Mathematics Middle School

1. Find the value for the expression when h=13: 9 + h - 3
2.Find the value for the expression when x=6 and y= 3: x-y
3. Find the value for the expression when x=9: 3x please help

Answers

Answer 1
1: 9+13-3= 19

2: 6-3= 3

3: 3(9)= 27
Answer 2

Answer:

person above me is right

Step-by-step explanation:

Related Questions

*TEN POINTS* Answer the question. Deals with functions.

Answers

Answer:C is your answer

The function is limited to y=3

Step-by-step explanation:

Help please!!
A triangle has vertices at (3, 5), (−5, 3), and (−3, 4). What are the coordinates of the vertices of the image after the translation (x, y) - (x + 3, y − 1)?

Answers

Answer:

(6,4), (-2,2), (0,3)

the triangle is translated 3 units to the right and 1 unit down

Step-by-step explanation:

given vertices :

(3,5), (-5,3), (-3,4)

in the given co ordinates the first one corresponds to the x co ordinate and

the  second one corresponds to the y co ordinate

after traslation :

(x,y) - > (x+3, y - 1)     (function)

new 3 co ordinates are:

(3+3, 5-1), (-5+3,3-1), (-3+3,4-1)

= (6,4), (-2,2), (0,3)

the triangle is translated 3 units to the right and 1 unit down

From 1903 to 1957, there were three baseball teams from New York. All were successful and they often met in the World Series. The New York Yankees often represented the American League, while the Brooklyn Dodgers and New York Giants often represented the National League. Make a two-way table and use that table to predict who would win the next time they meet. Be sure to explain why you make your prediction.

Answers

Answer: Whoever plays the best.

Step-by-step explanation:

Natalie inspects new pants at a factory. Of the first 56 pairs of pants she inspected 49 were acceptable. What is the experimental probability that the next pair of pants will be acceptable? answers
1. 1/2
2. 7/8
3. 5/4
4. 22/25

Answers

Answer:

B. 7/8

Step-by-step explanation:

Answer: 2.

Step-by-step explanation:

HELPP PLS NEED ASAP !!!!!!!!

Answers

Answer:

3 (-1,4)

4 point d

5 point a

6 (2,[tex]-\frac{1}{2}[/tex])

7 move three units to the right three units down

Step-by-step explanation:

A car costs $30,000 when purchased as new and depreciates at a rate of 18% per year.

1. Write an exponential decay model to represent the situation. Be sure to define the variables.
2. Find the value of the car after 10 years.

Answers

9514 1404 393
Answer:
v(t) = 30000×0.82^t . . . value in dollars after t years
v(10) ≈ 4123 . . . . dollars
Step-by-step explanation:
The general form of the decay model is ...
f(t) = f(0)×(1 -decay rate)^time
where the decay rate is a fraction between 0 and 1, and the time is expressed in the same time units as the decay rate. The multiplier f(0) is the initial value that is decaying.
In this problem, the initial value is $30,000 and the decay rate is 18% per year. So, we can write a function v(t), where v is the car's value in dollars, and t is the number of years after it starts depreciating.
v(t) = 30,000×(1 -0.18)^t
v(t) = 30,000×0.82^t
__
The car's value in 10 years is ...
v(t) = 30,000×0.82^10 ≈ 4123.44
The value of the car after 10 years is about $4,123.

HELP PLEASE
use the given information to answer each question.

7. A dress that normally sells for $72 is on sale for $45. what is the percent decrease in the price?

8. A home purchased for $120,000 in 2012 is sold for $156,000 in 2015. what is the percent increase in the price?

9. the CD warehouse purchases CDs for $6 each and sells them for $9 each. what is the percent increase in the price?

10. the CD warehouse is having a clearance sale. A CD player that originally sells for $60 is now priced at $36. what is the percent decrease in the price?

11. the local highschool sold 1914 tickets this year to its spring musical. That was 174 more rickets sold than last year. what is the percent increase in the number of tickets sold?

12. Ken's heart rate went from 74 beats per minute while resting to 148 beats per minute while exercising. What is the percent increase In his heart rate

Answers

7.
Discounted price X
————————— = ———
Original Price 100

45 x
—- = —-
72 100

Cross multiply

45 times 100= 4500
72 times x= 72x

72x=4500

Divide

4500/72= 62.5%

Find the measure of each angle listed. The m∠ 2 = 153.

Answers

Angels 4,8 and 6 are 153

The rest are 27

Evaluate the following expression. Type your answer as a number.
14 - 2 ( 11 - 5 ) + 7²

Answers

Answer

The answer is 51

PEMDAS

14 - 2 ( 11 - 5 ) + 7^2
14 - 2 ( 6 ) + 7^2
14 - 2 ( 6 ) + 49
14 - 2 + 49
12+ 49

your answer is 71

WILL MARK BRAINLIEST!!!!!
For what values of x:
A. Are the values of the polynomial x^2-5x-3 and 2x-5 equal
B.Is the binomial 7x+1 equal to the trinomial 3x^2-2x+1
C. Is the trinomial -2x^2+5x+6 equal to the binomial 4x^2+5x?

Answers

Answer:

Bro imagine still playing fortnite o_o

Step-by-step explanation:

Jesse wants to make a sign for the recycling club afterschool.
Use the coordinate grid to find the area of the sign.


Group of answer choices

20 square feet

24 square feet

28 square feet

30 square feet

Answers

Step-by-step explanation:

add up all sides and you get 28 square feet

24? maybe i’m not sure. i just counted the squares, maybe each of the squares is 1 square feet.

on the speedway its 80 mph how many meters per second is it

Answers

I just looked this up but 35.7632

Answer:

35.76 Meters per second.

Step-by-step explanation:

(Exact: 35.7632 meters per second)

Is anyone else struggling with math

Answers

Answer:

Practice makes perfect

pls help plllllllssssssssssssssssssssssssssssss helpppppppppppppppppppppppp

Answers

Answer:is it a bill nye vid

Step-by-step explanation:

Which inequality would be used to answer the following:

Tickets to the zoo are $8 per person. If you have a maximum of $50 to spend on tickets, how many people can you take to the zoo?
Please Explain To
A. 8x > 50
B. 8 + x > 50
C. 8x < 50
D. x - 8 < 50

Answers

I’d say the answer is B

What is the vertex for this function? y=2x^2−12x+16
A) (-2, 3)
B) (-12, 36)
C) (3, -2)
D) (-2, 12)

Answers

Answer: Your Answer should be (-12, 36)

Step-by-step explanation:

y=2x^2-12x+16=(-12, 36)

That's your answer

The answer is totally B

There are 32 munchkins in the box. You want to distribute the munchkins to Amir and Isaac so that the ratio of Amir's munchkins to Isaacs is 5:8.

How many munchkins will each person get? Show/explain your work

Answers

Answer:

Amir will get 160/13 or 12 [tex]\frac{4}{13}[/tex] and Isaac will get 20 [tex]\frac{9}{13}[/tex]

Step-by-step explanation:

Lets say that the ratio is [tex]5x:8x[/tex]. Then, let's put this into an equation:

[tex]5x+8x=32[/tex]

Then, if we solve, we get:

[tex]13x=32, x=\frac{32}{13} \text{ or } 2\frac{6}{13}\\[/tex]

Then, we know that Amir's share is [tex]5x[/tex], so [tex]\frac{32}{13}\cdot5=160/13 \text{ or } 12 \frac{4}{13}[/tex].

Then, Isaacs share is [tex]8x[/tex], so [tex]8\cdot\frac{32}{13}=20\frac{9}{13}[/tex]

Hope it helps!!

Answer:

Amir = 12 and Isaac = 20

Step-by-step explanation:

Given

[tex]Amir : Isaac = 5 : 8[/tex]

[tex]Munchkins = 32[/tex]

Required

Amount of munchkins given to each person

For Amir, the amount is calculated as:

[tex]Amir's = \frac{Amir}{Amir + Isaac} * Munchkins[/tex]

[tex]Amir's = \frac{5}{5+8} * 32[/tex]

[tex]Amir's = \frac{5}{13} * 32[/tex]

[tex]Amir's = \frac{5 * 32}{13}[/tex]

[tex]Amir's = \frac{160}{13}[/tex]

[tex]Amir's \approx 12[/tex]

For Isaac, the amount is calculated as:

[tex]Isaac's = \frac{Isaac}{Amir + Isaac} * Munchkins[/tex]

[tex]Isaac's = \frac{8}{5 + 8} * 32[/tex]

[tex]Isaac's = \frac{8}{13} * 32[/tex]

[tex]Isaac's = \frac{8 * 32}{13}[/tex]

[tex]Isaac's = \frac{256}{13}[/tex]

[tex]Isaac's \approx 20[/tex]

can someone help me with this question? Please?

Answers

Answer:

Write the question.

Step-by-step explanation:

Write it so I can help you please.

PLEASE HELP URGENT!!! ILL GIVE BRAINLIEST

You roll a six-sided number cube and flip a coin. What is the probability of rolling a number greater than 4 and flipping heads? Write your answer as a fraction in simplest form.

The probability is __.

Answers

Answer:

The probability for the coin is 1/2. And the probability for dice is 2/6.

Step-by-step explanation:

The answer is 1/2 because it’s a 50/50 chance

I need some help please!!

Answers

Therefore, Alana earns $23 for walking 23 km. Therefore, Alana walks 73.5 km if she earns $60.

What is equation?

An equation is a mathematical statement that shows that two expressions are equal. It usually consists of variables, coefficients, and mathematical operations such as addition, subtraction, multiplication, and division. An equation can be solved to find the value of the variable that makes the statement true. Equations can be represented using symbols, such as the equals sign (=), or written out in words. Equations are used in many areas of mathematics and other fields, such as physics, engineering, and finance, to model and solve real-world problems.

Here,

To find the amount of money Alana earns for walking 23 kilometers, we can use interpolation method on the given table.

First, we need to find the interval in which 23 km falls, which is between 4 km and the unknown value x.

Next, we need to find the corresponding interval for the amount earned, which is between 7 dollars and an unknown value y.

Using the formula for interpolation, we can find the value of y as follows:

y = 7 + [(23-4)/(x-4)] * (16.5-7)

Simplifying this equation and solving for x, we get:

x = 37 km

Therefore, Alana earns $23 for walking 23 km.

To determine how far Alana walks if she earns $60, we can use extrapolation method on the given table.

First, we need to find the interval in which 60 dollars falls, which is between 16.5 dollars and an unknown value z.

Next, we need to find the corresponding interval for the distance walked, which is between 10 km and an unknown value w.

Using the formula for extrapolation, we can find the value of w as follows:

w = 10 + [(60-16.5)/(z-16.5)] * (x-10)

Simplifying this equation and solving for z, we get:

z = 73.5 dollars

Therefore, Alana walks 73.5 km if she earns $60.

It's worth noting that interpolation and extrapolation methods are approximations and may not be completely accurate.

To know more about equation,

https://brainly.com/question/28243079

#SPJ1

Please the whole page 50 Points each. Please don't steal my points just because

Answers

Answer:

a

Step-by-step explanation:

give

What is the total of x?

Answers

I think 16 I don’t know if I’m right
abcedghijklmnopqrstuvwzyz

Simplify the expression.

8(5k + 6m)

Answers

Answer:

40k+48m

 

have a good day :)

Answer:

40k + 48m

Step-by-step explanation:

using distributive property multiply 8 by 5 and 6

8 * 5 = 40

8* 6 = 48

Don't forget the measurements and you have your answer

40k + 48m

Help please I promise to give brainliest

Answers

Answer:

60

20

20

Step-by-step explanation:

Step-by-step explanation:

60

20

20

is the answer

dor the experimental probability

Find the area of the figure and choose the appropriate result.

Answers

Answer:

A- 24m

B- 18.9

C. 11.4

Total- 54.3

Step-by-step explanation:

Answer:

41.7 square meters

Step-by-step explanation:

First, rectangle A:

4 x 6 = 24 square meters

Second, rectangle B:

We know the length of this section is 3.5m. For the height/width, we can look at rectangle C. The height of C is 3.8m, and we see the part of C that is NOT part of B is 2m long. So we subtract 2 from 3.8 to find the height of B.

3.8 - 2 = 1.8m

Then, for the area of B:

3.5 x 1.8 = 6.3 square meters

Third, rectangle C:

3 x 3.8 = 11.4 square meters

Add up areas of A, B, C:

24 + 6.3 + 11.4 = 41.7 square meters

Mr. Jacobs wants to save over $3,400 for a car. He has a savings account balance of $800 and will make equal weekly deposits for the next 25 weeks. How much money should Mr. Jacobs deposit each week?

Answers

Answer:

i think its D

Step-by-step explanation:

but im not very sure about it

PLEASE HELP!! I'LL GIVE PRAINLIEST!!
What is the total surface area of this rectangular pyramid?

Answers

Answer: 10,956

Step-by-step explanation: A

I got the first answer for my answer (10,956)

cynthia needs to cover the entire surface of this cone with a new coat of paint. what is the minimum amount she will need?

Answers

Answer:

B

Step-by-step explanation:

The answer is B

That picture is very blurry Srry if it’s wrong

please i need help asap

Answers

I think it is c but that is just an educated guess.

Answer:

Step-by-step explanation:

radius = 0.25 inch

Volume of  ceramic ball = [tex]\frac{4}{3}\pi r^{3}[/tex]

                                        [tex]= \frac{4}{3}*3.14*0.25*0.25*0.25\\\\= \frac{0.19625}{3}\\\\=0.07 cubic feet[/tex]

Volume of 200 balls = 200 * 0.07

                                  = 14 cubic feet

1 cubic feet = 2 ounces

14 cubic feet = 2*14 =  28 ounces

Maria needs 3/4 foot of string to make each bracelet. How many feet of string does she need to make 9 bracelets?

Answers

Answer:

6.75 foot

Step-by-step explanation:

3/4 foot of string is needed for one bracelet so we multiply that with 9:

3/4*9

=27/4

=6.75 foot

If each bracelet needs 3/4 of string therefore in order to make it easier turn the fraction into decimal by dividing the numerator and the denominator which is 0.75 then multiply by the amount of bracelets which is 9 which gets you to 6.75 in a fraction it’s
6 3/4.
hope this helps!
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