Answer:
55/100
Step-by-step explanation:
22 of the 40 questions are answered correctly.
To find the percentage I multiply 22/40 by 100/100(it is equal 1)
(22/40)*100/100 = (22*100/40)/100 =55/100
Answer:
Just divide lol.
Step-by-step explanation:
The correct answer is sss
Ducks have 1 head. Dogs have 1 head.
Ducks have 2 feet. Dogs have 4 feet.
If x = no. of ducks and g = no. of dogs
x + g = 25
2x + 4g = 80
Let's use substitution to solve.
x + g = 25 ⇒ x = 25 - g
replace x with 25 - g in the other equation and solve for g
2x + 4g = 80
2(25 - g) + 4g = 80
50 - 2g + 4g = 80
50 + 2g = 80
2g = 30
g = 15
Now use g = 15 in an earlier equation to find x.
x + g = 25
x + 15 = 25
x = 10
1st you combine like terms so subtract 7y and 3y and you get 4y. So this is the final answer: 4y+4b.
