Mathematics Middle School

A car travels 42 miles for every 2 gallons of gasoline. What is the unit rate?

Answers

Answer 1

Answer:

21 miles per 1 gallon

Step-by-step explanation:

The unit rate is how many to 1 so, 42 divided by 2 equals 21 so, the answer is given.

PLZ MARK BRAINLIEST!!!

Answer 2

Answer:

21 mpg

Step-by-step explanation:

The unit rate is:

  42 miles

------------------- = 21 mpg

 2 gallons

Related Questions

Which is the graph of g(x) = [x+3]

Answers

Answer:

Option D

Step-by-step explanation:

The graph of g(x) = ⌈x + 3⌉ is the graph of the parent function h(x) = ⌈x⌉ that has been shifted to the left 3 units.

The correct choice is D

Please help. The correct and best answer gets brainiest! 29 points!!
(please make sure you are correct and show your work, no guessing)

Answers

Answer:(15, 100)

Step-by-step explanation:

first find the coordinates of the point above (3, 20)

you just look at the x axis and where the point is in this case x would be 6 and then you find y which would be 40

so the coordinate would be (6, 40)

now subtract (6, 40) by (3, 20)

6-3= 3

40- 20= 20

you get the first coordnites which is what you add (12,80) to

12 +3= 15

80+ 20= 100

you get the coordinates (15, 100)

PLS NEED HELP ASAP WITH TRIG NEED TO SHOW FULL WORK

Answers

Answer:

10ft

Step-by-step explanation:

Answer:

14.4 m

Step-by-step explanation:

let the height of the tower from line of sight be x, then

tan23° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{x}{30}[/tex] ( multiply both sides by 30 )

30 × tan23° = x , thus

x ≈ 12.7 m

Total height of tower = 12.7 + 1.7 = 14.4 m ( to the nearest tenth )


Compared to its 'parent' function f(x)=x^2, describe the changes if f(x)=-x^2-3

Answers

Answer:

It is inverted and shifted down 3 units.

Red is f(x) = x^2

Purple is f(x) = -x^2 -3

Step-by-step explanation:

Plz, answer this question I need help. I'll mark you as brainliest and give you 5 stars.

Answers

Answer:

pretty sure its D but idk

Step-by-step explanation:

Which point is located at (6,2)?

A) A
B) E
C) K
D) R.
help like now plz​

Answers

Answer:

A

Step-by-step explanation:

-3x+ 5
2. = -2
Solve this equation (this is URGENT)

Answers

Answer:

18

Step-by-step explanation:

-3x + 52 = 2

54 = 3x

x = 18

someone plz answer this

Answers

C is the correct answer

Answer: a

Step-by-step explanation:

It is translation from pqr

I just need a bit more clarification (just checking if my answer is right)
I put: C
But I just want more clarification.

Answers

Answer:

I think it's right. you should be fine

What are the leading coefficient, constant term and degree, if any, of the algebraic expression (x-1)(x^2 +1)
a.
leading coefficient: 1; constant term: -1; degree: 3
c.
leading coefficient: 1; constant term: 1; degree: -3
b.
leading coefficient: -1; constant term: 1; degree: 3
d.
none, expression is not a polynomial


Please select the best answer from the choices provided

A
B
C
D

Answers

The answer it D because there is no 3 for the expression

Find the 23rd term of this sequence -25,-15,-5,5....

Answers

Answer:

195

Step-by-step explanation:

To find the 23rd term of this sequence, we can use the arithmetic sequence formula [tex]a_{n} =a_{1} +(n-1)d[/tex] where,

[tex]a_{n}[/tex] = [tex]n^{th}[/tex] term

[tex]a_{1}[/tex] = first term

[tex]n[/tex] = term position

[tex]d[/tex] = common difference

[tex]a_{23}=-25+(23-1)10[/tex]

[tex]a_{23} =195[/tex]

Brainliest). The roof of a castle tower is shaped like a cone. The base of the cone is 24 m across and the height is 16 m. The slant height of the roof, which is unknown, is the hypotenuse of the right traingle formed with the radius and the height of the cone. Question1) Sketch the roof of the castle tower. Label the known lengths as described and label the unknown length as x. (Question2) What is the slant height of the roof?. MAKE SURE YOU SHOW YOUR WORK. WILL MARK BRAINLIEST. For question B) you need to use the radius and you need to show your work. Will Mark Brainliest. ​

Answers

Answer:

I THINK THE SLANT IS 14M (sorry if i'm wrong)

Step-by-step explanation:

4. Find the volume of the prism.
3 mm
4 mm
4 mm

Answers

Answer:

48

Step-by-step explanation:

3 times 4 times 4 = 48

the volume of the prism is 48 if im wrong im sorry.

What is the slope of the line that passes through the points (6, 4) and (3,8)?

Answers

Answer:

-5/3

Step-by-step explanation:

you have to do slope formula

Explain how to graph the point (6,4) on a coordinate plane.

Answers

Answer:

here is how

Step-by-step explanation:

the x (6) is the horixontal ways on the co-ordinate plane. you go right until you reach the six. the y (4) is vertical. take the point that is on 6,0. and move it up until you see it on 4. now you have the coordinates 6,4.

Maria has 7 gal of water Mike has 23 qt of water. How many more pints of water does Maria have then Mike

Answers

Answer:

i think 10

Step-by-step explanation:

there is 8 pints in 1 gallon and 2 pints in 1 quart so that means in 23 quarts theres 46 pints and in 7 gallons there is 56 so 56-46 is 10 if that is what the question is asking lmk if the question is wrong

3 is what percentage of 5

Answers

Answer:

60%

Step-by-step explanation:

is means equals and of means multiply

3 = P * 5

divide each side by

3/5 = P

.6 = P

Change to a percentage by multiplying by 100

60%

Answer: 60%

Step-by-step explanation:

3/5 * 100

3 * 20

4. Francisco says, "36 is 75% of 48." Is Francisco correct or incorrect?
Show your reasoning using a Tape Diagram."

Answers

Answer:

see below

Step-by-step explanation:

Is means equal and of means multiply

36 = 75% * 48

36 = .75* 48

36 = 3/4* 48

36 =36

Using the tape diagram

Divide 48 into 4 pieces

12    12     12    12

Then circle 3 of them

12  +12 + 12

36

Answer:

Correct

Step-by-step explanation:

75% of 48

75/100 × 48

3/4 × 48

36

Divide the tape of length 48 units into 4 parts, 3 parts add up to 36

ok so I must be stupid but pls help

Answers

Your not stupid- Hahahaha

It is A and D

They both have a volume of 80

2. Why was Susan Weiss' work not


considered important?

Answers

Answer:

she was a woman.

PLEASE HELP ME ILL GIVE BRANLIEST!!! (and 50 points!)

A company mixes two kinds of cleansers to get a blend they sell for 59 cents a liter. One of the cleansers costs 50 cents per liter, and the other 80 cents per liter. How much of each kind should be mixed to get 2,000 liters of the blend?

Answers

Answer:

x = the 50c cleanser

y= the 80c cleanser

x= 1400 liters

y=600 liters

I'm pretty sure this is right

pls help i give u brainliest and 5 stars

calculate the surface area of a solid box in the shape of a cube with side length 1cm ​

Answers

Answer:

6 cm ^2

Step-by-step explanation:

Answer:

The surface area is 6 cm².

Step-by-step explanation:

Given that a cube has side lengths all the same. Then you have to use surface area formula, S.A = 2(length×width) + 2(length×height) + 2(width×height) :

Let length = 1cm,

Let width = 1cm,

Let height = 1cm,

[tex]s.a = 2(1 \times 1) + 2(1 \times 1) + 2(1 \times 1)[/tex]

[tex]s.a = 2 + 2 + 2[/tex]

[tex]s.a = 6 \: {cm}^{2} [/tex]

is the relation a function?
please help.

Answers

Answer:

Yes

Step-by-step explanation:

A function has one input (x-value) per output (y-value).

In other words, a relation that does not repeat any x values is a function.

{(3,4) , (5,0) , (2,4) , (-5,-5)}

The domain of the relation is:

{-5,2,3,5}

Since none of the numbers repeat in the domain, the relation is a function.

Please answer CORRECTLY !!!!! WILL MARK BRAINLIEST !!!!

Answers

Answer:

A!

Step-by-step explanation:

Ik it's been like a month since you asked the question, but domain is from the lowest x point to the highest x point. So, from the farthest left to the farthest right basically. Range is lowest y point to highest y point.

6×3/16
fraction in simplest form​

Answers

Answer:

9/8

Step-by-step explanation:

Answer:

[tex]\frac{9}{8}[/tex] or [tex]1\frac{1}{8}[/tex]

Step-by-step explanation:

6x3/16 equals 18/16 divide by 2 equals 9/8 or 1 1/8

(01.01)

Evaluate 9 − 3 ⋅ 2 + 4. (1 point)

Group of answer choices

Answers

Answer: 7

Step-by-step explanation: 9-3•2+4

9-6+4

=7

You are taking an online survey on your experience at Taco Bell. There are 5
questions on the survey. For the first three questions you can answer Below Average,
Average, or Above Average for each question. The last three questions you can respond with
either Agree or Disagree. How many total outcomes are there for this survey?

Answers

Answer:

just times it

Step-by-step explanation:

if there is 5 question and you have to choose average or below average and agree or disagree times 5 by how many answers there are

Answer:

There are 21 total outcomes for the Taco Bell survey.

Combine the like terms to create an equivalent expression:
−3x-6+(-1)

Answers

Answer:

-3x-7

Step-by-step explanation:

The like terms here are -6 and -1. When we add the two, we get -7. Therefore, the answer is -3x-7. Hope this helps!

Can someone help with the following question. Explain why it's the answer

Thank you.

Answers

I think it’s A

Because B and D are equations and C has a less than sign.

The shelf life of a packed food follows a normal distribution, with a mean of 60.5 days and a standard deviation of 7.2 days. Rounded to the nearest hundredth, what is the probability that a package lasts fewer than 50 days?

Answers

Answer:

[tex]P(X<50)=P(\frac{X-\mu}{\sigma}<\frac{50-\mu}{\sigma})=P(Z<\frac{50-60.5}{7.2})=P(z<-1.46)[/tex]

And we can find the probability using the normal standard distribution or excel and we got:

[tex]P(z<-1.46)=0.0721[/tex]

Step-by-step explanation:

Let X the random variable that represent the shelf life of packed food of a population, and for this case we know the distribution for X is given by:

[tex]X \sim N(60.5,7.2)[/tex]  

Where [tex]\mu=60.5[/tex] and [tex]\sigma=7.2[/tex]

We are interested on this probability

[tex]P(X<50)[/tex]

For this case we can solve this problem with the z score formula:

[tex]z=\frac{x-\mu}{\sigma}[/tex]

If we apply this formula to our probability we got this:

[tex]P(X<50)=P(\frac{X-\mu}{\sigma}<\frac{50-\mu}{\sigma})=P(Z<\frac{50-60.5}{7.2})=P(z<-1.46)[/tex]

And we can find the probability using the normal standard distribution or excel and we got:

[tex]P(z<-1.46)=0.0721[/tex]

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