The first one is 9/25
The second one is 29.44
The last one is 8
For the first one you will do 9 divided by 3 to the power of 2 For the second one it will be 27 divided by 3to the power of 3 the last one will be 81 divided by 3 to the power of 4
X would be -5
Hope this helps :)
Let a=number of pens and b=number of pencils.
8a+7b=3.37; 5a+11b=3.10.
To eliminate a variable multiply the first eqn by 5 and the second by 8:
40a+35b=16.85, 40a+88b=24.80.
Subtract these equations: 53b=7.95, b=$0.15. So 5a=3.10-1.65=$1.45, a=$0.29.
Pens are $0.29 each and pencils $0.15.
Answer : 6
Step-by-step explanation:
Add Together The Total Number Of Purchased Key Chains And Then Subtract The Total Number ( 17 ) By 11 To Find The Missing Value .
