Answer:
RS = 10
Step-by-step explanation:
We are told that to get ∆QRS, the scale factor of ⅖ was used. To get side RS, we would multiply the side length of the side that corresponds to RS.
YZ corresponds to RS.
YZ = 25
Thus,
RS = 25*⅖
RS = 10
Answer:
2 or 1
Step-by-step explanation:
2 + 4 × 2 = 10
1 + 4 × 1 = 5
Answer:

The volume is 128cm^3
Step-by-step explanation:
Given


Required
Determine an expression for its volume
Find the volume
Volume of a cube is:

Where x represents the length of a side
So, volume of 2 cubes would be:


Solving (b): Volume when x = 4
Substitute 3 for x in 



<em>Hence, the volume is 128cm^3</em>
Answer: 4
Step-by-step explanation:
20 divided by 5+8+3 times 5.
Which can be broken down as 20 divided by 16 times 5.
First, multiply 16 by 5 and that gives you 80. 80/20 = 4, and there’s your answer.