Answer:
It should take 3.43 days for the two of them to paint the house if they work together.
Step-by-step explanation:
The together rate is the sum of each separate rate.
In this problem:
Together rate: 1/x
Adam's rate: 1/8
Judy's rate: 1/6.
So
Together rate = Adam's rate + Judy's rate
[tex]\frac{1}{x} = \frac{1}{8} + \frac{1}{6}[/tex]
[tex]\frac{1}{x} = \frac{3 + 4}{24}[/tex]
[tex]\frac{1}{x} = \frac{7}{24}[/tex]
[tex]7x = 24[/tex]
[tex]x = \frac{24}{7}[/tex]
[tex]x = 3.43[/tex]
It should take 3.43 days for the two of them to paint the house if they work together.
The area of a triangle is 36 4/5 units squared and the height of the triangle 9 1/5 what is the length of the triangles base
Answer:
Height = 8 units
Step-by-step explanation:
Area of a triangle = [tex]36\frac{4}{5}[/tex] square units
= [tex]\frac{184}{5}[/tex] square units
Height of the triangle = [tex]9\frac{1}{5}[/tex] units
= [tex]\frac{46}{5}[/tex] units
Formula to calculate the area of a triangle is,
Area = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
[tex]\frac{184}{5}= \frac{1}{2}\times (\frac{46}{5})\times (\text{Height})[/tex]
[tex]\frac{184}{5}= (\frac{46}{10})\times (\text{Height})[/tex]
Height = [tex]\frac{184}{5}\times \frac{10}{46}[/tex]
= [tex]\frac{368}{46}[/tex]
= 8 units
Therefore, height of the given triangle is 8 units.
Answer:
Its eight
Step-by-step explanation:
Since you need to do both steps just do them and then you can simplefiy
What conclusion can be drawn from the quiz scores shown below?
Ken's class: 72, 78, 83, 84, 85, 87, 92
Judy's class: 76, 78, 85, 87, 89, 92, 98
Answer:
Ken class has a median of 84 while Judy class a median of 87
Step-by-step explanation:
Ken class has a median of 84 while Judy class a median of 87
Kens class has a mean score of 83, and Judy's class has a mean score of 86.43(rounded) so, judging by the mean, Judy's class is smarter. If we take a look at the median, (Ken: 84, and Judy: 87) then Judy's class is smarter. So, overall Judy's class is smarter than Ken's class.
this sounds and looks weird. The probability of the name of a day of the week ending in the letter “y” is _____.
Consider the point p=(1,4) and the line y=2x+8 Equation in slope intercept form that passes through P and is parallel to the line
Answer:
No, also you can try to use desmos to figure it out it is a very helpful tool
Step-by-step explanation:
I need answers ASAP PLEASE HELP
Answer:
ok im telling people to help u because i dont know that xd
Step-by-step explanation:
If the ratio of boys to girls in the school band is 2 to 3, which of these show possible numbers
of the boys and girls in band.
A. 24 boys, 36 girls
B. 20 boys, 35 girls
C. 36 boys, 24 girls
D. 35 boys, 20 girls
Answer:
A
Step-by-step explanation:
Simply guess and check, meaning the boys category must be divisible by 2 and the girls category must be divisible by 3
A: 24 boys ÷ 2 = 12 (equals a whole number so it is divisible; not a decimal)
36 girls ÷ 3 = 12 (both of the boys and girls are divisible by their corresponding numbers)
Yes
Now make sure the boys are a lower count than the girls as the ratio says it should be 2 to 3, meaning there are more girls than boys
B: 20 ÷ 2 = 10 (divisible)
35 ÷ 3 = 11.666 (this is a decimal answer so it is not divisible)
No
C: 36 ÷ 2 = 18
24 ÷ 3 = 8
Yes, they are divisible
Now lets check if boys have a lower count than girls
36 boys > 24 girls
This is not the solution as it doesn't reflect the correct ratio of less boys than girls
D: 35 ÷ 2 = 17.5 (not divisible)
20 ÷ 3 = 6.66 (not divisible)
Find the x-intercept of the graph of y=2x+7
factorize x^3 +x^2-4x-4
Rewrite the equation by completing the square 2x^2-11x+14=0
Answer:
x1 = 2 and x2 =7/2 or 3.5 yeah it says I need 20 word but I'm done so bye good luck!
Find the surface area of each figure. Round your answers to the nearest hundredth, if necessary
Answer:
396π.cm^3
Step-by-step explanation:
ere's your solution
=> height of cylinder = 11 cm
=> radius of cylinder = 6 cm
=> volume = πr^2h
=> putting the value of radius and height in formula
=>volume = 6^2*11 π
=> volume = 36*11 π
=> Volume = 396π .cm^3
Please help answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!! URGENT
Answer:
8 rad 2 or 11.313
Step-by-step explanation:
hope i helped you
Help
I need help please
A line includes the points (1,9) and (9, 10). What is its equation in point-slope form?
Use one of the specified points in your equation. Write your answer using integers, proper
fractions, and improper fractions. Simplify all fractions.
Answer:
y - 9 = 1/8(x - 1)
Step-by-step explanation:
m = (10 - 9)/(9 - 1) = 1/8
y - 9 = 1/8(x - 1)
A car covers a distance of 50 km in 360 min . Calculate the speed of the car
Answer:
0.15 km/min
Step-by-step explanation:
V=S/T
=50/360
≈0.15km/min
Solve the two-step equation. 14=31.7-3x
Answer:
x=5.9
Step-by-step explanation:
First, you want to isolate x so you have to subtract 31.7 from both sides. This will make the equation -3x=-17.7. Because they are both sides are negative, you can change both sides to positive so it will be 3x=17.7. Next, you want x to be 1 so you have to divide 3 in both sides. This will make the equation x=17.7/3. Simplify that to get x=5.9.
If this has helped you, please mark as brainliest.
Answer:
1203.3734754701242754528955797863116165046
-3(7n+1) solve for n??
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\textsf{-3(7n + 1)}\\\\\huge\text{DISTRIBUTE}\downarrow\\\\\large\textsf{(-3)(7n) + (-3)(1)}\\\large\textsf{(-3)(7n) = -21n}\\\large\textsf{-3(1) = -3}\\\large\textsf{\bf = -21n - 3}\\\\\\\boxed{\boxed{\large\textsf{Answer: \huge \underline{\bf -21n - 3}}}}[/tex]
[tex]\text{Good luck on your assignment and enjoy your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
If the corresponding heights of similar pyramids are in a ratio of 2:5. What will be the ratio of the volumes of the similar pyramids?
2:5
8:125
4:25
6:15
Answer:
2:5
Step-by-step explanation:
Shapes that are similar have the same ratio (and angle measurements), usually the only change in similar shapes is through a dilation or rotation.
Do you mind giving me brainliest?
Hope this helps! :)
Find the missing value. Original price: $32 Discount: ? Sale Prince: $8
Answer:
75% off
Step-by-step explanation:
(80 POINTS) identify the sequence of transformations that maps quadrilateral ABCD onto quadrilateral A”B”C”D”
A. 180° rotation around the origin; reflection over the x-axis
B. translation (x,y)—>(x-2,y+0); reflection over the line x=-1
C. enlargement; reflection over the y-axis
D. reflection over the x-axis; reduction
Answer:
I think the answer would be the b
Answer:
b
Step-by-step explanation:
2x+y=40 kx+2y=80
A system of equations is shown, where k is a constant. If the lines represented by the equations in the system are graphed in the xy-plane, for what value of k would the lines coincide?
A. -4
B. 1
C. 2
D. -4
The value of 'k' for the given system of equation that coincides is 4
k=4
Given :
System of equations
[tex]2x+y=40 \\kx+2y=80[/tex]
The given equation is in the form of ax+by=c
When the two lines coincides then
[tex]\frac{a_1}{a_2} =\frac{b_1}{b_2} =\frac{c_1}{c_2}[/tex]
Lets make the coefficients proportional to each other and then solve for k
[tex]\frac{2}{k} =\frac{1}{2} =\frac{40}{80} \\\frac{2}{k} =\frac{1}{2} =\frac{1}{2} \\\\\frac{2}{k} =\frac{1}{2} \\4=k\\k=4[/tex]
The value of k from the given system of equation is 4
When the line coincides then the value of k is 4
Learn more : brainly.com/question/24022234
in triangle ABC the measure of angle a is 60 angle b is 60 what is angle c?
Answer:
60
Step-by-step explanation:
[tex]180 - 2(60) = 60[/tex]
Answer:
60°
Step-by-step explanation:
A triangle with two 60° angles has another 60° because 180-(60+60)=180-120=60°.
Also, this is an equilateral triangle.
how do i describe what each variable and parameter means in an exponential equation
y=a(b)x
Answer:
A general exponential equation is written as:
y = a*(b)^x
Where:
y represents the amount of something as a function of the variable x, where x is an independent variable.
a is the initial amount, this is, the value of y when x = 0.
b is the rate of growth, this defines how much changes the value of y as x increases.
Find the measure of angle zvy.
Answer:
Step-by-step explanation:
(2x) + (3x+5) = 90°
5x = 85°
x = 17°
A random sample of 20 of the 200 students at Garland Elementary is asked how many siblings each has. The data are ordered as shown which
statement below would be an appropriate inference of the data?
0.11.11.11.2.2.2.2.2.3,3,3,3,4,4,4,6
Answer: a is the answer
Step-by-step explanation:
Tinker is a fully grown cat. He eats 2/3 of a can of cat food a day. How many cans of food does Tinker eat in a week?
Someone help aha! Step by step would be appreciated!
Step-by-step explanation:
one week has 7 days
7 × 2/3 = 4 2/3 cans
Write 18% as a fraction and simplify it as much as possible.
a) 9/50
c) 3/25
b) 18/100
d) 4.5/25
Answer:
a
Step-by-step explanation:
find the greatest common factor; 18 and 100 is 2
divide numerator and denominator by 2
therefore 9/50
What would you multipy and to which equation to start solving by using the elimination method? Then would you add or subtract them?
7x + 4y = -4
5x + 8y = 28
Answer:
multiply the first equation by -2, then add them
Step-by-step explanation:
7x+4y=-4 *-2 7x+4y=-4 *-2 = -14x-8y=8
5x+8y=28
-14x-8y=8 x=-4, y=6
-9x=36
x=-4
7(-4)+4y=-4
-28+4y=-4
4y=24
y=6
Please help me with this
Answer:
B. 1/3
Step-by-step explanation:
15/45 = 1/3
- 240 + 370
help plz
Answer:
the answer is 130
Step-by-step explanation:
Answer:
130
Step-by-step explanation:
when adding you positive number to a negative number you have to subtract. so to make it easier im going to change it from -240 +370 to
370-240 and solve
370-240=130
have a great day :D
I am sorry you guys I am simply trying my best to do this Khan Academy, but I simply don't understand trig.
How do I solve this? Thank you!
Answer:
Step-by-step explanation:
cosx=(adjacent side)/(hypotenuse)
cosB=3/5
the cost of 7 toys is 294 find the cost of 2 toys
Answer: 84
Step-by-step explanation:
1) 294 ÷ 7 = 42
2) 42 × 2 = 84