Answer:
1/20
Step-by-step explanation:
In Scarlette grade 1/5 of the students have a sister.
Of the students who have a sister 1/4 also have a brother
Therefore fraction if students in Scarlet's grade who had both brothers and sister can be calculated as follows
= 1/5 ×1/4
= 1/20
1/11
you just have to divide by 2
Step-by-step explanation:
(1 point)
No, there isn't a more efficient way to solve this system.
Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.
Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.
Answer:
135
Step-by-step explanation:
First, find the volume of the cube.
s³ = Volume
1 / 3 ³ = 1 / 27
Now divide 5 by 1 / 27 because you want to find how many cubes it takes to fill the prism.
5 / 1/27
5 x 27 / 1
= 135
