The number is assumed to be x
x of 40% = 56
x * (40/100) = 56
x = 5600 / 40
x = 140
Answer:
Density is equal to mass/volume, so in your case:
density=1.3/1000=0.0013 g/cm^3
Step-by-step explanation:
Answer:
x = 3.2
Step-by-step explanation:
Divide 400 by 125 to get x.
Let Jenny = J
Let Mica = M
J = M + 4
Now you have to represent 5 years ago
J - 5 = 2*(M - 5)
J - 5 = 2M - 10 Substitute J = M + 4 Into this equation
M + 4 - 5 = 2M - 10 Combine terms on the left
M - 1 = 2M - 10 Add 10 to both sides
M - 1 + 10 = 2M Combine one the left
M + 9 = 2M Subtract M from both sides
9 = 2M - M
9 = M Answer Miki
J = M + 4 Substitute Miki's age for M
J = 9 + 4 Answer Jenny
J = 13
Answer:
Jenny = 13
Mika = 9
Answer:
7u-4v/8
Step-by-step explanation:
u+6u=7u
-v+(-3v)=-v-3v=-4v
7u-4u/8