Mathematics Middle School

CORRECT ANSWERS ONLY PEEPS- this is 7th grade math on khan academy and if ur answer is incorrect, ill report yalll

Answers

Answer 1

Answer:

Step-by-step explanation:

proportional relationship: must be straight line and go through (0, 0).

Answer 2

[tex]\quad \huge \quad \quad \boxed{ \tt \:Answer }[/tex]

[tex]\qquad \tt \rightarrow \: C. 2 [/tex]

____________________________________

[tex] \large \tt Solution \: : [/tex]

Proprtional relationship can be depicted as :

[tex]\qquad \tt \rightarrow \: y \propto x[/tex]

[ to get rid of proportionality sign, we use constant c ]

[tex]\qquad \tt \rightarrow \: y = cx[/tex]

Now, conclusion can be made that the shown equation represents a straight line.

And the graph has two straight lines, which means proportional relationship is shown by Two members

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

Related Questions

3+(−4)−7
Please include explaination

Answers

Answer:

-8

Step-by-step explanation:

3 + -4 - 7

3 - 4 - 7

-1 - 7

-8

Answer: -8

Step-by-step explanation:

3+(-4)-7

Whenever you have a +(- something), it ALWAYS becomes a -

So 3+(-4)= 3-4

Now we have:

3-4-7

PEMDAS states that you must do the subtraction from left to right. So you start with the 3-4.

3-4-7

-1-7

-8

Whenever you have a negative number minus a number , the result will always be negative.

Hence, thats why the answer is -8

Please Help!!!!!!!
I need it!!!

Answers

Answer:

30%

Step-by-step explanation:

To express percentage as a fraction, the denominator must be 100.

Given ,

[tex]\frac{18/60}{60/60}\\= \frac{0.3}{1} \\= 0.3 * 100\\= 30%[/tex]

Answer:

1) Percent of skateboards that are longboards is 18÷60 or 30%

2) Number needed for equivalent ratio is 30 longboards

Step-by-step explanation:

1) Percentage= part divided by whole

18÷60 = 0.3

0.3 = 30%

2) Create a proportion, let x = # longboards needed for a equivalent ratio

(18÷60)=(x÷100)

x=30

20 PTS+BRAINLIEST 8th Grade Simple quadratic equation- answers for points will be reported :)

equation: -7x+6= x squared-7x

Answers

Answer:

x = √6 or - √6

Step-by-step explanation:

equation: -7x + 6 = x² - 7x

switch sides:

x² - 7x = -7x + 6

Add 7x to both sides,

x² - 7x + 7x = -7x + 7x + 6

x² = 6

For x² = f(a) the solution are x = √f(a), -√f(a)

x = √6 , x = - √6

Answer:

-7x + 6 = x² - 7x

-7x + 7x +6 - x² = 0

0 + 6 - x² = 0

-x² + 6 = 0

-x² = (-6)

x² = 6

x = ±√6

x =√6 or x = -√6

Consider the formula for surface area, SA = (p • h) + 2B. The perimeter is
given in ___, the height in ___, and area of the base in ___.
A. in; in2; in
B. in2; in; in2
C. in; in; in
D. None of the above

Answers

Answer:

Step-by-step explanation:

Perimeter and height are in inches and area is inches squared

D. none of the above

How many solutions does the system have?
y = − 7 x + 8
y = −7x - 8

A one
B none
C Infinite

Answers

Answer: B. None

Step-by-step explanation:

The best way to figure this out is by graphing it. I used Desmos graphing calculator. The red line is the first equation, and the blue line is the second one. As you see, they do not intersect anywhere, therefore will not have any solutions.

I hope this helps!! Pls mark brainliest!! :)

Answer:

Step-by-step explanation:

These are PARALLEL lines....they both have the same slope -7

so there are no solutions

Write eight billion twenty-three million four hundred seventy-two thousand eleven in standard form.

Answers

Answer: 8,230,472,011

Explanation:

billions: __8

millions: 230

thousands: 472

ones: 011

Answer:

8,230,472,011

Step-by-step explanation:

i attached the question :D

Answers

Answer:

$ 2155.62

Step-by-step explanation:

regular pay rate = 11.10

overtime pay rate = 1.8 * 11.10

142 * $11.10 + 29 * ( 1.8 * $ 11.10) = $ 2155.62

The answer is 2155.62 dollars

Someone help w pre-algebra, smth about proportional data

Answers

Answer:

The answer is no because for 1 hour he gets 20 dollars and for 2 hours he gets 30$ (which is less for working 2 hours). So, if you multiply 2 hours with 20 dollars, you should get 40, not 30. So therefore, it is not proportional. And same for 3 hours: multiply 3 with 20 to get 60, not 50.

Your answer would be NO because he got 20$ for hour 1 but only 10 for hours 2 and 3

Which of the following statements would not translate to the equation 8 ÷ x = -4?

The quotient of eight and a number equals negative four.
The solution of a number divided by eight is negative four.
Eight divided by a number is equal to negative four.
If eight is divided by a number, the result is negative four.

Answers

Answer:

-2

Step-by-step explanation:

if you divide 8 by -2 you get -4

Answer:

The solution of a number divides by 8 equals to 4.

Step-by-step explanation:

This statement does not match the condition discussed above.

Please hurry

If the perimeter is 26 meters,
what is the length of the missing
side in this polygon?

A. 7 m
B. 8 m
C. 9 m
D. 52 m

Answers

Answer:

Step-by-step explanation:

if the perimeter is 26

and x = 4+3

then x=7

Answer:

A. 7m

Step-by-step explanation:

Just add the 4m and 3m.

how do i turn a fraction into its simplest form?

Answers

Answer:

You divide both the numerator and the denominator by the same number until they can't be reduced any further.

Answer:

Make sure to divide the upper number and the lower number (in position) to a number which can't be futher divided. It will be of numbers which are really small numbers. like 4/2 will be divided by 2 to get the simplified answer of 1/2

Step-by-step explanation:

how much is 10 cents + 7 dimes + 1 quater equals?

I'm trying to make a dollar

Answers

Answer:

5 pennies = 1 nickel1 nickel = 5 pennies1 nickel + 5 pennies = 1 dime1 dime = 1 nickel + 5 pennies10 pennies = 1 dime1 dime = 10 pennies2 nickels = 1 dime1 dime = 2 nickels5 nickels = 1 quarter1 quarter = 5 nickels2 dimes + 1 nickel = 1 quarter1 quarter = 2 dimes + 1 nickel4 nickels + 5 pennies = 1 quarter1 quarter = 4 nickels + 5 pennies2 dimes + 5 pennies = 1 quarter1 quarter = 2 dimes + 5 pennies10 pennies + 3 nickels = 1 quarter1 quarter = 10 pennies + 3 nickels1 dime + 2 nickels + 5 pennies = 1 quarter1 quarter = 1 dime + 2 nickels + 5 pennies1 dime + 1 nickel + 10 pennies = 1 quarter1 quarter = 1 dime + 1 nickel + 10 pennies2 quarters = 1 half dollar1 half dollar = 2 quarters5 dimes = 1 half dollar1 half dollar = 5 dimes

5 nickels + 1 quarter = 1 half dollar1 half dollar = 5 nickels + 1 quarter3 dimes + 4 nickels = 1 half dollar1 half dollar = 3 dimes + 4 nickels4 dimes + 2 nickels = 1 half dollar1 half dollar = 4 dimes + 2 nickels1 quarter + 1 dime + 2 nickels + 5 pennies = 1 half dollar1 half dollar = 1 quarter + 1 dime + 2 nickels + 5 pennies2 half dollars = 1 one dollar coin1 one dollar coin = 2 half dollars5 dimes + 10 nickels = 1 one dollar coin1 one dollar coin = 5 dimes + 10 nickels1 one dollar bill = 1 one dollar coin1 one dollar coin = 1 one dollar bill4 quarters = 1 one dollar bill1 one dollar bill = 4 quarters3 quarters + 2 dimes + 1 nickel = 1 one dollar bill1 one dollar bill = 3 quarters + 2 dimes + 1 nickel10 dimes= 1 one dollar bill1 one dollar bill = 10 dimes1 quarter + 7 dimes + 1 nickel = 1 one dollar bill1 one dollar bill = 1 quarter + 7 dimes + 1 nickel2 quarters + 2 dimes + 5 nickels + 5 pennies = 1 one dollar bill

Step-by-step explanation:

This program simplifies our complex monetary system by familiarizing users with common combinations of coins and bills that are equivalent in value. Starting with five pennies equal one nickel, the program works up to equivalents for a twenty dollar bill.

Answer:

$1.05

Step-by-step explanation:

1 dime = 10 cents so 7 dimes = 70 cents
1 quarter = 25 cents

Therefore 10 cents + 7 dimes + 1 quarter = 10 + 70 + 25 = 105 cents = $1.05

what is the correct solution to the problem 6 x 3/8?

Answers

Answer:

9/4 or 2.25

Step-by-step explanation:

what is the correct solution to the problem 6 x 3/8?

6 * 3/8 =

semplify

3 * 3/4 =

9/4 or 2.25

9/4

Explanation:

Put 6 over a one (6/1)
Now multiply 6/1 by 3/8 = 18/8 (what you do is you multiply the top, then bottom)

Now simplify:

Both have 2 in common so we would do 18 divided by 2 (9)
Then 8 divided by 2 (4)

So we get our answer 9/4

FREE BRAINLEST IF YOU ANSWER CORRECTLY

4x + 1 over 3 y2

What is the value of the expression above when x = 2 and y = 3? You must show all work and calculations to receive full credit.
--------------------------------------------------------------------------------------------------------------
Says the correct answer: FIRST = Brainliest, Thanks, 5 stars, and praise.
Correct answer: Thanks, 5 stars, and praise.
Incorrect answer: 2 stars (Nothing personal).
Odd answers like GPUOLFYG or answers that don't make sense: 1 star and report.
Links: 1 star and report.

Answers

Answer:

1/2

put the values in the equationfor x =2 and for y =34(2)+1/3×3×2=8+1/3×69/181/2

the answer would be 1/2

The surface areas of the solids shown above are equal, but their lateral
surface areas are not.
A. True
B. False

Answers

Answer:

Flase

Step-by-step explanation:

Solid a has a surface area of 170 sq ft.

Solid b has a surface area of 126 sq ft.

Just knowing this information we already know that the statement is false

Answer:

False

Step-by-step explanation:

1. Find the surface area

Shape 1 Shape 2

(4 x 5)2 + (5x5)4 = 140 (6 x 3)2 + (3 x 5)2 + (6 x 5)2 = 126

2. Exclude the bases

Shape 1 Shape 2

140 - 40 = 100 126 - 36 = 90

All in all, this is FALSE

Hope this helped. Please give brainliest. It took me a long time (30 minutes).

Monroe Vitamin Shop sold equal quantities of Vitamin A and Vitamin D supplements this
morning, even though the Vitamin A supplements come in packs of 4 and the Vitamin D
supplements in packs of 7. What is the smallest number of each type that the store could
have sold?
supplements

Answers

Answer:

28 supplements

Step-by-step explanation:

4 x 7 = 28

7 x 4 = 28

Monroe vitamin shop sold equal quantities of vitamin a and d supplements

What is the distance between the house and the library?

Answers

Answer:

C (√34)

Step-by-step explanation:

Pythagoras' theorem states that: a² + b² = c², where c is the hypotenuse and what we are trying to figure out.

So, 3² + 5² = c²

9 + 25 = 34 = c²

c = √34

Answer:

C (√34)

Step-by-step explanation:

A group of 25 pennies is arranged into three piles such that each pile contains a different prime number of pennies. What is the greatest number of pennies possible in any of the three piles?

For reference: Possible answers(prime numbers below 25)
2, 3, 5, 7, 11, 13, 17, 19, and 23

Answers

Answer:

seventeen (17),nineteen (19),and twenty three(23)

seventeen(23), nineteen(19), twenty three(23)

**Please hurry**
What is the perimeter of the polygon shown below?

A. 16 in.
B. 32 in.
C. 48 in.
D. 65 in.

Answers

It is B. 32 in.

because you at the sum up all the sides of the shape.

the answer is B . 32 in :)

4(15y x 2 + x)
y = 9
x = 3y

PLS HELP

Answers

Answer: 1118

Step-by-step explanation:

plug in x and y into the equation

1188 is the answer. To find your X you just multiply 3 x 9 which equals 27. Then plug in your X and Y.

PLESAE HELP ME SOLVE THIS!! THANK YOU!!!

(9*10^9)*(-2*10^-3)

Answers

I think it’s A i’m not too sure

The answer is A I’m pretty sure

what is this answer.Estimated pls help now!i need it in 1-3 minutes

2.21×5.1≈
HELP ME NOWWW

Answers

Answer:

11.271

Step-by-step explanation:

just multiply

Answer:

11.271

Step-by-step explanation:

Multiply

2.21 by 5.1

John works as a part time waiter in a restaurant. He gets a monthly salary of ₹4,410.Calculate John’s daily, weekly and annual salary.(Take 1 month= 30 days)

Answers

1 month is aprox. 30 days, so

To find john's daily salary:

For a month, the salary is 4,410 rupees, so for a day how much?

days salary

30 4,410 (This is how I learnt to solve these kind of problems)

1 ?

Then you crisscross the equation which becomes

4,410/30=147 rupees

To find weekly salary:

we now know the salary for one day so we can say: For a day, the salary is 147 rupees, so for 7 days (1 week) how much?

You multiply the salary for one day and the number of days: 147×7=1,029 rupees

To find salary for a year (annual):

we now know the salary for one day so we can say: For a day, the salary is 147 rupees, so for 365 days (1 year) how much?

You multiply the salary for one day and the number of days: 147×365=53,655 rupees

Hope it helps!

Daily=147
Weekly=1,029
Yearly=53,655

Insert a digit in each place "..." to make numbers that are divisible by 6

if it is possible:
4...9

Answers

the question isn't possible to answer because 9 is not divisible by 6

Answer:

It is not possible to make 4_9 divisible by 6

Step-by-step explanation:

A number that is divisible by 6 will be divisible by 2 and by 3. An integer is divisible by 2 if its units digit is even. An integer is divisible by 3 if the sum of its digits is divisible by 3.

The given number has a units digit of 9, which is not even. The number cannot be made divisible by 2 for any inserted digit.

It is not possible to make 4_9 divisible by 6.

Charlie made the following table to record the height of each person in his family.

Round Charlie's height to the nearest half or whole.

Answers

Answer:

Step-by-step explanation:

Since the question does not specify if you are rounding up or down, just round down to four from 4 1/6. 4 1/6 is closer to 4 than it is to 4 3/6 or 4 1/2.

4, lmk if you need a full explanation i’ll be happy to help!

Which inequality symbol do I use? -3.5 ___ 1.5 and |-3.5| __ |1.5|

Answers

Answer:

-3.5 < 1.5 and |-3.5| > |1.5|

The answer is -3.5>1.5 and |-3.5| > |1.5|

Complete the equation.

3x^2 times (9x)^0

Answers

Answer:

[tex]\boxed {3x^{2}}[/tex]

Step-by-step explanation:

⇒ 3x² × (9x)⁰

⇒ 3x² × 1 (Any number raised to 0 is equal to 1)

⇒ 3x²

Answer:

3x²

Step-by-step explanation:

3x²×(9x)raised to zero

= 3x²×1

=3x²

50 POINTS+BRAINLIEST:8th grade systems of equations word problem-explain steps with simple language, answers for the sake of points will get reported :))

Answers

Answer:

one paperback = 0.6 pounds

one textbook = 3.6 pounds

Explanation:

Let the mass of one paperback be 'p' and one textbook be 't'.

Equation one:

sum of mass = total mass in box

20p + 9t = 44.4

Equation two:

20p + 5p + 9t + 1t = 5125p + 10t = 51

make 't' subject

10t = 51 - 25pt = 5.1 - 2.5p

Insert this into equation one:

20p + 9(5.1 - 2.5p) = 44.4

20p + 45.9 - 22.5p = 44.4

20p - 22.5p = 44.4 - 45.9

-2.5p = -1.5

p = 0.6

The weight of 1 paperback is 0.6 pounds.

The weight of 1 textbook:

t = 5.1 - 2.5p

t = 5.1 - 2.5(0.6)

t = 3.6

The weight of 1 textbook is 3.6 pounds.

The weight of the textbook is 3.6 pounds

Given conversion factor 12 in/ 1 ft, what is the above line segment's unit of
measure in feet? Round your answer to the nearest tenth.

Answers

Answer:

7.0

Step-by-step explanation:

84.5/12=7.046666667
=7 feet when rounded

In a music competition, a participant has to score a total of at least 40 points in the first four rounds combined to move on to the fifth and final round. Glenn scored 4 points in the first round. He then went on to score additional points in the second, third, and fourth rounds. In each of those rounds, his score was identical. Which inequality best shows the number of points, p, that Glenn scored in each of the second, third, and fourth rounds if he earned a place in the finals?

a 4 + 3p ≤ 40
b 4 + 3p ≥ 40
c 4p + 3 ≥ 40
d 4p + 3 ≤ 40

Answers

Answer:

b 4 + 3p ≥ 40

Step-by-step explanation:

he needs more than 40 points, so we need to pick and answer with a greater than or equal to sign that faces the side with Glenn's points. This leaves b or c for our answers. Glenn played 3 different rounds in which he scored a value represented by the variable p. Additionally, he scored a value of 4 points is given. Therefore, because he scored p in 3 different rounds, p is multiplied by 3 to make 3p. So, 4+3p≥ 40 (answer b) is correct

Answer:

b 4 + 3p ≥ 40

Step-by-step explanation:

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