B=3d and b=d+4
Since b=b we can say:
3d=d+4 subtract d from both sides
2d=4 divide both sides by 2
d=2
Daniel is 2 years old. (and Ben is 6 years old)
20 - (4xn) = 4 is the equation
I’m not sure but I think
F (2, -1)
G (1, -3)
H (-3, -1)
Answer:
Step-by-step explanation:
cats : dogs
5 : 3
Since you are looking for dogs it is :-
× 60 cats (the number of cats).
× 60 cats = 36 dogs.
∴ There are 36 dogs.
So, the ration is 17:3, you know that. Therefore, the change from # of students to the 17 is the same change as # teachers to 3. Knowing this, you also know that the total # of people ihas the same change as the total ratio. So 17+3 = 20. 740/20 = 37. So the change is 37. 3x37= 111 17x37=629
You can check to make sure this answer is correct by adding the two final numbers. 111+629 = 740. (Some find it easier to see lined up really pretty)
17 -- 3 total 20
x -- y total 740
Or, if you are visual, look at the picture I drew:
