72 persons have enough food for 7 days . but after one day they decided to finish the food in 3 remaining days . For if they invited more persons how many persons did they invite?​

Answers

Answer 1

Answer:

We have been given that

72 persons has enough food for 7days.

After 1 day they decided to finish the food in remaining 3 days.

We need to find number of invitees to finish the food.

After one day there are 72 people and they have food for 6 days.

If people are changed n times, time will change to (1/n) of initial time.

\frac{1}{n}\times 6\ =\ 3n1×6 = 3

Therefore n = 2

Total number of people needed  = n × 72

Total number of people needed = 72×2

Total number of people needed  = 144

Hence the number of invitees = 144 - 72 =72

72 people are invited to finish the food in 3 days


Related Questions

slove each system of equations using graphing, substitution or elimination. y=2x-3 y=2x+3​

Answers

y=2x-3

y=2x+3

Since the both expressions 2x-3 and 2x+3 are equal to y, set them equal to each other forming an equation in x.

2x-3=2x+3

Cancel equal terms on both sides of the equation

-3=3

The statement is false for any value of x and y , so there is no solution

Fiona was thinking of a number. Fiona subtracts 11 from it and gets an answer of 33.9. What was the original number?

Answers

Answer: 44.9

Step-by-step explanation:

33.9+11 = 44.9

Answer:

44.9

Step-by-step explanation:

33.9+11=44.9

44.9-11=33.9

9. What is the value to the solution for the system of equations y = -5X-9 and y = 2x + 5.​

Answers

9514 1404 393

Answer:

  (x, y) = (-2, 1)

Step-by-step explanation:

Equate the two expressions for y.

  -5x -9 = 2x +5

  -14 = 7x . . . . . . . .add 5x-5

  -2 = x . . . . . . . . . divide by 7

Then ...

  y = 2(-2) +5 = 1

The solution is (x, y) = (-2, 1).

Please help me it would be AMAZING if you can!!!!

Answers

the answer is b (x is greater than or equal to 0 and less than 3)

Answer:

your answer will be (B)

What is the equation in slope-intercept form that passes through the points (-4, 47) and (2, -16)?

Answers

Answer:

y = 10.5x - 37

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Equality Properties

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

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define

Point (-4, 47)

Point (2, -16)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{-16-47}{2+4}[/tex]Subtract/Add:               [tex]m=\frac{63}{6}[/tex]Simplify:                        [tex]m=\frac{21}{2}[/tex]

Step 3: Find y-intercept b

Define:                    y = 21/2x + bSubstitute:              -16 = 21/2(2) + bMultiply:                  -16 = 21 + bIsolate b:                 -37 = bRewrite:                   b = -37

Step 4: Write linear equation

Combine all parts.

y = 21/2x - 37

y = 10.5x - 37

And we have our final answer!

Amani is mailing packages. Each small package costs her $3.40 To send. each large package costs her $4.30. how much will it cost her to send six small packages and seven large packages?

Answers

Answer:

the answer is $50.50,

Answer:50.50

Step-by-step explanation:

Of the 15 students in Danielle's class, 5 went to the zoo and the rest went to the aquarium. What is the ratio of the number of students who went to the aquarium to the total number of students?

Answers

Answer:

15:20=3:4

Step-by-step explanation:

please help me i need to turn this in

Answers

Answer:

d

Step-by-step explanation:

do this all the time

helppp mee pleaseeeeeeeee

Answers

Answer: It's false.

I believe you would do (5-3) first.

Answer:

false

Step-by-step explanation:

20 points
Need help ASAP!!!!!!!

Answers

Answer:

I can't see the assignment question. It says there is nothing attached...

Step-by-step explanation:

Joseph is making kebabs. He wants each kebab to have 3 pieces of meat and 4
pieces of vegetables.
Which of the following could Joseph use to make kebabs without any leftovers?

Answers

Answer:

Option D.

Step-by-step explanation:

From your comment, you said D was 30 pieces of meat and 40 pieces of vegetables. The starting ratio is 3:4. A true proportion is 3:4::30:40. 3 and 4 are both multiplied by 10 to get 30 and 40 therefore there would be no leftovers.

Sulins savings is 75% of Meifens saving. if Sulin save $300, how much does Meifen save?
A) $225
B) $425
C) $325

Answers

9514 1404 393

Answer:

  D) $400

Step-by-step explanation:

We are given the relations ...

  s = 0.75m

  s = 300

Then we can find m by equating the expressions for s:

  0.75m = 300

  m = 300/0.75 = 400

Meifen's savings is $400.

The coach took a digital photo of the new cycling team bike. She sent a 4 cm-by-6 cm photo to each team
member.
1. If the photo were enlarged to 150% of its original size, what would be its new length (long side)?
9
2. Suppose you want to make a 2 cm-by-3 cm copy of the original photo.
What percent should you use?
50%
3. What will be the measurement for each angle in the smaller photo?

Answers

Answer:

1. 9 cm

2. 50%

3. Assuming the photo is a rectangle, the answer would be 90 degrees on every angle (in a dilation, angle measurements are congruent).

Step-by-step explanation:

1. The long side is clearly the 6 cm side. multiply it by 1.5x (150%) and you get 9.

2. 2 is 50% of 4 and 3 is 50% of 6.

3. Assuming the photo is a rectangle, the answer would be 90 degrees on every angle (in a dilation, angle measurements are congruent).

A movie theater sends out a coupon for 75​% off the price of a ticket. Write an equation for the​ situation, where y is the price of the ticket with the​ coupon, and x is the original price of the ticket. Use pencil and paper. Draw a graph of the equation and explain why the line should only be in the first quadrant.

Answers

Answer:

x divided by 75% = y

Step-by-step explanation:

Answer:

0.25x

Step-by-step explanation:

Not what the guy on the top said.

What is the slope of the line through (–2. -6) and (2, 2)?

Answers

2 is the correct slope:)

Answer:

slope is 2

Step-by-step explanation:

Vary the scale factor n from values less than 1 to values greater than 1. How do the points in the resulting images differ from the corresponding points on the preimage? Describe the general location of the points relative to the center of dilation. What happens to the logo of the sailboat as you vary the scale factor?
PLATO

Answers

Answer: For values of n < 1, all the points on the image move closer to the center of dilation and the logo shrinks. For values of n > 1, all the points on the image move farther from the center of dilation and the logo expands.

Step-by-step explanation: PLATO sample answer. hope it helps :)

Answer:

For values of n < 1, all the points on the image move closer to the center of dilation and the logo shrinks. For values of n > 1, all the points on the image move farther from the center of dilation and the logo expands.

Step-by-step explanation:

plato sample

Overnight the temperature went from 39*F to -5*F. What is the difference in temperature?

Answers

Answer: The difference in temperature is -44 degrees.

Explanation: Since the new temperature is a negative number and the old was positive, you add them together. However instead of (-5) +39 (which the answer would be 35), you would write 5 +39 because -5 is 5 spaces away from 0. You can also check by using the equation 39 -44. You would get the answer -5, proving that the answer is indeed -44 degrees.
I think 44 but I don’t really know

Please help this is due today

ABDE is an isosceles trapezoid. Name one pair of congruent triangles that could be used to show that the diagonals of an isosceles
trapezoid are congruent.

Answers

9514 1404 393

Answer:

ΔABE, ΔBADΔAED, ΔBDE

Step-by-step explanation:

Each diagonal divides the figure into two triangles. Either could be used with its counterpart to show congruence of the diagonals.

ΔABE and ΔBAD, orΔAED and ΔBDE

Please Hurry i need help.. it’s on a google form and if i don’t put the answers quick enough it’ll log me out.

Answers

Answer:

hiii, its B. 1/8. let me know if you need more help

The Sarsen Circle at Stonehenge has a circumference of 304.7 feet. What is the radius in feet of the Sarsen Circle?

Answers

Answer: r≈48.49ft

Step-by-step explanation:

hoped that help if so plz mark me brainlest =)

what equation is equivalent to -12+(-4/5)+31

Answers

Answer: -12 + (4/5) + 31 = 18.2

Help meee please!!!!!!!!!!!!!!!!

Answers

Answer:

i think it A

Step-by-step explanation:

What is a really good better buy question​

Answers

Answer:

what?

Step-by-step explanation:

Answer: huh? lol

Step-by-step explanation:

Mr.morales makes a table of the number of chaperones needed for different number of students attending a field trip. the ratio of parent chaperones to students is a constant proportion. what is the missing number in Mr.morales table.​

Answers

Answer:

mark brainest

Step-by-step explanation:

Answer: 48

Step-by-step explanation:

Because, its multiplying by 8.

2×8= 16

4×8=32

6×8=48

8×8=64

In 2020, a town was recorded as having a population of 10,000 and is predicted to grow at 5% every year. What will be the population in 2035, to the nearest whole number? *

Answers

Answer:

20789

Step-by-step explanation:

The equation of exponential growth is y=A(1+r)^t

A=10,000

r (rate)=0.05 (5% as a decimal)

t (time)=15 (2035-2020=15)

y=10,000(1+0.05)^15

y=20789.2817

you can't have part of a person, so y=20789

A chemist has three different acid solutions. The first acid solution contains 15 % acid, the second contains 35 % and the third contains 65 % . He wants to use all three solutions to obtain a mixture of 72 liters containing 45 % acid, using 2 times as much of the 65 % solution as the 35 % solution. How many liters of each solution should be used?

Answers

Answer:

18 liters 15% acid

18 liters 35% acid

36 liters 65% acid

Step-by-step explanation:

Let's say x is the volume of 15% acid, y is the volume of 35% acid, and z is the volume of 65% acid.

x + y + z = 72

z = 2y

The amounts of acid add up to the final amount.

0.15x + 0.35y + 0.65z = 0.45 (72)

Substitute the expression for z into both equations.

x + y + 2y = 72

0.15x + 0.35y + 0.65 (2y) = 0.45 (72)

Simplify:

x + 3y = 72

0.15x + 1.65y = 32.4

Solve for x in the first equation, then substitute into the second.

x = 72 − 3y

0.15 (72 − 3y) + 1.65y = 32.4

Solve for y.

10.8 − 0.45y + 1.65y = 32.4

1.2y = 21.6

y = 18

Now find x and z.

x = 72 − 3y = 18

z = 2y = 36

18 liters 15% acid, 18 liters 35% acid and 36 liters 65% acid should be used.

What is percentage?

Percentage is a measurement to find the value of a given number out of a hundred.

Let x is the volume of 15% acid, y is the volume of 35% acid, and z is the volume of 65% acid.

Given that, the total mixture is 72 liters,

Implies that,

x + y + z = 72

Also,65% solution is used two times as 35% solution is used.

z = 2y

The amounts of acid add up to the final amount.

0.15x + 0.35y + 0.65z = 0.45 (72)      

Substitute the value of z here,

0.15x + 0.35y + 0.65 (2y) = 0.45 (72)

Simplify

x + 3y = 72

0.15x + 1.65y = 32.4      

Solve for x in the first equation, then substitute into the second.

x = 72 − 3y

0.15 (72 − 3y) + 1.65y = 32.4

Solve for y.

10.8 − 0.45y + 1.65y = 32.4

1.2y = 21.6

y = 18

Now find x and z.

x = 72 − 3y = 18

z = 2y = 36

18 liters 15% acid, 18 liters 35% acid and 36 liters 65% acid should be used.

To learn more about Percentage on:

https://brainly.com/question/24120406

#SPJ2

HELP!! What value of y makes the equation 4x – 3y = 17 true, when x = 2?

Answers

Answer:

y=  -3

Step-by-step explanation:

4(2) - 3y = 17

8-3y=17

-8       -8

-3y=9

______

     -3

y=-3

Answer:

y = -3

Step-by-step explanation:


The shorter leg of a right triangle is 8 less than the hypotenuse. The longer leg
is one less than the hypotenuse.
What is the length of the hypotenuse? *
What is the perimeter of the triangle?

Answers

Answer:

b

Step-by-step explanation:

Lianne is saving to buy a DVD player that costs 2 1\2 times her weekly allowance. If she spends 3\4 of her allowance on other things, how long will she take to save the money for the DVD player?

Answers

Answer:

She will take 10 weeks to save the money for the DVD player

Step-by-step explanation:

Let w = Lianne's weekly allowance.

The DVD player costs 2 1/2 times her weekly allowance, thus

DVD cost = 5/2w

She gets w every week but spends 3/4w on other things, thus the remaining money is

Weekly savings =w - 3/4w = 1/4w

To know the number of weeks needed, we divide the DVD cost by the weekly savings:

[tex]\displaystyle N = \frac{\frac{5}{2}}{\frac{1}{4}}[/tex]

Operating:

[tex]\displaystyle N = \frac{5}{2}*\frac{4}{1}[/tex]

N = 10

She will take 10 weeks to save the money for the DVD player

out of the 4, which is the solution?​

Answers

Answer:

x=0

Step-by-step explanation:

You can substitute 2-6y in for x to create

9y +2(2-6y) = 3

9y + 4 -12y = 3

-3y = -1

y=1/3

Then plug in y for x=2 -6y

x= 2-6(1/3)

2-2=x

x=0

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