Assume y varies inversely as x. If y = 60 when x = 80, find x when y = -20​

Answers

Answer 1

Answer:

I think the answer is -40

Step-by-step explanation:

what I did was added the -20 +-20
Answer 2

Answer:

x=0

Step-by-step explanation:

so we are going to first subtract by both sides,

x=80       y=60

  -20           -20

------------------------

x=60     y=40

then again,

x= 60 y=40

  - 20    -20

---------------------

x=40 y=20

and again,

x=40 y=20

 -20    -20

-----------------

x=20 y=0

then lastly again,

x=20 y=0

 -20   -20

------------------

x=0   y=-20

ta da, hopefully this is helpful


Related Questions

Adrianna, Deon, and Yoko jogged at Eisenhower Park today. Adrianna jogs at the park every 3
days. Deon jogs at the park every 5 days. Yoko jogs at the park every 6 days. Find the least
common multiple of 3, 5, and 6 to determine how many days will pass before all three jog at
Eisenhower Park on the same day again.

Answers

Answer:the answer is 30

Step-by-step explanation hope this helped ☺️

Answer:30

Go sub to King4cookies

Step-by-step explanation:

A company weighs 1,096 boxes of cereal and finds that 12.5% of them weighed less than one pound. Which of
the following is the number of boxes that weighed less than one pound?

Answers

Answer:

137 boxes

Step-by-step explanation:

1096 boxes * 0.125(12.5% of boxes weighing less than a pound) = 137 boxes

7. Make a box-and-whisker plot for the data. What is the upper quartile value?
56 32 48 52 51 53 48 38 35 42 40 46 54 50

Answers

In order to draw the Box-whisker plot, we need to rewrite the data in increasing order.

42 43 47 48 51 52 56 56 58 60 62 64 65 66

Mean of the data = (42 + 43 + 47 + 48 + 51 + 52 + 56 + 56 + 58 + 60 + 62 + 64

+ 65 + 66) ÷ 14

Mean of the data = 770 ÷ 14

Mean of the data = 55

Median = (56 + 56) ÷ 2

Median = 112 ÷ 2

Median = 56

Lowest value = 42

Highest value = 66

Range = Highest value - Highest value

Range = 66 - 42

Range = 24

Lower Quartile = 25% of the data

Lower Quartile = 48

Upper Quartile = 75% of the data

Upper Quartile = 62

I need help solving for X
The answer choices are
-9
10
-11
9​

Answers

Answer:

x = -11

Step-by-step explanation:

Equations

The image shows a right triangle with angles 70°, 90°, and x+31.

The sum of the internal angles of a triangle is 180°, thus:

70 + 90 + x + 31 = 180

Simplifying:

191 + x = 180

Subtracting 191:

x = 180 - 191

x = -11

Select the three fractions that are equal to 8/14
A) 4/7
B) 48/84
C)16/28
D) 2/3
E) 24/48

Answers

Answer:

A) 4/7 and C) 16/28 and B) 48/84

How do you solve for critical value?​

Answers

The critical value is a factor used to compute the margin of error, as shown in the equations below.

To find the critical value, follow these steps.
Compute alpha (α): α = 1 - (confidence level / 100)
Find the critical probability (p*): p* = 1 - α/2.
To express the critical value as a z-score, find the z-score having a cumulative probability equal to the critical probability (p*).

is negative 9 an integer

Answers

Only fractions and decimals are not integers. therefore, negative 9 is an integer

What is the answer this is due in 10 MINUTES

Answers

Answer:

The answer is D 5

Step-by-step explanation:

because you could multiply by 5 and divide by 5

its proportional

PLEASE HELP ME WITH THIS ALGEBRA QUESTION!! THANK YOU!!

Answers

Answer:

4a (n-1) + 5

Step-by-step explanation:

1th=6

2nd=29

3rd=121

4th=489

.

.

nth

if n=2

a2 = 4a(2-1) + 5 = 4 a(1) + 5 = 4 (6) + 5= 29

a3 =4a(3-1) + 5 = 4 a(2) + 5 = 4 (29) + 5= 121

try finding a4, check wether the answer is 489

pls help find the amount at the end of 6 hours

Answers

Answer:

A. 7,348

Step-by-step explanation:

P = le^kt

intitial population = 500

time = 4 hrs

end population = 3,000

So we have all these variables and we need to solve for what the end population will be if we change the time to 6 hours. First, we need to find the rate of the growth(k) so we can plug it back in. The given formula shows a exponencial growth formula. (A = Pe^rt) A is end amount, P is start amount, e is a constant that you can probably find on your graphing calculator, r is the rate, and t is time.

A = Pe^rt

3,000 = 500e^r4

now we can solve for r

divide both sides by 500

6 = e^r4

now because the variable is in the exponent, we have to use a log

[tex]log_{e}(6) = 4r[/tex]

ln(6) = 4r

we can plug the log into a calculator to get

1.79 = 4r

divide both sides by 4

r = .448

now lets plug it back in

A = 500e^(.448)(6 hrs)

A = 7351.12

This is closest to answer A. 7,348

Paul joins a gym that has an initial membership fee and a monthly cost. He pays a total of $295 after three months, and $495 after eight months.

a) Identify the monthly cost.
b) What is the initial membership fee?
c) Write an equation for the total cost C as a function of the number of months, m. (so C is your y and m is your x)
d) Find how much Paul will have paid after one year.

Please give me answer.

Answers

Answer:

a

Step-by-step explanation:

On a number line, locate and label 20℃ below zero and 20℃ above zero. What does zero represent in this situation?

Number line \/

Answers

Answer:

Real-World Positive and Negative Numbers and Zero. 20. This work is derived ... when describing and representing situations involving integers; for example, ... feedback by labeling and relabeling the number line based on different responses. ... I would locate (place) zero as far to the left as possible and use a scale of 10.

Step-by-step explanation:

What is the w

4w+3w=63

Answers

Answer:

7w=63

63÷7=9

so, (w=9)

Answer:

9

Step-by-step explanation:

3*9 = 27 4*9=36

36 + 27 = 63

In the triangles, Line segment G K is-congruent-to line segment P N and Line segment G H is-congruent-to line segment M P.

Triangles G H K and P M N are shown. The length of side H K is 32 centimeters. The length of side M N is 40 centimeters. The lengths of sides H G and M P are congruent. The lengths of sides G K and P N are congruent.

Which statement correctly compares the angles?

Angle G is congruent to angle P.
Angle G is smaller than angle P.
Angle G is larger than angle P.
Angle G is congruent to angle N.

Answers

Answer:

B). Angle G is smaller than Angle P

Step-by-step explanation:

Given that,

GK ≅ PN,

GH ≅ MP

HK = 32 cm

MN = 40cm

and the other lengths are congruent.

This suggests that although the triangles are congruent yet they are not similar. Hence, the second statement correctly compares the angles that 'angle P is greater than angle G.'

Answer:

The answer is B

Step-by-step explanation:

Edg 2020

A triangle with side lengths of 3, 4, and 5 units is classified as

Answers

It would be a right triangle.
scalene triangle !!!

Sixty-four is 66 2/3 percent of what number?
please answer quickly if you can

Answers

Answer:

n = 96

Step-by-step explanation:

[tex]66\frac{2}{3}[/tex] % = [tex]\frac{200}{3}[/tex] %

[tex]\frac{64}{n}[/tex] = [tex]\frac{\frac{200}{3} }{100}[/tex]

[tex]\frac{\frac{200}{3} }{100}[/tex] = [tex]\frac{2}{3}[/tex]

[tex]\frac{64}{n}[/tex] = [tex]\frac{2}{3}[/tex]

2n = 192 ⇒ n = 96

Mal works at a photo gallery. He charges $50 for a large photo and $40 for a large frame. Sales tax is 5%.
How much total tax will a customer pay on both?
Answer the questions to show how to write and simplify expressions that represent the problem.

Answers

Answer:

The total amount that the consumer had to pay for both products was $ 94.50.

Step-by-step explanation:

Given that Mal sold a large photo for $ 50 and a large frame for $ 40, and that the sales tax for these products is 5%, to determine the total amount that the consumer had to pay to purchase these products arises from the following calculation:

(50 + 40) x 1.05 = X

90 x 1.05 = X

94.5 = X

Therefore, the total amount that the consumer had to pay for both products was $ 94.50.

Answer:

1. Evaluate the expression: $4.50

2. Expand the expression: 2.5 + 2 = 4.5 (4.50)

3. Total tax is 4.50. yes, both the evaluating and expanding got me the same answer.

4. Expanded Expression

Step-by-step explanation:

1.  0.05(50 + 40) evaluated is 4.50

2. I broke apart 4.50 into different numbers and got 2.5 + 2

3. pretty self explanatory

4. again, pretty self explanatory

Select all of the expressions that are equivalent to 5x + x2​

Answers

7x if you add the numbers and just keep the x the same
7x can we see the answer choices??

What is the reciprocal of 5 3/4 ?
3 4/5
4/23
5 4/3
23/4

Answers

Answer:

23/4

Step-by-step explanation:

5 x 4 = 20

20 + 3 = 23

23/4

What is the answer for the quotient

Answers

Answer:

0.91666666666

Step-by-step explanation:

if its wrong tell me

Answer:

10

Step-by-step explanation:

Strategy Keep change flip

Only use this strategy when dividing fraction not adding subtracting or multiplication

5/6 ÷1/12 would change to 5/ times 12/1

5/6 times 12/1 =60/6.

That an improper fraction so you see how many times 6 goes into 60 which is 10 times so the answer is 10

Hope I helped

Middle School had 480 students. At the end of the

year, it had 504 students. What is the percent of

change in the enrollment?​
explain.

Answers

Answer:

there is a 5% increase

Step-by-step explanation:

say 480=100%

4.8=1%

divide 504 by 4.8 you get 105,

so 504=105%

this is 5 more than 100 therefore 5%

7. Olivia purchases gifts for her mom and
grandma for Mother's Day. The first is a pair of
sunglasses for $16.35 and the second is a
bracelet. Her total is $39.75. How much did she
spend on the bracelet?
Bror Bracclet
Variable:
-
Equation:
Solution:

Answers

Answer:

Variable- it doesnt really matter. Im just going to use X.

Equation- $16.35 + x = $39.75.

The solution is $23.40

Step-by-step explanation: Basically you reverse the equation so it says $39.75 - $16.35 = x . Then you just subtract.

Answer:

$23.40

Step-by-step explanation:

To find how much she spent on the bracelet, subtract how much she spent on the pair of sunglasses from her total amount

$39.75- $16.35=$23.40

Find the probability that when four numbers from 1 to 100, inclusive, are picked at random with no repetitions allowed, either all are odd, all are divisible by 3, or all are divisible by 5.

Answers

Answer:

The probability is;

0.076

Step-by-step explanation:

The count of numbers from 1 to 100 is 100

Let’s find the number of odd numbers

We can use;

a + (n-1)d = T

a is 1, d is 2 and T is 99

Thus;

1 + 2(n-1) = 99

n-1 = (99-1)/2

n-1 = 59

n = 50

So there are 50 odd numbers

Probability of selecting an odd number is 50/100 = 1/2

If all 4 are odd, we have 1/2^4 = 1/16

Let’s get the multiples of 3

we can use

a + (n-1)d = T

a = 3, n = ? , d = 3 and T = 99

So;

3 + 3(n-1) = 99

n-1 = 34

n = 33

So the probability is 33/100

All 4 are divisible will give 33/100^4

Multiples of 5

a + (n-1)d = T

a = 5, n = ? , d = 5 T = 100

5 + (n-1)5 = 100

5(n-1) = 95

n-1 = 19

n = 20

Probability is 20/100 = 1/5

All

four are multiples of 5

1/5^4 = 1/625

So the probability is;

1/16 + 1/625 + 0.01185921

= 0.0625 + 0.0016 + 0.01185921 = 0.07595921


Simplify
8/-3 divided by -4/9
-3
9
O -8
O -6
O 6
O 8

Answers

Answer:

6 is the answer

Step-by-step explanation:

8÷ -3 = −2.6666666667

-4÷ 9 = −0.4444444444

−2.6666666667 ÷ −0.4444444444 =6.0000000007

The answer is 6.

6 is the answer for this

5 years ago, Cheryl was d years old, Brandon is 2 years older than Cheryl.

a. how old is Cheryl

b. how old is Brandon

c. what was the difference in their ages 5 years ago?

d. what is the sum of their ages now?

e. what will the sum of their ages be two years from now?

f. what will the difference of their ages be two years from now

will mark the brainliest.

Answers

Answer: See explanation

Step-by-step explanation:

a. how old is Cheryl?

Cheryl's age = d + 5

b. how old is Brandon?

d + 5 + 2

= d + 7

c. what was the difference in their ages 5 years ago?

Cheryl age five years ago = d

Brandon's age five years ago = d + 2

Difference = d + 2 - d = 2 years

d. what is the sum of their ages now?

Cheryl's age = d + 5

Brandon age = d + 7

Sum = d + 5 + d + 7

= 2d + 12

e. what will the sum of their ages be two years from now?

Two years from now,

Cheryl's age = d + 5 + 2 = d + 7

Brandon age = d + 7 + 2 = d + 9

Sum = d + 7 + d + 9

= 2d + 16

f. what will the difference of their ages be two years from now

Two years from now,

Cheryl's age = d + 5 + 2 = d + 7

Brandon age = d + 7 + 2 = d + 9

Difference = Brandon age - Cheryl age

= (d + 9) - (d + 7)

= 2 years.

3x-5y=15 find y when x=1

Answers

Answer:

-2.4

Step-by-step explanation:

3(1)-5y=15

3-5y=15

-3 -3

-5y=12

÷-5 ÷-5

y=-2.4

I'm sorry if it's incorrect! I tried!

There are 400 students at Washington Middle School, and 100 of them are in sixth grade. What percent of the students are in sixth grade?
Pick the model that represents the problem.

Answers

Answer:

25%

Step-by-step explanation:

Which statement describes the image?

Answers

Answer:

d.) none are correct

Step-by-step explanation:

it should be reflection over the y-axis then reflection over the x-axis

i’m pretty sure the answer is B

90.10 rounded to the nearest whole number?

Answers

Answer:

it would be 90 because it has o be a 5 to  9 to round up but is a 1so you can round up

Step-by-step explanation:

Find the y-intercept of the following equation. Simplify your answer.

y = x − 8

Answers

Answer:

Y can be anything

Step-by-step explanation:

Answer:

Step-by-step explanation:

-8

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