Answer:
Step-by-step explanation:
(3 x 9) + (5 + 8) + (33/3) = 51
27 + 13 + 11 = 51
Answer:
it is 11 i believe if not sry delete my answer
Step-by-step explanation:
Answer:
added cement = 200 kg
Step-by-step explanation:
Sand = 0.8*1400
Sand = 1120 kg
If 1120 kg of sand represents the total sand in the 8:2 mixture.
We have to create the equation of the 7:3 mixture as follows.
The sand amount continues the same but the total amount of the mixture and cement will change.
0.7*mixture_mass + 0.3*mixture_mass = mixture_mass
By replacing values, we have:
1120 kg + 0.3*(1400 kg + added cement)= 1400 kg + added cement
added cement = 200kg
Answer:
I think that x=multiplication for you and if it´s like that the result is -15.000
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
