Explain why 4 x 2/5 is the same operation as 2/5 + 2/5 +2/5 + 2/5

Answers

Answer 1

Answer:

Step-by-step explanation: Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(8, 5)=1. In the next intermediate step the fraction result cannot be further simplified by cancelling. In words - four multiplied by two fifths=eight fifths.


Related Questions

Use the tape diagram below to help visualize 1/3 being devided by 5

Answers

Answer:

Step-by-step explanation:

Reduce the expression, if possible, by cancelling the common factors.

Exact Form:

1/15

Decimal Form:

0.06

A pollster surveys 80 people to determine whether they will vote for Seth Gleason for mayor. 42 out of 80 say yes. What is the experimental probability that the next person surveyed will say he or she plans to vote for Seth Gleason?

Answers

Answer:

42 out of 80

Step-by-step explanation:

Given function:

surveys 80 people42 votedto find the experimental probability that the next person surveyed say yes or no..

Thinks:

42 out of 80 means 42:80 in ratio formif 42:80  that they’ll vote for Seth Gleason then this means that the next person have 42:80 chance to vote for Seth Gleaso...

Forms:

0.525 42/80.. simplify form=21/40. 52.5%

Therefore, the percentage the next person would vote for Seth Gleason is a percentage of 52.5% and also have a ratio of 42:80.

If 12 was added to one-third of a certain number to get 35. What is this number? *

Answers

12+(1/3)x=35
(1/3)x=23
x=7.6666

Solve the two-step equation.

-0.45x + 0.33 = -0.66

What is the solution?
x = -2.2
x = -1.4
x = 1.4
x = 2.2

Answers

The correct answer is the last one x= 2.2 :)

Answer:

x = 2.2

Step-by-step explanation:

-0.45x + 0.33 = -0.66

-0.45x = -0.99

x = 2.2

Brainly plz :))

If two cylinders are similar and the ratio between the altitude lengths is 2:3,
what is the ratio of their volumes?
A. 16:27
B. 1:3
C. 8:27
D. 4:9

Answers

Answer:

8:27

Step-by-step explanation:

on ape x

The ratio of their volumes is 8:27.

We have given that,

If two cylinders are similar and the ratio between the altitude lengths is 2:3.

We have to determine the ratio of their volumes.

What are the volumes?

Volume is a scalar quantity expressing the amount of three-dimensional space enclosed by a closed surface.

Therefore the ratio of their volume is 8:27

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I need the answer ASAP
-7+7=

Answers

Answer: 0

Trust me it is 0
0 would be your answer because negative seven and positive seven cancel each other out, leaving you with zero as your answer.

Expand and simplity-(x-5)-(2x+7)

Answers

Answer:

-3x - 2

Step-by-step explanation:

-(x - 5) ⇒ -x + 5

-(2x + 7) ⇒ -2x - 7

-x + 5 - 2x - 7 ⇒ -3x - 2

multiply by sign:-x+5-2x-7

collect like term:-x-2x+5-7

simplify:-3x-2

so finally the answer is -3x-2

PLEASE HELP WILL MAKE BRAINILEST ALSO PLEASE SHOW UR WORK TYSM
Bev has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area of the polygon. Be sure to show all your work and explain your answer.

Six-sided polygon that includes two isosceles right triangles, one with height and base of 15 feet, the other height and base of 4 feet, and one rectangle measuring 25 feet by 4 feet.

Answers

Given : Bev has to cut her grandma's grass this weekend

Six-sided polygon that includes two isosceles right triangles, one with height and base of 15 feet, the other height and base of 4 feet, and one rectangle measuring 25 feet by 4 feet.

To Find : Area of Polygon

Solution:

Area of triangle = (1/2) bh

= (1/2) * 15 * 15

= 112.5   sq feet

= (1/2) * 4 * 4

=  8   sq feet

Area of rectangle = 25 x 4 = 100   sq feet

Total area =112.5 +  8  + 100

= 220.5 sq feet

Area of Polygon = 220.5 sq feet

220.5 is the answer

PLEASE HELP!!!
A ladder leans against a brick wall. The foot of the ladder is 6 feet from the wall. The ladder reaches a height of 15 feet on the wall. Find to the nearest tenth, the angle the ladder makes with the wall. Show Work..

Answers

Answer and Step-by-step explanation:

Answer is in picture.

We have to use the trig function Tangent, noted as tan.

Tan uses opposite over adjacent sides.

then, to get x by itself, you do [tex]tan^{-1}[/tex] (tan^-1)

#teamtrees #PAW (Plant And Water)

What is the area formula for a rectangle?


A: A = (1/2)bh; Area = (1/2) x base x height

B: A= (1/2)(b1 + b2)h; Area = (1/2) x (base1 + base2) x height

C: A = bh; Area base x height

D: A = a^2; Area = side x side

Answers

The answer is D. The same also applies for a square fam. Length x width
It’s c a=b•h which is a equals base times height

Solve for x. Enter the solutions from least to greatest.
x2 + 16x + 63 = 0
lesser x =
greater x =

Answers

Answer: less= -9.41

Greater= -6.59

Step-by-step explanatio. it is

Answer:

Step-by-step explanation:

A triangle has side lengths of 5a +3 inches and 2a +3 inches. If the perimeter of the triangle is 3a + 12 inches, which expression represents the length, in
inches, of the third side of the triangle?

Answers

Answer:

A. 2a+6

Step-by-step explanation:

I did the test and this is what I got.

Find the value of x for which m || n is...

Answers

Answer:

x=51

Step-by-step explanation:

m || n

(3x-40)=(2x+11) by alternate interior angles theorem

3x-2x=40+11

x=51

Find the product of 2/3 and 9/10

Answers

Answer:

3/5

Step-by-step explanation:

PLZ MARK AS BRAINLIEST

To find the product of 2/3 and 9/10, multiply the numerators and denominators together: [tex]\frac{2}{3} * \frac{9}{10} = \frac{18}{30}.[/tex] This simplifies to [tex]\frac{3}{5}[/tex], which is the answer.

Riley used a drawing to divide . He made groups of 12 with 1 left over. Hoy many groups did he make?

Answers

Step-by-step explanation:

Here important information is missing. That is total number of divide.

However, it is given that riley made groups of 12 with 1left over from total number of divide. So, total number of divides on the drawing must be a multiple of 12 +1. It can be any number like 12n+1, where n is an integer. Then we ca find total number of group.  

The admission fee at an amusement park is 1.5 dollars for children and 4 dollars for adults. On a certain
day, 380 people entered the park, and the admission fees collected totaled 1070 dollars. How many
children and how many adults were admitted?
Your answer is
number of children equals
number of adults equals

Answers

C+A=380
C*1.5+A*4=1070

Multiply first equation by 4 and subtract the second equation from the first:

C*2.5=450
C=180
A=200

Weird.....more adults than children at the amusement park?

As Tish and Tan were traveling to their next cross country meet, they followed their progress along on a map. The map showed a scale of one inch equaling 60 miles. Their route’s total length on the map is 2 ½ inches long. How far will they be traveling to the meet? Show all work and justify your answer.

Answers

Answer:

150 miles

Step-by-step explanation:

60 *×2.5= 150 or 60*2= 120+ 30

Write a function, (), which has a maximum and a y-intercept of −3.
PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

Step-by-step explanation:

The graph of a quadratic function is a U-shaped curve called a parabola. One important feature of the graph is that it has an extreme point, called the vertex. If the parabola opens up, the vertex represents the lowest point on the graph, or the minimum value of the quadratic function. If the parabola opens down, the vertex represents the highest point on the graph, or the maximum value. In either case, the vertex is a turning point on the graph. The graph is also symmetric with a vertical line drawn through the vertex, called the axis of symmetry. These features are illustrated in (Figure).

Graph of a parabola showing where the x and y intercepts, vertex, and axis of symmetry are.  

The y-intercept is the point at which the parabola crosses the y-axis. The x-intercepts are the points at which the parabola crosses the x-axis. If they exist, the x-intercepts represent the zeros, or roots, of the quadratic function, the values of x

at which

y = 0  

What is an equation of the line that passes through the point (6,1) and is
perpendicular to the line 2x + 3y 18?

Answers

Answer:

y - 1 = 3/2(x - 6)

Step-by-step explanation:

First, we need to find the slope of the given equation. Without a graph, the easiest way to do this is by isolating y.

2x + 3y = 18

3y = -2x + 18        (Subtract 2x from both sides)

y = -2/3x + 6        (Divide both sides by 3)

The slope is -2/3. Perpendicular lines have opposite reciprocal slopes, so a line perpendicular to this one would need to have a slope of 3/2. We're given a point for this line, so we can write the equation for it in point-slope form.

Point-Slope Form: [tex]y - y_{1}=m (x-x_{1})[/tex]

y - 1 = 3/2(x - 6)

If necessary, this can also be written in slope-intercept form by solving for y.

How many minutes are there in 4
4 1 2
hours?​

Answers

255 minutes

we know that

1 hour = 60 minutes

then according to unitary method

4*1/4 hours = 17/4*60

= 255 minutes

hope it helps

The answer to this question is 270 minutes

Complete the statements about the cone.
The height is units.
The radius is units.
The volume is Tot cubic units.
10
6

Answers

Answer:

The answers are:

The height is 6

The radius is 8

The volume is 128 π cubic units.

Step-by-step explanation:

The height is shown in the picture. So the first answer is 6.

To find the radius, you use the equation. [tex]\sqrt{slant height^{2}- height^{2} }[/tex] = radius

The slant height 10, and the height is 6. So you plug those into the equation and solve.

[tex]\sqrt{10^{2}-6^{2} }[/tex] =

[tex]\sqrt{100-36}[/tex] =

[tex]\sqrt{64}[/tex] = 8

So the radius is 8.

Now we use the equation [tex]\pi[/tex][tex]r^{2}[/tex] [tex]\frac{h}{3}[/tex] = volume.

[tex]\pi[/tex][tex]8^{2}[/tex] [tex]\frac{6}{3}[/tex] =

[tex]\pi[/tex]64 [tex]\frac{6}{3}[/tex] =

[tex]\pi[/tex] 64(2) = 128 [tex]\pi[/tex] cubic units

I hoped this helped you. I would love brainiest.

The statements about the cone is that,

The height is 6 units, the radius is 8 units and the volume is 128π cubic units.

What is Volume?

Volume of a three dimensional shape is the space occupied by the shape.

Given a cone.

We have to find the complete the statements related to the cone.

From the figure,

height of the cone = 6 units

Using the Pythagoras theorem,

Radius of the cone = √(10² - 6²) = 8 units

Volume of the cone = 1/3 π r² h

                                 = 1/3 π × 8² × 6

                                 = 128π cubic units

Hence the height, radius and volume of the cone are 6 units, 8 units and 128π cubic units respectively.

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Tameka borrowed $300 to buy a digital music player she will pay the money back in 1 year at 5%simple interest how much money will tameka pay in interest

Answers

Answer:

$15 in interest

Step-by-step explanation:

sorry if it is wrong. I found 5% of 300 which is 15.

$15  money will tameka pay in interest.

What is interest?

Interest is the price you pay to borrow money or the cost you charge to lend money. Interest is most often reflected as an annual percentage of the amount of a loan. This percentage is known as the interest rate on the loan.

Here, we have,

formula: I = Prt.

here, we get,

given that,

Tameka borrowed $300 to buy a digital music player she will pay the money back in 1 year at 5%simple interest.

P=$300

r=5%

t=1year

so, I =$300*5%*1

       =$15

Hence, $15  money will tameka pay in interest.

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HELPPPPPPPP PLEASEEEEEEE

Answers

Answer:

Angle 8 and angle 16.

Step-by-step explanation:

Number 4 because they are in the same spot. Learn geometry.

Angle 8 and angle 16

Need help ASAP! due soon!!!!

Answers

Answer:

Y=-3/4X+4

Step-by-step explanation:

Bottom to top, if the line is going to the right, it is positive, but if it goes left; negative. look at the Y axis, and where the line crosses is b.

Which is and equation of the line with slope 0 and passing through the point at (-2,3)

Answers

Answer: y = 3

Step-by-step explanation:

Any horizontal line parallel to the x-axis has a zero slope. The horizontal line passing through (-2 ,3) has equation y = 3 as it passes through all points in the plane with a y-coordinate of 3, as may be seen in the graph

4
Shape A can be transformed to shape B by
a reflection in the x-axis followed by a
6
5
translation
4
3
Find the value of c and the value of d.
2
+
C=
(2)
-4
-5
-2
a
-3
- 1
2
4
3
5X
B
d =
(1)
2

-3
4
-6.
Total marks: 3
Type here to search
R:

Answers

Answer:

C=-6

D=2

Step-by-step explanation:

what is 2345678900098765445678 times 23456788853456 have to answer unless you are her

Answers

Answer:

[tex]5.50220947[/tex] × [tex]10^{34}[/tex]

Step-by-step explanation:

Mark as Brainliest

what is this plx help???/?

Answers

Answer:

B) 9 square units

Step-by-step explanation:

Split the shape into a right triangle and a rectangle.

The rectangle is 2 by 3, so multiply 2 x 3 for the area: 6.

The triangle has a height of 3 and a base of 2. Multiply to get 6. Then divide by 2 to get: 3.

Add 6 + 3 to get 9 square units.

Hope it helps!

PLZ HELP PLZ (1a) Use long division to show the fraction and decimal in each pair are equivalent? 3/4 & 0.75. Hint: Divide 3/4.​

Answers

Answer:

3 divided by 4 will equal 0.75 which is equivalent to 0.75. or you can do 6/8 which will also equal 0.75. and 6/8 is equivalent to 3/4. so therefore it's confirmed that 3/4 is equivalent to 0.75

I’m not quite sure what they mean by this so can someone provide the answer AND the step by step solution.

Answers

Answer:

first just choose a team, and then they will ask you questions, try to go for red

Step-by-step explanation:

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