Answers
Related Questions
Find the measure of b. PLEASE HELP
Answers
Three students have started a fence-painting business. Working together, Pragnesh and Qazi can paint the fence in 2 hours. Similarly, Pragnesh and Ronghui can paint the fence in 3 hours when they work together. Finally, when Qazi and Ronghui work together, they can paint the fence in 4 hours. How long would it take if all three students worked together to paint the fence
Answers
Answer: 55.4 mins
Step-by-step explanation:
pragnesh and qazi = 2hrs
pragnesh and roghui = 3hrs
qazi and roghui = 4hrs
this means for every 1 hour they wold paint.
pragnesh and qazi = [tex]\frac{1}{2}[/tex] half of the fence
pragnesh and roghui = [tex]\frac{1}{3}[/tex]
qazi and roghui = [tex]\frac{1}{4}[/tex] quarter of the fence
time taken when they all work together
= [tex]\frac{1}{2}[/tex] + [tex]\frac{1}{3}[/tex] + [tex]\frac{1}{4}[/tex]
= [tex]\frac{13}{12}[/tex]
= [tex]\frac{12}{13}[/tex]
= 0.9231 × 60(mins)
= 55.4 mins
Express 8 as a fraction.
Answers
Answer:
8/1
Step-by-step explanation:
You just have to put a one for the denominator for any whole number you want to make a fraction.
Please mark me as brainliest.
A recipe says, "1 part cocoa to 4 parts sugar." How much sugar will you need if you use 20 grams of cocoa?
Answers
Answer:
80
Step-by-step explanation:
1 part of cocoa to 4 parts of sugar means every one part of cocoa is timed by four parts sugar so 20 times four is 80.
A. 5
B. 7
C. 31
D. 11
Answers
Answer:
the answer is five by using the formula for the area of a trapezoid you have to add and subtract like terms...... blah blah blah... at the end you divide both sides by _8 and there u have 5 ur welcome lol
Which of the following is equivalent to x^-1/2
1) -1/2x
2) -√x
3) 1/√x
4) -1/2x
Answers
Answer:
Option (3) is correct.
Step-by-step explanation:
We need to find the expression that is equivalent to [tex]x^{-1/2}[/tex].
The property is : [tex]x^{-a}=\dfrac{1}{x^a}[/tex]
Here, a = 1/2
So,
[tex]x^{-1/2}=\dfrac{1}{x^{1/2}}[/tex]
We know that, [tex]x^{1/2}=\sqrt{x}[/tex]
[tex]\dfrac{1}{x^{1/2}}=\dfrac{1}{\sqrt{x} }[/tex]
So, [tex]x^{-1/2}[/tex] is equivalent to [tex]\dfrac{1}{\sqrt{x} }[/tex]
Hence, the correct option is (3).
Every day of the week Sam's Swim
Shop offers a different deal to its
loyal customers. If the total pricer
Neil paid was $92.30 and it
normally would cost $142.00, what
percent off was the daily deal?
Answers
Answer:
Step-by-step explanation:
Write the equation of the line that passes through the points (-3,-8) and (6,-4).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.
Answers
Answer:
The equation in point-slope form is: [tex]\mathbf{y+8= \frac{4}{9}(x+3)}[/tex]
Step-by-step explanation:
Write the equation of the line that passes through the points (-3,-8) and (6,-4)
The point slope form is: [tex]y-y_1=m(x-x_1)[/tex]
Where m is slope and x₁ and y₁ are the points given
Finding Slope
Slope can be found of given points using formula: [tex]Slope=\frac{y_2-y_1}{x_2-x_1}[/tex]
We have [tex]x_1=-3, y_1=-8, x_2=6 \ and \ y_2=-4[/tex]
Putting values and finding slope
[tex]Slope=\frac{y_2-y_1}{x_2-x_1}\\Slope=\frac{-4-(-8)}{6-(-3)}\\Slope=\frac{-4+8}{6+3}\\Slope=\frac{4}{9}[/tex]
So, slope m = 4/9
Using point (-3,-8) and slope m = 4/9 the equation is:
[tex]y-y_1=m(x-x_1)\\y-(-8)=\frac{4}{9}(x-(-3))\\y+8= \frac{4}{9}(x+3)\\[/tex]
So, the equation in point-slope form is: [tex]\mathbf{y+8= \frac{4}{9}(x+3)}[/tex]
Write the converse. If a figure is a square, then it has four sides.
Answers
Answer:a rectangle?
Step-by-step explanation:
i think its a rectangle because it has four sides
The domain for f(x) and g(x) is the set of all real numbers.
Let f(x) = 3x + 5 and g(x) = x2.
Find f(x) + g(x).
Answers
Answer:
f(x) + g(x) = x^2 + 3x + 5
Step-by-step explanation:
In order to do this, you need to substitute f(x) for 3x +5 and substitute g(x) for x2 (which I'm assuming is x squared, which I will be wrIting as x^2. If this is not the problem, please correct me)
f(x) + g(x) = 3x + 5 + x^2
Now, you need to put the varibles in decreasing order of exponents.
f(x) + g(x) = x^2 + 3x + 5
Answer:
Step-by-step explanation:
The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.
5. An airline ticket to Florida from a certain city costs $249. How much money does
the airline collect if 85 tickets are sold?
Answers
Answer: $21165
Step-by-step explanation:
249 x 85 = 21165
11. A 3000-kg truck moving rightward with a speed of 5 km/hr collides head-on with a 1000-kg car moving leftward with a speed of 10 km/hr. The two vehicles stick together and move with the same velocity after the collision. Determine the post-collision speed of the car and truck.
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Mrs. Milavec had to take out a loan, to pay for Oreos. She borrowed $2,000 at 8% for 2 years. What is the interest Mrs. Milavec will have to pay?
Answers
Answer:
$320.00
Step-by-step explanation:
please help
Answers
At the garden shop, each small tree costs $125 and each large tree costs $275.
How much will 3 small trees and 1 large tree cost?
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To prepare for a bake-off, Travis used 630 grams of flour each day for 3 weeks. How many kilograms did Travis use in those 3 weeks?
Answers
Answer:
hahahahhahahahahahahahahq
what is 4+n/3=2
the slash is a fraction
Answers
Answer:
n = -6
Step-by-step explanation:
4 + [tex]\frac{n}{3}[/tex] = 2
[tex]\frac{n}{3}[/tex] = -2
n = -6
Answer:
n = -6
Step-by-step explanation:
4 + n/3 = 2
subtract 4 from both sides
n/3 = 2 -4
n/3 = -2
multiply both sides by 3
n = 3(-2)
n = -6
The sum of two numbers is 80. The ratio of those two numbers is
3:5. Find the larger number.
Answers
Answer:
the larger number is 50
Step-by-step explanation:
3:5
×10
30:50
30+50=80
Answer:
I think the larger number would be 50
Step-by-step explanation:
I could be wrong but im pretty sure the larger number is 50.
Solve the system using any method.
y=3.50-2
y=-1.9x+4.48
The system has no solution, ().
Answers
Answer:
Did you mean 3.50x? If so, It would be (1.2, 2.2). If you meant just 3.50, it would be (1.56, 1.5)
Hope this helps!
Find the unit rate for number of parts manufactured per hour if 1620 parts are made in 6 hours.
Answers
Answer:
270 parts per hour
Step-by-step explanation:
given
we are told that 1620 parts are manufactured in 6 hours.
Required
Unit rate.
The unit rate in this context is defined as the number of parts that can be manufactured in one hour
Step two:
To find the unit rate, we have to divide the total parts manufactured by the total time taken
unit rate= 1620/6
unit rate= 270 parts per hour
14=14^_
HELPPP!!!!!
Answers
Answer:
0
Step-by-step explanation:
14=14 so plus 0 is 14 i gues
The amount of money raised at a charity
fundraiser varies directly to the number of
attendees. The amount of money raised for five
attendees was $100. How much money will be
raised for 60 attendees?
Answers
9514 1404 393
Answer:
$1200
Step-by-step explanation:
60 attendees is 12 times 5 attendees, so we expect the amount raised to be 12 times $100.
$1200 will be raised for 60 attendees.
Kurtz math class starts at 8:10 AM and lattice for 35 minutes after math class Kurt has recess for 15 minutes what time does recess end
Answers
Answer:
9:10AM
Step-by-step explanation:
Can you give me the right answers please
Answers
Step-by-step explanation:
150 is base pay
5 is pay per shoe
Solve the system by substitution
-x+y=7
x-y=-7
Answers
Answer:
Addition Method To Solve The System Xm Se The Substitution Method To Solve The System Ne Substitution Method To Solve The System 4x + Y = 7 6 Xy 17 ...
Step-by-step explanation:
Help me plz I need lots of help
Answers
Answer:
18x + 16
Step-by-step explanation:
(Not simplest form) 9x + 9x + 8 + 8
To get simplest form, just add the terms and integers together, which in this case would give you 18x + 16.
if a square has an area of 36 units what is its side length
Answers
Answer:
9
Step-by-step explanation:
36/4=9
To find the area you would have to multiply the length times width. Since it’s a square, the length and width would have to be the same length. Therefore, the side length would be 6 since 6x6=36.
Every day of the week Sam's Swim
Shop offers a different deal to its
loyal customers. If the total price
Tina paid was $66.00 and it
normally would cost $88.00, what
percent off was the daily deal?
Answers
Answer:
Step-by-step explanation:
Please help! I’ll do anything I’ll give u brainly!
Answers
Answer:
y>0.5
Step-by-step explanation:
Rearrange the equation so "y" is on the left and everything else on the right.
Plot the "y=" line (make it a solid line for y≤ or y≥, and a dashed line for y< or y>
Shade above the line for a "greater than" (y> or y≥)
or below the line for a "less than" (y< or y≤).
y+x>1
-y -y
x>1-y
2x+y<3
-y -y
2x<3-y
divide by 2
x<1.5-y/2
1.5-y/2>1-y
-1.5+y -1.5+y
y>0.5
Situation:
A 33 gram sample of a substance that's
used to detect explosives has a k-value
of 0.1473.
N = Noe
-kt
No = initial mass (at time t = 0)
N = mass at time t
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in days
Find the substances half life, and days. Round your answer to the nearest 10th
Answers
Answer:
Half life = 4.7 days
Step-by-step explanation:
Formula to get the final amount of the substance after the time 't',
[tex]N_t=N_0e^{-kt}[/tex]
Here, [tex]N_t[/tex] = Final amount of the substance
[tex]N_0[/tex] = Initial amount
k = decay constant
t = Duration or time
Now by substituting the values in the formula,
[tex]N_t=N_0e^{-0.1473t}[/tex]
If [tex]N_t=\frac{1}{2}(N_0)[/tex] [For half life]
[tex]\frac{1}{2}(N_0)=N_0e^{-0.1473t}[/tex]
[tex]\frac{1}{2}=e^{-0.1473t}[/tex]
[tex]2=e^{0.1473t}[/tex]
ln(2) = [tex]\text{ln}(e^{0.1473t})[/tex]
0.69315 = 0.1473t
t = 4.71 days
t ≈ 4.7 days
Therefore, half life of the substance is 4.7 days.
Answer:
4.7
Step-by-step explanation: