Answer:
Step-by-step explanation:
This can be modelled with the variable x to represent the "groups"
3x + 2
Multiplifcation means groups of.
3x is 3 times x, which is 3 groups of x.
Answer:
The answer is B 10 L
Step-by-step explanation:
let milk and water in the mixture be 7x and 4x equal 55L
let x Liters of water he added so that the ratio is 7:6
cross multiply
Image needed to determine
Answer:
69.08 cm
Step-by-step explanation:
Volume of each container
= l*b*h
= 20cm*30cm*50cm
= 30000cm ^3
= 0.03 m^3
The volume of 200 of these containers
= 0.03*200
= 6 m^3
The volume of the tank is also equal to 6m^3
Volume of tank = πr^2h
πr^2h= 6
πr^2= 6/4
r^2 = 6/4*7/22
= 42/88
= 0.477
r= √0.477
= 0.6908m
= 69.08cm
Answer:
73.5
Step-by-step explanation:
In the attached file
