Julio walks 3 1/2miles in 1 1/4hours

Answers

Answer 1

Answer: So, you have to turn the fractions into decimals so..
3 1/2 = 3.5
1 1/4 = 1.25
Then divide and you'll get 2.8.

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0.4(2x-9)-0.6(4x+5)=
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Write the greatest whole number that uses all the digits from 1 to 9.

Answers

we know that

The way to form the greatest number is to use the highest valued digit in the most significant digit.

$900,000,000+80,000,000+7,000,000+600,000+50,000+4,000+300+20+1=987,654,321$

therefore

the answer is

The greatest whole number that uses all the digits from 1 to 9 only at once is

$987,654,321$

987,654,321 would be the greatest WHOLE number using the digits 1-9 only once i assume

Ms. Burger has graded 45 tests. This represents 60% of her 3 math classes. How many math students does Ms. Burger teach?

Answers

To find answers like this, you have to divide the percentage into the number given so:
45 / .60 = 75
She teaches 75 math students

- - To start off you are going to divide:

60%=0.60 (.60)

$(45)/(.60) =75$

Therefore 75 is your final answer.

Is a ice cube a polygon? why or why not?

Answers

No, because it is a cube shape and all shapes with four sides are polygons, and a ice cube is oblong /cuboid and it has 12 edges and 6 side.
hope I helped :)
also for more marks you could say that when ans ice cube melts it transfers into a different shape causing it to be a liquid, therefore if it was put in a polygon container, the water would be a ploygon

A Polygon is a two dimensional figure that can be drawn on a flat surface.A cube is a three dimensional figure that can be sculpted in three dimensions but can only have projections of it drawn on a flat surface.So a cube is not a polygon.

In a water treatment plant, water passes through a cone-shaped filter with a height of 4 m and a diameter of 9 m. The water flows from the filter into a cylinder below it. One full cone-shaped filter fills one-fifth of the cylinder.What are the dimensions of the cylinder? Use 3.14 to approximate pi.

A.
h = 3 m; r = 3 m

B.
h = 4.23 m; r = 5 m

C.
h = 15 m; r = 6 m

D.
h = 33.75 m; r = 2 m

Answers

so volume of a cone=1/3 times (area of base) times height

area of base=circle so
1/3 times pi times radius^2 times height

height=4
diameter=2radius
diameter/2=radius
9/2=4.5=radius

height=4
radius=4.5
aprox pi at 3.14
1/3 times (3.14 times 4.5^2) times 4=84.78
that's the volume of the cone

volume of cone=1/5 of cylinder

84.78=1/5cylinder
multiply both sdies by 5
423.9=volume of cylinder

volume of cylinder=height times area of base
area of base=3.14 times r^2
v=h3.14r^2
423.9=3.14hr^2
divide both sdies by 3.14
135=hr^2
sincewe are not given the specific ratio of height to radius or such to thecone to the cylinder, we must use trial and error to elimninate wrongchoices

135=hr^2
let's try A

A
135=3(3^3)
135=3(9)
135=27
false
A is wrong

B
4.23=h 5=r
135=4.23 times 5^2
135=4.23 times 25
135=105.75
false
B is wrong

C
h=15 r=6
135=15 times 6^2
135=15 times 36
135=540
false
C is wrong

D
33.75=h 2=r
135=33.75 times 2^2
135=33.75 times 4
135=135

the answer is D since it fitst the dimentions

$(9/2*9/2*4* \pi )/(3)$
= $(81*3.14 )/(3)$
=27*3.14 (the cone's v)
so multiply 5 to the v = 135*3.14 (cylinder's v)
A:3*3*3*3.14=27*3.14 X
B:5*5*4.23*3.14=105.75*3.14 X
C:6*6*15*3.14=540*3.14 X
D:2*2*33.75*3.14=135*3.14 O
Answer: is .....D
:)

Here are the vertices of rectangle FROG: (-2,5),(-2,1),(6,5),(6,1). Find the perimeter of this rectangle. If you get stuck, try plotting the points on a coordinate plane. For the rectangle FROG, the perimeter is . Find the area of the rectangle FROG. For the rectangle FROG, the area is

Answers

The area and the perimeter of the rectangle FROG is evaluated as:

Area(FROG) = $32 \: \rm unit^2$
Perimeter(FROG) = $64\: \rm units$

How to find the area and the perimeter of a rectangle?

For a rectangle with length and width L and W units, we get:

Area of the rectangle = $L * W \: \rm unit^2$
Perimeter of the rectangle = $2(L + W) \: \rm unit^2$

What is the distance between two points ( p,q) and (x,y)?

The shortest distance(straight line segment's length connecting both given points) between points ( p,q) and (x,y) is:

$D = √((x-p)^2 + (y-q)^2) \: \rm units.$

The coordinates of the points of the rectangle FROG are given as:

F(-2,5), R(-2,1), G(6,5), and O(6,1) (from its plot, as given below)

FR and RO are length and width pair(we can call any one of them as length and other as width) of the considered rectangle as they are adjacent to each other.

We denote length of a line segment AB by |AB|

Thus, we get:

Length of the rectangle = |FR| = $√((-2-(-2))^2 + (1 - 5)^2 ) = 4$ units
Width of the rectangle = |RO| = $√((6-(-2))^2 + (1 - 1)^2 ) = √(64) = 8 \: \rm units$

Now with the help of length and width, we can evaluate its perimeter and area, as shown below:

Area(FROG) = $L* W = 4 * 8= 32 \: \rm unit^2$
Perimeter(FROG) = $2(L + W) = 2(4 + 8) = 64\: \rm units$

Learn more about distance between two points here:

brainly.com/question/16410393

Answer:

Part 1) The perimeter of rectangle is equal to 24 units

Part 2) The area of rectangle is equal to 32 square units

Step-by-step explanation:

Part 1) Find the perimeter of rectangle

we know that

The perimeter of rectangle is equal to

$P=2(L+W)$

where

L is the length of rectangle

W is the width of rectangle

we have

$F(-2,5),R(-2,1),O(6,1),G(6,5)$

Plot the figure to better understand the problem

using a graphing tool

see the attached figure

Remember that in a rectangle opposite sides are congruent and the measure of each interior angle is equal to 90 degrees

$FG=RO=L\nRF=OG=W$

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^(2)+(x2-x1)^(2)}$

step 1

Find the distance FG

$F(-2,5),G(6,5)$

substitute the values

$d=\sqrt{(5-5)^(2)+(6+2)^(2)}$

$d=\sqrt{(0)^(2)+(8)^(2)}$

$FG=8\ units$

step 2

Find the distance RF

$R(-2,1),F(-2,5)$

substitute the values

$d=\sqrt{(5-1)^(2)+(-2+2)^(2)}$

$d=\sqrt{(4)^(2)+(0)^(2)}$

$RF=4\ units$

step 3

Find the perimeter

$P=2(L+W)$

we have

$FG=RO=L=8\ units\nRF=OG=W=4\ units$

substitute

$P=2(8+4)=24\ units$

Part 2) Find the area of rectangle FROG

we know that

The area of rectangle is equal to

$A=LW$

we have

$FG=RO=L=8\ units\nRF=OG=W=4\ units$

substitute

$A=(8)(4)=32\ units^2$

Multiply. Simplify your answer and write it as a proper fraction or as a whole or mixed number.35 × 1 1/2 =

Answers

do 35/1 and then make 1 1/2 into an improper fraction (which is 3/2) and you do 35/1 * 3/2 you should get 105/2 and then make it into an mixed fraction.

$35*1 (1)/(2) =35*(3)/(2)=(3*35)/(2)=(105)/(2)=52(1)/(2)$ or $52.5$

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