Suppose y varies directly as x, if y = 15 when x = 12, find x when y = 21.

Answers

Answer 1

Answer: x = 26

                    1

                     -

                     4

Answer 2

Answer:

16.8

Step-by-step explanation:

we have to do  Unitary method.

when y=15 then x=12

when y=1 the x=12/15

when y=21 then x=(12*21)/15

x=16.8


Related Questions

PLEASE HELP.

I’m not good at algebra and I’m stuck.

Answers

The first graph represents the given function, f(x) = x + 4.

In f(x)= x + 4, the slope, m =1, is positive (rise 1 unit, run 1 unit). This means the graph is inclining from left to right. Also, the y-intercept is (0, 4).

These descriptions matches graph 1.

Help WILL NAME BRAINLIEST

Answers

4= 21, 2=21, 4=159 hope this helps

Cuál es la solución de la ecuación 9 x + 1 = 2x + 15

Answers

Answer:

X=2

Step-by-step explanation:

9x+1=2x+15

1. restar 1 de ambos lados  ejemplo: 9x+1-1=2x+15-1

2. simplificar Ejemplo: 9x=2x+14

3. restar 2x de ambos lados ejemplo: 9x-2x=2x-2x+14

4. simplificar ejemplo: 7x=14

5.divide ambos lados entre 7 ejemplo: 7x/7= 14/7

6.Simplificar ejemplo: x=2

yall... help pls this is hard

Answers

Answer:

First one Or Last. I think the last one though

Step-by-step explanation:

Solve for x

9x+7=30

round to the nearest tens digit.

Answers

X=2.5
9x=23
Divide both sides by nine and you get 2.555555555555555
So just say 2.5 recurring

Pls answer need to double check

Answers

if you're looking for someone to double-check I just did and you're right.

Answers:

x = 60y = 70

============================================

Explanation:

The parallel lines show that x = 60 since the 60 and the x angles are alternate interior angles. Alternate interior angles are congruent when we have parallel lines like this.

Focusing on the largest triangle, the three angles add to 180 degrees

x+y+50 = 180

60+y+50 = 180

y+110 = 180

y = 180-110

y = 70

This triangle appears to be equilateral, but it's not entirely so (it's fairly close however). That 50 degree angle in the bottom right corner would need to be 60 degrees for it to be equilateral.

Question 15 of 25

Solve the formula V = s2h for s.

O A. s = 1V - h

B. s=

V

C. s =

11 부

O D. s= Vh

Answers

Answer:

s = [tex]\sqrt{V/h}[/tex]

Step-by-step explanation:

divide by 'h', then take square root of 's' to get:

s = [tex]\sqrt{V/h}[/tex]

Please help ASAPP!!!!!

Order the expressions from least value to greatest value.

Answers

Answer:

-4.8 • 3.2 < 4.2 divided by -3 < -2 3/5 - (-1 2/5) < 2 1/4 + (-1 2/5)

Hope it helps!

Graham drove 42 1/3 miles in 1 1/3 hours. What is the unit rate for miles per hour? Use pencil and paper. Describe a situation in which the unit rate would be easier to work with than the given rate.​

Answers

Answer:

Step-by-step explanation:

42+(1/3)

42*(3/3)+(1/3)

(126/3) + 1/3

126/3 + 1/3 = 127/3 miles

4/3 hours

(127/3)/4/3)

(127/3)*(3/4)

= 127/4 or 31.75 miles/hour

It would have been nicer if we were told Graham's distance after 1 hour (when he had travelled 31.75 miles).

A factory makes 84 toys robots in a day after they purchase new equipment now they make 205 robots a day

Answers

Based on the given information the percent gain is 144%.

Initial production rate = 84 toy robots per day

Present production rate = 205 robots per day

Using this formula

Percent gain=  Increase in production rate /Initial production rate× 100  

Where:

Increase in production rate = 205 - 84 =121

Initial production rate = 84 toy robots per day

Let plug in the formula

Percent gain=121/84×100

Percent gain=144%

Inconclusion the percent gain is 144%.

Learn more here:

https://brainly.com/question/20824377

can someone please help me with this

Answers

Answer:

Add 8 and 8 and then add 5and 5 and get answer 16

Step-by-step explanation:

PLEASEEE HELP ME WITH THIS QUESTION!!! I WILL MARK THE BEST ANSWER BRAINLIEST AND GIVE EXTRA POINTS!!

Answers

Answer:

Umm... I'd love to help but... you didnt post a question. Was that an accident?

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The absolute value measures the distance from zero on a number line. A negative number will have the sign change,

find the next three term of sequence of 1,3,5,7,9,11,...​

Answers

The answer is 13 you’re adding 2 to each number

This is 8th-grade math please help

Answers

FOR NUMBER ONE 7.25/per jersey
shipping=$9.99

7.25x 20=$145.00
145+9.99
total is $154.99

LAST 1 I SWEARRRR !!

Answers

Answer:

100 i believe

Step-by-step explanation:

I guess subtract 45 from 145

Answer:

80 look at the angels it 80! i had the same exact test today

Step-by-step explanation:

can someone help please? u dont have to show work so dont mind that

Answers

Answer:

Factor the numerator and denominator and cancel the common factors.

x/4+3/2 or 32/4  or Reduce the expression, if possible, by cancelling the common factors. 8 is your final answer

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

First, you substitute.

x + 6 / 4

26 + 6 / 4

Then, you add.

26 + 6 = 32

Finally, you divide.

32 / 4 = 8

Answer: 8

Donald can type 240 words in 6 minutes. How long will it take him to type a 1000-word essay if he types at the same rate?

Fill in the blanks with the correct values.

Answers

25 minutes

(6*1000)/240

help asap

Which ordered pairs are solutions to the inequality – 2x +y> -4? Select each correct answer (3, -1) (1, - 2) 12 (0, -5) (-1, 1) (0, 1)

Answers

the answer is (3,1)(1,-2)

If 3m = 19 - n and 2m + 5n = 30, then what is the value of m?

Answers

Answer:

m=5

Step-by-step explanation:

We can solve this by using a system of equations. The easiest way to solve this is by using substitution.

3m=19-n       Subtract both sides by 19 to find n.

-19  -19

3m-19=-n      Divide everything by -1 to make n positive.

/-1        /-1

n=-3m+19

Now, we can substitute n into the second equation.

2m+5(-3m+19)=30    Substitute (-3m+19) into n.

2m-15m+95=30       Simplify.

-13m+95=30              Simplify and subtract both sides by 95.

        -95 -95

-13m=-65                    Divide both sides by -13.

/-13    /-13

m=5

We don't need to solve for n at all, so that is the answer!

Hope this helps, and have an amazing day ♥

What’s the mean, variance and standard deviation

Answers

Answer:

Step-by-step explanation:

binomial distritubtion

mean= n*p

.23*300= 69

variance= n*p*(1-p)

.23*300*(1-.23)=53.1

standard deviation= sqrt(variance)

sqrt(53.13)= 7.3

95 people went to a convention in San Francisco. They took three large vans and 50 people traveled by car. How many people fit in each large van. Write an equation first, then solve

Answers

Answer:

15

Step-by-step explanation:

95 - 50 = 45

45/3 = 15

can someone help me solve this Y= q-k/n for q

Answers

Answer:

q=y + K/n

Step-by-step explanation:

Give the x-intercept for the equation 6x + 3y = -9

Answers

Answer:

-9/6 or -3/2

Step-by-step explanation:

To find the x intercept, substitute y = 0 into the equation:

6x + 3(0) = -9

Now simplify,

6x + 0 = -9

6x = -9

x = -9/6 → -3/2

Tip: If you were finding the y-intercept, you would substitute x = 0 into the equation instead

264 devided by 2= also i am sending more so look out

Answers

Answer:

132

Step-by-step explanation:

i need this answered FAST!!! please make sure to show the work!!!!!!

Answers

Answer:

thanks thanks thanks thanks thanks thanks for your points

Marsha is twice as old as Karli. The sum of their ages seven years ago was 13. How old
are they now?

Answers

Answer:

20

Step-by-step explanation:

the twis old as karli

the sum of their ages 7 years ago

13+7=20

What will be the total cost for 10 hours of work? ​

Answers

Answer:

Datas are not given

................

Provide context for the question?

A caterer will provide the meal for the football banquet. The caterer charges a base fee of $400 plus $6 per plate.

A. Write an equation for the function where y represents the total cost and x represents the number of guests.

B. What does the slope mean in this situation?

C. What does the y-intercept mean?

Answers

Answer: y = 6x + 400

slope = the increase in cost per extra plate

y-intercept = total cost

Solve. −6 1/4x=−3 1/8 What is the solution to the equation? Enter your answer as a simplified fraction in the box.

solve for x

Answers

X would be equal to -0.5

Answer:

its 1/2 did the k12 quiz :)

Tabitha sent 22 text messages every day for 7 days. How many messages did she send total?
154 messages
176 messages
164 messages
144 messages

Answers

22 x 7 = 154
She sent 154 messages

Answer:

the answer is 154

Step-by-step explanation:

22x7=154

Other Questions
what is a primary difference between a note receivable and an account receivable? Triangles PQR and STU are similar. The length of PQ = 36 cm, RP = 48 cm and QR = 24cm. THe length of the longest side of triangle STU is 92 cm. What is the perimeter oftriangle STU? Write a summary of the video. 3 -5 sentences over Non-commutable diseases __% of 4 is 7Please answer its due today Evaluate f(x)=2x+8 when x=2, x=0, and x=5. Find the measure angle measure. A process of transferring a fully established seedling from one place to another. What farm activity is this? I am able to fill a glass of water to the top and it does not overflowwhich property of water allows this to happen Which law explains why when you bump into something? a spring vibrates 120 times in 2 mins find its frequency and time period Think about the ways modern society borrows from ancient Greece and Rome. Recall things in your life that are influenced by these ancient cultures. LIST AT LEAST 10 OF THEM!!!Brainliest, thanks, and 40 points to the person who answers correctly WITHOUT COPYING AND PASTING Water drains from a 60 gallon bath tub at a constant rate. It empties in 5minutes. What is the rate?10 gal/ minute-10 gal/ minute-12 gal/ minute-15 gal/ minute Hello who here is good at math i need help if you can help me with some assignments then please do what is a set? describe the use of braces for listing the members of a set. HELP ME PLEASE I NEED CORRECT ANSWER the ________ of an organism is the physical appearance resulting from the expression of the genes present. Given: 3jk 2 + =15 4k Prove: j = 10 3k When converted to a household measurement, 9 kilograms is approximately equal to a Please help! Geometry. Proving alternate exterior angles congruent answers A: -Angle 2 is congruent to angle 3-Angle 2 is congruent to angle 6-Angle 3 is congruent to angle 7-Angle 3 is congruent to angle 6B: -Angle 3 is congruent to angle 6 -angle 3 is congruent to angle 7 -angle 6 is congruent to angle 7 -angle 4 congruent to angle 5 Please answer these and find the slope intercept form for each one. Best answer gets brainiest!