Answer:
81 m²
Step-by-step explanation:
6x10=60
1/2(6)(7)=21
60+21=81
9 is itself a multiple of 3, so the least common multiple of 3 and 9 is 9 itself
Answer:
-5
Step-by-step explanation:
-3y = 10 + 5
-3y = 15
y = - 5
One number is 26 the other is 23
x+y=49
Y=x+3,X (now substitute it in the equation)
x+3+x=49
2x+3=49
2x=46. X=23
Y=x+3. Y=23+3 =26 for checking 23+26=49
Answer:

Step-by-step explanation:

A number squared also means that the number is multiplied by itself twice.
