Answer:
There is no error.
Step-by-step explanation:
3 x 5 equals 15. Good. Now, 3+3+3+3+3 also equals 15. Meaning, that both equations equal the same number, and that the equation is true.
Answer:
3x-2y=22
Step-by-step explanation:
Answer:
75
Step-by-step explanation:
because the formula of finding the area of a triangle is base times height divided by 2 so thatshow you get the answer, multiply 10by15 and then divide by 2
Answer:
3/7 of the class are boys
Step-by-step explanation:
we have :
a+b=c
a= girls =16
b=boys = 12
c= total= 28
a/c=16/28=4/7
b/c=12/28=3/7
so we have:
(3/7) * c= 12
(3/7) * 28=12
3/7 of the class are boys