Answer:
7 hours 30min
Step-by-step explanation:
Step one :
Given data
We are told that Erica can paint 1 room in 5hours
Her work rate is 1/5 room per hour
And also with the assistance of her friend they can paint 1 room in 3 hours
Hence their combined work rate is 1/3 room per hour
Step two
The combined work expression is
1/A+1/B=1/T
Where A=Erica's work rate
B=Rachael's work rate
T=combined work
1/5+1/B=1/3
1/B=1/3-1/5
1/B=5-3/15
1/B=2/15
B=15/2
B=7.5 hours
It will take Rachel 7 hours 30min to paint the room
Huilan's age is two times Thomas's age. The sum of their ages is 18. What is Thomas's age?
Answer:
Huilan is 12 and Thomas is 6
Step-by-step explanation:
Answer:
thomas is 6 years old
Step-by-step explanation:
if he is 6. 6x2=12 +6 =18
Which of the following coordinates is located in Quadrant IV
Answer:
Is there a picture?
Step-by-step explanation:
Answer: where is the picture
Step-by-step explanation:
but the 4th Quadrant is all the way to the right bottom
For what value of the variable is each of the following fractions equal to zero: 2y +3/10
I think its 3/10=0.3
2×(-0.15)= -0.3
and -0.3+0.3=so variable value is -0.15
Answer:
2×-1,5+3
Step-by-step explanation:
Hope this helped have an amazing day!
What is the least positive integer divisible by each of 1, 3, 5, and 7?
Answer:
105
Step-by-step explanation:
You need the least common multiple of the 4 numbers. Since 3, 5, and 7 are prime numbers, the answer is their product.
LCM = 3 * 5 * 7 = 105
The least positive integer that is divisible by each of 1, 3, 5, and 7 is 105.
In order to solve the question, we simply have to find the lowest common multiple that is applicable to all the numbers that are given on the question.
In this case, the lowest common multiple can be gotten by multiplying the numbers be high will be:
= 1 × 3 × 5 × 7 = 105
Therefore, the number is 105.
Read related link on:
https://brainly.com/question/20125628
Francis used the distributive property of multiplication to help him solve the equation 6 x 2 = ________. Francis did not get the same answer for each side of the expression. Explain the steps required to correct his mistake. 6 x 2 = (3 x 2) + (4 x 2) 12 = 6 + 8 12 = 14
Solution :
The distributive property of multiplication :
It is given that we have to find the solution for the below expression using the distributive property of multiplication,
So 6 x 2 = __________
Using distributive property, we can write :
⇒ 6 x 2 = 12
⇒ (3 + 3) x (2 ) = 12
⇒ (3 x 2) + (3 x 2) = 12
⇒ 6 + 6 = 12
⇒ 12 = 12
Help me plz!!!!!!!!!!!!!!!!!!
Answer:
17.3 repeating
Step-by-step explanation:
let me know if you need the steps
Answer:
52/3 or 17 whole number 1/3
Use the distributive property to remove the parentheses. -5(-6y - 3w + 2)
Answer:
−5(−6y−3w+2)
=(−5)(−6y+−3w+2)
=(−5)(−6y)+(−5)(−3w)+(−5)(2)
=30y+15w−10
=15w+30y−10
modeled by the expression –2 • 4.
Answer:
-8
Step-by-step explanation:
3=2-b solve this question please
Answer:
b=1
Step-by-step explanation:
Subtract 2 from both sides
b=1
Answer:
Step-by-step explanation:
3 = 2 - b
B + 3 = 2
b = 2 - 3 = - 1
2 increased by 8 times a number is equal to 5. Write an equation or inequality.
7 divided by 5 over 8
Answer:
Step-by-step explanation:
7÷ 5/8 change to multiplication and flip the fraction
7*8/5 place 7 over 1
7/1*8/5 multiply
56/5 or 11 1/5
I need help with this question! Will mark brainliest :)
Answer:
hiii
your answer is option d
HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.INanswer: y= 20x+30
Step-by-step explanation:
it says they charge 20$ per hour and x is the amount of hours.
30$ is charged as the registration fee at the beginning only.
Please help if possible due really soon❤️❤️❤️ thank you so much
Answer:
i do believe they are right, i got b too.
Step-by-step explanation:
Which functions are vertical stretches of the square root function? Check all that apply.
Answer: 6/5 root x
explanation: A vertical stretch happens when you’re multiplying by a number GREATER THAN 1 on the outside of the root. 6/5 root x is the only answer choice that meets this.
Answer:
B, D & E -[tex]\sqrt{x} 16X[/tex], 3/8√9x, 6/5√x
Six calculators cost 180 determine the cost per calculator
Each calculator would cost 30 dollars (sorry if this isn't what you mean)
If the perimeter of the triangle is 60, what is the value of y?
Answer:
y = 5Step-by-step explanation:
Given:
In the right triangle the hypotenuse is 5y, one leg is 4y, the other leg is missingMissing side of the triangle is:
√(5y)² - (4y)² = √(3y)² =3yPerimeter is 60:
3y + 4y + 5y = 6012y = 60y = 60/12y = 5Gavin bakes 70 cookies in an hour.How many cookies can he bake in 4hours
Answer: 280 cookies
Step-by-step explanation:
Please help me I can’t seem to figure this out
7.01 x 0.356
Answer:
2.49556
Step-by-step explanation:
Answer:
2.49556
Step-by-step explanation:
0.356
× 7.01
---------
2.49556
A plumber charges a one-time fee of $75 plus a fixed hourly rate, h, in dollars. The plumber works at a customer's house for 2 hours and charges a total of $205.
What is the fixed hourly rate, in dollars, that the plumber charges?
Answer:
$65
Step-by-step explanation:
$205 - $75 = $130
$130 / 2 hours = $65
The hourly rate, in dollars, is $65 per hour.
what is the slope of the linear function
y=1/2 x + 4
Is it
1/2
-4
4
-1/2
Answer: 1/2
Step-by-step explanation:
the formula for a line is y = mx + b
m is the slope. so in the line y = 1/2x + b
1/2 is our m and therefore that’s the slope
please answer i will give you brainiest!!!!!!!!!!!!!!!!!!
Answer:
I'm pretty sure it's A because its showing that the line starts from 1 and goes up if that makes sense.
Answer:
B
Step-by-step explanation:
x < 1 means that x is lesser than 1. A shows x is more than 1 so it is wrong. C shows x is more than -1 which is not entirely true since x could be more than -1, but not less than 1. However, the line in C stretches all the way to 8 which is more than 1 so it is wrong. D shows that x is lesser than -1, but x could have been 0 or -1, so it is not true either.
I have a question! I have honors math where’s somewhere I could go get help? Please help I’m 30 hours behind and it needs to be done by Saturday!!! PLEASE HELP!! ⚠️⚠️ I’m beginning you all!!!:(((
BTW ITS 9th grade
Answer:
what are the questions pearl ? you have to ask the questions :D
Step-by-step explanation:
Solve this equation for x by graphing.
-4x - 1 = 5^x + 4
Please help! Asap
Answer:
-1.28
Step-by-step explanation:
You would put these two equations into a graphing ccalculator:
y = -4x - 1
and
y= 5^x + 4
Wherver they intersect is your answer.
These two happen to intersect at (-1.28,4.13)
Since the equation has x-values, you would give the first number (x-coordinate) as your answer.
A car dealership increase the price of a single by 6% original price was $37,800 what is the price
Answer:
$40,068
Step-by-step explanation:
37,800 x 0.06 = 2,268
37,800 + 2,268 = 40,068
plsss I need help..i will remark ur answer as a brilliant answer
Answer:
9.3. your ans. nabsbss
Choose the correct answer to 96 divided by 6
1. 15 R6
2. 17
3. 16
4. 15
^
^
^
question
Answer:
correct answer is 16. hope that helps
John runs the same amount each day (r). If he runs for 4 days this week write an expression to represent the amount he ran this week.
Answer:
[tex]r \cdot 4 = z[/tex]
Step-by-step explanation:
An expression means that we don't know enough to create an equation. So, this means we will mostly be using variables.
John runs r amount every day. We need to create an expression for if he runs r amount for 4 days.
[tex]r \cdot 4 = z[/tex]
r = how much he runs per day
4 = how many days he runs
z = how much he runs this week
This is your expression!
Answer:
r * 4 = a
Step-by-step explanation:
If John runs the same amount everyday (r) for the past four days, we can multiply 4 by r
r * 4
We don't have enough information to write the answer to the expression so in its place we can put a variable. (In this case, I chose a)
r * 4 = a
So a possible expression for this problem is r *4 = a
Hope this helps! Have a great day! :)
Solve the system of inequalities graphically. Which point is in the solution?
y2x-4
y S-2x - 8
Answer:
(d). ( - 4, 0 )
Step-by-step explanation:
(a). ( 5 , - 2 ) --- Coordinates do not satisfy both inequality.
(b). ( - 2 , - 8 ) --- Coordinates satisfy y ≤ - 2x - 8, but do not satisfy y ≥ x - 4 .
(c). ( 0 , 0 ) --- Coordinates satisfy y ≥ x - 4, but do not satisfy y ≤ - 2x - 8 .
(d). ( - 4, 0 ) --- The solution of the task.
At the end of a snow storm, Audrey saw there was a lot of snow on her front lawn. The temperature increased and the snow began to melt at a steady rate. There was a depth of 10 inches of snow on the lawn when the storm ended and then it started melting at a rate of 2 inches per hour. Write an equation for S, in terms of t, representing the depth of snow on Audreys lawn, in inches, t hours after the snow stopped falling.
The expression for S, expressed in terms of t, which represents the amount of snow on Audrey's lawn, is as follows:
S = 0 - 2t
When the storm first began, there were 10 inches of snow in Audrey's yard. This can be shown as a constant value.
2 inches of snow melt each hour when it first starts to melt. We deduct 2t from the initial depth of snow since it gets shallower with time. Here, t denotes the number of hours that have passed since the snow ceased falling.
Determine the depth of the snow on Audrey's lawn at various times by changing the value of t in the equation.
For example, if we substitute t = 1 into the equation,
S = 10 - 2(1) = 10 - 2 = 8
This indicates that 8 inches of snow would be present in Audrey's yard once the snow stopped falling in one hour. To get the depth at various times, you may similarly insert different values for t.
To know more about an equation follow
https://brainly.com/question/18262424
#SPJ12
Order the numbers from least to greatest:
9/10 1/6 7/5
Answer:
1/6, 9/10, 7/5
Step-by-step explanation: