A student did an experiment to determine the number of letters recognized on an eye chart to see if it was affected by distance. What is the independent and dependent variable in this experiment?

Answer:

Step-by-step explanation:

Let's solve for x.

5x−2y≤20

Step 1: Add 2y to both sides.

5x−2y+2y≤20+2y

5x≤2y+20

Step 2: Divide both sides by 5.

5x /5 ≤ 2y+20 /5

x≤ 2 /5 y+4

Answer:

x≤ 2 /5 y+4

Let's solve for y.

5x−2y≤20

Step 1: Add -5x to both sides.

5x−2y+−5x≤20+−5x

−2y≤−5x+20

Step 2: Divide both sides by -2.

−2y /−2 ≤ −5x+20

−2 y≥ 5 /2 x−10

Answer:

y≥ 5 /2 x−10

Answer:

x = -2

Step-by-step explanation:

2(x-2) = 3(x+2)-8

Multiply the 2 and 3 out to the numbers in the parentheses. Don't multiply the 3 out to the -8 because it is outside of the parentheses.

2x-4 = 3x+6-8

Combine the 6 and -8

2x-4 = 3x-2

Subtract 2x from both sides

-4 = x-2

Add 2 to both sides

-2=x

Answer:

C

Sorry no step by step in a hurry.

Answer:

The equation would be Y= -7/2x + 7

Step-by-step explanation:

With the points given (0,7) and (2,0) we find our slope which is: -7/2. We know that our change in the y values is -7 and the change in our x values is +2. Y IS ALWAYS OVER X SO WE GET -7/2.

To find our y intercept you just look at the graph of where there's a point on the y line. For example (0,7) the 7 would be our y intercept.

So we get Y= -7/2x +7

The slope is ALWAYS put next to the variable x.

Hope this helps! :)

(Side Note: You look at the graph from left to right, so our first point would be (0,7)!)

Answer:

D. y= -7/2x +7

Step-by-step explanation:

From the graph we see that (0,7) is a point in which our line intersects on the y axis meaning that it will be our y intercept. Thus eliminating option E.

Next, we know that this graph is moving towards the left side of the graph meaning that the values will turn negative and thus meaning that the graph is decreasing, so our slope will be negative.

We know that slope is Rise/run. In thsi case, the graph doesn't have an even run of 2x or -2x because it doesn't intersect directly at those points. This eliminates A and B.

We are now left with Options C and D. Said before, 2 is our run in this graph because when observing the graph, we see that the point (2,0) is lowered by 7 and moved to the right 2. Meaning that 7 is our rise in this case and 2 would be our Run. But because it is negative pur slope is -7/2x.

Which eliminates C. Thus leaving option D as our answer

Answer:

C the line through point C that is perpendicular to the segment AB

Answer:

0.03×10= 10

This is easy why do u need it

Answer:

1 1/3 tubs per min.

2 mph.

50 mph.

9 cups per bag.

Step-by-step explanation:

Multiply the numerator of the first number by the denominator of the second number, then divide the product by the denominator of the first number. Hope this helps :)

To find the box to the top left, we can multiple the sides like rectangles. To find the top left box, we can multiply -1 and 0.5y to get -0.5y.

To find the box on the bottom right, we can multiply the sides like rectangles again. To find the bottom right box, we can multiply 24x and 3 to get 72x.

Answer:

[tex]\$3886.8[/tex]

Step-by-step explanation:

Commission received on selling each storm window [tex]=8\%[/tex] of the selling price of each storm window

Commission received on selling each door [tex]=12\%[/tex] of the selling price of each door

Amount earned on selling storm windows = $5,400

Amount earned on selling doors = $28,790

Commission received on selling storm windows [tex]=\frac{8}{100}(5,400)=\$432[/tex]

Commission received on selling doors [tex]=\frac{12}{100}(28,790)=\$3454.8[/tex]

Therefore,

Total  commission received [tex]=432+3454.8=\$3886.8[/tex]

Answer:

I believe the answer would be 50.714 degrees, I'm not sure how they want you to round that though.

Answer:

x=40

Step-by-step explanation:

Answer:

[tex]\boxed {s = -2 - 4r}[/tex]

Step-by-step explanation:

Solve for [tex]s[/tex]:

[tex]-2 = 4r + s[/tex]

-Switch sides:

[tex]-2 = 4r + s[/tex]

[tex]4r + s = -2[/tex]

-Subtract [tex]4r[/tex] to both sides:

[tex]4r - 4r + s = -2 - 4r[/tex]

[tex]\boxed {s = -2 - 4r}[/tex]

Answer:

no

Step-by-step explanation:

unless it has a - in front of it no

Answer:

no

Step-by-step explanation:

Answer:

21:1

Step-by-step explanation:

84 / 4=21

Answer:215

Step-by-step explanation:You have to add to get your answer.

12+12=24

24+112=136

136+7=143

143+4=147

147+68=215

Your answer is:215

Answer:

An explicit formula for the shipping cost is  = . The store charges $55 when shipping 11 items.

Step-by-step explanation:

An online store charges when shipping 11 boxes would be; 55 dollars

An arithmetic sequence is a sequence of integers with their adjacent terms differing with one common difference.

An arithmetic sequence, therefore, is defined by two parameters, viz. the starting term, and the common difference.

Given that the online store charges $5 to ship one box and $10 to ship two boxes.

We have to write an explicit formula for an arithmetic sequence to represent the amount the online store pays to ship n boxes.

From what we know so far;

y = 5n

Now Using the explicit formula to determine how much the online store charges when shipping 11 items.

y = 5(11)

y = 55 dollars

Hence, A online store charges when shipping 11 boxes would be; 55 dollars

Learn more about arithmetic sequence here:

https://brainly.com/question/3702506

#SPJ2

x = 120

Too long to exaplin.

Just trust me

Answer: 8/1 = 32/4  (32 ounces in 4 cups)

Step-by-step explanation:

Answer:

-4 1/26

Step-by-step explanation:

You will want to Reduce the expression, if possible, by cancelling the common factors.

Answer: x= -27

Step-by-step explanation: subtract 9 from both sides to get x by itself

Answer:

X=-27 Should be the answer

Step-by-step explanation:

Subtract 9 from both sides of the equation

X = -18 - 9

Subtract 9 from -18

X = -27

Answer:

20

Step-by-step explanation:

You would do this by dividing 43 into 860

Answer

[tex]\frac{11}{17}[/tex]

Step-by-step explanation:

first, make an equation. here (d) represents the number of animals that are dogs.

136-48= d

d= 88

now we have [tex]\frac{88}{136}[/tex]

all you have to from here is simplify,

88/136= [tex]\frac{11}{17}[/tex]

Answer:

11/17

I checked on the RSM system it says it is correct

Answer:

90

Step-by-step explanation:

6x4^2+(-2)x3=

6x16-2x3=

96-6=

90

Answer:

90

Step-by-step explanation:

You would use PEMDAS (or GEMDAS) to solve it.

First solve the parenthesis:

[tex]6*4^{2} +(6-8)*3[/tex]

[tex]6*4^{2} -2*3[/tex]

Then you would solve the exponent:

[tex]6*4^{2} -2*3[/tex]

[tex]6*16 -2*3[/tex]

Then you would solve for multiplication/division in the order they appears:

[tex]6*16 -2*3[/tex]

[tex]96 -2*3[/tex]

[tex]96 -6[/tex]

Finally, subtract/add the numbers in the order they appear:

[tex]96 -6[/tex]

[tex]90[/tex]

Answer:

2x-4= 7x-34

30=5x

6=x

Step-by-step explanation:

bring the variables to one side and numbers to the other by either subrtracting or adding depending on the values.

now divide 5 on both sides

now you have the answer

I hope this helps!

Answer:

The correct answer is a total of 9 arrangements with a total of 8 balloons in each. 4 mb, 3 wb, 2 ob.  

Step-by-step explanation:

There is a total of 72 balloons just divide by 8.

72/8 = 9

since 32, 24, 16 are divisible by 8 now we can divide and get 9 arrangements.

4 maroon ballons

3 white balloons

2 orange balloons

9 total

Answer:

Step-by-step explanation:

Hi so 2/3

where slope means rise over run

so  it means the first point or you slope(x1 y1)

and you take that point, go up 2 on Y, and move 6 unit to the left(x)

Answer: the answer would be -63 would be X canned goods 825 is Y number of days hope this helped!

Step-by-step explanation:

remeber formula = y2-y1 divided by y2-y1= your answer

Answer:

Answer: the answer would be -63 would be X canned goods 825 is Y number of days hope this helped!

Step-by-step explanation:

remeber formula = y2-y1 divided by y2-y1= your answer

Step-by-step explanation:

Answer:

1.716*10^-3

Step-by-step explanation:

(4.4*10^-6)*(3.9*10^2)=0.001716

To convert 0.001716, we need to move the decimal places three places to the right to make sure the number is between 1 and 10. Moving three places to the right makes the exponent negative.

Answer: The Graph Is shifted 5 units down.

(I believe you might have forgotten to square the “(x-1)”. It should be “(x-1)^2”)