#2
Change mixed numbers to improper fractions. Then change division to multiplication by the reciprocal.
1 1/2 divided by 3/5=
(3/2) * (5/3) = 5/2 = 2 1/2
#3
(5/9) divided by (5/3)
(5/9) * (3/5) =3/9 = 1/3
Water-cement ratio is the ration of mass of water to the mass of cement.
Numerically it is around 0.5, depending on the desired strength and workability.
A low ratio results in a dry mix which is difficult to compact, with a risk of developing voids in the final concrete.
A high ratio weakens the concrete, and is highly undesirable if strength is important.
To improve both the strength and workability of the concrete, sometime plasticizers are added.
It would have been appropriate to post this question in the Engineering section (if one is available).
Answer: the difference in yearly median income for a female vs male at a masters degree level is
$15,642.90/year
Step-by-step explanation:
there are roughly 52.143 week in a year.
the median weekly income for a female with a masters degree is : $901.00
the median weekly income for a male with a masters degree is :
$1,201
so if you multiply $901 x 52.143 you get :
$46,980.84, which is what a female makes in a year with a md
and if you multiply $1,201 x 52.143 you get :
$62,623.74, which is what a male makes in a year with a md
subtract $62,623.74 - $46,980.84 you get :
$15,642.90 / year
Step-by-step explanation:
Hope this is correct
Have a good day!
Hello,
Answer B
2x+y=6 (1)
-4x+3y=8 (2)
2*(1)+(2)==>5y=20==>y=4
==>2x=6-4==>2x=2==>x=1
