1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Norma-Jean [14]
3 years ago
11

A package of cookies, packed , ate the fourth part at breakfast , then 3/5 at tea time. there are still 18 cookies in the pakage

...
¿how many cookies were in the package ?
Mathematics
2 answers:
Kay [80]3 years ago
7 0
Break fast =  1/4
Tea time =  3/5
Still 18 left.

Fraction left =  1 - (1/4 + 3/5) = 

1/4 + 3/5 =  (1/4)*(5/5) + (3/5)*(4/4) = 5/20 + 12/20 = (5 + 12)/ 20

 = 17/20

Fraction left =  1 - (1/4 + 3/5) =  1 - 17/20 = (20 - 17)/20 = 3/20

Fraction left = 3/20

Assuming total number of cookies in the package is x.

(3/20)x = 18

3x/20 = 18

3x = 18*20

x = 18*20/3 = 120

There were 120 cookies in the package.  
Leno4ka [110]3 years ago
5 0
Ok so
1/4 of total eaten
3/4 left
3/5 of 3/4 eaten
9/20 left
18=9/20 of whole
multiply both sides by 20
360=9 of whole
divide both sides by 9
40=whole


40 total originlly

You might be interested in
Alpha bought 4 pies, which he plans to share with a group of his friends. If there is exactly enough to give each member of the
Gnesinka [82]
There are 24 people, there are 4 pies and they each get 1/6th, 4x6=26

The entire race was 8 hours. If 3/4th of the race was 6 hours, 6/3=2 meaning 1/4th of the race is 2 hours and the full thing being 8.
6 0
3 years ago
Find the period of the function. y=3 sin x/8
Alexus [3.1K]

Answer:

The period of given function is  Period = 16\pi

So, Option B is correct.

Step-by-step explanation:

In this question we need to find the period of the function y= 3 sin x/8

The formula used to find period of function is: \frac{2\pi }{b}

We need to know the value of b.

To find the value of b we compare the standard equation with the equation of function given.

Standard Equation: y = a sin(bx - c) +d

Given Equation: y= 3 sin(x/8)

Comparing we get:

a= 3

b= 1/8

c= 0

d=0

So, we get the value of b i.e 1/8. Putting it in the formula to find period of given function.

Period = \frac{2\pi }{b}

Period = \frac{2\pi }{\frac{1}{8}}

Solving,

Period = 2\pi *8

Period = 16\pi

So, the period of given function is  Period = 16\pi

5 0
3 years ago
2. What is the longest poster you could fit in the
aalyn [17]

Answer:

idont know and sorry i answerd this but its to get my frien.d back hopefully. sorry

5 0
3 years ago
Solve the following:
Yuliya22 [10]

Answer:

-4

Step-by-step explanation:

9^2+19/(10^2-5^3)

9^2+19/(10^2-5^3)=81+19/100-125

9^2+19/(10^2-5^3)=81+19/100-125=100/-25

9^2+19/(10^2-5^3)=81+19/100-125=100/-25= -4

7 0
2 years ago
What does it mean when we say that the tails of the normal curve are asymptotic to the x axis?
slava [35]
It means that the tails never actually *touch* the x-axis, but it gets infinitesimally close to it.
4 0
3 years ago
Other questions:
  • In a basketball shooting competition there are ten balls from 1-10. The number of points earned is based on the number on the ba
    13·1 answer
  • Write an equation of a circle whose center is (-3,2) and whose diameter is 10
    8·1 answer
  • There are 240 students that in misty’s School. This is 5% of the total students in the school district. How many students are th
    9·1 answer
  • Which formula is used to find the volume of a cone ​
    6·2 answers
  • Xtrapolated Data Predictions
    6·2 answers
  • a family went on a vacation and used 5.4 gallons of gasoline to travel 150 miles.how many total gallons of gasoline will they ne
    8·1 answer
  • I found a picture showing how pi = 4. What is wrong with this picture?
    12·2 answers
  • Baby Rachel wants to arrange 12 blocks in a row. How many different arrangements can she make
    9·1 answer
  • Can someone help me with this math problem 26.04 divided by -6.2
    14·1 answer
  • Determine the domain and the range of the graph.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!