Answer:
The answer would be 0.8, 8 squares filled.
Step-by-step explanation:
This is because 0.4*2 is 0.8 and that out of a grid of 10 means that 8 cubes would be shaded.
Answer: 1.495
Explanation: The first digit after the decimal is the tenths place. After that it's the hundredths then the thousandths. If the digit after the thousandths place is 5 or higher then you would round the thousandths place up. Considering it's not higher then it would stay the same.
Let the number of chemistry books be x and the number of calculus books be y
total number of books in each case is:
x+y=24
x=24-y.....i
Weight of each case:
2707.2/20
=135.36
thus
4.2x+6.0y=135.36..ii substituting i in ii
4.2(24-y)+6y=135.36
100.8-4.2y+6y=135.36
hence
1.8y=34.56
y=19.2
hence
x=24-19.2
x=4.8
thus the number of chemistry books was 4.8*20=96 number of calculus was
19.2*20
=384 books
In this case the answer is 1/4 because she makes 2 revolutions in 8 minutes. 2/8 = 1/4
Step-by-step explanation:
A={6,9,11},B=ϕ
Here, B is empty set.
Therefore,
A∪B
=A∪ϕ
={6,9,11}
A intersection ϕ is ϕ I guess
