express fractions below having equal denominators: a) 2/5, 7/10, 9/40. b) 17/25, 23/40, 67/120​

Answers

Answer 1

Answer:

Step-by-step explanation:

a) 5 = 5

10 = 2 * 5

40 = 2 * 2 * 2 *5

Least common denominator = 2*2*2*5=40

Now find equal fractions with denominator 40

[tex]\frac{2}{5}=\frac{2*8}{5*8}=\frac{16}{40}\\\\\frac{7}{10}=\frac{7*4}{10*4}=\frac{28}{40}\\\\\frac{9}{40}[/tex]

Fractions with equal denominators:

[tex]\frac{16}{40} ; \frac{28}{40} ; \frac{9}{40}[/tex]

b) 25 = 5* 5

40 =  2 * 2 * 2 * 5

120 = 2 * 2 * 2 * 3 * 5

Least common denominator = 8*25*3=600

[tex]\frac{17}{25}=\frac{17*24}{25*24}=\frac{408}{600}\\\\\frac{23}{40}=\frac{23*15}{40*15}=\frac{345}{600}\\\\\frac{67}{120}=\frac{67*5}{120*5}=\frac{335}{600}\\\\[/tex]


Related Questions

which inequalities are truth, select the 4 correct answers.​

Answers

Answer:

square the number in the middle to solve

it's easier than calculating the roots

1) true

2) true

3) false (obviously)

4) false (3² = 9, not less than 9)

5) true

6) true

Answer:

Step-by-step explanation:

True 2.23<2.3<2.44

True 2.23<2.4<2.44

True

False 2.82<3<3

True 2.82<2.9<3

False 2<4.5<2.23

#42 urgent please be certain

Answers

Answer:

Its D

Step-by-step explanation:

A mattress store in Stafford purchased a mattress at a cost of $255 and marked it up 100%. Later on, Cassie bought the mattress. If the sales tax in Stafford is 11%, how much did she pay in all?

Answers

Answer: 278.18

sorry if it's wrong

Step-by-step explanation: if you divide 255 by 11 you get 23.18181818181

so if you simplify you get 23.18 so that is the tax plus the original payment which is 278.18

Answer: The correct answer is $566.10

Step-by-step explanation: IXL

how do i solve this

it’s geometry

Answers

Answer:

x=5, y=11

Step-by-step explanation:

> sum of interior angles of a polygon is (n-2)·180°, where n-is the number of sides, so our rhombus has sum of angles =(4-2)·180° =360°

>we know that the opposite angles are congruent so ...

>we have the sum of interior angles is

108+108+7y-5+7y-5 = 360, combine like terms

14y +206 =360, subtract 206 from both sides

14y = 154, divide both sides by 14

y= 11

>the sides are congruent therefore

4x+17 = 8x-3 , subtract 4x, and add 3 from both sides

17+3 =8x-4x, combine like terms

20 = 4x , divide by 4 both sides

5 =x

129x-33=112


solve for x

Answers

Answer:

x =145/129

Step-by-step explanation:

129x-33=112

Add 33 to each side

129x-33+33=112+33

129x = 145

Divide each side by 129

129x/129 = 145/129

x =145/129

can someone help me?

(2x+8)(2x+2)

Answers

This is what I got :) I hope this helps

[tex] 4 {x}^{2} + 20x + 16[/tex]

Step-by-step explanation:

[tex](2x + 8)(2x + 2) \\ = 2x(2x + 2) + 8(2x + 2) \\ = 4 {x}^{2} + 4x + 16x + 16 \\ = 4 {x}^{2} + 20x + 16[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]

What is 9v-8(10v-9) I need an answer

Answers

Your answer is -71v+72 that is the answer

What is the role that by subscribe to translation ABC D

Answers

Answer:

The role of ABCD is two determine the points of the figure.

5. Evaluate the quadratic function f(x) = 5(x-3)(x-2) when x = 9​

Answers

Answer:

Step-by-step explanation:

f(9)=5(9-3)(9-2)

=5*6*7

=210

Answer:

f(9) = 210

Step-by-step explanation:

In f(x) = 5(x-3)(x-2), replace each instance of x with 9:

f(9) = 5(9-3)(9-2), or:

       =5(6)(7) = 210

Find the volume of the sphere. Round your answer to the nearest tenth. Radius is 12ft

Answers

Answer: 7238.2[tex]ft^3[/tex]

Step-by-step explanation:

The formula for a sphere's volume is  [tex]V=\frac{4}{3} \pi r^3[/tex].

Substitute r = 12 in the formula: [tex]V=\frac{4}{3} \pi (12)^3[/tex]

Then calculate (type the right side of the equation above in your calculator), and you will get an answer of 2304π. When you simplify further, you get 7238.22947. Rounded to the nearest tenth, it is 7238.2.

∴, the volume of the sphere is 7238.2[tex]ft^3[/tex], to the nearest tenth.

*note: it's [tex]ft^3[/tex] (feet cubed) because a sphere is a 3D object, so its volume is also a 3D measurement.

Please help me
Look at the image

Answers

Answer:

74 degrees

Step-by-step explanation:

As sum of interior and exterior at a vertex add to 180, subtract 106 from 180 to get 74 degrees

Hellopoooopppoo
Quickkkkkkkkkkkkkkk

Answers

Answer:

4.5 units

Step-by-step explanation:

PQ transferred to WX, and QR to XY.

PQ = 4, WX = 6, so the scaling factor x applies so that we create 6 or of 4 :

4 × x = 6

x = 6/4 = 3/2

the save scaling factor applies now to all other sides too due to the fact that the same transformation was done to the whole shape.

=> QR × 3/2 = XY.

3 × 3/2 = 9/2 = 4.5 = XY

0
Homework Progress
107 / 285
A sequence has three terms.
Its term-to-term rule is
multiply by 6 and then add 13
a) The first term of the sequence is -2
Work out the third term.
b) The order of the three terms of the sequence is reversed.
Describe the term-to-term rule of the new sequence.
Submit Answer​

Answers

Answer:

It's C

Step-by-step explanation: I took the test and got it wrong

The third term of the given sequence exists 19.

Term to term rule when the sequence [tex]$-2,1,19 \ldots .$[/tex] is reversed will be [tex]$\frac{a-13}{6}$[/tex].

What is a sequence?

The sequence exists in a particular order in which connected things follow each other.

The term-to-term rule of the sequence stands 6a+13, where a stands for the first term First-term a = -2

Second term b will be [tex]$-2*6+13=1$[/tex]

The rule for the third term will be 6b+13, where b will be the second term. So the third term will be [tex]$6* 1+13=19$[/tex]

So, the sequence will be [tex]$-2,1,19 \ldots \ldots . .$[/tex]

If the order of the above sequence stands reversed, the new sequence will be [tex]$19,1,-2 \ldots \ldots .$[/tex]

If we subtract 13 from first term 19 and then divide by 6 we will get 1 which stands for the second term of the new sequence [tex]$19,1,-2 \ldots \ldots .$[/tex]

So a new term-to-term sequence rule will be [tex]$\frac{a-13}{6}$[/tex] where a stands for the first term.

Therefore, the third term of the given sequence exists 19.

Term to term rule when the sequence [tex]$-2,1,19 \ldots .$[/tex]  exists reversed will be [tex]$\frac{a-13}{6}$[/tex].

To learn more about sequence

https://brainly.com/question/12200498

#SPJ2

1
2
-17
+
X
5
+ 1 = 2
4
= 21

Answers

Answer:

21

Step-by-step explanation:

You got it right.

You are remodeling your kitchen. You've contacted two tiling companies who
gladly told you how long it took their workers to tile a floor of a similar size.
Jim completed half the floor in 9 hours. Pete completed the other half of the
floor in 5 hours. If Pete can lay 35 more tiles per hour than Jim, what equation
would you use to find the rate that Jim can lay tiles? Let x represent Jim's
rate.
A. 5x - 9(x-36)
B. 5x - 91% +35)
C. 9x - 5(x-36)
D. 9x - 5(x +35)

Answers

Answer:

The correct answer would be D

9x=5(x=35)

Step-by-step explanation:

If this doesn't help I can fix it. I'm sorry in advance if it is incorrect.

-7a + 2b - 3a - 3c what is it

Answers

Answer:

-10a + 2b - 3c

Step-by-step explanation:

hope this helps :)

find the value of x.

Answers

Answer:

139 degrees

Step-by-step explanation:

we only have a central angle here (angle at the center of the circle).

and that angle remains the same along these 2 lines all the way out to the circle arc (and beyond, wherever these 2 lines take us).

so, if there is nothing missing in this graph, then x is the same as the inner angle : 139 degrees

Here is a picture of three towers.
Not all the cubes can be seen in the towers.



Edith uses 1 cube to build tower 1.
Edith uses 6 cubes to build tower 2. There are 5 cubes on the bottom layer.

The sequence below shows the number of cubes used for the bottom layer of each tower.

Answers

Answer:

nth term = the previous number times 4(x-1)

Step-by-step explanation:

As you see the first tower has 1 then it is 5 for the next tower and then it is 13 for the next tower and then 25. Well this means that as you see, the expressions adds 4 to the previous 4 and then adds to the tower. Let me show you how it works.

Tower 1: 1

Tower 2: 1 + 4 = 5

tower 3 : 5 + 8 = 13

tower 4: 13 + 12 = 25

tower 5: 25 +16 = 41

a rectangle is 12 feet long and 5 feet wide. if the length of the rectangle is increased by 25% and the width is decreased by 20% what is the change in the area of the rectangle

Answers

Answer:

60% decrease in area

Step-by-step explanation:

12 x5 == 60 sq feet (original area)

9 x 4 == 36 sq feet (new area)

36/60 = 6/10 = 60%

In the diagram, MN is tangent to K at M, NP is tangent to K at P, MN = 128 and NP = 2x + 70. Find x

SHOW YOUR WORK

Answers

Answer:

A

Step-by-step explanation:

Tangents that are both tangent to a same point equal each other. sk

[tex]2x + 70 = 128[/tex]

[tex]2x = 58[/tex]

[tex]x = 29[/tex]

Find the surface area

Answers

Answer:

352 m

Step-by-step explanation:

The area of a trapeze is (the biggest base + the smallest base) × height / 2

The area from rectangles are side a × side b

Trapeze: (6+12)×4/2 = 36

Rectangles: 5 × 10 = 50

6 × 10 = 60

12 × 10 = 120

There are two trapeze andtwo rectangles with the samesize, so you double their area:

2×36 + 2 × 50 + 60 + 120 = 352 m

A glass marble has a diameter of 16 millimeters. What is the approximate volume of the marble? Use 3.14 for

Answers

Answer:

The volume would be approximately 2143.573333...

The cost of 2 pounds
of coffee is $0.
True or False

Answers

Answer:

false

Step-by-step explanation:

the graph shows that 2 pounds of coffee would be about $4

Answer:

false.

Step-by-step explanation:

because if you look 1 pounds is 2 dollars

Solve the following inequality. 21 ≤ -3(x − 4) < 30 A. 28 ≤ x < 37 B. -10 < x ≤ -3 C. -6 < x ≤ -3 D. -3 ≤ x < 6

Answers

Step-by-step explanation:

21 ≤ -3(x − 4) < 30

=> devided by (-3)

-7 ≥ x-4 > -10

=> added by 4

-3 ≥ x > -6

the result : -6 < x -3 (option C)

The cost of 12 shirts is 84 find the cost of 6 shirts

Answers

Answer:

ok so 6 is half of 12 so we have to find half or 84 which is

42

Hope This Helps!!!

Answer: The answer is 42.

84/2= 42. May I have the brainiest?

Calculate the circumference of a circle with a radius of 14 cm.

Answers

Answer:

Step-by-step explanation:

circumference of a circle=2πr

=2*3.14*14

=28*3.14

=87.92 cm

Darius is studying the relationship between mathematics and art. He asks friends to each draw a "typical” rectangle. He measures the length and width in centimeters of each rectangle and plots the points on a graph, where x represents the width and y represents the length. The points representing the rectangles are (6.1, 12.0), (5.0, 8.1), (9.1, 15.2), (6.5, 10.2), (7.4, 11.3), and (10.9, 17.5). Which equation could Darius use to determine the length, in centimeters, of a "typical” rectangle for a given width in centimeters?

y = 0.605x + 0.004
y = 0.959x + 0.041
y = 1.518x + 0.995
y = 1.967x + 0.984

Answers

Answer:

its the 4th one

Step-by-step explanation:

Answer:

the answer is C y=1.518x+0.995

Step-by-step explanation:

can someone help will mark brainliest​

Answers

Answer:

$60

Step-by-step explanation:

x - 15 = 45

x = 15 + 45

x = 60

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

45+15= 60

$60 is how much the original value was.

Hope this helped!

What is the value of x^2/y^1 when x=10 and y=5?

Answers

The value is 20. 10^2 = 100 and 5^1 = 5. 100/5=20

Fill in the blanks below in order to justify whether or not the mapping shown represents a function

Answers

Answer:

not a function because -3 maps to two different values 5 and 6

Step-by-step explanation:

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