The square root of 144= 12. 12 is an integer, integers are always rational since they can be written into a fraction.
Answer:
- 3
Step-by-step explanation:
Substitute x = 1 into f(x)
f(1) = - 3(1) = - 3 × 1 = - 3
Answer:
5x+10
Step-by-step explanation:
(7x+4) - (2x-6)
Distribute:
7x + 4 - 2x + 6
Combine like terms
5x + 10 (ans)
Step-by-step explanation:
LCM=5×5×5×5×9=5625
Answer:
8 dogs
Step-by-step explanation:
Petland sold 5 times as many cats as dogs
A total of 48 cats and dogs were sold
Let c represent the number of cats sold
Let d represent the number of dogs sold
c + d= 48..........equation 1
Since 5 times as many cats as dogs were sold
c= 5d
Substitute 5d for c in equation 1
5d + d= 48
6d= 48
Divide both sides by the coefficient of d which is 6
6d/6 = 48/6
d= 8
Hence 8 dogs were sold
