4+8 is 12 so yes it is correct!!!
2x + 1 > 15
2x > 15 - 1
2x > 14
x > 14/2
x > 7 <=== simplified form
Answer:
x = 8
Step-by-step explanation:
Given
- 8(- x - 7) = 120 ( divide both sides by - 8 )
- x - 7 = - 15 ( add 7 to both sides )
- x = - 8 ( multiply both sides by - 1 )
x = 8
Answer:
12 and 48
Step-by-step explanation:
let n be the larger number , then 
n is the smaller number and their sum is
x + x = 60 ( multiply through by 4 to clear the fraction )
4x + x = 240 , that is
5x = 240 ( divide both sides by 5 )
x = 48
smaller number = × 48 = 12
The 2 numbers are 12 and 48
In triangle do pythogrean to find height 5 sq -3sq = 16 and sq rt of 16 is 4
So triangles are 1/2 bh 1/2 (3)4 = 6
One sale 5x5 one shape 5x4 one gape 3x5 plus two triangles
25+ 20+ 15 + 6+6= 72
