Aaaaaaaaaaaaaaa a aaaaaaaaaaaaaaaaaaa khan academy

Aaaaaaaaaaaaaaa A Aaaaaaaaaaaaaaaaaaa Khan Academy

Answers

Answer 1

Hi again

Answer:

7t=105

Mu walked 15 laps

Answer 2

`$7 * l = $105`

`l = $105 : $7`

`l = 15 (laps)`


Related Questions

HELP PLEASE 10 POINTS AND BRAINLIST FOR ANSWER!
What is the weight of a square if a triangle weighs 4 grams? Explain your reasoning

Answers

Answer:

2 grams

Step-by-step explanation:

One can see that the given diagram is that of a balancing scale, meanig that both sides are equal to each other. Therefore,  if one calls the weight of the triangle (t), then one can form an equation. Keep in mind that it is given that the square weighs (4) grams, and therefore, the square doesn't need a variable representation.

t + 4 + 4 = t + t + t + 4

Simplify,

t + 8 = 3t + 4

Inverse operations,

t + 8 = 3t + 4

   -4          -4

t + 4 = 3t

-t         -t

4 = 2t

/2   /2

2 = t

Answer:

2 grames

Step-by-step explanation:

You want to spend less than $39 at a local fair. Admission is $24 and each ride cost $2.50. At most, how many ride can you go on? Write and solve an inequality to model this situation.

6 rides : 2.50r + 24 < 39
5 rides : 2.50r + 24 < 39
5 rides : 2.50r + 39 < 24
6 rides : 2.50 + 24r > 39

Answers

Answer:

A

Step-by-step explanation:

Answer:

6 rides: 2.50r+24 39

Step-by-step explanation:

6 rides: 2.50r+424 39

This is a riddle for fun What question can you never answer yes to?

Answers

Answer:

are you dead?

Step-by-step explanation:

3/32 in simplest form

Answers

it is already in simplest form.

HELP ... answer correctly pls


Use the expression below to answer the question.


-3/4 x 2/5


Which situation can be modeled by the expression?


A. Zach owes 3/4 of the original price of his car. Each month he pays 2/5 of the original price. How many months will it take Zach to pay off his car?


B. Zach owes 3/4 of the original price of his car. Each month he pays 2/5 of how much he still owes on the car. What fraction of the original price does Zach owe after this month’s payment?


C. Abdi owes Kim 3/4 of a dollar. He needs to borrow more money from Kim. Abdi then borrows 2/5 of how much he owes. By what fraction of a dollar does the amount Abdi owes Kim change?


D. Abdi owes Kim 3/4 of a dollar. He pays her 2/5 of how much he owes. What fraction of a dollar does Kim receive from Abdi?

Answers

Answer:

D.

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

when you have a multiplication of fractions, the multiplication sign always means "of".

in this example, 3/4 × 2/5 means 3/4 of 2/5.

Can someone help me please

Answers

80 because you find the area of the triangle and subtract it from the area of the rectangle to get 80

Plzzzzzz I’m crying helllllllp , literally

Answers

Answer:

1000 x .15 = 150 The car will lose 15% value after the first year which is $150. Subtract 150 from 1000 and the new value would be $850.

5020 x .15 = 753 This car lost 15% after the first year which is $753. Subtract 753 from 5020 and the new value would be $4287.

a parallelogram is shown below. Which equation best represents the formula for the area of the parallelogram?

(yall im failing math and my dad will probs disown me if i get held back just bc im failing one math class, thanks <3)

Answers

The area of a parallelogram is length x height.

The answer would be C. A = 12 • 8

Hunter has 56 chocolate bars. He wants to share them evenly with his 7 friends. How many chocolate bars will Hunter and his friends have?

Answers

Answer:

8 chocolate bars

Step-by-step explanation:

56 / 7 = 8

( / = divide)

Please help!!! Urgent


Which equation can be used to find the nth term of the sequence, an?

3, 15, 75, 375, 1875, ...


an=5⋅0.6n−1

an=5⋅3n−1

an=0.6⋅5n−1

an=3⋅5n−1

Answers

Answer:

D. aₙ = 3*5ⁿ⁻¹

Step-by-step explanation:

Given sequence:

3, 15, 75, 375, 1875, ...

We observe this is a GP with the first term of 3 and common ratio of 5.

Equation for the nth term is:

aₙ = a₁rⁿ⁻¹aₙ = 3*5ⁿ⁻¹

Correct choice is D

The sign shows the price of dog food at a local grocery store. DOG FOOD $3.50 FOR 1 POUND What is the price for 7.5 pounds of dog food?

Answers

Answer:

26.25

Step-by-step explanation:

Multiply the Price by the pound.

Which option is it?

Answers

Answer:

Yes, because the products of means is equal to the product of extreme

Step-by-step explanation:

If Colby walked all three trails in one​ day, how far would he​ walk? Write the answer in meters and in kilometers. LOADING... Click the icon to see the metric units of length. Trail Length Spring Hollow 3 km Brookside 1,800 m Oak Ridge 2 km 200 m Colby would walk nothing ​m, or nothing km.

Answers

Answer:

21

Step-by-step explanation:

Alexandra studied 7 pieces by each modern artist featured in the museum. Each artist has the same number of works in the museum.

Is this sample of the work of the museum's modern artists likely to be biased?

Answers

Answer:

yes probably.

Step-by-step explanation:

2) In the central Sierra Nevada (a mountain range in California), the percent of moisture that falls as snow rather than rain is approximated reasonably well by


f(x) = 86.3 ln x - 680 where x < 8418


where x is the altitude in feet and f(x) is the percent of moisture that falls as snow.


a) Find the domain of this function and interpret the domain in context to the problem. (Show work, interpret your domain using proper units)

Answers

Answer:

[tex]x = [2644,8418)[/tex]

Step-by-step explanation:

Given

[tex]f(x) = 86.3ln\ x - 680[/tex]

[tex]x < 8418[/tex]

Required

The domain of the function

The maximum value of x has been given.

So, the next step is to calculate its minimum value.

Since f(x) represents the % moisture. This value cannot go less than 0.

So, we set f(x) to 0; in order to calculate the minimum of x.

This gives:

[tex]f(x) = 0[/tex]

[tex]86.3ln\ x - 680 = 0[/tex]

Add 680 to both sides

[tex]86.3ln\ x - 680 + 680= 0 + 680[/tex]

[tex]86.3ln\ x = 680[/tex]

Divide both sides by 86.3

[tex]ln\ x = \frac{680}{86.3}[/tex]

[tex]ln\ x = 7.88[/tex]

Take exponent of both sides

[tex]e^{(ln\ x)} = e^{7.88[/tex]

[tex]x = e^{7.88[/tex]

[tex]x = 2644[/tex]

Hence, the domain is:

[tex]x = [2644,8418)[/tex]

or

[tex]2644 \le x< 8418[/tex]

Solve for possible values of x. 3x^2 = 18x

Answers

(0,0) and (6,0)

First we subtract 18x from both sides

3x²-18x=0

Factor out a 3x

3x(x-6)=0

This means that x is either 0 or 6

Answer:

3×^2=3^3

or; same base get canceled so

x^2=3

hence x=√3

A student designed this sculpture. Using the dimensions on the sculpture, find the dimensions of each rectangular prism. Then calculate the volume of each prism.

Answers

Answer:

Prism Y

[tex]Height = 12in[/tex]

[tex]Length = 6in[/tex]

[tex]Width = 4in[/tex]

[tex]Volume = 288in^3[/tex]

Prism Z

[tex]Height = 18in[/tex]

[tex]Length =10in[/tex]

[tex]Width = 10in[/tex]

[tex]Volume = 1800in^3[/tex]

[tex]Total = 2088in^3[/tex]

Step-by-step explanation:

Given

See attachment for sculpture

Solving (a) The dimension and volume of Y

From the attachment

[tex]Height = 18 - 6[/tex]

18 in is the height of Z and 6in represents the length (height) of the unoccupied space by Y

So:

[tex]Height = 12in[/tex]

[tex]Length = 16 - 10[/tex]

16 in is the total length of the sculpture and 10 in represents the length of Z

So:

[tex]Length = 6in[/tex]

[tex]Width = 10 - 6[/tex]

10 in is the width of Z and 6in represents the length (width) of the unoccupied space by Y

So:

[tex]Width = 4in[/tex]

Hence, the dimension of Y is:

[tex]Height = 12in[/tex]

[tex]Length = 6in[/tex]

[tex]Width = 4in[/tex]

Volume is then calculated as:

[tex]Volume = Length * Width * Height[/tex]

[tex]Volume = 12in * 6in * 4in[/tex]

[tex]Volume = 288in^3[/tex]

Solving (b) The dimension and volume of Z

As identified in (a), the dimensions of Z are:

[tex]Height = 18in[/tex]

[tex]Length =10in[/tex]

[tex]Width = 10in[/tex]

Volume is then calculated as:

[tex]Volume = Length * Width * Height[/tex]

[tex]Volume = 18in * 10in * 10in[/tex]

[tex]Volume = 1800in^3[/tex]

Solving (c): Total volume of the sculpture.

To do this, we simply add up the volumes of Y and Z.

So, we have:

[tex]Total = 288in^3 + 1800in^3[/tex]

[tex]Total = 2088in^3[/tex]

What is the slope of (-6, 1) and (2,5)?

Answers

Answer:

1/2

Step-by-step explanation:

To find the slope given two points, use the slope formula

m= ( y2-y1)/(x2-x1)

   = ( 5-1)/(2--6)

    = (5-1)/(2+6)

    = 4/8

    = 1/2

Answer:

slope = [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 6, 1) and (x₂, y₂ ) = (2, 5)

m = [tex]\frac{5-1}{2+6}[/tex] = [tex]\frac{4}{8}[/tex] = [tex]\frac{1}{2}[/tex]

4/5 x 3/4

please do the steps!!!

Answers

Answer:

0.6

Step-by-step explanation:

4/5 x 3/4= 0.6

WILL GIVE BRAINLIEST IF RIGHT!!

Which line has a greater unit rate?

A) Chad

B) Noel

C) Same unit rate

Answers

Answer:

Chad cuz it has more slope

Step-by-step explanation:

Hope it helps! :)

Answer:

Chad

Step-by-step explanation:

The steeper a line is the greater the rate of change is.

Chad has a rate of 7 workout hours per day while Noel has a rate of 1 workout hour per day. 7 is greater than 1 meaning that Chad has a greater unit rate.

Natalie walked 3/5mile in 1/2 hour. How fast did she walk, in miles per hour?

Answers

Answer:

6/5 miles

Step-by-step explanation:

2 of 1/2 hour makes an hour.

1/2 hour = 3/5 miles

1 hour = 3/5 x 2 = 6/5 miles

Answer:

6/5 mph

Step-by-step explanation:

If she walks 3/5 miles in half an hour, she will walk 6/5 miles in an hour

The distance from the roller coaster to the food court on the map is 3.5 centimeters. If the scale on the map is 1 centimeter = 10 meters then find the actual distance to the food court?

Answers

Answer:

35 meters

Step-by-step explanation:

Since 1cm=10meters, we can do 3.5cm=how many meters?

To get from 1 to 10 we multiply by 10.

So we can do 3.5x10 to get 35 meters.

Hope this helps!

Prove: The square of a number that is two more than a multiple of 3 is one more than a multiple of 3.

Answers

Answer:

To prove:

(3x + 2)² is  3y + 1

Expand the square:

9x² + 6x + 4 = (9x² + 6x + 3) + 1 = 3(3x² + 2x + 1)  + 1 = 3y + 1Proven

Answer:

9,12,4                          9,12,3,1          3,3,4,1

Step-by-step explanation:

Ariana shaded parts of the hundredths model below to represent the product of two numbers . Which equation does the model represent?

Answers

Answer:

[tex]0.4 * 0.8 = 0.32[/tex]

Step-by-step explanation:

Given

See attachment for model

Required

The equation of the model

Let the vertical and the horizontal shades be represented as x and y

On the vertical axis, 40 boxes are shaded.

So;

[tex]x = \frac{40}{100}[/tex]

On the horizontal axis, 80 boxes are shaded.

So;

[tex]y = \frac{80}{100}[/tex]

So, the equation is:

[tex]x * y[/tex]

This gives:

[tex]\frac{40}{100} * \frac{80}{100}[/tex]

Express as decimal

[tex]0.4 * 0.8[/tex]

Solve:

[tex]0.4 * 0.8 = 0.32[/tex]

Hence, the equation is:

[tex]0.4 * 0.8 = 0.32[/tex]

use the table to locate the location with the greatest amount of rain and the location with the least amount of rain. What is the ratio of their rainfalls, respectively?
ratio= ___
the amount of rain on Mt. Waialeale is___ times as much as the amount of rain in ___
WILL MARK BRAINLYEST

Answers

Answer:

can you show us the table?

Step-by-step explanation:

Help me prettyyyy please

Answers

Answer:

Hii! Surface area= 207.35, volume= 226.19. Hope this helps!

Answer:

Surface area: 66[tex]\pi[/tex] decimal form 207.35

Volume: 72pi or 226.195

Step-by-step explanation:

3x + 5 = 5x - 29

Solve these for X.

Answers

Answer:

x=17!

Step-by-step explanation:

3x+5=5x-29

5=2x-29

34=2x

Therefore x=17!

Answer:

x = 17

Step-by-step explanation:

Lets start evaluating

3x + 5 = 5x - 29

3x + 5 + 29 = 5x

3x + 34 = 5x

34 = 5x - 3x

34 = 2x

x = 34/2

x = 17

If my answer is incorrect, pls correct me!

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

-Chetan K

How long will it take for a $5000 investment to grow to $ 7945 at an annual rate of 8.6%, compounded semiannually? Assume
that no withdrawals are made.
Do not round any intermediate computations, and round your answer to the nearest hundredth.

Answers

Answer:

5.5 years

Step-by-step explanation:

Compound interest formula:

[tex]AV=PV(1+\frac{i}{n})^{n*t}\\7945=5000(1+\frac{.086}{2})^{2t}\\1.589=1.043^{2t}\\log_{1.043}1.589=2t\\10.9998=2t\\5.5=t[/tex]

answer the following

please give steps of how you got your answer

Answers

Answer: x^4

Step-by-step explanation:

1. Rewrite the expression in fraction form:

(3√x²)^6 = x^(2/3)^6

2 is the exponent, so when written in fraction form, it is the numerator. 3 is the index or root, so in fraction form it is the denominator.

2. Solve:

x^(2/3)^6 = x^(12/3) = x^4

Because the exponent 2/3 is raised to the power of 6, you can use the power rule, which basically just means that whenever an exponent is raised to an exponent, multiply them. So, 2/3 * 6 equals 12/3, and 12/3 equals 4, making your answer x^4.

need help anyone help plz im struggling

Answers

Answer:

Step-by-step explanation:

1

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