Answer:
216
Step-by-step explanation:
72= 36 +36
36(3)+36(3)=216
I'm honestly not sure ,tell me if it's wrong :/
Answer:
80000bacterias
Step-by-step explanation:
Volume of the bedroom= length ×width× height
Given
Length = 2m
Width = 4m
Height= 2.5m
Volume of the bedroom= 2×4×2.5
Volume of the bedroom = 20m³
Given that;
4000bacterias = 1m³
x bacteria = 20m³
Cross multiply
x =4000×20
x =80000
Hence 80000 bacteria's are present in Bill's room
L=2w-3
w(2w-3)=54
2w²- 3w-54=0
A= 2 , B= -3, C= -54
sub values into quadratic formula
i attached picture of formula
Final answer: you will be given 2 answers 6 and -4.5. -4.5 is rejected since a negative value cannot represent length because that just doesn't make sense.
w=6
Check:
L=2w-3
=2(6)-3
=12-3
=9
9*6=54
Therefore the dimensions of the photograph are 6 cm by 9 cm
Answer:
He drove 120 km
Step-by-step explanation:
We know that 1 hour of driving is equal to 80 km. We need to find out for 1.5 km. First, we need to know how much km for 1/2 of an hour. Which will be 40, because 80/2=40. Then we add up the 40 to the 80, and we get 120 km in total.