Answer:
x=5 cm
Step-by-step explanation:
The two triangles are similar by AA~. So, x and 4cm are corresponding side lengths, just like 4cm and 32 cm are.
Therefore, you can set up the proportion
4/32 = x/40 and solve to get x = 5
Answer: y = 8x
3 x 8 = 24
5 x 8 = 40
8 x 8 = 64
-1. is -3/7
6×-4/11*7 ÷ (4/3×6/11)
-24/11×7 ÷ (4/3×6/11)
-24/77 ÷ (4/3×6/11)
-24/77 ÷ (24/3×11)
-24/77 ÷ 24/33
-24/77 × 33/24
-1/77 × 33
-33/77
-3/7
Answer: $6.50 + $2x ≤ $15.00
