Answer: There are 32 dogs and 1 Parrot
Step-by-step explanation: I had a question like this in a math class. What you first do is to recognize that- parrots have 2 legs and dogs have 4. We can do 130/2 = 65 and 130/4= 32.5. Now we know that if there was only one animal, there would be 65 parrots, and 32 dogs- one with half of the legs. Since there is a .5 for the dogs, if we put in one parrot, it would mean that there is exactly 130.
(32 x 4)+(2x1) = 130. There are 32 dogs and 1 Parrot. I hope this answer is ✅ and helps, i just joined the community and this is the first person I answered. Good Luck!!
Answer:
Step-by-step explanation:
To solve this, we need to list some equations. Letting variable d stand for dogs and p stand for parrots, we have:
d+p=40 (The number of dogs plus the number of parrots equals 40)
4d+2p=130 (Each dog has 4 legs and each parrot has 2 legs and they have 130 legs in total)
With this system of equations, we can quickly solve it for d and p.
Subtract:
4d+2p=130
- d+p=40
_________
3d+p=90,
p=90-3d
Substitution:
d+(90-3d)=40
90-2d=40
-2d=-50
d=25
Substitution to get p:
p+25=40
p=15
There you have it! There are 25 dogs and 15 parrots. To check our work,
25+15=40
4(25)+2(15)=100+30=130
I hope this helped! :)
