Answer is b. 54
Because 0.45 × 120 = 54
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Step-by-step explanation:
8-9= -1
1-3= -2
-1/-2= 1
Gradient or Slope= 1
Answer:
1) 4
2) 3
3) 9
4) 6
5) 3/4
Step-by-step explanation:
Answer:
$12.50
Step-by-step explanation:
c is cat food d is dog food
3c + 4d = 43
3c + 6d = 54
subtract those to get
2d = 11
d = 5.50
3c + 2d = 3c + 22 = 43
3c = 21
c = 7
c+d = 7 + 5.50 = 12.50
Step-by-step explanation:
y is directly proportional to x
y = kx
k represents the constant of proportionality.
when y = 20 and x = 8:
20 = 8k
Dividing both sides by 8 gives:
k = 2.5
Hence when x = 3.
y = 2.5(3)
y = 7.5 .