A.50*9.8
B.50*1.6
C.45.359237
D.45.3*1.6
Answer:
D
Step-by-step explanation:
I tried the last one and it did not work so maybe D
Answer:
Step-by-step explanation:
I'm going to write it so I can see it better:
You can use the difference of squares formula:
Answer:
16 cm
Step-by-step explanation:
Suppose that x is the original width. If that original width is enlarged by a scale factor 5/2 that means that x is multiplied by 5/2 and after that multiplication we obtained new width, 40 cm.
Therefore,
x*(5/2) = 40
We multiply the equation by 2 and obtain:
x*5 = 40*2
5x = 80
Now we divide the equation by 5 and obtain:
x = 80/5
x = 16
We obtained that x, the original width was 16 cm
