In a survey, one out of five people named blue as their favorite color. Three out of ten named red. If 1,100 people were include
1 answer:
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One expression that Gary can use,where y is the amount of food eaten in a year and x the amount of food eaten in a weeks is:
y=x*52
but we actually know that the cats eat one third of 3 1/2 pounds, that is:
So we can substitute this:
y=
which is y=7*13=91
So we actually know that the cats eat 91 pounds of food a year!
y=x*52
but we actually know that the cats eat one third of 3 1/2 pounds, that is:
So we can substitute this:
y=
which is y=7*13=91
So we actually know that the cats eat 91 pounds of food a year!
Answer:
5 km/h
Step-by-step explanation:
Let x km/h be Ed's rate in the evening, then x+1 km/h is his rate in the morning. It takes him
hours in the morning to pass 12 km;
hours in the evening to pass 12 km.
In total, it takes him 5 hours 24 minutes ( hours), then
Solve this equation:
Ed's rate cannot be negative, thus x=4 km/h. His morning rate is x+1=5 km/h.
Answer:
d = ≈ 5.1 ( to 1 dec. place )
Step-by-step explanation:
to calculate the distance d use the distance formula
d = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (, 3) and (x₂, y₂ ) = (
, 8)
d =√ ( -
)² - (8 - 3)²
= =
≈ 5.1