Each of the two congruent sides of an isosceles triangle is 8 inches less than twice the base.the perimeter of the triangle is 74 inches ,what is the length of the base

Answers

Answer 1
if base is x
congruent side = 2x-8
perimeter=2 congruent sides +base

2(2x-8)+x=74
4x-16+x=74
5x=58
x=11.6

length of the base is 11.6 inches
Answer 2
Final answer:

The length of the base of the isosceles triangle is 18 inches.

Explanation:

Let the length of the base be 'b' inches. According to the given information, each of the congruent sides of the isosceles triangle is 8 inches less than twice the base. So, the length of each congruent side is (2b - 8) inches.

The perimeter of the triangle is the sum of all three sides, which is given as 74 inches. So, we can write the equation:

(2b - 8) + (2b - 8) + b = 74

Simplifying the equation, we get:

5b - 16 = 74

5b = 90

b = 18

Therefore, the length of the base is 18 inches.

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Related Questions

Plz help!I don’t understand

Answers

H is the correct choice.

The diagram means that parallelograms come in two kinds: rectangles and rhombuses.

So,
.. all rhombuses are parallelograms
.. all rectangles are parallelograms
.. no rectangles are rhombuses
This diagram only recognizes parallelograms that are rectangles and rhombuses. There are also other kinds of parallelograms, but those are not shown here.

1.Subtract

5/8 - 1/6
Express your answer in simplest form.


2.Subtract

6/7 - 3/5

A. 3/12



B. 9/35



C. 3/7



D. 3/35


3. Add

5 3/8 + 4 1/4


4. Add


2 5/6 + 3 3/4

Express your answer in simplest form


5. Subtract

3 1/4 - 1 5/8


Please Help ASAP I have to get the done before 10:00

Answers

1. 11/24
2. 9/35
3. 9 5/8
4. 6 7/12
5. 1 5/8
1)11/24
2)B)9/35
3)9 1/8
4)3 1/12
5)dunno, sry

Hope I helped for numbers 1-4! :)

What is 1,289,845 rounded to the nearest ten thousand?

Answers

Final answer:

1,289,845 rounded to the nearest ten thousand is 1,290,000.

Explanation:

To round 1,289,845 to the nearest ten thousand, we need to look at the digit in the ten thousandth place, which is the 8 in this case. If the digit is 5 or greater, we round up, and if it is less than 5, we round down. Since the 8 is greater than 5, we round up. To do this, we keep the digit in the ten thousandth place as it is and change all the digits to the right of it to zeros. Therefore, 1,289,845 rounded to the nearest ten thousand is 1,290,000.

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9u^2^v and which term are like terms?
A.6u^2
B.9uv^2
C.15u^2^v
D.13u^2^v^2

Answers

The correct answer is:  [C]:  " 15u^2^v " .
____________________________________________

there are 5280 feet in a mile. how many feet are in 7/11 of a mile

Answers

Number of feet in a mile multiplied by the percentage (7/11) equals number of feet in the 7/11 portion of a mile.

=5280 * 7/11
=(5280*7)/11
=36,960/11
=3,360 feet in 7/11 mile

Hope this helps! :)
Final answer:

To find the number of feet in 7/11 of a mile, you multiply 5280 (the number of feet in a mile) by 7/11. The answer is 3360 feet.

Explanation:

To calculate how many feet are in 7/11 of a mile, you first have to understand that there are 5280 feet in one mile. If you need to find out the feet in a fraction of a mile, you can multiply this number of feet in one mile by that fraction. In this case, the fraction is 7/11. So, the calculation would go as follows:

5280 feet/mile * 7/11 mile = 3360 feet.

Therefore, 7/11 of a mile is equivalent to 3360 feet.

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Elena always puts 5/12 of the money she makes at work in her savings account. If she made $192 at work, how much money did she put in her savings account?

Answers

5/12 x 192
=80

her saving is $80

If she made $192 at work. Then the amount of money she puts in her savings account will be $80.

What is division?

Division means the separation of something into different parts, sharing of something among different people, places, etc.

Elena always puts 5/12 of the money she makes at work in her savings account. If she made $192 at work.

Then the amount of money she puts in her savings account will be

→ 5/12 x 192

→ 80

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help please really don't understand

Answers

a^2 + b^2 = c^2 (this is the formula for finding the hypotenuse of a right triangle)
All you have to do is plug the values into the formula:
6^2 + 8^2 = c^2
36 + 64 = c^2
100= c^2
Now find the square root of 100, which is 10. So, the missing measure is 10 inches.

Number 8 question please answer

Answers

The perimeter of the top is
.. 2*(1 1/3 +3) = 2*(4 1/3) = 8 2/3 . . . . feet
Then the lateral area is
.. (6 ft)*(8 2/3 ft) = (48 +4) ft^2 = 52 ft^2

The area of the top is
.. (3 ft)*(1 1/3 ft) = (3 +1) ft^2 = 4 ft^2

The total area Fran wants to paint is
.. total area = lateral area + top area
.. = (52 ft^2) + (4 ft^2) = 56 ft^2

Selection C is appropriate.

Express 3/10 + 45/100 as a fraction with denominator 100

Answers

   3/10 + 45/100
= 30/100 + 45/100
= 75/100

What is the value of 83?

Answers

83___________________________

What is the area of this figure? Drag and drop the appropriate number into the box. A = cm² 108 135 189 318 A shape made up of a square with the length measuring 9 centimeters and a height measuring 9 centimeters. There are two equally sized right triangles attached to the square. The base of each triangle measures 9 centimeters. The height of each triangle measures 12 centimeters. The remaining side of each triangle measures 15 centimeters.

Answers

The square will have area
.. (9 cm)^2 = 81 cm^2.

The two triangles together will have area
.. (9 cm)*(12 cm) = 108 cm^2.

The sum of the areas of those three shapes is
.. 81 cm^2 +108 cm^2 = 189 cm^2

Answer:

the answer is 189

Each cube in this rectangular prism is 1 cm3. What is the volume of the rectangular prism? A. 9 cm3 B. 20 cm3 C. 40 cm3 D. 48 cm3

Answers

did this test its c. 40
it's C HOPE IT HELPS

A monument in the shape of a right triangle sits on a rectangular pedestal that is 5 meters high by 11 meters long. The longest side of the triangular monument measures 61 meters. How high off the ground is the top of the monument?

Answers

Answer:

65 meters off the ground.

Step-by-step explanation:

Final answer:

The height of the monument is 9.80 m

Explanation:

To find the height of the monument, we can use the Pythagorean theorem. The rectangle on the pedestal forms a right triangle with the longest side of the monument being the hypotenuse. Let's call the height of the monument 'h'. Using the Pythagorean theorem, we have:

[tex]h^2 = (11^2) - (5^2)[/tex]

[tex]h^2 = 121 - 25[/tex]

[tex]h^2 = 96[/tex]

[tex]h = \sqrt{96[/tex]

h ≈ 9.80 meters

What’s twice the difference of a number and 8 is at least -20 using x as a variable into a inequality please help!!!

Answers

the answer is x-8=20

jerry is 4 years older than hunter the sum of their ages is 24 how old is jerry

Answers

Hunter's age = h
Jerry's age = h + 4
Their ages combined = 24

Let's make an equation:

h + (h + 4) = 24
h + h + 4 = 24
2h + 4 = 24
2h = 20
h = 10

Hunter is 10 years old, and Jerry is 10 + 4, or 14 years old.

Answer:
Jerry is 14.

Solve the system of linear equations by substitution.

x=2y+7
3x−2y=3

Answers

The system of equation
First equation
x = 2y + 7
Second equation
3x - 2y = 3

Substitute x with (2y + 7) in the second equation
3x - 2y = 3
3(2y + 7) - 2y = 3

use distributive property
3(2y) + 3(7) - 2y = 3
6y + 21 - 2y = 3

add like terms
6y - 2y + 21 = 3
4y = 3 - 21
4y = -18
  y = -18/4
  y = -4.5

Substitute y with its value, which is -4.5, in the first equation
x = 2y + 7
x = 2(-4.5) + 7
x = -9 + 7
x = -2

The solution is
(x,y) = (-2, -4.5)

A local pizzeria sold 65 pizzas yesterday. Suppose the number of pizzas sold today was 60. Describe the number of pizzas sold as a percent increase or decrease, rounded to the nearest hundredth. Show your work.

Answers

% change formula=
(Old # - New #)/Old # x 100

65= old number
60= new number

% change= (65-60)/65 x 100
= 5/65 x 100
= 0.0769 x 100
= 7.69% change

ANSWER: There was a 7.69% decrease since the number of pizzas dropped from yesterday to today.

Hope this helped! :)

50 points 3/8 x 54

Answers

3/8 x 54

first multiply 54 and 3 together

54 x 3 = 162

Then divide 162 and 8 together

162/8 = 20.25

20.25 is your answer

hope this helps


1. Describe how the figures are alike.

2. Describe how the figures are different.

Answers

They are all 3D. But they are all different shapes

All figures are in 3-D form. But the base of each polygonal prism is different.

What is Geometry?

One of the first areas of mathematics is geometry, along with maths. It is preoccupied with spatial characteristics including the separation, form, size, and relative placement of objects. A geometer is a mathematician who specializes in shape.

A prism is a solid form that is enclosed by plane faces on all of its sides. A prism has two different kinds of faces. Bases refer to identical top and bottom faces. The name "prism" refers to the form of these bases.

All figures are in 3-D form. And all the figures are polygonal prism.

But the base of each polygonal prism is different.

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A cylinder has a radius of 30 ft and a height of 19 ft. What is the exact surface area of the cylinder?


A.


1200π ft2


B.


1260π ft2


C.


1800π ft2


D.


2940π ft2

Answers

its c or d hope i help

The exact surface area of the cylinder with a radius of 30 ft and height of 19 ft is calculated using the formula 2πr(h + r), resulting in an area of 2940π ft², which matches option D.

To find the exact surface area of a cylinder, we use the formula that states the surface area (SA) is SA = 2πr(h + r), where r is the radius and h is the height of the cylinder. Given that the radius (r) is 30 ft and the height (h) is 19 ft, we plug these values into the formula:

SA = 2π(30)(19 + 30)

SA = 2π30(49)

SA = 60π(49)

SA = 2940π ft²

Therefore, the exact surface area of the cylinder is 2940π square feet, which corresponds to option D.

a number is added to 9. the result is then multiplied by 4 to give a new result of 120. what is the number ?

Answers

Hello there!

A number is added to 9. << Since we don't know the name of the number, we will call it x.

A number is added to 9 = x + 9

Then they say the result is then multiplied by 4 to give a new result of 120.

We need to turn this into an equation.

(x + 9) * 4 = 120

Use the distributive property

(x)(4) + (4)(9) = 120

4x + 36 = 120

Add 36 to both sides

4x + 36 - 36 = 120 - 36

4x = 84

x = 84/4

x = 21

Thus, the number is 21

I hope the details are clear to understand. If you don't understand something, please feel free to leave a comment down bellow...

As always, I am here to help!

Answer:

n=21

Step-by-step explanation:

Ik im late but hopefully it can help other people :)

The equation is :

4(9+n)=120

n+9=120/4

n+9=30

n+9-9=30-9

n=21

Please rate... Thankyou :)

solve the linear system using substitution. SHOW WORK HELP ME PLEASE

Answers

If you look at my imported picture, this might probably help you understand how to solve systems. This shows how to do problem 4, which you can do the same to solve the others using the same strategy. answer to 4 is (1, 4)

Darrel loaned his friend $2500 to help him with his business. If his friend pays Darrel back in 1 year with 15% simple interest, how much will he owe Darrel altogether?

Answers

2,875; 2500 x .15 (15%) = 375; 2,500 + 375 = 2,875 Total

Answer: $2875

Step-by-step explanation:

The formula to calculate the simple interest is given by :-

[tex]S.I.=P\times r\times t[/tex], where P is the principal amount , r is the rate of interest and t is the time period.

Given: Principal amount = $2500

Rate of interest = 15%=0.15

Time period = 1 year

Now, the simple interest gained by Darrel after 1 year will be :-

[tex]S.I.=2500\times 0.15\times 1=\$375[/tex]

Now, the total amount his friend owed altogether= [tex]P+I=2500+375=\$2875[/tex]

The scale on a map is 1:500000

Two towns are 7cm apart on the map

work out the actual distance between the map
Give your answer in kilometres

Answers

1:500000
it mean:
1cm : 500000 cm
(500000×7) cm = 3500000 cm (real distance between the two towns, in cm)
 if
 1 Km = 100000 cm
3500000 /100000 = 35 Km (real distance between the two towns, in Km)
Final answer:

The actual distance between the two towns, considering that they are 7cm apart on a map with a scale of 1:500000, is 35 kilometers.

Explanation:

In the given scenario, you're being asked to find the actual distance between two towns based on their distance on a map, using the map's scale, which is 1:500000. This means 1 cm on the map is equivalent to 500000 cm on the ground.

Since the towns are 7 cm apart on the map, the actual distance on the ground will be 7 (distance on the map) multiplied by 500000 (scale of the map), i.e., 3500000 cm. Since there is 100000 cm in 1 km, you convert the distance to kilometers by dividing by 100000. Hence, the actual distance is 3500000/100000 = 35 km.

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In 2010, the estimated population of Chicago was 2.7×10^6 people. The population of Illinois that same year was about 4.76 times this number.

Which expression shows the approximate population of the state of Illinois in 2010?

Answers

It was about 2,700,000 population.

How I did the problem:


2.7×10^6

2.7 times 10 equals 27. Then I did the other calculations and got:
2,700,000

Hope this helped!

Answer:

1.29 x 10^7 people

Step-by-step explanation:

1.29 x 10^7 people

if you take one 10 minute shower a day, how many gallons of water are used

Answers

Final answer:

If you take a 10-minute shower each day, you would use approximately 25 gallons of water.

Explanation:

The average person in the U.S. uses approximately 100 gallons of water per day, which includes daily activities such as cooking, washing dishes and clothes, flushing the toilet, and bathing. If you take a 10-minute shower each day, you would use a certain amount of water.



To calculate the amount of water used during a 10-minute shower, you would need to know the flow rate of your showerhead. On average, a showerhead has a flow rate of 2.5 gallons per minute. So, multiplying the flow rate by the duration of the shower gives us:



2.5 gallons/minute * 10 minutes = 25 gallons



Therefore, if you take one 10-minute shower a day, you would use approximately 25 gallons of water.

after painting his porch jamil had a 1/4 can of paint left the radius of the can is 8 cm and the height is 20 cm he wants to put the remaining paint into a smaller can with a radius of 5 cm
what does the height of the smaller can need to be to hold all the paint.

Answers

Answer:

The height of small can need to be 12.8 cm to hold all the paint

Step-by-step explanation:

- Jamil had a 1/4 can of paint left

- The radius of the can is 8 cm and its height is 20 cm

- He wants to put the remaining paint into a smaller can with a

 radius of 5 cm

- We need to find the height of the smaller can

- The volume of the paint in the larger can is the same volume of paint

  will put in the smaller can

- Lets find the volume of the paint in the larger can

∵ The volume of the paint in the larger can = 1/4 its volume

∵ The can is shaped a cylinder

∵ Volume the cylinder = πr²h, where r is the radius of it and h its height

∵ r = 8 cm and h = 20 cm

∴ The volume of the paint = [tex]\frac{1}{4}\pi (8)^{2}(20)=320\pi[/tex] cm³

- Same amount of paint will put in the smaller can

∵ r = 5 cm and V = 320π cm³

∴ 320π = π(5)²h

- Divide both sides by π

∴ 320 = 25 h

- divide both sides by 25

∴ h = 12.8 cm

* The height of small can need to be 12.8 cm to hold all the paint

The height of the smaller can need to be to hold all the paint will be 12.8 cm.The term height is frequently used to describe someone's or something's height.

What is the height?

Height is defined as the vertical distance between an object's top and bottom. It is measured in centimeters, millimeters, meters, and other units.

From the given conditions;

The volume of the paint in the larger can is,[tex]\rm V_L[/tex]

The volume of the paint in the smaller can is,[tex]\rm V_S[/tex]

The volume of the cylinder is, V

The radius of the can is,r= 8 cm

The height is,h=20 cm

The volume of the paint in the larger can is found as;

[tex]\rm V_L = \frac{1}{4} V \\\\ V=\pi r^2 h \\\\ V_L= \frac{1}{4} \pi (8)^2 (20) \\\\ V_L = 320 \pi \ cm^3[/tex]

The volume of the larger can is equal to the volume of the smaller can;

[tex]\rm V_S = V_L \\\\ 320 \ \pi \ cm^3=\pi r^2 h \\\\ \pi \ cm^3=\pi (5)^2 h \\\\ 320=25h \\\\ h =12.8 \ cm[/tex]

Hence the height of the smaller can need to be to hold all the paint will be 12.8 cm.

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Alex is adding square-foot tiles on the floor in his laundry room. If the space he wants to fill is 7 feet long and 6 feet wide, how many square-foot tiles will he need to fill the area?
A) 12 tiles
B) 26 tiles
C) 36 tiles
D) 42 tiles

Answers

square foot tiles means that they are 1 x 1 foot tiles
you are given that the room is 7 x 6 feet
that is the area is 42 ft^2
A tile is 1ft^2
so you will need 42 tiles for the room
D.) 42 tiles

Hope this helps

Ryan and his friends flip 4 coins. What is the probability that they will flip 2 heads and 2 tails?

Answers

Two results for each of four coin flips. When ways to perform tasks in series, we multiply. So that is 2×2×2×2
results in total. That is 24
or 16

Wayne is solving a system of linear equations.

y= -3/4x+5
X= -2

To solve this system, he graphed the line y= - 3/4x+5

When Wayne graphs the line x= -2, at which point will he find the solution of this system of linear equations?


Answers

these are the lines. hope you understand that
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