Answer:
60+12
Step-by-step explanation:
5x12=60
Answer:
a) 50yd2
b) 7ft2
Step-by-step explanation:
a) 1/2 x b x b
1/2 x 4 x 25 = 50
b) 1/2 x b x h
1/2 x 4 x 3.5 = 7
Answer:
13, 14, 15
Step-by-step explanation:
Let x = age of one of the siblings
Since the age of the siblings are consecutive integers, the age of the next sibling would be x + 1 and the age of the third sibling would be x + 2
x +( x +1) + (x +2) = 42
3x + 3 = 42
collect like terms and solve for x
x = 13
The age of the first sibling is 13
The age of the second sibling is x + 1 = 13 + 1 = 14
The age of the third sibling is x + 2 = 13 + 2 = 15