Some people use a rule to see how many hours a child
should sleep at night.
Subtract the child's age in years from 30,
then divide the result by 2.
Tony is 6 years old.
According to the formula, how many hours should he sleep for?

Answers

Answer 1
12 hrs. 30-6 is 24/2 gives you 12

Related Questions

PLEASE HELP!! <3 i litterly don’t understand this.. (math related) (view the picture)

Answers

Answer:

(0,-4), (1,-1), (2,2), (3,5)

Step-by-step explanation:

The first step of the problem is to fill out the chart by plugging in the x's into the equation above which is y=3x-4. The answers to the chart are (0,-4), (1,-1), (2,2), (3,5).

Once you finished the chart, you use the points above and plot them onto the graph, and connect them together. The graph should have a long line going up.

3-7t(more than/equal to)31
Solve the inequality

Answers

T is less then or equal too -4

Can I have brainlist please

In order to join an online learning community, there is a 20$ start up fee and a $5 monthly fee. Write an equation in slope intercept that models this situation

Answers

Answer:

y=5x+20

Step-by-step explanation:

The slope equation is usually in the form

y= mx+b

Where "y" is intercept

m= slope

b= constant= 20$ start up fee

Then writing the equation of slope for the question we have y=5x+20 which represent the slope equation.

Which expressions are equivalent to 5x square root 28x^5+ 8x^3 square root 7x if x>0?

Answers

Answer:

1, 2, & 5 in Vertical Order

The expression equivalent to [tex]5x\sqrt{28x^{5} } + 8x^{3} \sqrt{7x}[/tex]  is  [tex]18x^{3}\sqrt{7x}[/tex].

SimplificationWhat is simplification?

In order to simplify an expression, multiple processes must be used to reduce it to a simpler form.

Formula used in simplification:

[tex]\sqrt[n]{ab} =\sqrt[n]{a} .\sqrt[n]{b}[/tex]

Simplification of given expression:

= [tex]5x\sqrt{28x^{5} } + 8x^{3} \sqrt{7x}[/tex]

= [tex]5x\sqrt{4*7x^{5} } + 8x^{3} \sqrt{7x}[/tex]

= [tex]5x\sqrt{2^{2} *7x^{4}x } + 8x^{3} \sqrt{7x}[/tex]

Apply the simplification formula

= [tex]5x\sqrt{2^{2}} \sqrt{x^{4} } \sqrt{7x} + 8x^{3} \sqrt{7x}[/tex]

= [tex]5x*2x^{2} \sqrt{7x} + 8x^{3} \sqrt{7x}[/tex]

Further solve,

= [tex]10x^{3} \sqrt{7x} + 8x^{3} \sqrt{7x}[/tex]

= [tex]18x^{3} \sqrt{7x}[/tex]

The expression equivalent to [tex]5x\sqrt{28x^{5} } + 8x^{3} \sqrt{7x}[/tex]  is  [tex]18x^{3}\sqrt{7x}[/tex].

To know more about how to solve quadratic equation?, here

https://brainly.com/question/1214333

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Solve for y.
Enter your answer in the box.
y =

Answers

I'm not sure but find the formula of a triangle to help you find Y

Find the slope of the line that passes through (1,4) and (10,3)​

Answers

Answer:

-1/9

Step-by-step explanation:

m=y2-y1/x2-x1

3-4=(-1)

10-1=9

-1/9

hope this helps :3

if it did pls mark brainliest

A baseball organization has 209 players. It wants to buy sweatshirts or jackets for players’ warmups.

Sweatshirt $38
Jacket $50

What is the difference in the total price of the sweatshirts and the jackets for all 209 players?

Answers

Answer:

$2508

Step-by-step explanation:

209*38=$7942 for sweatshirts

209*50=$10450 for jackets

10450-7942=$2508 difference

Maria dis you?? Sorry I accidentally achived the padlet and cant unachive it and padlet is going wacko rn so me and Leo have greed to try padlet again he will be the one to make a new padlet. Is that ok with you?

can yall help plz asapppp ;p

Answers

i believe a is the answer
Yeah the answer is b because the variables are right

Identify the terms and like terms in the expression.
2n - n - 4 + 7n

Answers

Answer:

8n-4

Step-by-step explanation:

2n-n-4+7n

=2n-n+7n-4

=8n-4

The terms are 2n, - n, - 4 and 7n. The like terms are 2n, -n and 7n

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We are given the expression as

2n-n-4+7n

WE need to solve the problem first then identify.

=2n-n+7n-4

The terms are 2n, - n, - 4 and 7n

The like terms are those which contain same variable with same degree.

2n, -n and 7n

Now solving the like terms we get;

=8n-4

Hence, The terms are 2n, - n, - 4 and 7n. The like terms are 2n, -n and 7n

To know more about an expression follow;

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Shawn missed 15% of the problems on his math test if he missed six problems how many problems were on the test

Answers

There are 40 questions on the test

The second statement is the
of the first
A. contradiction
B. converse
C. inverse
D. contrapositive

Answers

Answer:

The second statement is the contrapositive of the first.

Step-by-step explanation:

We know that x → y is a conditional statement read as 'if x then q'.

The converse EXCHANGES the hypothesis and conclusion such as:

y → x

The 'contrapositive' statement basically NEGATES the converse of the conditional such as:

¬y → ¬x

Coming back towards the question,

Given

x ⇒ y

¬y ⇒ ¬x

Therefore, the second statement is the contrapositive of the first.

Answer:

D. Contrapositive

Step-by-step explanation:

got it right on the test

Zoe placed colored blocks on a scale in science class. Each block weighed 0.8 ounces. The total weight of all the colored blocks was 12.8 ounces. How many blocks did Zoe place on the scale? Write and solve an equation to find the answer. number of blocks =

Answers

Answer:

16 blocks. 12.8=(.8)x

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

because it both so it come out to be 16

i will give 50 and branlist and like and 5 stars

Answers

Answer:

GO TO HELL AND THANKS FOR MY POINTS BACK

Step-by-step explanation:

400 students were
surveyed about their
favorite vegetable. How
many students picked
carrots and zucchini as
their favorite?

Answers

Answer:

180

Step-by-step explanation:

45% of 400 is 180

Answer:

Should be 180 if I read it right

James is a DJ at local radio station. One day, James offers a cash prize to the first caller who correctly answers a rather difficult trivia question. James’ assistant screens and records all incoming calls, and lets James know when the first call with the correct answer has been received; only then does James air the recording of the caller responding correctly. The probability that a randomly selected caller will correctly answer the trivia question is 0.1.

What is the probability that the third caller is the first to correctly answers the question?


0.01

0.0729

0.081

0.09

0.9

Answers

0.9 eekkkni hope it help

Using the inverse binomial distribution, it is found that there is a 0.081 = 8.1% probability that the third caller is the first to correctly answers the question.

The number of callers that correctly answer the question is a binomial variable, however, we want the probability of the third caller being the first to answer the question correctly, hence it is a negative binomial variable.

Inverse binomial:

It is the number of trials until q successes of a binomial variable, with p probability of success.

The probability mass function is:

[tex]P(X = x) = C_{x+q-1,q-1}(1 - p)^xp^q[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In this question:

Number of trials until 1 success, hence [tex]q = 1[/tex].0.1 probability of a success on each trial, hence [tex]p = 0.1[/tex].

The probability that the third caller is the first to correctly answers the question is P(X = 3), hence:

[tex]P(X = x) = C_{x+q-1,q-1}(1 - p)^xp^q[/tex]

[tex]P(X = 3) = C_{3,0}(0.9)^2(0.1)^1 = 0.081[/tex]

0.081 = 8.1% probability that the third caller is the first to correctly answers the question.

To learn more about the inverse binomial distribution, you can take a look at https://brainly.com/question/14581720

Clara and Toby are telemarketers. Yesterday, Clara reached 4 people in 10 phone calls, while Toby reached 3 people in 8 phone calls. If they continue at those rates, who will reach more people in 40 phone calls? Use the drop-down menu to show your answer.

Answers

Answer:

Clara will reach 16 people while Toby will reach 15 calls.

4 out of ten=16 out of 40

3 out of 8=15 out of 40

Please help me with this question I don’t understand the picture is in the link if u can help me thank you!!!

Answers

Answer:

34

Step-by-step explanation:

Sum means that you add.

column means the first set going verticly.

so 7 + 2 + 11 + 14

9 + 11 + 14

20 + 14

34

Answer:

34, its asking the sum of the 1st column. Sum means you have to add. So you add 7+2+11+14 and get the total of 34.

two equal cubes with sides 6cm are placed one above the other forming a cuboid. Find the total surface area of the cuboid thus formed​

Answers

Answer:2 cm

Step-by-step explanation: isk

Part A: Marguerite rented a truck at $125 for 2 days. If she rents the same truck for 5 days, she has to pay a total rent of $275.

Write an equation in the standard form to represent the total rent (y) that Marguerite has to pay for renting the truck for x days. (4 points)

Part B: Write the equation obtained in Part A using function notation. (2 points)

Part C: Describe the steps to graph the equation obtained above on the coordinate axes. Mention the labels on the axes and the intervals. (4 points)

50 POINTS SHOW WORK PLEASE AND IF DO YOU WILL GET BRAINLIST.

Answers

Hį įshahhshsussusshszsgsgeuehdbf

. Write your answer in simplest form.
7/3 divided 9

Answers

The answer is 7/27.......

Answer:

7/27

Step-by-step explanation:

Natalie and Anjali each improved their yards by planting hostas and shrubs. They bought their supplies from the same store. Natalie spent $86 on 2 hostas and 7 shrubs. Anjali spent $104 on 8 hostas and 4 shrubs. Find the cost of one hosta and the cost of one shrub

Please help it is on solving systems of equation using all methods

Answers

Answer: One hosta= $8

One shrub = $10

Step-by-step explanation:

Let the cost of one hostas be h

Let th cost of one shrub be s.

The question can be rewritten into am equation as:

2h + 7s = 86 .......... equation i

8h + 4s = 104 ........ equation ii

Multiply equation i by 8

Multiply equation ii by 2

16h + 56s = 688 ...... equation iii

16h + 8s = 208 ........ equation iv

Subtract equation iv from iii

48s = 480

s = 480/48

s = 10

One shrub cost $10

Put the value of one shrub into equation ii

8h + 4s = 104

8h + 4(10) = 104

8h + 40 = 104

8h = 104 - 40

8h = 64

h = 64/8

h = $8

One hostas cost $8

what is the answer of this question​

Answers

We know that 4 times 64 equals 256, so know we need to figure out what 64/4 is. 16. Now, 16/4, which is 4. 4 to the power of 4 equals 256.

Answer: 4

. What is 42% of 80?

Answers

Answer:

The answer is 33.6

Step-by-step explanation:

hope that helps

Just multiply 80 and 0.42 then you will get the answer.

42% of 80 is going to be 33.6.

I need help with number 29.

Answers

Answer:

f and g i think

Step-by-step explanation:

Alyssa is painting 3 of the walls in her art studio blue. Each of the walls is 8.3 feet tall and 7.5 feet wide. Round the length and width to the nearest whole number (ones). Then estimate the area Alyssa will paint. Write equations to show your work.

Answers

Answer: below(=

Step-by-step explanation: Given that,

dimensions of wall = 8.3ft by 7.5ft

height of wall = 8.3

width of wall = 7.5

there are total 3 walls in a bedroom to be painted blue.

Formula to calculate area of one wall

Height x Width

Formula to calculate area of four walls

3 (Height x Width)

= 3( 8.3ft x 7.5ft)

= 3 (62.25 ft²)

= 186.75 ft²

So area Alyssa will paint = 186.75 ft²

Answer: below(=

Step-by-step explanation: Given that,

dimensions of wall = 8.3ft by 7.5ft

height of wall = 8.3

width of wall = 7.5

there are total 3 walls in a bedroom to be painted blue.

Formula to calculate area of one wall

Height x Width

Formula to calculate area of four walls

3 (Height x Width)

= 3( 8.3ft x 7.5ft)

= 3 (62.25 ft²)

= 186.75 ft²

So area Alyssa will paint = 186.75 ft²

(8.5×108) + (2.3×107)

Answers

This is what I got hope it helps

Solve by elimination: (x + 7y = 12) (3x - 5y = 10) *

Answers

Answer:

Step-by-step explanation:

What is the image point of (-3 5) after a translation left 2 units and up 4 units?

Answers

Answer:

(-5, 9)

Step-by-step explanation:

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6
4
3
1
1
2 3
4 5 6
7 8
y = -x + 2
y = x + 2
y =
= -x + 2

Answers

Answer:

For Me Imposible Question!!

Step-by-step explanation:

Which of the following statements is true about the three quadrilaterals? (4 points)

a
D and E are similar but not congruent.

b
E and F are similar and congruent.

c
D and E are similar and congruent.

d
F and D are similar but not congruent.

Answers

Answer: it’s. Q and w are similar but not congruent

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