Jayden's work rate is twice Chandra's work rate, and, the rooms cleaned
by Jayden is twice the number of rooms cleaned by Chandra.
Response:
Jayden cleans 8 rooms while Chandra cleans 4 roomsWhich method can be used to find the number of rooms cleaned by Jayden and Chandra?Number of rooms in the house = 12
The time that Jayden takes to clean the house = 6 hours
Time that it takes Chandra to clean the house by herself = 12 hours
Time it takes both of them to clean the house = 4 hours
Required:
The number of rooms that Jayden clean and the number of rooms that
Chandra cleans when they work together.
Solution:
Given that the time it takes Jayden to clean the house is half the time
taken by Chandra.
Therefore;
The number of rooms Jayden cleans in 4 hours is twice the number of rooms cleaned by Chandra, which gives;
Ratio of the number of rooms cleaned by Jayden to the number cleaned by Chandra is 2 : 1
Total number of rooms cleaned = 12
[tex]Number \ of \ rooms \ cleaned \ by \ Jayden = \dfrac{2}{2 + 1} \times 12 = \underline{8 \ rooms}[/tex]
The number of rooms cleaned by Chandra = 12 - 8 = 4 rooms
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solve: 2x + 5y = -1
3x + 2y = 4
Answer:
x = 2, y = -1
(x,y) = > (2,-1)
Step-by-step explanation:
2x + 5y = -1
3x + 2y = 4
-3(2x + 5y = -1) = > -6x - 15y = 3
2(3x + 2y = 4) = > 6x + 4y = 8
-6x - 15y = 3
6x + 4y = 8
-11y = 11
/-11 /-11
y = -1
2x + 5y = -1
2x + 5(-1) = -1
2x -5 = -1
+5 +5
2x = 4
/2 /2
x = 2
(x,y) = > (2,-1)
Hope this helps!
Can u answer this for me please step by step I'm desperate
-| -40 |
Answer:
- 40
Step-by-step explanation:
The absolute value always returns a positive value , that is
- | - 40 | = - | 40 | = - 40
PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!!
WHAT IS THE VALUE OF X?
Answer:
x = 20
Step-by-step explanation:
180 - 45 = 5x + 35
180 - 45 = 135
5x + 35 = 135
5x + 35 - 35 = 135 - 35
5x = 100
5x/5 = 100/5
x = 20
Answer:
x=20
Step-by-step explantion:
180-45=135
we have,
135=5x+35
135-35=5x
100=5x
100/5=x
20=x
Please answer quickly.
Answer:
"In addition"
Step-by-step explanation:
"In addition" is redundant because of what's said before it. "but some people also add lemon juice" is a way stronger sentence overall.
Solve B) simultaneously please
Answer: .....
Ok done. Thank to me :>
somebody please help RN. thank you.
Answer: D
Step-by-step explanation:
To add credibility to your response
Impersonaters and scammers usually don't have things like phone numbers and personal links, they can increase your credibility
Solve system of equations:
-9x - 8y = 14
10x + 4y = 4
PLEASE HELP
The table shows the area of circles with a radius of 1 through 3 feet.
Recall that pi has a vale of about 3. Write an equation in two variables
To represent the relation in the table.
At a grocery store, 7 apples and 2 oranges will cost $12.80. In addition, 6 apples and 3
oranges cost $12.00. Assuming that we are talking about the same apples and oranges, what is the
cost of 1 apple? What is the cost of 1 orange? Let x represent the cost of an apple
and y represent the cost of an orange. Show ALL work!
Equation #1:
Equation #2:
Cost of 1 apple: $
Cost of 1 orange: $
Answer:
Equation 1: 7x + 2y = 12.8
Equation 2: 6x + 3y = 12
Cost of 1 apple: $1.60
Cost of 1 orange: $0.80
Cost of 1 orange: $Step-by-step explanation:
Let's use the elimination method to solve this
Multiply equation 1 by 3
(7x + 2y = 12.8) x 3 = 21x + 6y = 38.4
Multiply equation 2 by -2
(6x + 3y = 12) x -2 = -12x - 6y = -24
The x terms will cancel each other out
21x + 6y = 38.4
-12x - 6y = -24
9x = 14.4
Divide by sides by 9 to isolate the x variable
9x/9 = 14.4/9
x = 1.6
This means an apple costs $1.60
Plug the new x into one of the original equations to find y; we'll use equation 1
7(1.6) + 2y = 12.8
11.2 + 2y = 12.8
Subtract 11.2 from both sides
11.2 + 2y = 12.8
- 11.2 - 11.2
2y = 1.6
Divide both sides by 2
2y/2 = 1.6/2
y = 0.8
This means an orange costs $0.80
Answer the questions about the following polynomial.
-x+1/7
The expression represents a_______
polynomial with ____
terms. The constant
term is ______
the leading term is _____
and the leading coefficient is _____
Answer:
1) Linear
2) Two (2 Terms means it is a Binomial)
3) 1/7
4) -x
5) -1 (-x = -1x)
2.6 m wide. What's the area of a
single panel?
Answer: Area = l × w
= 1 × 2.6
= 2.6 feet2
Step-by-step explanation:
Edward deposited $5,000 into a savings account 3 years ago. The simple interest rate is 4%. How
much money did Edward earn in interest?
Answer:
si = prt/100
so si = 5000x3x4/100
si = 50x3x4
which is 600
so he earned 600$ in interest
14. Find the distance between points P(3, 2) and Q(3, 8) to the nearest tenth.
Answer: 6
Step-by-step explanation:
Find the value of f(-7).
y =f(x)
PLEASE HELP DUE TODAY I'LL GIVE YOU 20 PTS AND POSSIBLY THE BRAINLIEST THING.
Which of the following demonstrates the Commutative Property of Multiplication?
5(2a − 3) = 10a − 15
10a − 15 = (2a − 3) ⋅ 5
5(2a − 3) = (2a − 3) ⋅ 5
(5 ⋅ 2a) − 3 = 5(2a − 3)
Answer:
C
Step-by-step explanation:
Because the Commutative Property means: Changing the order of factors does not change the product.
Therefore, the answer is C; 5(2a-3)=(2a-3)x5.
Hope this helps you!
Answer:
here you go so you mark that person the brainliest
Step-by-step explanation:
whats the answer for this one???? urgently need correct answers
Answer:
Refer to the attachmentIn a city, 49% of the adults are male. Of the adults, 24% are male and rent action-movie DVDs and 10% are female and rent action-movie DVDs.
If an adult is randomly picked, the probability that the person rents action-movie DVDs, given that the person is female, is
.
Answer:
I getting the probability of the adult female that will rent the action movies in DVDs in by dividing the possible probability outcome which is 10% of all adults by the total number of possible outcome. So all of the population of the female is 51% and the ones who rent is only 10%. the probability is 19%
The solution is, 0.20 is the probability that the person rents action-movie DVDs, given that the person is female.
What is probability?Probability can be defined as the ratio of the number of favorable outcomes to the total number of outcomes of an event.
here, we have,
given that,
Data:
A: the adult is a male, P(A) = 0.49
B: the adult rent action-movie DVDs
C: the adult is a female, P(C) = 1 - P(A) = 1 - 0.49 = 0.51
24% of the adults are male and rent action-movie DVDs, then P(A ∩ B) = 0.24
10% of the adults are female and rent action-movie DVDs, then P(C ∩ B) = 0.10
The conditional probability of B (the adult rents action-movie DVDs) given C (the adult is female) is computed as follows:
P(B|C) = P(C ∩ B)/P(C)
= 0.1/0.51
= 0.2
Hence, The solution is, 0.20 is the probability that the person rents action-movie DVDs, given that the person is female.
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please help me!!!!!!
Answer:
sorry i can see it its blured
Maura wants to buy fencing to install around a square garden in her yard. the perimeter of the garden can be represented by the equation p = 4√a where a is the area of the garden.
Examine the graph that represents this situation.
Examine the graph that represents this situation.
The graph appears to begin at (0,0).
Is (0,0) a valid point in terms of the context of the situation? Why or why not?
Select the option that correctly answers both questions.
A) The point is valid in terms of the context because when Maura buys 0 feet of fence, the perimeter of the garden is 0 feet.
B) The point is not valid in terms of the context because the garden can't have an area of 0 square feet.
C) The point is valid in terms of the context because it represents the smallest garden Maura can have as well as the amount of fence she must buy.
D) The point is valid in terms of the context because it shows that the area and perimeter start at 0.
The correct option regarding the point (0,0) is the context of this function is given by:
D) The point is valid in terms of the context because it shows that the area and perimeter start at 0.
What is the function?The perimeter of a garden of area a is given by:
[tex]p = 4\sqrt{a}[/tex]
If there is no garden, that is, the area is 0, the perimeter is also 0, hence point (0,0) is valid, which means that option D is correct.
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Draw a line to match each word with its definition
Thx ! ♡☆
Answer:
1. C
2. E
3. D
4. B
5. A
Hope This Helps!!!
Answer:
4 -2,3 -4,2 -5,5 -1,1 -3
I hope this helps you
What is the area of this trapezoid?
Answer:
Area of trapezoid = 19.84 in^2
Step-by-step explanation:
Area of trapezoid = (b1+b2)/2 * Height
to find the height we have to use the Pythagorean formula for the left triangle
[tex]X^2 + Y^2 = Hypotenuse^2[/tex]
we sub the values in the formula
[tex]3^2 = Y^2 + 4^2[/tex]
Y = [tex]\sqrt{7}[/tex] which the height of the triangle
now we sub the values in the trapezoid formula
Area of trapezoid = (5+10)/2 * sqrt{7}
Area of trapezoid = 19.84 in^2
So grateful if you help
Answer:
Question 3
a) 7/6 = 1 1/6
b) 8/3 = 2 2/3
c) 7/2 = 3 1/2
d) 3/2 = 1 1/2
e) 17/6 = 2 5/6
f) 10/3 = 3 1/3
Question 4
a) 4 x 8 = 32
b) 27/8 = 3 3/8
c) (32-27)/8 = 5/8
Step-by-step explanation:
Question 3
a) 7/6 = 1 1/6
b) 8/3 = 2 2/3
c) 7/2 = 3 1/2
d) 3/2 = 1 1/2
e) 17/6 = 2 5/6
f) 10/3 = 3 1/3
Question 4
a) 4 x 8 = 32
b) 27/8 = 3 3/8
c) (32-27)/8 = 5/8
Part-a) 7/6:
=> 1/6 + 6/6=> 1/6 + 1 = 1 1/6Part-b) 8/3:
=> 2/3 + 3/3 + 3/3=> 2/3 + 1 + 1=> 2/3 + 2=> 2 2/3Part-c) 7/2:
=> 1/2 + 2/2 + 2/2 + 2/2=> 1/2 + 1 + 1 + 1 => 1/2 + 3=> 3 1/2Part-d) 3/2:
=> 1/2 + 2/2=> 1/2 + 1=> 1 1/2Part-e) 17/6:
=> 5/6 + 6/6 + 6/6=> 5/6 + 1 + 1=> 5/6 + 2=> 2 5/6Part-f) 10/3:
=> 1/3 + 3/3 + 3/3 + 3/3=> 1/3 + 1 + 1 + 1=> 1/3 + 3=> 3 1/3Solution (Question 4):Note that:
1 pizza = 8 slicesTotal pizzas ordered: 4 pizzasPart-a) How many slices of pizzas were there altogether?
Use the equation (1 pizza = 8 slices) to find out how many slices were there.
=> 1 pizza = 8 slices=> 4 pizzas = 8 x 4 slices=> 4 pizzas = 32 slices32 slices of pizza were in total.
Part-b) How many pizzas were eaten? Express your answer as a mixed number.
Divide 27 by 8 to find out how many pizzas were eaten.
27/8 = 3 3/8 pizza3 3/8 of pizza were eaten.
Part-c) How many pizzas were left over? Express your answer as a fraction.
Subtract the pizza eaten from the pizza ordered to find out how many pizzas were left.
4 - 3 3/8=> 4 - 27/8=> 32/8 - 27/8=> 5/85/8 of pizza were left over.
Is the expression a polynomial? If so, is it a monomial, binomial or
trinomial? 8x - 2y
Answer:
8x2y is a monomial.
Step-by-step explanation:
Raul works at a movie theatre. The function f(x) represents the amount of money Raul earns per ticket, where x is the number of tickets he sells. The function g(x) represents the number of tickets Raul sells per hour, where x is the number of hours he works. Show all work to find f(g(x))
Answer:
Step-by-step explanation:
Function f(g(x)) is the amount of money Raul earns per ticket sold.
here are the steps to find f(g(x)):
Define the functions f(x) and g(x).
f(x) = amount of money Raul earns per ticket
g(x) = number of tickets Raul sells per hour
Substitute g(x) for x in the function f(x).
f(g(x)) = amount of money Raul earns per ticket * number of tickets Raul sells per hour
Simplify the expression.
f(g(x)) = amount of money Raul earns per ticket * number of tickets Raul sells per hour
= amount of money Raul earns per ticket sold
Therefore, f(g(x)) is the amount of money Raul earns per ticket sold.
Here is an example:
Let's say f(x) = $10 and g(x) = 2 tickets/hour. If Raul works for 1 hour, he will sell 2 tickets and earn $20.
f(g(x)) = f(2) = $10 * 2 = $20
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Help me with geometry please
SAS
=========================================
Explanation:
SAS = side angle side
One pair of congruent sides is AC = CE (single tickmark). That takes care of one "S" of "SAS".
The other pair of congruent sides is BC = CD (double tickmark). This takes care of the other "S" of "SAS". The order of the "S" terms doesn't matter as long as the angles are between those sides.
The congruent pair of angles is angle ACB = angle ECD. Vertical angles are always congruent. Since we have a pair of congruent angles, this takes care of the "A" of "SAS". The angles are between the sides mentioned in the previous paragraphs.
A truck, moving continuously, averages 55.5 mph for 6.75 hr. How far does it travel during this time?
Answer:
Distance = speed * time
You are given both the speed and the time so you can find the distance
speed = 56 miles/hr
time = 3 hrs 45 minutes = 3.75 hrs
distance = 56 * 3.75
distance = 210 miles
Step-by-step explanation:
―6 + (4 + 4)2 ÷ 2
This is my problem I need help with
Answer:
2
Step-by-step explanation:
you do the (* first so it 8 then you add it with -6 which decreases it that makes 2 and 2 divided by 2 is one so add all together and get 2
The first three steps for solving the quadratic equation by completing the square are shown. Fill in the missing number in the last step. 9x2 54x = 7 9(x2 6x) = 7 9(x2 6x 9) = 7.
The first three steps for solving the quadratic equation by completing the square are as follows;
1. [tex]\rm 9x^2 +54x = 7[/tex]
2. [tex]\rm 9(x^2 + 6x) = 7[/tex]
3. [tex]\rm 9(x^2 + 6x + 9) = 7 + 81[/tex]
Given
The quadratic equation given as 9x^2 + 54x = 7.
Quadratic equation;The highest power of the degree is 2 is known as a quadratic equation.
To solve using the completing the square method.
The first three steps for solving the quadratic equation by completing the square are given below.
1. Write the equation in a way that the constants are on the right side while the terms with x are on the left.
[tex]\rm 9x^2 +54x = 7[/tex]
2. Make sure that the coefficient of the x^2 term is 1.
[tex]\rm 9(x^2 + 6x) = 7[/tex]
3. Adding a term to both sides that will complete the square on the left side.
This is done by dividing the coefficient of the x term by 2 and squaring it.
The same amount should be added to the right side to balance the equation.
[tex]\rm 9(x^2 + 6x + 9) = 7 + 81[/tex]
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What is the answer I’ve been stuck on this for way too long
[tex]\text{Let's write it like}\\x+y=8\\+\:\:\:+\\z-x=6\\\downarrow\:\:\:\:\:\:\downarrow\\13\:\:\:\:8\\=>\\\displaystyle\\\left \{ {{x+z=13} \atop {z-x=6}} \right. \\\left \{ {{x+z=13} \atop {z=6+x}} \right. \\\downarrow\\x+x+6=16\\2x=7\\x=3,5=>z=9,5\\\text{Now we need to find y}\\3,5+y=8\\y=4,5\\\\\text{so we have}\\3,5+4,5=8\\+\:\:\:\:\:\:\:\:\:+\\9,5-3,5=6\\\downarrow\:\:\:\:\:\:\:\:\:\:\:\:\downarrow\\13\:\:\:\:\:\:\:\:\:\:8\\[/tex]
Please answer quickly ( 70 points)
Answer:
maybe 4 hours
____________
Answer: 4 hours
Step-by-step explanation: 10 for the first hour then 12 x 4=58