Alright so because there are no brackets around the 10+3 then your coefficient on the brackets is 3
so times everything inside your brackets by 3
3 x 2v=6v
-3 x 3=-9
10-9+6v now simplify
6v+1 DONE!
Answer:
72.2 = 2x + 40.6
Step-by-step explanation:
Formula for perimeter of a rectangle = 2( width + lenght)
P = 2 ( w + l)
P= 2w + 2l (i)
We have been given that width = x
and lenght = 20.3 inches and P = 72.2 inches
We substitute the values of P, w and l into equation (i)
72.2 = 2x + (2*20.3)
72.2 = 2x + 40.6
Answer:
5x+56
Step-by-step explanation:
5x+8(5+2)
5x+8(7)
The basic facts she used to help her estimate are (c) 28 + 7 and (d) 30 + 5
<h3>What are estimates?</h3>
Estimates are approximated calculations that are used in place of an actual calculation
The expression is given as:
28 + 7
When the numbers are approximated to the nearest 5, we have:
30 + 5
Hence, the basic facts she used to help her estimate are (c) 28 + 7 and (d) 30 + 5
Read more about estimations at:
brainly.com/question/7068223