Vlad spent 20 minutes on his history homework and then completely solved x math problems that each took 2 minutes to complete. what is the equation that can be used to find the value of y, the total time that vlad spent on his homework, and what are the constraints on the values of x and y? y=2x 20; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20. y=2x 20; x is any real number greater than or equal to 0, and y is any real number greater than or equal to 20. y=20x 2; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20. y=20x 2; x is any real number greater than or equal to 0, and y is any real number greater than or equal to 20.

Answers

Answer 1

The expression for y is y = 2x +20; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20

How to form mathematical expression from the given description?

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

What is domain and range of a function?

Domain is the set of values for which the given function is defined.

Range is the set of all values which the given function can output.

We're given that:

Time spent by Vlad on history homework = 20 minutesTime spent by Vlad on math homework (x math problems) = 2 minutes on each problemy = time he spent on doing overall homework

Then we have:

y = time on math homework + history homework

y = 2 +2 +2 ... (x times) + 20 minutes

[tex]y = 2x + 20[/tex]

x is "number of math problems". Thus, x can be 0,1,2,... These numbers are called non-negative integers(or integers greater or equal to 0) or whole numbers.

y is the time taken, but we see that

y = 2 times (non-negative integer) + 20

y = positive integer times non-negative integer + positive integer

Thus, we have:

y = non-negative integer + positive integer = positive integer

Thus, y assumes positive integral values only (in minutes).

Also, y is always going to be at least 20 (as history homework is going to take 20 minutes, even if math homework is nill ).

Thus, the expression for y is y = 2x +20; x is any integer greater than or equal to 0, and y is an integer greater than or equal to 20

Learn more about domain here:

https://brainly.com/question/20073127


Related Questions

Does x^2=-4 have one solution

Answers

Answer:

The answer has no solutions but if you want it in imaginary numbers the answer would be x=-2i and x=2i

Answer:

No solution

Step-by-step explanation:

If the answer has no solution you can't change it, just write No solution

Chen uses these digit cards.


5,6,9
She makes a 2-digit number and a 1-digit number.
She multiplies them together.
Her answer is a multiple of 10

What could Chens multiplication be?

_ _X_

Answers

Answer:

95 x 6

or  96 x 5

Step-by-step explanation:

Solve by logic

If you examine the three numbers, you will see that 5 is the only factor of 10.

If we multiply 5 by an even number, we get a multiple of 10.

If we multiply 5 by an odd number, we get a multiple of 5.

Therefore, the 1-digit number must be 5 or 6, and the last digit of the 2-digit number must be 6 or 5.

This means that the first digit of the 2-digit number has to be 9.

So the options are:  95 x 6  and  96 x 5

Proof

56 x 9 = 504

59 x 6 = 354

65 x 9 = 585

69 x 5 = 345

95 x 6 = 570

96 x 5 = 480

**Mulitples of 10 have a zero in the units place**

Can I get help with this problem

Answers

Answer:

4,7,0,

Step-by-step explanation:

answer 1 is 4 2 nd answer is 7 third answer is 0 and 4 th answer is I don't know

The answer should be 4. In sequences, it repeats and in yours it will continue to do this specific one forever.

HELP! WILL GIVE BRAINLEST!

Answers

Answer:

210, 330

Step-by-step explanation:

we know that the angle 30 gives the value of 1/2

so, since we know that sin is negative in both the third and the fourth quadrant, we can find the answer.

make sure to ask if you need any further guidance. :)

What is (3^2)^4? Pls help will give crown if explanation is fair

Answers

Answer:

answer is the frist picture

Step-by-step explanation:

Two whole numbers have a least common multiple of 24.

Each of these numbers is less than or equal to 12.

The greatest common factor of the two numbers are 4.


What are the two numbers?

A. 6 and 12

B. 8 and 12

C. 4 and 8

D. 4 and 12

Answers

Answer:

3

Step-by-step explanation:

hopefully it helps :)

James has6 7/12 cups of flour. He uses 2 5/12 cups to bake some cakes. He uses another 2 8/12 cups to bake some cookies.

How many cups of flour does James have left? Someone please help me i need this asap! <3

Answers

Answer:

I believe the answer would be 3/2 or 1 1/2

Step-by-step explanation:

This is how I did it

6 7/12 - 2 5/12 =  4 1/6

Then,

4 1/6 - 2 8/12 = 1 1/2

In decimal form, it'll be 1.5

----------------------------------

I hope i helped you.

can somebod help me with this

kinda forgot how to do it

Answers

Answer:

21.98

Step-by-step explanation:

u have 2 multiply 3.14 and 7

ur wlcm

Answer:

21.98

Step-by-step explanation:

might be 21.99 but schould be 21.98

c=pie(d)

C=3.14(7)

21.98=7x3.14

Find the area of each figure. The unit of length is cm (b) E D 8 25: :15 8 A 36 A 10 M 17 N 12 B




please help asap please please ​

Answers

I hope I can help you:)


PLS HELP ASAP THANKS ILL GIVE BRAINLKEST


A jar has 28 cherry-flavored candies, 18 strawberry-flavored candies, and 20 orange-flavored candies. If a piece of candy is taken from the jar at random, what is the probability that it will be strawberry-flavored candy?
Group of answer choices

10/33

1/20

14/33

3/11

Answers

Answer:

3/11

Step-by-step explanation:

You add up all of the candies so 20+19+28 which is 66

18 is the number of strawberry candies so it becomes 18 over 66, 18/66

Symplify 18/66 and it becomes 3/11

Hello, The question is in the attachment

Help me, Please.(❁´◡`❁)

Answers

Answer:

1/9

Step-by-step explanation:

Your required probabilty answer is 1/9

A function f is odd and f(x)=x^2 for all x>0. Sketch the graph of this function and then write the rule of this function as a single formula.

Answers

We will see that we have a piecewise function:

f(x) = x^2   for x > 0.f(x) = -x^2  for x ≤ 0.

The graph can be seen at the end.

What is an odd function?

A function is odd when f(-x) = -f(x) for all the values of x in the domain of the function.

In this case, we know that:

f(x) = x^2   for x > 0.

Then, for the negative range, the sign must change (but the quadratic function is even). Then we define the function in the negative range as:

f(x) = -x^2  for x ≤ 0.

This is the odd function (a piecewise function) for the whole domain:

f(x) = x^2   for x > 0.f(x) = -x^2  for x ≤ 0.

The graph of the piecewise function can be seen below.

If you want to learn more about piecewise functions, you can read:

https://brainly.com/question/3628123

Answer:

[tex]f(x) =\frac{x^3}{|x|}[/tex]

Step-by-step explanation:

Being an odd function means that [tex]f(-x) = -f(x)[/tex].

Graphically, it means the function will be symmetric across the origin.

So, the graph will have to look like the shown graph.

This graph looks quite similar to the graph [tex]f(x) = x^3[/tex], so we can use that as our parent function.

To get the graph to equal [tex]x^2[/tex] for x>0, we must divide [tex]x^3[/tex] by x.

However, this will simply result in the function [tex]f(x) = x^2[/tex].

If we divide by the absolute value of x however, the graph will look as desired.

Determine if the given relation is function or not. Give its domain and
range.
{(1, 6), (2, 7), (3, 8), (4, 9)}

Answers

Answer:

Yes

Step-by-step explanation:

According to definition of the function, it should have one-to-one relation.

We can see all pairs are unique, no repeated ranges for same domain.

Yes, this is a function.

Given relationship

(1,6)(2,7)(3,8)(4,9)

Domain:-

{1,2,3,4}

Range:-

{6,7,8,9}

As every domain has an unique range it's a function

what is the ordered pairs for y=6x-3

Answers

Answer:

(0,−3),(1,3),(2,9) are possible options

Step-by-step explanation:

I need help please

I will give points and brainlest

Answers

Answer:

  a. 2 7/9 miles

  b. 21.6 minutes

  c. 8 1/3 miles

Step-by-step explanation:

The rate at which Catlin runs can be determined from the graph by finding the coordinates of a grid point that lies on the line. The line goes through the origin, so the relationship between time and distance is proportional.

We see that the point (miles, minutes) = (1 2/3, 12) lies on the graph, so the contant of proportionality is ...

  k = y/x = 12/(5/3) = 36/5 = 7.2 . . . . minutes/mile

__

a.

The proportion can be written ...

  distance/(20 minutes) = (1 mile)/(7.2 minutes)

  distance = (20/7.2) miles = 2 7/9 miles

Catlin will run 2 7/9 miles in 20 minutes

__

b.

The proportion can be written ...

  time/(3 miles) = (7.2 minutes)/(1 mile)

  time = (3)(7.2 minutes) = 21.6 minutes

Catlin was running 21.6 minutes

__

c.

In 1 hour, Catlin will run 3 times as far as in 20 minutes. Using the result from part A, we find ...

  3(2 7/9 miles) = 8 1/3 miles 8 1/3 miles

Catlin will run 8 1/3 miles in one hour.

_____

Additional comment

Once we have a relationship between minutes and miles, we can write proportions with either of those numbers in the numerator or denominator. We find it convenient to put the unknown value in the numerator of a proportion, which is why the ratios are written differently in the different parts of the problem.


I NEED HELPP PLEASE

Answers

Answer:

√17

Hope it helps.......

What are the roots of the polynomial equation x cubed minus 6 x = 3 x squared minus 8? use a graphing calculator and a system of equations. –40, –4, 5 –5, 4, 40 –4, –1, 2 –2, 1, 4

Answers

Answer:

-2, 1, 4

Step-by-step explanation:

Question was already answered.

Answer:

its D on edge 2022

Step-by-step explanation:

What is the slope of line a?
у
6
5
3
2
to -54 -3 -2 -
2 3 4
1
-2
-3
-5
-6
o
1
4
0-4
04
0
is

Answers

Answer:

The slope equals the rise divided by the run:

Step-by-step explanation:

You can determine the slope of a line from its graph by looking at the rise and run. One characteristic of a line is that its slope is constant all the way along it. So, you can choose any 2 points along the graph of the line to figure out the slope.

I need help with this

Answers

Answer:

Step-by-step explanation:

Ir is a rectangle because it is a plane figure with four straight sides and four right angles, especially one with unequal adjacent sides, in contrast to a square.

1. Mr. Samuel had 13 notes in his wallet. They consist of $1. $5 and $10 notes. The total amount of the notes adds up to $93. How many $10 notes are there in his wallet?​

Answers

Answer:

8 $10 notes

Step-by-step explanation:

I started by working it backwards. $93-$3 equals $90. So we have three of our 13 notes. We need ten more. Well the most $10 notes we can have is 8. if we had 8 $10 notes that would give us $80. $90-$80=10. We can take ten and divide it by five so we have 2 $5 notes.

So in total he would have 8 $10 notes, 2 $5 notes, and $3 one dollar notes which adds up to 13 notes

I need help plsss ..............

Answers

48 = 3x
ab = 0
b^2 = x
b + 2x + a = m [we need to find “m”]

48 = 3x, so x = 16
b^2 = 16, so b = 4 (or - 4)

4 + 32 + 0 = 36
- 4 + 32 + 0 = 28
[there are two solutions to this problem]

Having which of the following is a trait for a architectural designer

Answers

Answer:

Architect Characteristics

Negotiation Skills

Love of Learning

Broad Knowledge

Love of Nature

Hard Workers

Step-by-step explanation:

Helpp me rnnnnnnnnnnnnnnnnnnnnnn

Answers

Answer:

[tex]y=\frac{3}{2} x-3[/tex]

Step-by-step explanation:

Slope Intercept form;

[tex]y=\frac{3}{2} x-3[/tex]

Answer number 5 pleaseee

Answers

Answer: $17.55

Step-by-step explanation:

    We will multiply the bill by 117% to account for the original amount and the tip being given.

117% / 100 -> 1.17

$15 * 1.17 = $17.55

     Sarah should leave $17.55 in total.

Lisa’s kitchen is 6. 5 m wide and the perimeter is 29. 6 m and rectangular in shape.


Calculate the length of her kitchen.

m

Answers

ANSWER: 8.3

EXPLANATION :perimeter= (length + width)2

29.6 m = ( length+6.5)2

29.6 = 2l + 13

29.6 Subtract 13 = 2 lengths

16.6÷2 =2l ÷2

length = 8.3

Ann planted daisies in her garden. After a month, she measured the height of each daisy.

Answers

Answer:

the median is 7 for your question center

Select the correct answer.
Simplify the expression.

Answers

Answer:

Option D :- [tex] \sf \: 18 {x}^{2} {y}^{2} \sqrt[3]{3 {xy}^{2} }[/tex]

Step-by-step explanation:

[tex] \sf \: 3x\sqrt[3]{648 {x}^{4} {y}^{8} }[/tex]

transform the equation

[tex] \rightarrow \sf \: 3x\sqrt[3]{ {6}^{3} \times {3x}^{2} \times {xy}^{6} \times {y}^{2} }[/tex]

rewrite the expression

[tex] \rightarrow \sf \: 3x \times \sqrt[3]{ {6}^{3}} \times\sqrt[3]{ {3x}^{2}} \times \sqrt[3]{ {xy}^{6} } \times \sqrt[3]{{y}^{2} }[/tex]

Simplify the radical expression

[tex] \rightarrow \sf \: 3x \times {6xy}^{2} \sqrt[3]{3xy {}^{2} }[/tex]

Multiply

[tex] \sf \: 18 {x}^{2} {y}^{2} \sqrt[3]{3 {xy}^{2} }[/tex]

Answer: Option D :-

Step-by-step explanation:

transform the equation

rewrite the expression

Simplify the radical expression

Multiply

Step-by-step explanation:

Complete this activity. Record and submit your results.

Toss a coin 200 times. Record the heads and tails as you toss. Submit your results for the number of heads after:

I. 10 tosses
II. 50 tosses
III. 100 tosses
IV. 200 tosses

Answers

Believe it is III. = 100 tosses according to wikipedia a coin flip should about have a chance of 50/50.1.

THE PYTHAGOREAN THEOREM; FIND THE SHORTER SIDE
A television screen with a 68-inch diagonal is 60 inches wide. How tall is
the television screen?

Answers

Answer:

32 inches tall

Step-by-step explanation:

Pythag orean theorem

60^2  + tall^2 = 68^2

tall = 32 inch

NEED HELP!!! WILL GIVE BRAINLIEST, PLEASE COMPLETE BOTH!!!

Answers

solution 1:

[tex]\rightarrow \sf 7 * 3\dfrac{1}{5}[/tex]

[tex]\rightarrow \sf 7 * \dfrac{16}{5}[/tex]

[tex]\rightarrow \sf \dfrac{112}{5}[/tex]

[tex]\rightarrow \sf 22\dfrac{2}{5}[/tex]

solution 2:

[tex]\rightarrow \sf 5\dfrac{4}{10}*2[/tex]

[tex]\rightarrow \sf \dfrac{54}{10}*2[/tex]

[tex]\rightarrow \sf \dfrac{108}{10}[/tex]

[tex]\rightarrow \sf 10\dfrac{8}{10}[/tex]

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