Answer:
3.9375 hours
Step-by-step explanation:
Working alone it takes mark 7 hours to mop the whole house it takes sue 9 determine to the nearest hundredth of the hour how long it will take then to mop the house together
This is calculated as
1/Time it would take them to work together = 1/ Number of hours Mark mopped + 1/ Number of hours Sue mopped
= 1/T = 1/7 + 1/9
Lowest common denominator = 63
1/T = 9 + 7/63
1/T = 16/63
T = 63/16
T = 3.9375 hours
rewrite the question in slope-intercept form:
2x-4y-12= -13-2x
Answer:
y= x + 1/4
Step-by-step explanation:
did the math and that should be your answer
Find the equivalent of 2x^2 + (4x -6x^2) + 9 - (6x + 3)
A. -4x^2 - 2x +12
B.-4x^2 -2x + 6
C.-10x +6
D. 18x +12
Answer:
B.-4x^2-2x+6.
Step-by-step explanation:
=2x^2+4x-6x^2+9-6x-3.
=2x^2-6x^2+4x-6x+9-3.
=-4x^2-2x+6.
A rectangle has sides that are 1 cm and 2 cm long. If it is increased by a scale factor of 9, what will be the new area of the rectangle?
Answer:
[tex]162cm^2[/tex]
Step-by-step explanation:
The original sides are 1 and 2 centimeters, Increasing both by a factor of 9 results in 9 and 18 centimeters. We multiple to find the area is 162 square centimeters,
if f(x)=81, what is x?
Answer:
There's not enough information...
Answer: x=0 because there is no solution that's what I got
Step-by-step explanation:
A sphere has a radius 2.7 centimeters, What is its volume to the nearest cubic centimeter
Answer:
82.447957600811
Step-by-step explanation:
Three friends went to lunch and ordered the special. They had a coupon of $10 off the bill and they spent $35 in all. Write an equation to represent this situation.
Answer:
35-10/3
Step-by-step explanation:
SIMPLE > Simplify. 4√27 + 6√75 Enter your answer, in simplest radical form...
Answer:
42√3
Step-by-step explanation:
4√27 = 4√(9)(3) = 12√3
6√75 = 6√(25)(3) = 30√3
12√3 + 30√3 = 42√3
Andrew bought 24 carpet tiles and 3 tins of paint.
The total cost was £100.20. Each tin of paint cost £13.16.
Find the cost of one carpet tile.
Answer:
Cost of one carpet tile = (Total cost-3*tin of paint cost)/24
=(100.20-3*13.16)/24=2.53
Hope this helps <3
Answer: £2.53
13.16 x 3 = 39.48
100.20 / 39.48 = 2.53
I need h3lpppppppppppppppppppppppppppppppppp
If x = 3 units, y = 6 units, and h = 5 units, find the area of the parallelogram shown above using decomposition.
Answer:
12 square units
Step-by-step explanation:
Hope it helps
Which is closest to the volume of the rectangular solid below?
6.98 feet
4.12 feet
3.78 feet
What is the area?
-QUICKKKKKK
Answer:
34 sq cm
Step-by-step explanation:
4x4 = 16
9x2 = 18
16+18= 34
Solve the equation
x - 10 = 4
Answer:
x - 10 = 4
x - 10 + 10 = 4 + 10
x = 14
Answer:
x= 14
Step-by-step explanation:
x-10=4
x=4+10
x=14
Which equation represents the line that passes through the point (-3, 2) and has a slope of 2?
O y = 2x + 1
O
y = 2x - 4
O y = 2x - 7
y = 2x + 8
Answer:
y = 2x + 8
Step-by-step explanation:
To find the line, use the equation y = mx + b.
Plug in the slope and given point, then solve for b:
y = mx + b
2 = 2(-3) + b
2 = -6 + b
8 = b
Plug in the slope and b into the equation:
y = 2x + 8
So, the equation of the line is y = 2x + 8
Answer:
m
Step-by-step explanation:
PLEASE HELP!!!!
If u give me the answer I will post another question for u worth ALOT of points just so rn I don't get scammed :(
How would you write the rules for solving fraction expressions?
A)- Addition
B)- Subtraction
C)- Multiplication
D)- Division
Answer:
multiplication
Step-by-step explanation:
Evaluate the expression 2bc2 for b = 1.5 and c = 5
Answer:15
Step-by-step explanation:
The value of the given expression 2bc² for b = 1.5 and c = 5 will be 75.
What is an expression?A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
A statement expressing the equality of two mathematical expressions is known as an equation.
As per the given expression,2bc²
Put b = 1.5 and c = 5,
2(1.5)(5)² = 3 x 25 = 75
Hence "The value of the given expression 2bc² for b = 1.5 and c = 5 will be 75".
To learn more about expression,
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This table gives the value of an investment for the first 5 years after the initial investment was made. The data can be modeled using an exponential function.
Years 1 2 3 4 5
Investment value $1,050 $1,103 $1,160 $1,215 $1,280
Based on the data, which amount is closest to the value of the investment 10 years after the initial investment?
$1,350
$1,475
$1,625
$1,800
Answer:
C.) $1,625
Step-by-step explanation:
Going by the numbers on the graph, you can immediately tell $1,350 and $1,475 are way too low, so cancel those out and you get $1,625 and $1,800
From here, you can see that in 5 years it hasn't gone up by far, so it won't be 1,800$ by 10 years end, making the answer clear
You can just double 280 and get 560, which the closest answer is 1,625
It's really just a high-low estimate question, 2 answers are too high or low, one is close but not really, and one is just right- or inbetween
$1,625
The amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.
What is an exponential function?It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent [tex]\rm y = a^x[/tex]
where a is a constant and a>1
Let's suppose the exponential function that model the problem is:
[tex]\rm y = ae^k^x[/tex]
Plug x = 1 and y = 1050
[tex]\rm 1050 = ae^k[/tex] ...(1)
Plug x = 2 and y = 1103
[tex]\rm 1103 = ae^2^k[/tex] ...(2)
Divide equation (2) with (1)
[tex]\rm e^k = 1.0504[/tex]
Taking ln to get the value of k
k = 0.0491
a = 999.69
The exponential function:
[tex]\rm y = (999.6902)e^{0.0491}^x[/tex]
Plug x = 10 years in the above function:
y = $1633.44
Which is close to $1625
Thus, the amount $1625 is closest to the value of the investment 10 years after the initial investment option third is correct.
Learn more about the exponential function here:
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A boat is traveling at 43.2 m/s. It then goes down a faster part of the river and is now going 144
m/s which gave the boat an acceleration of 25.2 m/s2. How long did it take the boat to reach its
new speed?
Answer:
Step-by-step explanation:
boat was at 43.2 m/s speed increase to 144 m/s
if the boat was moving 0 m/s and increased to 144 m/s - 43.2 m/s accelerating at 25.2 m/s², it would take the same amount of time
25.2 m/s² × x seconds = (144 - 43.2) m/s solve for x in seconds
x seconds = 100.8 m/s / 25.2 m/s²
x seconds = 4 (m/s /ms²) = 4 (m/s × s²/m) = 4 seconds the units match
x = 4 seconds
Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!! HELP !!!!!!!
25 increased to 32..........
Which descriptions from the list below accurately describe the relationship
between AQRS and ATUV? Check all that apply.
Similar
Same Shape
They are Congruent and are Similar!
The descriptions that accurately describe the relationship between AQRS and ATUV is they are similar and congruent. The correct options are B and C.
What are congruent angles?Angles with the same measure are said to be congruent. In other words, two angles are congruent if they open to the same degree.
Two angles of 60 degrees, for example, are congruent because they have the same measure.
Similar angles are those that have the same shape but differ in size. In other words, two angles are similar if they are scaled by the same factor and have the same degree of opening.
Two angles of 60 degrees, for example, are similar because they have the same shape; however, if one of the angles is scaled to be twice as large as the other, they remain similar angles.
Thus, as per the given image, the correct options are B and C.
For more details regarding angles, visit:
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In your math notebook: Give an approximation of the width of the river, support your answer with reasoning from the measurements given. Set up an equation and solve for the width of the Klamath River. Enter the width of the river.
TwT plz help
Answer:
um i cant read it and why do you use cringet emojis like TwT
Step-by-step explanation:
Answer:
ehbsbshshwhajwj
Step-by-step explanation:
whhwbwbsbsbbsh
Kimberley plans to purchase a new laptop computer that costs $1,313.00. She has one coupon for 15% off and another coupon for $200 off. Which coupon should she use to get the bigger discount?
Answer:
Coupon second discount = 200 off
Step-by-step explanation:
Given:
Price of laptop = $1,313
Coupon first discount = 15% off
Coupon second discount = 200 off
Find:
Choose coupon get the bigger discount
Computation:
Coupon first discount = 15% off
Coupon first discount = 1,313 x 15%
Coupon first discount = $196.95
So,
Coupon second, for get the bigger discount
A rectangle has four sides so we double each side and add them to each other:
2(2x+7)+2(3x+8y)
=4x+14+6x+16y
=10x+16y+14
What's the equation for this Answer??
Answer: this many 4
Step-by-step explanation:
2(2x+7)+2(3x+8y)
=4x+14+6x+16y
=10x+16y+14
In The Figure Below, M/A=41 And M/B= (2x+3)
Answer:
Step-by-step explanation:
Plzzz someone help me with this problem I’m at a 69 I really want to get to 70!!!
Answer:
The answer is in the picture I attached.
Step-by-step explanation:
Also, if you need this:
Slope: 1
Y Intercept: (0,6)
Hope this helped!
guys pls help me with this
Answer:
3.since two base side are equal
4.sum of interior angle of the triangle is 180
9.base angle of isosceles triangle
16.the inscribed angle from the diameter is 90°
21.being CAE=90°
Which point shows 1/8
Answer:
where the photo
Step-by-step explanation:
Solve please. Correctly
4x + 2 = 2 + 4x
Answer:
x = anything for both sides as long as they're the same number
Step-by-step explanation:
the answer is 56 good luck
Calculate the angles of a parallelogram if the sum of the three angles is 310°
9514 1404 393
Answer:
adjacent angles are 50° and 130°
Step-by-step explanation:
The sum of all 4 angles in a parallelogram is 360°, so the fourth angle must be ...
360° -310° = 50°
Adjacent angles are supplementary, so the other two angles must be ...
180° -50° = 130°
The angles in the parallelogram are either 50° or 130°. Adjacent angles are different.