Mathematics Middle School

Is y=9x-8 a function

Answers

Answer 1

yes, it is a function

Answer 2

Yes it is a function

Related Questions

Pls help me I need help

Answers

4(5)-12
20-12
8

It would equal 8

The answer would be 8

36 is 75% of what number

Answers

The answer should be 48

The percentage is the method of distributing the numbers in a range from 0 to 100. The number 36 is 75% of 48.

To find the number that 36 is 75% off, use the following steps:

Remember that per cent means "per hundred." So, 75% can be written as the fraction 75/100 or the decimal 0.75.

Let's call the unknown number "x". We want to find the value of "x" that satisfies the equation: 36 = 0.75 * x.

To solve for "x", we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 0.75.

36 / 0.75 = (0.75 * x) / 0.75

Simplifying the right side, we get:

36 / 0.75 = x

Evaluating the left side of the equation, we have:

48 = x

Therefore, 36 is 75% of 48.

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A store manager timed Janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. It took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. What was the average time it took Janette to fold and put away all four items?

Answers

The Average, or the mean of the times, is the sum of the times divided by the number of times.

26.1 + 24.3 + 32.8 + 18.2 = 101.4
101.4 / 4 = 25.35 seconds.

25.35 seconds is the average

25.35 seconds.
26.1+24.3+32.8+18.2=101.4
101.4/4 (the number of items)=25.35 per each item

indira, bonnie and chang all work at the same pet store. indira works every other day. bonnie works every fourth day. chang works every fifth day. today they all work together. how many days will it be until they work together again?

Answers

This is asking for the LCM between 2,4, and 5. It is 20. So, the answer is 20 days.

Hope this helps!

Jeffery read a book with one-fifth the pages of the book Toby read. Which variable expression represents the number of pages in the book Jeffery read?

Answers

t/5 since toby only read 1 fifth of it

Answer:

1/5

Step-by-step explanation:

i took the test its right

Please answer questions 1 and/or 2, thnx

Answers

55.79 = 0.99d + 39.95

55.79 - 39.95 = 15.84

0.99d = 15.84

0.99d/0.99 = 15.84/0.99

d = 16

2) Equation = 12.6 million = 4(x) + 1 million
12.6 million - 1 million = 11.6 million
11.6 million/4 = x
x = 2900000

hope this helps

1. 39.95 + 0.99d= 55.79

0.99d=55.79-39.95
0.99d= 15.84
d= 15.84/0.99 =16

Ans = 16 DVDs

2. 12600000-1000000= 4p

12600000-1000000=4p
12500000=4p
p= 12500000/4
p= 3125000 or 3.125 million

What is the value of y?

Answers

64............................

well you know no matter what a triangle will always equal 180 degrees so you take 37 + 79 and you get 116 which you then subtract from the 180 you know a triangle will always be and you will get y=64

Y times y of the power to 4

Answers

y * y^4 = y^5

Remember that y equals y^1. Also when multiplying exponents with the same base, add the given exponents. 1+4=5

Final answer: y^5

Richie has 27apple he buys 12 more apples how many apples does he have how ?

Answers

27 + 12
39

Hope this helps!

Richie has 39 apples

Please help me on number 12 :)

Thank you ! :)

Answers

2 divided by 5

2/5

Hope i helped =)

A group of students and teachers are going on a field trip? One ninth of the group will fit on 1/3 of a school bus. How many buses are needed to transport the entire group?

Answers

3/9 will fit on one bus so it will take 3 buses to fit 9/9 of the students, which 9/9 is the whole group.

The entire group will need 3 buses to transport them on the field trip.

How many buses will be needed?

Let total number of people in the group be represented by 'P'

We are told that 1/9 of the group can fit on 1/3 of a school bus.

So, this shows 1/9 of P = (1/3) of a bus; we will write an equation to find the total number of buses needed

==>

(1/9)P = (1/3) bus

P = (1/3) bus * 9

P = 9/3

P = 3 buses.

Answers

59 and 61 are prime
answerss

The prime numbers are 59 and 61

Which problem can be solved using base-10 blocks? A. Simplify x − (x + 2). B. Model the sum of 950 and 26. C. Order 2.7, 3.1, and 2.9 from greatest to least. D. Plot the points (2, 5) and (4, 9).

I need help ASAP

Answers

The answer is B.ejdjshsjdj

one third of a number

Answers

Well the thing is you didn't tell us which number but if it is 12 then i strongly believe that the answer is 3/9

One third of a number is same as n/3 or 1/3 · n

To find 12 times 13, I double 13 and halve 12 and then multiply

Answers

No just multiply them 12 times 12 is 144 just add 12 so it could be 12 times 13 and it would be 156

13
x12
——-
26
+130
——-
156

So first you do the back of 12, 2 times the back of 13, which is 6. Then the back of 12, 2 times the front of 13, which is 2. So you get 26. Then you go to the next line and put a zero, then the same thing as you did with the back of 12, but with the front, which is 1. So 1 times 3 and 1 times 1, so you get 13 and the zero you added earlier, 130. So you get 26 and 130, add them to get 156.

10 power of 1 x 0.23

Answers

10^1=10
10x0.23=final answer=2.3

What is the relationship between 5.34 x 10^5 and 5.34 x 10^-2?

5.34 x 10^5 is 100,000 times greater/less than 5.34 x 10^-2

5.34 x 10^5 is 1,000,000 times greater/less than 5.34 x 10^-2

5.34 x 10^5 is 10,000,000 times greater/less than 5.34 x 10^-2

5.34 x 10^5 is 100,000,000 times gteater/less than 5.34 x 10^-2

Answers

5.34 x 10^5 is 10,000,000 times greater/less than 5.34 x 10^-2
5.34 x 10^5 = 10,000,000 and 5.34 x 10^-2 = 0.0534 thus c: is your answer.

Answer: THAT MAKES NO SENCE

Step-by-step explanation:

At a bake sale, brownies were sold for .75 each, cookies were sold for .50 each. There were 10 more cookies sold than brownies. The total amount earned was 40. How many brownies and cookies were sold

Answers

75b + .5c = 40 c = b + 10 .75b + .5(b + 10) = 40 .75b + .5b + 5 = 40 1.25b = 35 b = 28 c = 38.

the lowest temperature ever recorded in cloud city was 11 degrees farienheit the highest was 124 degrees Fahrenheit higher than the record low temperature could anyone help me solve this

Answers

It's simple, just add 124 to 11. 124 + 11 = 135 degrees.

If the highest was 124 degrees Fahrenheit from the lowest record temperature, then all you do is add 11 degrees Fahrenheit to 124 degrees Fahrenheit. It equals 135 degrees Fahrenheit.

A sidewalk is built 12 bricks wide by laying each brick side by side. How many inches wide is this seidewalk if each brick measures 3 7 over 8 inches wide ??

Answers

1 brick = 37/8
37/8 x 12 = 55.5 inches wide

Hope this helps!! :)

Answers

25.35 seconds. Add all 4 numbers and divide by 4

Answer:

25.4 seconds

Which table best represents the steps to solve the equation 8 + = 4?

Answers

Usaully if you add a larger number with a smaller negative number you will get your answer is 8 + -4+4

What are the dimensions of his bedroom

Answers

There are several possibilities to this. Square feet it just area. Some dimensions are 2ft and 90ft, 4ft and 45ft, or possibly 9ft and 20ft.

James is reading the latest book by his favorite science fiction author. The table shows the number of pages James read over different periods of time. Calculate the proportionality constant from the table in terms of pages per minute.
A) 0
B)1/2
C)8
D)12
Time (minutes)8 16 24
Pages Read 4 8 12

Answers

The proportionality constant from the table in terms of pages per minute is 1/2.

option B.

What is the proportionality constant ?

The proportionality constant from the table in terms of pages per minute is calculated by applying the following formula.

The given time and pages read are;

Time (minutes)-------- 8 16 24

Pages Read ----------4 8 12

Mathematically, the formula for the proportionality constant is given as;

proportionality constant = pages read / time taken

proportionality constant = 4 pg / 8 min = 8 pg / 16 min = 12pg / 24 min

proportionality constant = 1/2 pg/min = 1/2 pg/min = 1/2 pg/min

Thus, the proportionality constant from the table in terms of pages per minute is calculated by dividing the pages read by the time taken to read the pages.

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What is the domain for the given function?
X. Y
-6. -7
-1. 1
0. 9
3. -2

A. {X|x= -6, -1, 0, 3}
B {y|y=7,-2,1,3,9
C ×|x = -7,-6,-2,-1,0,1,3,9
D. Y|y =-7,-6,-2,-1,0,1,3,9

Answers

The Answer To Your Question Is C I Believe :)

domain is values of x

so answer is
A. {X|x= -6, -1, 0, 3}

What is the relationship between 8.76×106 and 8.76×102 ? Select from the drop-down menus to correctly complete the statement. 8.76×106 is times than 8.76×102 .

Answers

8.76 x 10^6 is 10,000 times greater than 8.76 x 10^2.

Answer:

[tex]8.76\times 10^6[/tex] is 10,000 times [tex]8.76\times 10^2[/tex].

Step-by-step explanation:

Let [tex]8.76\times 10^6[/tex] be n times [tex]8.76\times 10^2[/tex].

We have been given two numbers [tex]8.76\times 10^6[/tex] and [tex]8.76\times 10^2[/tex].

We can represent this information in an equation as:

[tex]8.76\times 10^2\cdot n=8.76\times 10^6[/tex].

[tex]\frac{8.76\times 10^2\cdot n}{8.76\times 10^2}=\frac{8.76\times 10^6}{8.76\times 10^2}[/tex]

[tex]n=\frac{8.76\times 10^6}{8.76\times 10^2}[/tex]

Using exponent property of fractions [tex]\frac{a^m}{a^n}=a^{m-n}[/tex], we will get:

[tex]n=\frac{8.76\times 10^{6-2}}{8.76}[/tex]

[tex]n=1\times 10^{4}[/tex]

[tex]n=10,000[/tex]

Therefore, [tex]8.76\times 10^6[/tex] is 10,000 times [tex]8.76\times 10^2[/tex].

Round 8.984 to nearest hundredths, tenths, ones and tens

Answers

Hundredths: 8.98
Tenths: 9 whole
ones: 9 whole
tens: there is none

Hundredths = 8.98

Tenths = 9.0

Ones = 9

Tens = 10

Hope I helped :)

Use complete sentences to describe why postulates are helpful.

Answers

Answer:

Postulates are the base structure of Mathematics.

Step-by-step explanation:

Postulates are suggestion or assumptions that something is true based on reasoning, for example, the definition of a point in Euclidian Geometry.

Therefore, mathematics is grounded in systems of postulates that are tacitly true. Those postulates are used to define and demonstrate theorems, which are the strong structure of every law in Mathematics.

The postulates are helpful as they are taken to be true without proof and are basic structure from which lemmas and theorems are derived .

What are postulates?

A statement, also known as an axiom, which is taken to be true without proof. Postulates are the basic structure from which lemmas and theorems are derived. The whole of Euclidean geometry, for example, is based on five postulates known as Euclid's postulates.

According to the question

Postulates are helpful because they are basic structure from which lemmas and theorems are derived and they are also known as an axiom, which is taken to be true without proof.

Hence, postulates are helpful as they are taken to be true without proof and are basic structure from which lemmas and theorems are derived .

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Salumé bought 4.59 pounds of lobster for $39.98. How much did she spend per pound of lobster? Round your answer to the nearest cent. A. $7.11 B. $35.39 C. $8.71 D. $9.99

Answers

The answer is C. Take the amount of money that she spent divided by the amount of lobster that she bought and you will get how much she spent per pound.

c. 39.98/4.59 =8.71.…

Jeanie has a 3/4 piece of ribbon. She needs one 3/8 yard piece and a 1/2 yard piece. Can she cut the piece of ribbon into the two smaller pieces? Explain

Answers

Jeanie cannot cut the piece of ribbon into two smaller pieces.

[tex] \frac{3}{4} = \frac{6}{8} [/tex] if you multiply the numerator and the denominator for [tex] \frac{3}{4} [/tex] by 2.
She needs [tex] \frac{1}{2} [/tex] yard piece, which is [tex] \frac{4}{8} [/tex] if you multiply the numerator and the denominator for [tex] \frac{1}{2} [/tex].
Now that all the numbers have the same denominator, you can subtract the numerators which is: 6 - 4 - 3 = -1
This means that she cannot cut the ribbon into two smaller pieces.

~I hope this helped!!

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