + 3)
Step-by-step explanation:
3x3 + 9x2 + x + 3
I will factor by grouping
Factor out a 3x^2 from the first two terms
3x^2 (x+3) + (x+3)
Then factor out an x+3
(x+3)(3x^2+1)
140 because 10 * 14 is 140
Given:
To rent a certain meeting room, a college charges a reservation fee of $39 and an additional fee of $8.40 per hour.
Let the number of hours = t and the total fee = F
So,
The chemistry club wants to spend less than $72.60 on renting the meeting room.
So, substitute with F = 72.6 and solve for t
so, the answer will be time should not exceed 4 hours