C 4
from one vertex there are 4 triangles that can form
Answer:
Step-by-step explanation:
-81=-5(v+5)-2v Original equation
-81=-5v-25-2v Distributive property
-81=-7v-25 Subtract like terms
-56=-7v Simplify
8=v Simplify
1. If the make up originally costs $4.30 but is on sale for 40% off, we need to find the sales price
Discount amount = original * discount rate = 4.30 *(.40) = $1.72
Sales price = original price - discount amount = 4.30 - 1.72 = $2.58
2. So we need to multiply the sales price by the tax rate
Tax amount = sales price * tax rate = 2.58 *(.06) = 0.1548
Final Cost = sales price + tax = $2.58 +$0.1548 = $2.7349 = $2.73
Answer:
10.8 cm
Step-by-step explanation:
we know that
1) A square picture with side length 30 cm is scaled by 60% on a photocopier
Remember that
![60\%=60/100=0.60](https://tex.z-dn.net/?f=60%5C%25%3D60%2F100%3D0.60)
so
The length of the first copy of the picture is
![30(0.60)=18\ cm](https://tex.z-dn.net/?f=30%280.60%29%3D18%5C%20cm)
2) The copy is then scaled by 60% again
so
The length of the second copy of the picture is
![18(0.60)=10.8\ cm](https://tex.z-dn.net/?f=18%280.60%29%3D10.8%5C%20cm)