Answer:
BC = 26
Step-by-step explanation:
Given that:
B is the midpoint of AC
Then AC = AB + BC
AC = 8x - 20 and AB = 3x - 1
Then,
8x - 20 = (3x - 1) + BC
8x - 20 - (3x - 1) = BC
8x - 20 - 3x + 1 = BC
5x - 19 = BC
But AB = BC
5x - 19 = 3x - 1
5x - 3x = - 1 + 19
2x = 18
x = 9
Hence,
Since BC = AB = 3x - 1
3(9) - 1
27 - 1
= 26
write it out in the order they give
Julie , Roger
James , Julie, Roger
David, James, Julie, Roger
Sarah, David, James, Julie, Roger
David is in 2nd place
Answer:
4.79 g
Step-by-step explanation:
mass of salicylic acid = ??
Mass of polyethylene = 75 g
% w/w concentration = 6% w/w
Let the mass of salicylic acid be x
Let the mass of solution = 75 + x
from
% w/w = mass of solute/ mass of solution * 100
Hence concentration of salicylic is;
6 = (x/75 + x) * 100
6/100 = x/75 + x
0.06 (75 + x) = x
4.5 + 0.06x =x
4.5 = x-0.06x
x = 4.5/0.94
x= 4.79 g
Answer:
Jenny did not make any mistake.
Step-by-step explanation:
From the information given:
We are asked to do three things.
To find the equivalent fraction of 45%, The reduced fraction of 45%, The decimal fraction of 45%
The equivalent fraction of 45% = 
The reduced fraction means to divide
to its lowest value.
i.e. dividing both the numerator and denominator by 5, we have:

The decimal fraction of 45% = 0.45