The ratio of dogs to cats
7 to 2
Let’s look at the answers and cross out some of them
A seems valid, 7/2= 3.5
So B is wrong because 7 is the number of dogs not the number of total animals.
C is wrong because this is a ratio, and if the ratio is 7:2 then there could be 14:4 dogs and cats. 14 — 4 isn’t 5. We are not certain there are exactly this much dogs and this much cats.
D) For every 7 dogs there are 2 cats. 7/2 is dogs divided by cats, while 2/7 is cats divided by dogs
So the correct answer is A
20/60 = 10/x
Cross multiply 10 with 60
600
Divide by 20
30.
It will take 30 minutes.
F(-4) = 3(-4)
f(-4) = -12
Hope that helps.
You can turn 25/8 into a mixed number by dividing it. It would = 3
We have two questions, but we need to find the volume of the spherical tank first.
So the formula we will use to find the volume is:
(4/3)πr³=V
Let's fill in the information we have and solve. We will be using 3.14 for pi.
(4/3)(3.14)6³
(4/3)(3.14)(216)
4.1867×216
I'll be using the repeating decimal for 4.1867, I rounded to 7, but there is a repeating 6.
904.32
So the volume is 904.32 yards³ (or 904.78 if using the full pi)
We have to multiply the volume by 7.15.
904.32×7.15
6,465.89
It will cost $6,465.89 to fill the tank with the liquid.
