Mathematics Middle School

A cell phone company charges $50 for the phone plus a monthly service charge of $30. The equation y =30x + 50 gives the cost y after x months. Which is true of the relationship between x and y?

A. It is linear and proportional.
B. It is not linear.
C. It is linear and nonproportional
D. It is not linear and nonproportional

Answers

Answer 1

Answer:

C. It is linear and nonproportional

Step-by-step explanation:

it does not pass through the orgin and it is a straight.

Answer 2

Answer:

Step-by-step explanation:

oopp

Related Questions

Russell has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980, 35% are dated from 1980 to 2000, and the rest are dated after 2000.

How many pennies in Russell’s collection are dated after 2000?

Plz help, I think I'm overthinking it.

Answers

480 pennies.

25% are dated before 1980, therefore:
1200(total):100 = 12 (1%)
12(1%)x25 = 300 (25%)

35% are dated from 1980 to 2000, therefore:
12(1%)x35 = 420 (35%)

25% are dated before 1980, 35% are dated from 1980 to 2000 and the rest are dated after 2000.
25% + 35% = 60%.
300(25%) + 420(35%) = 720.
60% = 720.
100%-60% = 40%.
40% is the amount of pennies that are dated after 2000.

The total (100%) of the pennies is 1200.
We also know that 60% of the total (1200) is 720.

1200(100%) - 720(60%) = 480(40%).

Therefore, the amount of pennies dated after 2000 in Russell’s Collection is 480.

Richard took a math quiz last week. There were 100 problems on the quiz and Richard answered 30% of them correctly. How many problems did Richard get correct?

Answers

Answer: he got 30 of them correctly

Step-by-step explanation: because 30% of 100 is 30.

Answer:

Step-by-step explanation:

100×3=300÷100

he got 3 correct.

Jacob drove a total of 15.235 miles over a 5-day period. How many miles did he drive each day if he drove the same distance each day?

3.047 miles

3.047 miles

3.407 miles

3.407 miles

30.047 miles

30.047 miles

30.407 miles

Answers

15.235=5x
x= miles per day
your answer would be 3.047 miles

Answer:

3.047

Step-by-step explanation:

[tex]\frac{miles}{days} \\ \\\frac{15.235}{5} = \frac{?}{1} \\[/tex]

When solving equations you multiply the denominator of one of the fractions by the others numerator. Here the available numerator is 15.235 and the others denominator is 1. This means that we do 15.235 times 1, which is equal to 15.235. The next step is to divide by the remaining denominator or numerator. Here the remaining denominator is 5. This means that we divide 15.235 by 5 which is equal to 3.074.

If u anserw these two ill give u 80 points!

Answers

Answer:

Step-by-step explanation:

cans of dog food c, cans of dog food

over = over

number of days number of days in a week

can someone pls check my other question on health plsssss and nobody say sum like "idkkkk" help me if you actually can help me I'm sick of getting scammed on here :(

Answers

what was it? i’ll see if i know

In which of the number lines does the plotted point represent a number greater than Negative 1 and one-half? Check all that apply.

Answers

Answer:

The answers are D and E.

Step-by-step explanation:

Answer:

All the above

PLEASE PLEASE PLEASE HELP im not in a good place with hw rn.. PLEASE HELP

Answers

answer: c and e
explanation: put the equation in the graphing calculator and look at the graph and table the answer will show

Who Ever Can Make A Real World Scenario With The Pythagorean Theorem And The Solution Step By Step Gets Brainlyest

Answers

We cannot see the question of the screen good

23 goes in five of the square root many people 45 can make this 76

The product of the ages of my three kids is 36, and my twin boys are older than my girl. How old are my kids?

Answers

Answer:

The only possible solution is 1, 6 & 6

Step-by-step explanation:

Hope it helped :)

She’s right I got the same answer

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Answers

ok so if 500 is 1/2 what is half of 500 and then what is half of what half of 500 hundred? and then what is 500 half of?

Identify the explicit function for the sequence in the table

Answers

the answer to this question is B

Answer:

[tex]a(n)=8+(n-1)*6[/tex]

Step-by-step explanation:

Since all of the equation have (n-1), you can replace the expression "n-1 when x=1" as 0. The only equation where a(1) still equals 8, is b.

Maysa made an error in her work on the following problem.
3.5 - 2.46 =1.16
Describe Maysa's error. Explain how you would use a model or place-value concepts to help Maysa build understanding. Give the correct answer in your explanation

Answers

Answer:

0.04

Step-by-step explanation:

Rewrite 3.5 as 3.50, with two decimal places, to match 2.46 and 1.16 in having two decimal places.

Then 3.5 - 2.46 = 1.16 becomes

3.50

-2.46

---------

0.04 (answer)

0.04 that is the answer!

25 × 13 = __________ twenty-fives. 49 × 11 = __________ elevens.

Answers

Answer:

I hope this helps. I don't quite know what you're looking for.

Step-by-step explanation:

25 x 13 = 325

325 divided by 25

= 13 twenty fifths.

49 x 11 = 539

539 divided by 11

= 49 elevenths

Quadrilateral PRST is transformed according to the rule (x, y) → (x + 9, y +4) to create quadrilateral P'R'S'T'.

Which statement is true?
The side lengths of quadrilateral P'R'S'T' are twice the corresponding side lengths of quadrilateral PRST.
The angle measures of quadrilateral P'R'S'T' are equal to the corresponding angle measures of quadrilateral PRST.
The side lengths of quadrilateral P'R'S'T' are 9 units longer than the corresponding side lengths of quadrilateral PRST.
The angle measures of quadrilateral P'R'S'T' are greater than the corresponding angle measures of quadrilateral PRST.

Answers

Answer:

C. The angle measures of quadrilateral P’R′S’T′ are equal to the corresponding angle measures of quadrilateral PRST.

Step-by-step explanation:

i took the quiz

Which statement is true?

The Mississippi River in Iowa is at an elevation of 279 and Death Valley, in California is at an elevation of -282 feet. Which statement is true?

A |279| > |-282|
B |279| < |-282|
C 279 = 282
D 279 < -282

Answers

Answer:

Step-by-step explanation:

The symbol "|" means absolute value so for example |-12| is not equal to -12 it is equal to just 12.

A would be incorrect because |-282| is equal to 282 and 282 is greater than 279.

B would be correct because 279 is less than 282

C would be incorrect because 279 is not equal to 282, 279 is equal to 279.

D would be incorrect because -282 is not greater than 279

I am not absolutely positive but I am pretty sure your answer is b

solve for x: 7x + 8 = 3x - 4

Answers

7x+8=3x-4
7x-3x+8=-4
—————
4x = -4–8
––––——
4x = -12
————
X= -12%4
—————
X= -3

Amanda’s pool holds 500 gallons of water. Approximately how many liters does the pool hold? (1 gallon is about 3.8 liters.)

Answers

Number A 1900, just multiply 3.8 by 500

Answer:

A. 1,900

Step-by-step explanation:

Conversion factor: 1 US Fluid Gallon = 3.785411784 L

1) Liter = Gallon * 3.785411784

2) Liter = 500 * 3.785411784

3) Liter = 1892.706

How would you explain 1.56+ (-3.89)=?

Answers

Answer:

-2.33

Step-by-step explanation:

If u have a negitive and a positive then you would take away 1.56 form the -3.89 and then you have your answer.

The answer is -2.33

Is this a function,why or why not

Answers

Answer:

Yes

Step-by-step explanation:

No. The input has more than one output

help please i need to finish this today

Answers

Step-by-step explanation:

The answer is C. They are corresponding angles.

Explain how to find the slope from a given table.

Answers

Answer:

First, find the change in the y-values by subtracting from one row to the next, then find the change in the x-values by subtracting from one row to the next, then finally, just divide the difference in the y-values by the difference in the x-values.

Step-by-step explanation:

Slope is a rate of change you determine slope by dividing the change of the y by the change of the x if it’s a linear relationship then pick any two pairs of value:)

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Answers

Answer:

I think its 30 because if you add them together you get 29.825

Step-by-step explanation:

hope it helps

Answer:

30 miles

Step-by-step explanation:

Choose the three values that are equivalent.
39/100
3.9
39%
0.39
3.9%
0.39%

Answers

Answer:

39/100

39%

0.39

Step-by-step explanation:

All of these are equivalent to each other! Any number over 100 can easily be transferred to a percentage value, so 39/100 is also equivalent to 39%. Considering that it is also by the hundredths, 0.39 is also an answer choice due to the conversion from fraction to decimal form. I hope that this helped! <3

Answer:

39/100, 39%, and 0.39

Step-by-step explanation:

Rewrite the following equation into slope intercept form 3x - 4y = 20 and identify the slope and y - intercept.

Answers

y=3/4x+20 slope=3/4 y intercept= 20

y = (3/4)x - 5 is the equation in slope-intercept form.

The slope (m) is 3/4 The y-intercept (b) is -5

To rewrite the equation 3x - 4y = 20 into slope-intercept form (y = mx + b), where "m" represents the slope and "b" represents the y-intercept, we need to isolate "y."

Starting with the given equation:

3x - 4y = 20

First, we subtract 3x from both sides:

-4y = -3x + 20

Next, we divide the entire equation by -4 to solve for "y":

y = (3/4)x - 5

Now, we have the equation in slope-intercept form.

The slope (m) is 3/4, indicating that for every 1 unit increase in x, y increases by 3/4 units.

The y-intercept (b) is -5, representing the point (0, -5) where the line crosses the y-axis.

Learn more about equation here

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Answers

Answer:

Step-by-step explanation:

First of all -2-5= -7

It isn't (A) because (A) is saying that the beginning temperature was a postive number, which it wasn't The beginning temperature is -2, which is negative. So we can cross that off.

It isn't (B) because (B) is saying that you start off with -2 and then it gets warmer, and temperature adds up onto it. When you do -2 +5, you get 3, which is not the answer.

So, the answer is c

Proof: It starts of with negative 2, which is the first temperature. Then, it says decreased by 5, which is what is happening. 5 is getting subtracted from -2

So, the answer is C

Answer:

Step-by-step explanation:

-2-5

the minus sign infront of the two has to stay with the two so we would have -2°C the options we would be left with are b and c but since it says subtract 5 that would be a decreases not an increase so it would be decrease 5°C

I need help asap!!!!!!!!!!!!!!!!!!!

Answers

Answer:

18 centimeters.

Step-by-step explanation:

You have to multiply 27 by 2 = 54

Then 90 - 54 = 36

Then 36/2 = 18

The width is 18 centimeters.

Hope this helps ya!!

Answer:
18

Explanation:
27 x 2 = 54
90 - 54 = 36
36 / 2 = 18

Which is the graph of the linear inequality 2x – 3y < 12?

A - On a coordinate plane, a solid straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the right of the line is shaded.
B - On a coordinate plane, a dashed straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the right of the line is shaded.
C - On a coordinate plane, a dashed straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the left of the line is shaded.
D - On a coordinate plane, a solid straight line has a positive slope and goes through (0, negative 4) and (3, negative 2). Everything to the left of the line is shaded.

Answers

The answer is C I hope I helped!

The answer would be c because of the equation and the way it is positioned on the plane.

HELP PLEASE! FINALSSS!
Brooke plays on her school's softball team. Last season she was at bat 500 times, and made a safe hit 28% of the time. How is 28% expressed as a fraction?
A. 28/500
B. 28/100
C. 28/50
D. 28/10

Answers

Answer:

A:28/500

Step-by-step explanation:

Yup 28/500.
See they could’ve went divide both by two and u get 14/250 and then again to get 7/125

Renaldo will write StartFraction 3 over 20 EndFraction as a decimal. Which of the following methods should he use?
Multiply the fraction by StartFraction 5 over 5 EndFraction to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
Multiply the fraction by One-fifth to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
Multiply the fraction by StartFraction 33.3 over 33.3 EndFraction to get a numerator of 100 and then write the denominator as hundredths using a decimal point.
Multiply the fraction by 33.3 to get a numerator of 100 and then write the denominator as hundredths using a decimal point.

Answers

hey sorry I’m late it’s d hope this helps

Answer: D

Step-by-step explanation:

trust me

A supermarket chain has 1,100 stores locations in all and 780 of them are in Florida The chain had total revenue of 33 billion last year. assuming the stores have equal revenue. which of the following was correct for last year

A.) The revenue for all of the stores in Florida 31$ million per store

B.) The revenue for all of the stores in Florida was $23.4 billion

C.) The revenue for all of the stores in Florida was $24 billion

D.) The revenue was $29 million per store

Answers

Answer:

the answer is b....i think

Step-by-step explanation:

The correct answer should be B

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