Answer:
5 miles
Step-by-step explanation:
1 mile per 17 minutes, the number of miles in 1 hour 25 minutes is the total time/the time it takes to walk a mile, 1 hour 25 minutes/17 minutes = 85/17 = 5 miles
The correct answer is:
[C]: "
37, 680 mm³ " .
________________________________________________________
Explanation:
________________________________________________________
The formula for the volume, "
V" , o
f a cylinder is: → V =
* r² * h ;
→ in which "
r = length of radius" ; "
h = height" ;
________________________________________________________ {Note that the formula for the
volume, "
V" ,
of a cylinder is: → "
Base area * height " .
________________________________________________________ → Specifically, for a cylinder, the "Base area" is the area of a "circle", because the base is a circle;
→ and the formula for the "
area of a circle = [
tex] \pi [/tex] * r² " ;
→ in which "
r =
length of the radius" .
As such, t
he formula for the volume, "
V"
, of a cylinder is:______________________________________________________ → Volume = (Base area) * (height) ;
= (
r² ) * h ;
______________________________________________________
→ V =
r² h ;
in which: "
V = volume {in "
cubic units" ; or, write as "
units³ "
} ;
"
r = radius length" ;
"
h = height" ;
_____________________________________________________ → Now,
we shall solve for the volume, "
V", of the given cylinder in this question/problem:
_____________________________________________________ → V =
r² h ;
in which: "
r = radius = ? " ;
→ To find "
r" ; We are given the diameter, "d = 40 mm" ;
→ Note that:
"r = d/2 = (40 mm) / 2 = 20 mm " ;
{i.e., "the radius is half of the diameter".}.
→ "
r = 20 mm " ;
→ "
h = height = 30 mm " {given in figure) ;
→ For
; let us use "
3.14 " — which is a commonly used approximation.
→ For this question/problem, none of the answer choices are given "
in terms of 
" ;
→ so we shall use this
"numerical value" as an "
approximation" ;
_______________________________________________________Now, let us plug in our known values into the formula;
and calculate
to find the volume, "
V",
of our given cylinder;
as follows:_______________________________________________________
→ V =
r² h ;
= (3.14) * (20 mm)² * (30 mm) ;
= (3.14) * (20)² * (mm)² * (30 mm) ;
= (3.14) * (20)² * (30) * (mm³) ;
= (3.14) * (400) * (30) * (mm³) ;
= 37, 680 mm³
__________________________________________________
The volume is: "
37, 680 mm³ " ;
→ which is:
Answer choice [C]: "
37, 680 mm³ " .
___________________________________________________
Hope this answer and explanation—albeit lengthy—is of some help to you.
Best wishes!
Answer:
$2
Step-by-step explanation:
Let, price of individual child ticket is $x, and price of individual adult ticket is $y.
Now, on Friday we can write an equation is 55x+20y=200....(1).
and on Saturday we can write an equation is 72x+36y=306.....(2).
so, Equation 1: 55x+20y=200
Equation 2: 72x+36y=306
now, we are going to solve both equations.
after solving you will find x=2 and y=4.5
Hence, we can say that the cost of child ticket is $2, and the cost of adult ticket is $4.50.
Answer:
a. 3/5 liters per hour
b .06 hours
Step-by-step explanation:
Change 40 minutes to a fraction of an hour
40 minutes/ 60 minutes = 2/3 hour
It takes 1 2/3 hours to fill the container
Changing to an improper fraction
(3*1+2)/3 = 5/3 hours
We want liters per hour
1 liter per 5/3 hours
1 ÷ 5/3
Copy dot flip
1 * 3/5 = 3/5 liters per hour
Change 100 ml to liters
We know 1000 ml = 1 lt
100 ml * 1 lt/1000 ml = .1 lt
So 100 ml = .1 lts
.1 lt * 3/5 lt per hour
Changing the fraction to a decimal
.1 lt * .6 lt per hour
.06 hours