Answer:
The last one
Step-by-step explanation:
A bird has only 2 legs, and a dog has 4 legs.
x=number of birds
y=number of dogs
We can susggest this system of equations:
x+y=18
2x+4y=50
We can solve this system of equations by substitution method.
x+y=18 ⇒ y=18-x
2x+4(18-x)=50
2x+72-4x=50
-2x=50-72
-2x=-22
x=-22/-2
x=11
y=18-x
y=18-11
y=7
Answer: we have 11 birds and 7 dogs.
The equation for speed is s=d/t, s=276/6.5. Then, you divide 276 in 6.5: s is approximately 42 miles/hour. So, he drove 12 miles/hour faster getting there than coming back home.
If your looking for the sequence in which the numbers are divided by to find the next number it would be 4.
48 divided by 4 is 12, then 12 divided by 4 is 3....
Answer:
is a
Step-by-step explanation:
be i know ever thing in the world