Mathematics High School

solve the questions it is direct and indirect variations

Answers

Answer 1

Answer:

v = $312.5

Step-by-step explanation:

Let

Value of the gem stone = v

Weight of the gemstone = w

v = k * w²

Where,

k = constant of proportionality

w = 4 carat

v = $200

v = k * w²

200 = k * 4²

200 = k * 16

200 = 16k

k = 200/16

k = 12.5

Find v when w = 5 carat

v = k * w²

= 12.5 * 5²

= 12.5 * 25

= 312.5

v = $312.5

Related Questions

Solve the inequality. Graph the solution. 0 < −12t

Answers

Answer:

t<0 or (-∞,0)

Step-by-step explanation:

i think i might be wrong maybe

Consider a cube that measures 1 inch on each side. We can think of a cubic foot as a dilation of the cubic inch by a factor of 12. What is the volume, in cubic inches, of a cubic foot? *

Answers

The volume of the cube is 1 cubic foot.

Volume of cube:

Given that, each side of cube is 1 inch.

When dilation of the cubic inch by a factor of 12. Then each side of cube became 12 inches.

As we know that,

[tex]12inch=1 foot[/tex]

So that, each side of cube become 1 foot.

Volume of cube [tex]=(side)^{3}[/tex]

[tex]Volume=1^{3}=1ft^{3}[/tex]

Learn more about the volume of cube here :

https://brainly.com/question/1972490

Answer:

its 1728

Step-by-step explanation:

Find the y-intercept of the line shown below.

PLS SOMEONE ANSWER THIS!!

Answers

Answer:

The intercept is 2 or (0,2) because that is where it intercepts on the Y axis

Answer:

(0,2)

Step-by-step explanation:

The y-intercept is just where the line passes through the y-axis or when x= 0.

I need help I have been stuck for an hour

Answers

Answer:

Step-by-step explanation:

Order these fractions and decimals from least to greatest.. ASAP please!!

7 1/10, 7.79, 7.108, 57/8

Answers

Answer:

7 1/10 , 7.108 , 57/8 , 7.79

Step-by-step explanation:

7/10 = 7.1

57/8 = 7.125

When ringing up a customer, a cashier needs 30 seconds to process payment as well as 3 seconds to scan each item being purchased. How long does it take to ring up a customer with 24 items? Write and solve an equation to find the answer.

Answers

Say x = the number of items being purchased. Then we can write the equation, using seconds:

3x + 16 = 136

(3 seconds per item, plus 16 seconds to process payment, equals 136 seconds total.)

Subtract 16 from each side. Then divide both sides by 3.

Evaluate f(x)=−7x−5 when x=−6.

f(−6)=

Answers

The answer would be 37 because you multiply -7(-6) and get 42 and the you subtract 5 and get 37 as your final answer

Answer:

f(_6) = _7(_6)_5

=42_5

=37

Which expression is equivalent to 3^2x3^6? 9^12. 3^8. 3^12. 9^8

Answers

Answer:

3^8

Step-by-step explanation:

I am holding $2 in dimes and quarters. There are 11 total coins in my hand. How many are dimes and how many are quarters?

Answers

Answer:

6 quarters and five dimes

Step-by-step explanation:

;)

Answer:

6 quarters and 5 dimes

Step-by-step explanation:

6 quarters = $1.50

5 dimes = $0.50

Complete the table.

Original Price = ? Percent of Discount = 80% Sale Price = $90

Answers

Answer:

List Price = $ 450.00

This image is a formula for the problem

A farmer goes to the market
with $100 cash. He must buy
exactly 100 animals. There are
cows, geese and chicken for
sale. A cow costs $15, a goose
is $1 and a chicken costs $0.25.
He must buy at least one of
each animal and has to spend
all his money. What does the
farmer buy?

Answers

Answer: 6 cows,8 chickens,8 goose

Step-by-step explanation: Add 15+.25+1=16.25

16.25x4=65+35-32.5=2.5

6 animals each right now

6 cows

8 chickens

- The discount is $4.40 off for each mug. - The club is able to order 24 mugs if they choose this company The club has a budget of $120 for the mugs. There is a set-up fee for each order, but the company decides to waive the fee for the science club. What is the regular price per mug at this company?

Answers

Answer:

The answer is $9.40

it would be $9.40, hope this helped

Evaluate 2x3 – 3 when x is 2.
Helpp

Answers

Answer:

hope it's helpful ❤❤❤❤❤

THANK YOU.

Olivia and Ray walk to school. Olivia walks 1 4of a mile to school. Her walk is 2 3of the distance that Ray walks to school. What is the total distance, in miles, that Ray walks to school?

Answers

Answer:

ray walks 3/8th of a mile

Step-by-step explanation:

1/4 multiplyed by 2/3 and you will get 3/8

PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.

Answers

do not know sorry : (

Answer:

right option is A:- they are adjacent angles

hope it helps

Step-by-step explanation:

please mark me brainliest

ILL GIVE BRAINLIEST AND EVERYTHING ELSEEE HELP

Answers

Answer:

The Second One

Step-by-step explanation:

Commutative Property

*WILL GIVE BRAINLIEST*

These are complementary angles. Find the angle value of x

A: 30°

B: 17°

C: 73°

D: 100°

PS. it's not 30. i tried and got it incorrect :(

Answers

The sum of complementary angles is 90, as opposed to supplementary angle where the sum would be 180

Hence, x + 73 = 90

====> x = 90-73 =17

X + 5x - 6 < 12 solve for inequality

Answers

Answer:

Step-by-step explanation:

x+5x<12

x+5x=12

12-5x

7 divide by 1

Find the Measure of the missing angles.

49°

118

73

Measure angle 1 =

Measure angle 2-

Measure angle 3=.

Answers

Answer:

Find the Measure of the missing angles.

49°

118

Measure angle 1 =

Measure angle 2-

Measure angle 3=.

Step-by-step explanation:

Find the mean of this set of numbers 42,78,81,23,12

Answers

Answer:

47.2

Step-by-step explanation:

add all the numbers(42,78,81,23,12) then divide by the total amount of numbers(5) which will result in it being 47.2.

Answer:

47.2

Step-by-step explanation:

Total Numbers in Set: 5

Mean (Average): 47.2

Median (Middle): 42

Mode (Most Common): No Mode of this set

Range (Biggest - Smallest): 69

Ascending Order: 12,23,42,78,81

Decending Order: 81,78,42,23,12

Even Numbers: 12,42,78

Odd Numbers: 23,81

A pizza shop can put together 4 pizzas in 12 minutes. What is their production rate in pizzas per hour?

Answers

i’m sure it’s 20 if not i’m sorry

Answer:

I think it'd be 20 pizzas an hour

Step-by-step explanation:

find value of x!!! this is geometry

Answers

it is x=69 because the 1 turns into a snitch and caused the 9 to a turn into a 68 and if you add 1 to 68 it’ll be 1+68=68

A 4 foot steel pipe weighs 15 pounds. How much will a similar pipe weigh if it is 7 feet long?

Answers

Step-by-step explanation:

Let's take the unit ratio of weight to length:

[tex] \frac{15 \: pounds}{4 \: feet} = 3.75 \frac{pound}{feet}[/tex]

Now that we have the unit ratio, let's multiply it to the similar pipe which is 7 feet long.

[tex]3.75 \frac{pounds}{feet} \times 7 \: feet = 26.25 \: pounds[/tex]

Anna is making a gallon of iced tea, which requires 6 cups of iced tea mix. She only has 1/4 - cup measuring cup. How many 1/4 scoops of iced tea mix does anna need?

Use words and numbers to explain your answer. What operation did you use to solve and why?

Answers

Answer:

24 scoops of iced tea

Step-by-step explanation:

Well, the way that I am going to solve this question is by calculating how many 1/4 cups she needs to get 1 cup and then multiply that by 6.

1/4 x 4 = 1

So 4 times 6 equals 24.

In conclusion, she needs 24 scoops

1/4 x 24 = 24/4. 24 divided by 4 equals the 6 cups Anna needs

Adjust the equation so the line passes through the points

Answers

Answer:

Do you still need help???

How can you use the properties of equality to write equivalent equations?

Answers

If two expressions are equal to each other, and you add the same value to both sides of the equation, the equation will remain equal. When you solve an equation, you find the value of the variable that makes the equation true. In order to solve the equation, you isolate the variable.

a = b and c ≠0, then a c = a c . Another example Consider the equation 12 = 12. Divide both sides by 4.

Determine the slope of the line that has the points (-5, 8) and (-5, 3).
O A. O
B. -2
C. 2
OD. Undefined

Answers

Answer:

Option D : Undefined

Step-by-step explanation:

Given points (-5,8) and (-5,3) lies on a line.

Slope of a line is given by:

m = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m = \frac{3-8}{-5-(-5)}\\\\m=\frac{-5}{0}[/tex]

Anything divided by zero is undefined.

Therefore,

Option D is the correct answer.

490,612 round to the nearest hundred thousand

Answers

Answer:

500,000

Step-by-step explanation:

If the number is under 5 it rounds down and over 5 rounds up

Answer: 490,612.00000

Explanation:

what is 8u+17=17 what is u = to

Answers

Answer:

[tex]8u+ 17 = 17 \\ 8u = 17 - 17 \\ 8u = 0\\ u = \frac{0}{8} \\ \boxed{u = 0}[/tex]

u=0 is the right answer.

you would try to isolate u first. to do this, subtract 17 from each side. you should have 8u=0. then, divide 8 from each side. you should have u=0.

Selena reduced the time it takes her to run a mile from 8 minutes to 6 minutes. What was Selena's percent decrease in the time it takes her to run a mile?

Answers

Answer:

I think the answer might be 0.48 because that is 8 percent of 6, but im not positive

Selena reduced the time it takes her to run a mile from 8 minutes to 6 minutes. What was Selena's percent decrease in the time it takes her to run a mile?

It is 25%

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