Kate's model is correct because 10 times the value of 4 rods, 10(4(10)), is 400. Mel's model represents 4(1)=4, which is incorrect. Kate's model represents 4*100=400, which is correct.
Hope I answered your question!
R= 8
C= 2,5•r+15
C= 2,5•8+15
C= 20+15
C= 35
Nina's total cost will be 35 $, £, € (i don't know which of them)
Hello!
You can expand the 4
4x + 8
the answer is 4x + 8
Hope this helps!
Answer:
3
Step-by-step explanation:
8.4 ÷ 3 = 2.8
(Hopefully this answers your question)
