Answer:
B) 20%
Step-by-step explanation:
Using the information given in the problem, the ratio of cats to dogs is 7:3 and the ratio of birds to dogs is 5:6. In order to find the total ratio of all three animals, you need to compare the ratios given:
Cats: Dogs is 7:3 and Birds: Dogs is 5:6
Since the ratio of Dogs increases from 3 to 6 in the two ratios, this is a factor of '2'. We would need to also increase the amount of Cats by a factor of '2' to compare all three animals: 7 x 2 = 14.
The overall ratio of all three animals is:
Cats: Birds: Dogs = 14:5:6
When we add 14 + 5 + 6 = 25, we can then take the number of birds in the ratio divided by the total number of animals to get a percent of birds at the store:
Answer:
22.67 containers.
Step-by-step explanation:
The number of cars washed is the average by the total hours worked:
Given that each car uses 1/3 tin of wax, the total containers is calculated as:
Hence, the car wash uses 22.67 containers of wax per day.
The initial value: 25, rate of change: -5 ⇒ answer C
Step-by-step explanation:
The table:
→ x : 1 : 3 : 5 : 7
→ y : 20 : 10 : 0 : -10
The linear relation between x and y is y = m x + b, where
Let us use the table to find m and b
∵ , where
and are any two ordered pairs in the table
∵ = (1 , 20)
∵ = (3 , 10)
∴
∵ m is the rate of change
∴ The rate of change is -5
Substitute the value of m in the form of the linear relation
∴ y = -5 x + b
To find b substitute x and y in the equation by the coordinates of any points in the table, let us chose point (5 , 0)
∵ x = 5 and y = 0
∴ 0 = -5(5) + b
∴ 0 = -25 + b
- Add 25 to both sides
∴ 25 = b
∵ b represents the initial value
∴ The initial value is 25
The initial value: 25, rate of change: -5
Learn more:
You can learn more about the linear equation in brainly.com/question/4326955
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