A researcher sends out a survey to 740 subjects by mail and receives completed surveys from 65% of the subjects. How many surveys did the researcher receive?

Answers

Answer 1

Just do 740 times .65 which is 481

Related Questions

You can buy 4 pounds of peaches for $5.96. What do 4 1/2 pounds of peaches cost?

Answers

4 1/2 of pounds of peaches cost 0.74 because 5.96/5 = 1.49 and 1.49/2 = 0.74. So the total cost is $6.70

What you wanna do is find the unit rate. The unit rate of this problem would be 5.96 / 4 = $1.49 per pound of peaches. Then you want to divide $1.49 by 2 to get the price per HALF pound. $1.49 / 2 = $0.745 which you round to $0.75 and then start back with the number $5.96 for 4 pounds and add the 75 cents for the half pound and you get $6.71

Hopefully not too confusing lol

Harry worked seven hours last week this is 1/3 as many hours as Aiden worked how many hours did Aidan work

Answers

7 hours is 1/3 of what?
Multiply 7 by 3.
7 * 3 = 21
Answer: 21 hours.

The answer would be 21 hours. Aiden worked 21 hours.

Pretty much, if 7 is 1/3 of how many hours Aiden worked, then all you do is multiply 7 by 3.

Hope that helps!

Factor the following

Answers

(x+2)^2

This can be rewritten as:

(x + 2)(x + 2)

Multiply everything in the second parenthesis by x.

x^2 + 2x

Multiply everything in the second parenthesis by 2.

2x + 4

Add these equations together.

x^2 + 2x + 2x + 4

Combine like terms.

x^2 + 4x + 4

Hope this helps!

Veronique and Lily compare their investment accounts to see how much they will have in the accounts after seven years. They substitute their values shown below into the compound interest formula. Compound Interest Accounts Name Principal Interest Rate Number of Years Compounded Veronique $1,000 5% 7 Once a year Lily $1,800 9% 7 Once a year mc017-1.jpg Which pair of equations would correctly calculate their compound interests? Veronique: mc017-2.jpg, Lily: mc017-3.jpg Veronique: mc017-4.jpg, Lily: mc017-5.jpg Veronique: mc017-6.jpg, Lily: mc017-7.jpg

Answers

Answer:

Step-by-step explanation:

The pair of equations that would correctly calculate their compound interests are:

Veronique's interest = A = 1000(1 + 0.05/1)⁷ - 1000 = 407.10

Lily's interest = 1800(1 + 0.09/1)⁷ - 1800 = 1,490.47.

What is the compound interest rate?

Compound interest is computed as interest on the principle of an account plus any accrued interest.

Compound interest can be calculated using the following formula:

x = P (1+r/n)^(nt)

,where x = compound interest

P = principal (the initial deposit or loan amount)

r = annual interest rate

n = the number of compounding periods per unit of time

t = the number of time units the money is invested or borrowed for

For Veronique, we have:

A = 1000(1 + 0.05/1)⁷ = $1,407.10

For Lily, we have:

A = 1800(1 + 0.09/1)⁷ = $3290.47

To calculate the compound interest for each account, we subtract the principal amount from the final amount:

For Veronique:

Interest = A - P = $1,407.10 - $1,000 = $407.10

For Lily:

Interest = A - P = $3,290.47 - $1,800 = $1,490.47

Therefore, the pair of equations that would correctly calculate their compound interests are:

Veronique's interest = A = 1000(1 + 0.05/1)⁷ - 1000 = 407.10

Lily's interest = 1800(1 + 0.09/1)⁷ - 1800 = 1,490.47.

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Write an equation of the line that passes through (0, 5) and (−1.5, 1)

Answers

Let's solve this problem step-by-step.

STEP-BY-STEP SOLUTION:

Let's establish the formula we will be using to achieve the equation of the line.

y - y1 = m ( x - x1 )

m = gradient / slope of line

To use the previous formula, we will need to first find the gradient ( m ) using the below formula. We will be substituting the values of the points given in the problem into this formula.

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

m = ( 5 - 1 ) / ( 0 - ( - 1.5 ) )

m = ( 5 - 1 ) / ( 0 + 1.5 )

m = 4 / 1.5

m = 8 / 3

Now we will substitute the value of ( m ) from above into the formula for the line. We will also be substituting the values of one of the given points into the formula. In this example, we will be using the point ( 0, 5 ).

y - y1 = m ( x - x1 )

y - 5 = ( 8 / 3 ) ( x - 0 )

y - 5 = ( 8 / 3 )x

y = ( 8 / 3 )x + 5

FINAL ANSWER:

The equation of the line is:

y = ( 8 / 3 )x + 5

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Thank you and have a lovely day! <3

The equation of the line that passes through (0, 5) and (−1.5, 1) is y = 8/3 x + 5

The equation can be represented as follows:

y = mx + b

where

m = slope

b = y-intercept

lets find the slope

(0, 5) (−1.5, 1)

m = 1 - 5 / -1.5 - 0 = - 4 / -1.5 ≈ 8 / 3

we multiplied the numerator and denominator by 2

b = 5, b is the value of y when x = 0.

Therefore, the equation will be as follows:

y = 8/3 x + 5

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The perimeter of a rectangle is 36 yards. The width is 18 yards less than twice the length. Find the length and the width of the rectangle

Answers

The formula for perimeter is P = 2L + 2W.

Here W = 2L-18 and 2L + 2W = 36. Subst. 2L-18 for W:

2L + 2(2L-18) = 36. Then 6L - 36 = 36, and 6L = 72. Therefore, L = 12 yd.

W = 2(12 yd) - 18 yd = 24 yd - 18 yd = 6 yd

The rectangle's dimensions are 6 yd (width) by 12 yd (length).

Note that P = 2(6) + 2(12) = 36, as required.

Final answer:

The length of the rectangle is 12 yards and the width is 6 yards. The problem is solved with algebra using the formulas for the perimeter of a rectangle and given relation between the length and width.

Explanation:

This problem involves the use of algebra in solving geometrical problems. The question provides information about the perimeter and the relationship of length to width using algebraic expressions. To find the length and the width, we can use the formulas for the perimeter of a rectangle (P=2L + 2W) and the given width (W=2L-18).

Let L represent the length. Then, 2L+W=18 represents the width. Setting 2L + 2W equal to the given perimeter of 36, we get 2L + 2(2L - 18) = 36.

Solving this equation gives: L = 12, and substituting L=12 into W=2L - 18, we get: W=6. Hence, the length is 12 yards and the width is 6 yards.

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doreen needs 1/2 of the remaining 3/4 bag of flour to bake a cake. what fraction of the entire bag does she need?

Answers

A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator. Then 3/8 of the entire bag does she need.

What is Fraction?

A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator.

It is given that doreen needs 1/2 of the remaining 3/4 bag of flour to bake a cake. We need to find the fraction of the entire bag does she need.

When Some fraction of another fraction means a fraction is multiplied with the another fraction.

1/2 of the remaining 3/4

one by two times of three by four.

1/2 × 3/4

While multiplying fractions, the numerators are multiplied and the denominators are multiplied.

So 1 and 2 are multiplied on numerator and 2 and 4 are multiplied on denominator.

1×3/2×4

3/8

Hence 3/8 of the entire bag does she need.

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20 points and brainliest to the fastest, right answer!

Please answer ASAP: Use cross products to determine which of the following proportions are equivalent to each other.
Select all situations that apply.
a/b=c/d
a/c=b/d
a/d=c/b
b/a=d/c
d/a=c/b

Answers

(a+c)/(b+d) = (a-c) / (b-d)
cross multiply
ab -ad +bc -cd = ab +ad -bc -cd
cancelling ab and -cd, on both sides of eqn

combining like terms
-2ad = -2bc
dividing both sides by (-2)
ad =bc
dividing both sides by (bd)
a/b = c/d,,,,,,,,,as required

ad=cb
ad=cb
ab=cd
bc=da
bd=ac
1 and 2 are equal

Michael did 45 pushups in 3 minutes. Michelle did 36 pushups in 2 minutes.Who did pushups at a faster rate? How much faster was that person? Answer with supporting work.

Answers

Micheal did more push ups
Micheal: 45/3 equals 15 push ups per minute
Michelle: 36/2 equals 18 push ups per minute

Curve passes through the point (0,8)(0,8) and has the property that the slope of the curve at every point pp is four-times the y-coordinate. what is the equation of the curve

Answers

"Curve passes through the point (0,8) and has the property that the slope of the curve at every point pp is four-times the y-coordinate."

Slope of tangent line at a given point = value of derivative of function at that point.

Thus, dy/dx = derivative = 4y

Thus, dy/dx = 4y. Rearrange this with all y on one side and all x on the other:

dy
--- = 4dx
y

Integrating both sides, we get ln|y| = 4x + ln C, or ln|y| - ln C = 4x

|y|
Then ln -------- =4x. This can be written as an exponential function:
C

|y|
--- = e^(4x). Thus, |y| = C*e^(4x). Given that this curve passes thru (0,8),
C

8 = C*e^0, so C = 8. Then the function question is y = 8e^(4x).

In two or more complete sentences, explain whether the sequence is finite or infinite. Describe the pattern in the sequence if it exists, and if possible find the sixth term. 2a, 2a2b, 2a3b2, 2a4b3. . .

Answers

This is infinite since the sequence can go on forever. The sequence increases by 1b every time and the end number is increased 1 every time as well.

Answer:

a). it is an Infinite Sequence.

b). This sequence is Geometric Progression.

c). [tex]6th\,term\,of\,this\,GP\,=\,2a^6b^5[/tex]

Step-by-step explanation:

Given: A Sequence 2a , 2a²b , 2a³b² , [tex]2a^4b^3[/tex]

To find: a). Given Sequence is finite or infinite

b). Pattern of the sequence

c). Sixth term

a). Since, there is no detail about no. of terms of the sequence.

Therefore, It implies it is an Infinite Sequence.

b). Given 1st term = 2a , 2nd term = 2a²b , 3rd term = 2a³b²

First we find the difference of 1st and 2nd term

d = 2a²b - 2a ⇒ d = 2a (ab - 1)

Now, Difference of 2nd and 3rd term,

d = 2a³b² - 2a²b = 2a²b (ab - 1)

So, This Sequence is not a Arthematic Progression.

Now, we find the ratio of 2nd term to 1st term,

[tex]r\:=\:\frac{2a^2b}{2a}\,=\,ab[/tex]

Ratio of 3rd term to 2nd term,

[tex]r\:=\:\frac{2a^3b^2}{2a^2b}\,=\,ab[/tex]

Since, the ratio is common.

This sequence is Geometric Progression.

So, Pattern is next term of this sequence has 1 more in power of a and b

⇒ [tex]nth\,term\,of\,this\,GP\,=\,2a^{n}b^{n-1}[/tex]

c). [tex]6th\,term\,of\,this\,GP\,=\,2a^{6}b^{6-1}[/tex]

[tex]6th\,term\,of\,this\,GP\,=\,2a^6b^5[/tex]

Therfore, a). it is an Infinite Sequence.

b). This sequence is Geometric Progression.

c). [tex]6th\,term\,of\,this\,GP\,=\,2a^6b^5[/tex]

A small train at an amusement park is carrying passengers. Half of the passengers are 6 years old, 1 over 10 are 7 years old, 1 fifth are 8 years old, and 1 fifth are 9 years old.

What is the expected age for one of the passengers on the train?

6 years

7.1 years

8 years

8.5 years

Answers

8 years old in in 6th GRADE and I'm pretty sure that the answer for this problem is 8 years old

The expected age for one of the passengers on the train is 7.1 years. This can be explained by following steps:

Following are the calculation for the expected age given

½ = 6 years old

1/10 = 7 years old

1/5 = 8 years old

1/5 = 9 years old

With the help of the above information, expected age can be calculated as follows:

Expected age = ½*6+1/10*7+1/5*8+1/5*9

= 6/2+7/10+8/5+9/5

=3+0.7+1.6+1.8

= 7.1

Therefore, the correct answer is 7.1 years old.

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Write the equation in standard form
x^2+y^2+6x+14y+37=0

Answers

You'll need to group all the x terms together in one place and allt he y terms together in another place.

Standard equation of a circle is (x-h)^2 + (y-k)^2 = r^2, where r is the radius and the point (h,k) is the center of the circle.

Rearranging x^2+y^2+6x+14y+37=0 produces

x^2 + 6x + y^2 + 14y = -37

We must now "complete the square" of x^2 + 6x.

Take half of the coefficient of x (which is 6) and square that. Add this square to x^2 + 6x, and then subtract this square:

x^2 + 6x + (3)^2 - (3)^2

Now do the same thing to the given y terms.

x^2 + 6x + 9 - 9 + y^2 + 14y + (7)^2 - (7)^2 = -37

This becomes This becomes
(x+3)^2 -9 (y+7)^2 - 49 = -37

Add 9 and add 49 to both sides. You end up with

(x+3)^2 + (y+7)^2 = 49 + 9 -37 = r^2

Find r.

This is the equation of the circle in standard form. Its center is at (-3,-7).

Write a function perfect that determines whether parameter number is perfect number

Answers

An integer number is said to be a perfect number if the sum of its factors, including 1 (but not the number itself), is equal to the number

What's the answer? I need help. Thank you :)

Answers

6 3/4 divided by 3/4

= 27/4 / 3/4 = 27/4 * 4/3 = 27 /3 = $9 Answer

... Pick any column in the table.
... Divide the cost by the weight.
... The quotient is the cost per pound of nuts.
... Whichever column you choose, the answer is always the same. So pick the column with the fractions that you think will be easiest to divide.

The whole purpose of this question is to practice dividing mixed numbers and fractions. It actually has nothing to do with pecans. It could be the same table for pistachios, apples, or M & M's.

If x2 = 10, what is the value of x?
A. ±square root of 10
B. ±square root of 20
C. ±5
D. ±20

Answers

Answer:

C. ±5

Step-by-step explanation:

Answer:

+square root of 20

for sure i got it right on my test

Step-by-step explanation:

Rya uses 4 gallons of gas ro drive 120 miles on the highway. If she gets that samw gas mileage, how many miles can she drive on 1 gallon of gas?

Answers

120/4=30

so Rya gets 30 miles off of 1 gallon of gas

30 miles - you set a proportion of 4 to 120 and 1 to x, then you get 4x = 120 and divide 120 by 4 to get 30.

the line L1 has equation 2x + y = 8. The line L2 passes through the point A ( 7, 4 ) and is perpendicular to L1 . Find the equation of L2.

Answers

the formula to find linear eqution of graph is
y=mx+c
m= gradient
c= y intercept

first find what is the gradient of L1. In order to get the gradient make y the subject. thus,
2x+y=8
y=-2x+8
thus, the gradient of L1 is -2.

The question states that L2 is perpendicular to L1, thus the gradient of L2 is reciprocal to gradient of L1.
Thus, gradient of L2 will be
m= 1/2

In order for the gradient to be reciprocal, it needs to be perpendicular.
thus so far the equation of L2 is
y= 1/2x+c
Now the question states that is passes through A(7,4). Thus you need to sub in x=7 and y=4 into equation of L2 to find what is the y intercept.
4= 1/2(4)+c
c=2
thus the equation of L2 is
y=1/2x+2

Answer: [tex]x-2y+7=0[/tex]

Step-by-step explanation:

Given : The line[tex]L_1[/tex] has equation [tex]2x + y = 8[/tex]

In intercept form : [tex]y =-2x+8[/tex]

The slope of [tex]L_1[/tex] =-2 [in intercept form equation of line [tex]y =mx+c[/tex], m is slope ]

Let p be slope of [tex]L_2[/tex]

We know that when two lines are perpendicular then the product of their slopes is -1.

[tex]\Rightarrow\ -2\times p=-1\\\\\Rightarrow\ p=\dfrac{1}{2}[/tex]

The equation of line having slope 'm' and passing through (a,b) is given by :-

[tex](y-b)=m(x-a)[/tex]

Then , equation of line [tex]L_2[/tex] will be :-

[tex](y-7)=\dfrac{1}{2}(x-7)\\\\\Rightarrow\ 2y-14=x-7\\\\\Rightarrow\ x-2y+7[/tex]

If the coordinates of point A are (-3, 2) and the coordinates of point B are (7, 6), the x-intercept of is . Point lies on .

Answers

you would move five down and eight to the right, it depends how how the grid is

A homeowner is draining her swimming pool. The volume of water in the pool changes by −12 gallons every minute.

What is the change in volume over 60 minutes?

Answers

The drainage rate is -12 gallons / minute.

To answer this question, multiply -12 gallons / minute by 60 minutes.

That comes to -720 gallons, the volume by which the water in the pool decreases in an hour.

So, water decreases by 12 gallons EVERY minute.

How much water will decrease in 60 minutes?

[tex]12*60=720[/tex] gallons

So, the volume changes by 720 gallons in 60 minutes.

ANSWER: Volume decreases 720 gallons in 60 minutes.

find the y-intercept of the line represented by 6x-7y=12

Answers

To find the y-intercept of the line represented by 6x - 7y = 12, we first need to rewrite the equation into standard form. Here is how you do it:
6x - 7y = 12
-7y = -6x + 12
y = 6/7x - 12/7
The y-intercept of the line represented by the equation 6x - 7y = 12 is (0, -12/7). Hope this helps and have a fabulous day!

Copy down this equation, and then let x=0. Solve the resulting equation, -7y=12, for y. Then your y-intercept is the point (0,y).

Construct a polynomial function of least degree possible using the given information.

Real roots: -2, 1/2 (with multiplicity 2) and (-3, f(-3))=(-3,5)

Answers

Theorem: If a function y = f(x) has a real root of b, then (x – b) is a factor of f(x).

As given in the problem, there are two roots: –2 and 1/2. The multiplicity of 1/2 is 2 meaning that the root 1/2 repeats twice. So the function f(x) can be written like this.

f(x) = k• (x – (–2))(x – 1/2)^2 = k•(x + 2)(x – 1/2)^2

We're supposed to find the coefficient k to complete the function.
Given that f(–3) = 5, we can plug –3 in for x and 5 in for f(x).

So 5 = k •(–3 + 2)(–3 – 1/2)^2
5 = k(–1)(–7/2)^2
5 = -k•49/4
Then 5 • 4/49 = -k
Or k = –20/49
So the function with the least degree is
f(x) = –20/49 (x + 2)(x – 1/2)^2.

WILL GIVE BRAINEST
For the x-values 1,2,3, and so on, y-values...

Answers

That's exponential decay.

Answer:

decreasing linear

Step-by-step explanation:

PLEASE HELP WILL GIVE BRAINLIEST!!

What is 0.69 expressed as a fraction in simplest form?

Answers

the answer is 69/100.

69
––
100

would be the answer

Where is the answer to the image of finding the area of the irregular shape that I emailed last night?

Answers

You can break this irregular shape into two rectangles. Then, as there is enough information to determine the side lengths of those rectangles and solve for the area of each rectangle, then you can add the two rectangle areas back together to find the total area of the shape.

See the attached image photo for the clearest guide for one way to do this. (You could also break the figure into two rectangles in at least one other way than the way I have shown.)

The first/top rectangle I created is formed from the 6 yd side of the irregular shape (which you see on the original diagram) and is also 4yd across, which you can determine because the bottom length of the irregular shape is 7 yd (subtract 11 - 7 = to find 4 as the remainder). So the area of that rectangle can be found by multiplying the two lengths (A = base x height), and would be 24.

The second/bottom rectangle I created has a height of 4 yd, which you can determine through subtraction again, because the entire side length of the original shape is 10 yd, and the top part we already allotted to the 1st rectangle is 6. (10 - 6 = 4 yd.) The base length of the second rectangle is 11, as you can see on the original diagram - the entire length of the base of the irregular shape. To find the area of this second rectangle, we multiply the base x height (4 x 11) to get 44.

We can then add the area of the two rectangles together to find the full area of the irregular shape:

24 + 44 = 68 square yards

what are the term in the expression 4x^2-2x-x^2+3x+1

Answers

Whew! Hard Stuff! I think the answer is 3x^2+x+1

how many meters does it take to make 1 kilometer

Answers

1 kilometer = 1000 meters

The answer is 1,000 meters

A vendor sold 72 hotdogs and hamburgers during a football game if the ratio of hotdogs to hamburgers sold was 8:1 how many of each food did vendor sell?

Answers

[tex]\bf \cfrac{hotdogs}{hamburgers}\qquad 8:1\qquad \cfrac{8}{1}\qquad \cfrac{8\cdot \frac{72}{8+1}}{1\cdot \frac{72}{8+1}}\implies \cfrac{8\cdot 8}{1\cdot 8}\implies \cfrac{64}{8}[/tex]

Suppose investment of $6200 doubles in value every 13 years how much is the ivestment worth after 78 years

Answers

78/13=6 times
The investment will be doubled 6 times over 78 years
So the investment worth

A=6,200×2^(6)=396,800

Hope it helps!

You and your frend step into identical row-boats. you notice that your boat sinks into the water twice as far as your friends. what can you say about your friend's weight compared with yours? your friend weighs twice as much as you your friend weighs the same as you your friend weighs half as much as you your friend weighs one fourth your weight

Answers

Since you sank twice as far, that meant you've been eating a little too much ice cream, so you're twice as heavy as your friend. This can also translate as: your friend is half your weight.

The correct answer would be: "your friend weighs half as much as you"

Hope this Helps, and May the Force Be With You!

-Jabba

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