Amanda can jog 18 miles in 5 hours. At this rate, how many miles can Amanda jog in 4 hours?

Answers

Answer 1
18 = x
__ __
5 4
x = 18•4 / 5
72/5 = 14.4 final answer
Answer 2

we know that

Amanda can jog [tex]18[/tex] miles in [tex]5[/tex] hours

so

by proportion

Find the number of miles that Amanda  can jog in [tex]4[/tex] hours

[tex]\frac{18}{5} \frac{miles}{hours} =\frac{x}{4} \frac{miles}{hours} \\ \\5*x=18*4 \\ \\x=72/5 \\ \\ x=14.4\ miles[/tex]

therefore

the answer is

[tex]14.4\ miles[/tex]


Related Questions

When a decimal is written in word form, what indicates that the equivalent form is a mixed number and not a fraction?

Answers

If you are reading a story problem that says one and a half this would indicate the mixed number 11/2 or the decimal 1.5, which are all equivalent.

Melanie and Melissa are sharing the cost of a pizza party. Melanie is buying 2 pizzas for $14.00 each and 3 orders of garlic bread for $4.00 each. Melissa is paying $21.00 for napkins, paper plates, and sodas. She is bringing the dessert which costs $8.00 to make. How much more money is Melanie spending than Melissa?

Answers

Melanie:14+14+4+4+4=40
Melissa:21+8=29
40-29=11
So the answer is $11
14x2=28
4x3=12
28+12=40

21+8=29

40-29=11

How to find the inverse of f(x) = -(3/-x-3) - 2

Answers

so, to get the inverse relation of anything, as you'd already know, we first do a quick switcharoo on the variables, and then solve for "y".

[tex]\bf \stackrel{f(x)}{y}=-\cfrac{3}{-x-3}-2\qquad inverse\implies \boxed{x}=-\cfrac{3}{-\boxed{y}-3}-2 \\\\\\ x+2=\cfrac{3}{-(-y-3)}\implies x+2=\cfrac{3}{y+3}\implies (x+2)(y+3)=3 \\\\\\ xy+3x+2y+6=3\implies xy+2y=3-3x-6 \\\\\\ y(x+2)=-3x-3\implies y=\cfrac{-3x-3}{x+2}\implies \stackrel{f^{-1}(x)}{y}=\cfrac{-3(x+1)}{x+2}[/tex]

The inverse is f⁻¹(x) = -3(x + 1)/(x + 2).

To find the inverse of the given function f(x), follow these steps:

Replace f(x) with y: y = -(3/(-x-3)) - 2Swap x and y to start finding the inverse: x = -(3/(-y - 3)) - 2Isolate the term with y: x + 2 = -(3/(-y - 3))Multiply both sides by (-y - 3) to get: (x + 2)(-y - 3) = -3Distribute x + 2: -xy - 3x - 2y - 6 = -3Collect y terms on one side: -xy - 2y = 3x + 3Factor out y: y(-x - 2) = 3(x + 1)Solve for y: y = -3(x + 1)/(x + 2)

Thus, the inverse function is f⁻¹(x) = -3(x + 1)/(x + 2).

Mrs. Goldstein pours 3 juice boxes into a bowl to make fruit punch. Each juice box holds 236 millimeters. How much juice does Mrs. Goldstein pour into the bowl ?

Answers

708 Milliliters 236x3=708 and the unit is mls so he poured 708 milliters of juice or 0.708 liters

708 millimeters of juice Mrs. Goldstein pour into the bowl.

Given that, Mrs. Goldstein pours 3 juice boxes into a bowl to make fruit punch. Each juice box holds 236 millimeters.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the quantity of juice Mrs. Goldstein pour into the bowl be x millimeters.

Now, x=236 × 3

⇒ x = 708 millimeters

Therefore, 708 millimeters of juice Mrs. Goldstein pour into the bowl.

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A giraffes hunger level depends on the size of its last meal. What is the independent and dependent variable

Answers

the independent will be the the size of the meal and the dependent will be the hunger level.

What is 0.16666666666 as a simplified fraction

Answers

The answer to your Question is 1/6

Answer:

[tex]0.16666666666=\frac{16666666666}{100000000000}[/tex]            

Step-by-step explanation:

Given : Expression 0.16666666666.

To find : What is expression as a simplified fraction ?

Solution :

Expression 0.16666666666.

We have to remove decimal to convert into fraction,

By multiplying and divide by 10,

[tex]0.16666666666=\frac{0.16666666666\times 10}{10}[/tex]

[tex]0.16666666666=1.6666666666[/tex]

Similar approach we get,

[tex]0.16666666666=\frac{16666666666}{100000000000}[/tex]

What is 905 in unit form?

Answers

9 hundreds, 0 tens, 5 ones
Final answer:

The unit form of 905 is 900 + 0 + 5. This represents 900 hundreds, 0 tens, and 5 ones.

Explanation:

The number 905 in unit form can be written as 900 + 0 + 5. In other words, it represents 900 hundreds, 0 tens, and 5 ones. Writing numbers in unit form helps you see the value of each digit. For example, in the number 905, the 9 is in the hundreds place, giving it a value of 900, the 0 is in the tens place, giving it a value of 0, and the 5 is in the ones place, giving it a value of 5. Therefore, the unit form of 905 is 900 + 0 + 5.

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If f(x)=square root of 2-x and g(x)=x-1, then find the domain of h(x)=f(x)/g(x)

Answers

Let's examine what the conditions on the domains of f and g have to be before we examine h. Since f is defined:

[tex]f(x)= \sqrt{2-x} [/tex], we know that the function will be undefined when 2 - x < 0, or when x > 2, so we have the restriction on our domain that x ≥ 0.

g(x) has no such restrictions and is defined for all possible values of x, so its domain is all real numbers, or [tex]\mathbb{R}[/tex]. 

Since h(x) is a rational function, we know that it's undefined when its denominator is 0. In this case, our denominator is g(x), so the function is undefined when g(x)=0. x - 1 = 0 only when x = 1, so the second restriction on our domain for h is that x ≠ 1. Putting those two together, we find that the domain of h(x) is all values of x ≥ 0, where x ≠ 1.

Answer:

Domain of h(x) : [2,∞)

Step-by-step explanation:

Given: Two functions

[tex]f(x)=\sqrt{2-x}[/tex]

[tex]g(x)=x-1[/tex]

Composite function, [tex]h(x)=\dfrac{f(x)}{g(x)}[/tex]

[tex]f(x)=\sqrt{2-x}[/tex], It is square root function. As we know square root function is always greater than 0.

2-x ≥ 0

  2 ≥ x

Domain of f(x) : [2,∞)

[tex]g(x)=x-1[/tex], It is straight line equation (Linear function) As we know domain of linear function is all real number.

Domain of g(x) : (-∞,∞)

[tex]h(x)=\dfrac{f(x)}{g(x)}[/tex]

[tex]h(x)=\dfrac{\sqrt{2-x}}{x-1}[/tex] , It is rational function. Denominator can't be zero.

So, x-1 ≠ 0

        x ≠ 1

Now, we will see domain of h(x) common all three domain.

Domain of h(x): [2,∞)

Hence, The domain of h(x) is [2,∞)

Look at all the measurements in model 4. when a number in scientific notation is changed to expanded notation, are any of the added zeros significant

Answers

Yes, the added zeros are significant. Lets say you are converting 1.23 x 10 to the power of 4. The answer would be 12,300 in which case, if you took away the zeros, the number would be 123, which is an incorrect answer.

Hope this makes sense and helps!
Final answer:

The added zeros when changing a number from scientific notation to expanded notation are usually not considered significant. They primarily serve as placeholders and do not indicate precision of measurements.

Explanation:

In the field of Mathematics, specifically when working with numbers in scientific notation and expanded notation, the concept of significant zeros comes into play. When you convert a number from scientific notation to expanded notation, zeros that are included in this process are not considered to be significant. Rather, the concept of significant zeros mostly applies to measurements and the precision of those measurements. For example, in the measurement 300.0, the zero at the end is significant because it shows the measurement was precise to the tenth's place. However, in changing a number from scientific to expanded notation, any added zeros primarily serve as placeholders and are typically not considered significant.

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Does Cos (x+y)=cosx+cosy? Or not?

Answers

[tex]\bf \textit{Sum and Difference Identities} \\ \quad \\ sin({{ \alpha}} + {{ \beta}})=sin({{ \alpha}})cos({{ \beta}}) + cos({{ \alpha}})sin({{ \beta}}) \\ \quad \\ sin({{ \alpha}} - {{ \beta}})=sin({{ \alpha}})cos({{ \beta}})- cos({{ \alpha}})sin({{ \beta}}) \\ \quad \\ \boxed{cos({{ \alpha}} + {{ \beta}})= cos({{ \alpha}})cos({{ \beta}})- sin({{ \alpha}})sin({{ \beta}})}\impliedby notice \\ \quad \\ cos({{ \alpha}} - {{ \beta}})= cos({{ \alpha}})cos({{ \beta}}) + sin({{ \alpha}})sin({{ \beta}})[/tex]

What is the value of 3(2p + 4R) when P = 0.8 and R = 1.5

Answers

 3(2p + 4R) when P = 0.8 and R = 1.5
 = 3(2*0.8 + 4*1.5) 
= 3(1.6 + 6)
= 3(7.6)
= 22.8
remove parentheses = 3(2*0.8+4*1.5), then Multiply numbers= (3(4*1.5+1.6), then Multiply again= 3(6+1.6), and add the numbers=3*7.6
The answer will be 22.8

I NEED THIS ASAP! 3(p+2)−7p=18

Answers

the answer should be p= -3
I got -3 as well for the answer!

Find the solution of the differential equation (6−8xy2)dy/dx=y3 such that x=2 when y=4 by regarding y as the independent variable rather than x.

Answers

Final answer:

To solve for the differential equation where y is the independent variable, one must interchange x and y, do some algebraic manipulations to separate the variables, and then integrate. Additional steps may be necessary to solve for individual constants in the equation, using given points such as x=2 when y=4. Given the absence of a starting function, a definite solution cannot be provided.

Explanation:

To find the solution of the differential equation (6−8xy2)dy/dx=y3 where y is the independent variable, we must first formulate the differential equation such that y is the independent variable. We do this by interchanging x and y, leading to (6-8x/y^2)dx/dy= x^3. By separating the variables and integrating, we will get the function y=f(x).

However, often with differential equations, a specific solution is also required. In this case, we know that x=2 when y=4. Plugging these into the function y=f(x) we can solve for the individual constant. Since no function f(x) is given in the question as a basis, it's impossible to come up with a definite solution, but I hope this general approach helps clarify how to solve such problems.

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Write 2.64 as a percent. Please help me thank you do much.

Answers

The answer to this is 264%. Because you have to multiply it by 100
To change numbers to percent, you have to move the decimal 2 places to the right.
So 2.64 = 264%

62.4 percent of what number is 17.16

Answers

62.4% of what number is 17.16
0.624x = 17.16
x = 17.16 / 0.624
x = 27.5 <==

Drag each equation to show if it could be a correct first step to solving the equation
2 (x + 7) = 36.
_____________________________________
| (2 · x) + (2 · 7) = 36   | 2x + 7 = 36 |
| x + 7 = 18    |   2(x + 7) = 72 |
| 2x + 14 = 36  |  x + 14 = 36 


Yes              No             Not Enough Info


Answers

Answer:

Yes

(2 · x) + (2 · 7) = 36x + 7 = 182x + 14 = 36

No

2x + 7 = 362(x + 7) = 72x + 14 = 36

Step-by-step explanation:

It is appropriate to eliminate parentheses as a first step. This can be done using the distributive property, resulting in either of ...

2x +2·7 = 362x +14 = 36 . . . . . 2·7 evaluated mentally

or by dividing the equation by the factor outside parentheses, resulting in ...

x + 7 = 18

___

Any of the equations other than these represent violations of the equal sign. Something has been done to one side of the equation without the same thing being done to the other side.

0.0013 in scientific notation

Answers

1.3 x 10^-3...............

The scientific notation of the decimal number 0.0013 is [tex]0.0013 \times 10^{-3}[/tex].

Scientific notation is a way to express numbers in a concise form, particularly useful for very large or very small numbers.

It consists of two parts: a coefficient and an exponent of 10.

In the case of 0.0013, we can convert it to scientific notation as follows:

[tex]0.0013 \times 10^{-3}[/tex].

Hence, the scientific notation of 0.0013 is [tex]0.0013 \times 10^{-3}[/tex].

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which number produces a rational number when added to 1/5

Answers

-2/3 produces a rational number.

1/5+(-2/3)=
3/15-10/15=
-7/15 (which is rational) 

Answer:

We can add any rational number to 1/5 to get a rational number.

Step-by-step explanation:

Given: We have given a rational number 1/5.

To find: We need to find a number which is added to 1/5 gives a rational number.

Solution: We know that,

Rational number + Rational number = Rational Number

Rational number + Irrational Number = Irrational Number

Irrational Number  + Irrational Number  = Irrational Number.

As we know that given fraction 1/5 is a rational number.

So, when we add any rational number to 1/5 would give a rational number.

Let us we take an example,

[tex]\frac{1}{5} +\frac{2}{3} = \frac{3+10}{15}= \frac{13}{15}[/tex]

We can see in above example that a rational number 2/3 is added to 1/5 gave us 13/15 which is also a rational number.

Therefore, we can add any rational number to 1/5 to get a rational number.

∠1 and ∠2 are supplementary and m∠1 = m∠3. Which one of these statements will always be true?

Answers

Depending on what you are looking for, based on the question alone, I think that m∠2 and m∠3 are supplementary

Given: Angle 1 and angle 2 are supplementary.

Angle 3 and angle 4 are supplementary.

Angle 1 is congruent to angle 3.

Prove: Angle 2 is congruent to angle 4.

Property in Live Oak County is assessed at $250,000,000. The taxes to be raised are $10,000,000. What is the tax rate?

Answers

4% on the taxes. 10mil/ 250 mil = .04

Answer:

The tax rate is 4%.

Step-by-step explanation:

It is given that the property in Live Oak County is assessed at $250,000,000.

The total amount of tax raised on property is $10,000,000.

Let the tax rate be x%.

Since the rate of tax is x%, therefore x% of $250,000,000 is equal to $10,000,000.

[tex]250,000,000\times \frac{x}{100}=10,000,000[/tex]

[tex]2,500,000\times x=10,000,000[/tex]

[tex]x=\frac{10,000,000}{2,500,000}[/tex]

[tex]x=\frac{100}{25}[/tex]

[tex]x=4[/tex]

Therefore the tax rate is 4%.

Elissa and eight friends have lunch at a restaurant. The bill is $56.61. Can the friends split the bill nine equal shares? Use the divisibility rule for 9 to explain your answer.

Answers

Yes the friends can split the bill nine ways because $56.61/9= $6.29    so every individual would pay $6.29

Help me with number 4...

Answers

It's (A)

(- 382/100) / (27/1000)= -141.481....
The answer is D. When dividing, the divisor has to be a whole number. The power of ten used, you use it for the dividend also. The dividend doesn't have to be a whole number.

52 thousandth scientific Notation

Answers

5.2 x 10^-2 is your answer. I hope this helps love! :)

find real numbers a and b such that the equation a+bi=13+9i is true.

Answers

Given:
a + bi = 13 + 9i

Equate the real parts:
a = 13
Equate the imaginary parts:
b = 9

Answer:
a =13
b = 9

Final answer:

The real numbers a and b that make the equation a+bi=13+9i true are a = 13 and b = 9. We match real and imaginary parts of the complex numbers to find a and b.

Explanation:

To find the real numbers a and b such that the equation a+bi=13+9i is true, we simply match the real parts and the imaginary parts of the complex numbers on both sides of the equation. The real part of a+bi is a, and the real part of 13+9i is 13. Therefore, a = 13. Similarly, the imaginary part of a+bi is bi and the imaginary part of 13+9i is 9i. Thus, b = 9. Hence, the values we are looking for are a = 13 and b = 9.

Marcella divided 40.8 gallons of paint among 8 containers. How much paint is in each container?

Answers

40.8/8 = 5.1

5.1 gallons per container

hope this helps :D

5.1 gallons in each container

can whole numbers be rational numbers

Answers

Use this diagram, it might help.

From the inside, whatever that layer is, it can be any of the layers outside of it.

All whole numbers can be a rational number, but not all rational numbers be a whole number.

Kind of like all squares can be rectangles, but not all rectangles can be a square.

The whole number has all the attributes of a rational number, but not all rational numbers have all of the attributes of a whole number.

Evaluate b – 2a – c for a = –7, b = 3, and c = –7

Answers

3-2(-7) -(-7)

3-(-14)-(-7)

3+14+7 = 24

1 Simplify 2\times (-7)2×(−7) to -14−14
3-(-14)-(-7)3−(−14)−(−7)
2 Simplify brackets
3+14+73+14+7
3 Simplify
2424

Can someone help me with this problem

Answers

probability = 88/841

4.75 x 10^6 * 8.77 x 10^5

Answers

I believe the answer to this is 4165750000000.

Both Felipe and Enzo forgot to study for their science test. The probability of Felipe passing the test is .19 . The probability of Enzo passing the test is 1/4.

Which of these events is more likely?

Felipe passes the test.

Enzo passes the test.

or

Neither. Both event are equally likely.

Answers

Enzo has a higher chance of passing because 1/4 is equal to 25% and .19 is equal too 19% and obviously 25% is bigger so Enzo has a higher chance of passing.
probability of felipe passing is 0.19 = 19%
probability of enzo passing = 1/4 = 0.25 = 25%

therefore, enzo has a greater chance of passing
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