answer.
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
Ronch [10]
2 years ago
7

Jiaqi,Gwen and Patricia painted rhe walls of a room together . Jiaqi painted 4/7 of the walls . Gwen and Patricia painted an equ

al amount of the remaining area of the walls. Jiaqi painted 2/5 m2 more than the area that Gwen and Patricia each painted. Find the total area of the walls they painted.Give your answer as a mixed number in its simplest form
Mathematics
1 answer:
photoshop1234 [79]2 years ago
8 0

Answer:

1 3/25 m2.

Step-by-step explanation:

Let the portion of the wall painted by Jiaqi, Gwen and Patricia be denoted as X, Y and Z respectively.

Jiaqi (X):

= 4/7

Gwen (Y):

=1/2*(1 - 4/7)

= 1/2*(3/7).

= 3/14.

Patricia (Z):

=1/2*(1 - 4/7)

= 1/2*(3/7).

= 3/14.

Area of the wall painted:

Let the area of the wall painted by Gwen and Patricia be Y + Z.

The area painted by Jiaqi = 2/5 + Y + Z

Therefore,

4/7 = 2/5 + Y + Z

The ratio of portions painted by:

Jiaqi : Gwen : Patricia : Total

4 : 3/2 : 3/2 : 7

Multiple by 2,

8 : 3 : 3 : 14

= (X - (Y + Z))

8 – 3 = 5,

but, 5 units = 2/5,

Total units, 14 units = 28/25

= 1 3/25

1 3/25 m2.

You might be interested in
HELP PLEASE I NEEED HELP!!!!
Nina [5.8K]
It is d just trust me
4 0
2 years ago
The cafeteria staff made sandwiches. Each sandwich had either rye or white bread, either ham or turkey, and either cheese or no
Anit [1.1K]

Answer:

1/2 (1 half)

Step-by-step explanation:

The number of different sandwiches is calculated multiplying all of the possibilities for each material used:

rye or white bread: 2 options

ham or turkey: 2 options

cheese or no cheese: 2 options

So the number of different sandwiches that can be made is 2*2*2 = 8.

From these 8 different sandwiches, 4 have cheese and 4 have no cheese, as the staff made a equal number of each type of sandwich.

So, if from 8 different type of sandwiches, 4 have cheese, the chances of Mary getting a sandwich with cheese is 4/8 = 1/2 (1 half).

8 0
2 years ago
A rancher’s herd of 250 sheep grazes over a 40-acre pasture. He would like to find out how many sheep are grazing on each acre o
Basile [38]
8.2 sheep grazong on each acre
3 0
2 years ago
Read 2 more answers
Uma urna contém 10 bolas identificadas pelas letras A, B, ..., J. Uma bola é extraída ao acaso da urna e sua letra é observada.
arlik [135]

Answer:

a) Probability that a letter of the drawn ball is vowel = (3/10) = 0.30

b) Probability that a letter of the drawn ball is consonant = (7/10) = 0.70

a) Probabilidade de uma letra da bola sacada ser vogal = (3/10) = 0.30

b) Probabilidade de uma letra da bola sacada ser consoante = (7/10) = 0,70

Step-by-step explanation:

English Translation

A ballot box contains 10 balls identified by the letters A, B, ..., J. A ball is drawn at random from the ballot box and its letter is observed. (Make the sample space and all events explicit). What is the probability that a letter of the drawn ball is: a) Vowel b) Consonant

Solution

The 10 balls are identified by A, B, C, D, E, F, G, H, I and J

Note that the probability of an event is given as the number of elements in that event divided by the number of elements in the sample space.

a) Probability of drawing a ball that has a vowel letter = P(v)

P(v) = n(v) ÷ n(S)

n(v) = Number of balls with vowel letters = 3 (that is, A, E and I)

n(S) = Total number of balls = 10

P(v) = (3/10) = 0.30

b) Probability of drawing a ball that has a consonant letter = P(c)

P(c) = n(c) ÷ n(S)

n(c) = Number of balls with consonant letters = 7 (that is, B, C, D, F, G, H and J)

n(S) = Total number of balls = 10

P(c) = (7/10) = 0.70

In Portugese/Em português

As 10 bolas são identificadas por A, B, C, D, E, F, G, H, I e J.

Observe que a probabilidade de um evento é fornecida como o número de elementos nesse evento dividido pelo número de elementos no espaço de amostra.

a) Probabilidade de desenhar uma bola com uma letra de vogal = P (v)

P (v) = n (v) ÷ n (S)

n (v) = Número de bolas com letras de vogal = 3 (ou seja, A, E e I)

n (S) = Número total de bolas = 10

P (v) = (3/10) = 0,30

b) Probabilidade de desenhar uma bola com uma letra consoante = P (c)

P (c) = n (c) ÷ n (S)

n (c) = Número de bolas com letras consoantes = 7 (ou seja, B, C, D, F, G, H e J)

n (S) = Número total de bolas = 10

P (c) = (7/10) = 0,70

Hope this Helps!!!!

Espero que isto ajude!!!!

3 0
2 years ago
True or false a corollary is a statement that can be easily proved using a theorem
sammy [17]

Answer:

The given statement is true.

Step-by-step explanation:

A corollary is a statement that can be easily proved using a theorem. This statement is true.

A corollary is usually defined as some idea formed from something that is already existing or already been proven.

This is the reason it is not difficult to prove as it has already been proven.

7 0
2 years ago
Other questions:
  • What's the answer please help
    7·2 answers
  • A basketball team plays 3 games in a holiday tournament. According to the tree diagram, how many outcomes are possible?
    5·2 answers
  • Find the sum and express it in scientific notation. 0.00348 + (6.2 x 10-2)
    5·2 answers
  • A science test, which is worth 100 points, consists of 24 questions. Each question is worth either 3 points or 5 points. If x is
    11·2 answers
  • Xian and his cousin Kai both collect stamps. Xian has 56 stamps, and Kai has 80 stamps. The boys recently joined different stamp
    7·1 answer
  • Stacey filled her 1/2 measuring cup seven times to have enough flour for a cake recipe.How much flour does the cake recipe call
    14·1 answer
  • The lifetime of a certain type of battery is normally distributed with mean value 11 hours and standard deviation 1 hour. There
    8·1 answer
  • The formula for the distance traveled over time ttt and at an average speed vvv is v\cdot tv⋅tv, dot, t. Amit ran for 404040 min
    15·1 answer
  • Jalil and Victoria are each asked to solve the equation ax – c = bx + d for x. Jalil says it is not possible to isolate x becaus
    7·2 answers
  • If a histogram of a sample of​ men's ages is​ skewed, what do you expect to see in the normal quantile​ plot?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!