Mathematics College

If the value of "y" varies directly with "x"
and y = -8 when x = 4.
Find "y" when x = -4.

Answers

Answer 1

Answer:

-16

Step-by-step explanation:

because y varies directly with 4 when you remove 8 from 4 you get -4 and when you remove it from -8 you get -16

Answer 2

The value of y is 8 for the given condition.

What is linear equation?

Linear equation is an algebraic equation in which each term has an exponent of one and the graphing of the equation results in a straight line. Generally, the equation is of the form Ax+B=0.

For the given situation,

The value of "y" varies directly with "x" and y = -8 when x = 4.

First we need to form the equation for this condition as  [tex]y=kx[/tex].

Here, x=4 and y=-8

⇒ [tex]-8=k(4)[/tex]

⇒ [tex]k=-2[/tex]

Now substitute the value of k and x=-4 in the above equation to get the value of y,

⇒ [tex]y=kx[/tex]

⇒ [tex]y=(-2)(-4)[/tex]

⇒ [tex]y=8[/tex]

Hence we can conclude that the value of y is 8 for the given condition.

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Related Questions

A rectangular garden has an area of 71.44 m2. If the width of the garden is 7.6 m, what is the length in meters?

Please help I am stuck on the problem!!!!!!!!!!!!!!

Answers

Since area= length•width, for this u would have to divide the area by the width to get the length, i hope this helps

When you have finished, use your Whisper voice to read each number out loud in both
unit and word form. How much does each number need to change for a ten
For 1 hundred?

Answers

100- 10 is 90 if that’s the question
So 90 or ninety
If you mean place value it’s tenths

The required numbers should be changed only by a unit, as proceeding from ten to 1 hundred.

Given that,
To determine how much each number needs to change for a ten for 1 hundred.

What is a number system?

A number system is described as a technique of composing to represent digits. It is the mathematical inscription for describing the numbers of a given set by using numbers or other characters in a uniform method. It delivers a special presentation of every digit and describes the arithmetic structure.

Here,
According to the question,
The number from ten to 1 hundred,
10, 11, ......,99, 100.
From the above series, it can be concluded that each number is greater than by unity from the previous number.

Thus, hte required numbers should be changed only by a unit, as proceeding from ten to 1 hundred.

Learn more about the number system here:

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help ⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️⁉️ 3) Scott is twice as old as Ben. Donna is 6 years older than Ben. The sum of their ages is 34. How old are Donna, Scott, and Ben?​

Answers

Answer:

S=2B

D=B%2B6

S%2BD%2BB=34

Substitute,

2B%2BB%2B6%2BB=34

 

4B%2B6=34

4B=28

B=7

Then,

S=2%287%29=14

D=7%2B6=13

Step-by-step explanation:

hope this helps

Answer:

donna is 13

scoot is 14

ben is 7

Step-by-step explanation:

2x+6=34 2x+6-6=34-6 2x=28[tex]\frac{2x}{2} =\frac{28}{2}[/tex]x=14

Which decimal and percent represents 7/8

Answers

Answer:

decimal - 0.875

percent - 87.50%

Step-by-step explanation:

Round 985, 932 to the nearest thousand.

Answers

Answer:

900

Step-by-step explanation:

A painter can paint 3 walls in one hour. Which graph models a relationship with the same unit rate?​

Answers

Answer:

the bottom faded looking one

Step-by-step explanation:

What is the solution for -10 -19 x -1

Answers

Answer:

9

Step-by-step explanation:

2l+2w for l = 5.2 and w = 6.7

Answers

Answer:

23.8

Step-by-step explanation:

2(5.2) + 2(6.7) = 23.8

Answer:

23.8 ...............

Step-by-step explanation:

I asked my alexa.

what is 0.1691÷8.9 ​

Answers

Answer:

use a calculator

Step-by-step explanation:

Answer:

0.019

Step-by-step explanation:

identiy why trade improved during the middleages.
this is the question.

Answers

Answer:

intermarriage

Step-by-step explanation:

people from different part intermarried

Answer:

dont know

Step-by-step explanation:

2)
Mike went to the doctor and was found to be 20 pounds overweight.
The doctor discovered that Mike ate an average of 2000 calories per
day. He said for Mike to lose weight and meet his goal, the maximum
amount of calories he could eat per day was 1750. How many calories
will Mike be cutting out each week (7 days)?

Answers

Answer:

1750 Calories

Step-by-step explanation:

2000-1750=250

250x7=1750

you have $6.17. you buy 7 items that cost $0.76 each. how much money do you have left

Answers

Answer:

$0.85

Step-by-step explanation:

if you multiply 7x0.76=5.32

and then subtract the 6.17-5.32=$.85

Answer:

.85

Step-by-step explanation:

Multiply .76x7 then subtract 5.32 from 6.17 and you get 0.85.

B angle is what degree
C angle is what degree

Answers

Answer: B= 55°, C= 125°

Step-by-step explanation:

1) B is vertical to 55°, so B=55°

2) B and C are supplementary, so C=180-55°=125°

Answer:

125 degrees

Step-by-step explanation:

40% of what number is 50.8? Help.

Answers

Answer:

20.32

Have a beautiful day!

Answer:

127

Step-by-step explanation:

Simplify x^-5

please please I need it please please please please please please

Answers

Answer:

[tex]1/x^5[/tex]

Step-by-step explanation:

[tex]x^-^y = 1/x^y[/tex]

Answer:

1/x^5

Step-by-step explanation:

When you have a negative exponent, you have to put 1 over that power without the negative sign in the exponent. You put 1 over x^5

Answer: 1/x^5

Solve the inequality below
-8x + 4 > 20
Include x and number in answer

Answers

Answer:

x<-2

Step-by-step explanation:

You first subtract 4 from both sides. Then you divide both sides by -8 (note: when you multiply or divide by a negative the sign flips. Then you get your answer

2688 divided by 96 with remainder

Answers

Answer: OK, the answer is 28.

Step-by-step explanation: Also there is no remainder for this division problem, you could have the remainder if the numbers are not the same as a multiplication problem, so did you get it?

Find the difference: 65.12 - 3.1.

Answers

Answer:

62.02

Step-by-step explanation:

Answer:

It's 62.02

Step-by-step explanation:

65.12

- 3.10

6 2.02

   

Factor f(x)= 2x^4 -12x^3 +6x +20x and please show all steps

Answers

Work provided in image. Hope this helped

A train traveled from one city to another city in 4 hours at a speed of 70 mph.
The retum trip was made in 5 hours. Find the speed for the return trip.

Answers

Answer:

56miles/hr

Step-by-step explanation:

Given parameters:

Time taken for the to travel  = 4hrs

Speed of the train  = 70mph

  From this data, let us find the distance of the trip;

Distance  =Speed x time

  Therefore, insert the parameters;

          Distance  = 70mph x 4hr = 280miles

Now;

  Return trip took, 5hrs,

Speed  = ?

  Speed  = [tex]\frac{distance}{time}[/tex]  

Insert the parameters and solve;

     Speed  = [tex]\frac{280}{5}[/tex]   = 56miles/hr

A 100-square grid has 70 shaded squares. Explain how you could express this model as a fraction, percent, and decimal.

Answers

Answer:

sample answer : 70 out of 100 is the ratio  , so it represents 70%.  can be reduced by dividing the numerator and the denominator by 10 to get the reduced fraction . Dividing 7 by 10 results in the decimal equivalent 0.70

Step-by-step explanation:

Answer:

70 out of 100 is the ratio, so it represents 70%. It can be reduced by dividing the numerator and the denominator by 10 to get the reduced fraction. Dividing 7 by 10 results in the decimal equivalent 0.70.

Step-by-step explanation:

IM TIMED PLZ HELP Which values of a, b, and c correctly represent the answer in simplest form? a= 38, b= 14, c= 1 a= 1, b= 14, C = 38 a= 1, b= 7, C= 19 a= 19, b= 7, C= 1​

Answers

Answer:

you're right, a=1 b=7 c=19

Step-by-step explanation:

PLEASE HELP 50 POINTS!!

Answers

Answer:

Step-by-step explanation:bdhdhshsbnskaosnndndkwo

Answer:

(5x * 1y) + (1x * 3y)

Step-by-step explanation:

Feel free to give brainliest

Have a great day!

A snowboard shop charges $10, plus an additional #3 per hour to rent a snowboard. Write the equation for the line in slope-intercept form.

HURRY HELP PLS!!

Answers

Answer:

y = 3x + 10

Step-by-step explanation:

Answer:

im pretty sure it is (0,5) or (10,0)

Step-by-step explanation:

Ask questions slove for x 5(x-3)=15

Answers

Answer:

Step-by-step explanation:

Your answer is 6

26. the type of tissue that sends
electrical signals through the
body

Answers

Answer:

Nervous tissue

Step-by-step explanation:

Nervous tissue sends electrical signals. Muscle tissue helps produce movement. Connective tissue joins, protects, and cushions organs.

Someone help me with this, it’s due today

Answers

Answer:

use points (1,1) and (0,2) for the rise and run

slope is 1

I hope this is good enough:

Answer:2\2

Step-by-step explanation: you can see it at 2\2

mark sets the dinner table every 2 days and dries the dishes every 3 days if he sets the table on day 2 and dries the dishes on day 3 on what day would mark first perform both chores on the same day

Answers

Answer:

On day 6 Mark will do both chores.

Step-by-step explanation:

You have to find the LCM (Least Common Multiple) of 2 and 3. The LCM is 6 so therefore it is day 6.

PLS HELP
John was 3 5/8 feet tall when he was three years old. He is now 6 1/4 feet tall. How many feet did he grow in total?
Prediction:_________________________________________________
Expression: ______________________________
Simplify

Answers

turn the 5/8 into 2.5/4 then add 1/4. Now it is 3.5/4. Add 3 + 6 = 9 so you add the 3.5/4 and it turns into 9 3.5/4. Subtract 3 and you get your answer?

                                         -Can I please have Brainliest

Plssss help me omg

If AB = BC and AB = 50-2x and BC = 8x +5, find the length of AB.
0 20.8 units
O 41.0 units
O 4.5 units
O 8.4 units

Answers

4.5 units

If you look at the picture I showed my work, but if you substitute the variables for their corresponding equations then equal them and solve you get 4.5.
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