Answer:
There are 15 numbers of chicken and 25 numbers of bulls.
Step-by-step explanation:
The pen had chickens and bulls. The pen contains 40 animals in total. The number of legs in the pen is 130 .
Let
a = number of chicken
b = number of bull
a + b = 40................(i)
A chicken has 2 legs and a bull has 4 legs.
The total legs can be represented as
2a + 4b = 130...........(ii)
combine the equation
a + b = 40................(i)
2a + 4b = 130...........(ii)
a = 40 - b
insert the value of a in equation(ii)
2(40 - b) + 4b = 130
80 - 2b + 4b = 130
80 + 2b = 130
2b = 130 - 80
2b = 50
divide both sides by 2
b = 50/2
b = 25
Insert the value of b in equation (i)
a + b = 40
a + 25 = 40
a = 40 - 25
a = 15
There are 15 numbers of chicken and 25 numbers of bulls.
Answer:
Step-by-step explanation:
It's asking for the "perimeter" of the molding as far as I can tell,
namely, how long is the border of that molding
notice the picture here
Answer:
a).
= (67×10)÷2
= 670 ÷ 2
= 335
Explanation:
a).
= (67×10)÷2
= 670 ÷ 2
= 335
So, 5×67 = (67×10)÷2
=> 335 = 335
b).
= (67x2)+(67×2)
= 134 × 134
= 268
So, 5×67 ≠ (67x2)+(67×2)
=> 268 ≠ 335
c).
= (6 ×7)×5
= 42 × 5
= 210
So, 5×67 ≠ (6×7)×5
=> 210 ≠ 335
d).
= (5×6)+(5×7)
= 30 + 35
= 65
So, 5×67 ≠ (5×6)+(5×7)
=> 65 ≠ 335
<u>Hence</u><u>,</u><u> </u><u>(</u><u>a</u><u>)</u><u> </u><u>is</u><u> the</u><u> correct</u><u> answer</u><u>.</u>
D) Radius
It is going from the center to a point on the circle
