Answer:
d=8km
Step-by-step explanation:
explanation is in the image above
Answer:
4/5
Step-by-step explanation:
0.8 (to a fraction) 8/10
8/2=4
10/2=5
4/5
Answer:
3/13
Step-by-step explanation:
Put the total number that tapped the ground AND 5/10 worms (which is 3) over the total number which is 13
so 3/13 which doesn't simplify
hope this helped :)
<span>Given Equation: 2a − 5d = 30
Solution:
2a - 5d = 30
-5d = 30 -2a
d = ( 30 - 2a )/ (-5)
= -6 + (2a/5)
= (2a/5) - 6
I hope this helps</span>
255 different groups of 4 paints can be selected out of the 20 paintings.
<h3>How many groups of four paintings can be chosen?</h3>
If we have a set of N elements, the number of groups of different sets of K elements that we can make out of these N is given by:
C(N, K) = N!/(K!*(N - K)!)
In this case we have a total of 20 paintings, and the curator wants to select 4, then we have:
N = 20
K = 4
The number of different combinations of 4 paintings is given by
C(20, 4) = 20!/(4!*16!) = (20*19*18*17)/(4*3*2*1) = 255
This means that 255 different groups of 4 paints can be selected out of the 20 paintings.
If you want to learn more about combinations:
brainly.com/question/11732255
#SPJ1
