Answer:
20
Step-by-step explanation:
nPr = n!/(n-r)!
5P2 = 5!/(5-2)!
= 5!/3!
= 5×4×3!/3!
= 5×4
= 20
Answer:
in 9 different ways.
Step-by-step explanation:
divide 18 by 2 and u would get the answer
Adam descends 5 feet Multiply 5 by four and then you get 30 feet
Answer: oop
Step-by-step explanation:
Let X = smaller number
Let Y = larger number
Sum of numbers is 130 ==> X + Y = 130 ==> Y = 130 - X
4 times the smaller subtracted from the larger is 10 ==>
Y - 4*X = 10
Substitute the value for Y in to the 2nd equation
(130 - X) - 4*X = 10
130 - 5*X = 10
-5*X = -120
X = 24
Y = 130 - 24 = 106
Check: 24 + 106 = 130
106 - 4*24 = 106 - 96 = 10
Answer:
x=-3
Step-by-step explanation:
you first distribute -2 then add 6.2 to both sides of the equation the finnaly divide by -3.4 to both side then you will get x
(-2)1.7x+(-2)3.1`
-3.4x-6.2=4
+6.2 +6.2
-3.4x=10.2
-3.4x/-3.4= 10.2/-3.4
x=-3
