Answer:
60
Step-by-step explanation:
∑[i=1,5] 4i = 4·1 + 4·2 + 4·3 + 4·4 + 4·5
= 4 + 8 + 12 + 16 + 20
= 60
Answer:
22
Step-by-step explanation:
Given that:
Let number multiplied by 54 = x
Let output = y
x * 54 = y + 198
x * 45 = y
54x = y + 198 - - - (1)
45x = y - - - (2)
Put y = 45x in (1)
54x = 45x + 198
54x - 45x = 198
9x = 198
x = 22
Number multiplied by 54 is 22
Answer:
14 to 8 I think
Step-by-step explanation:
Not too sure but looked on my old ratios sheet and there's 80:140 so that could be right but honestly none of these look right, I attached the photo of what my teacher told us to use last year to check answers
The answer to #5 is 1540
The answer to #6 is 17017
