Answer:
x=2,y=3 (2,3)
Step-by-step explanation:
substitution method?
[tex]x=\frac{5y-9}{3} \\[/tex]
[tex]-\frac{4(5y-9)}{3} + 6y=10[/tex]
simplify
(2,3)
can somebody help? marking brainliest:)
Answer:
23/16
Step-by-step explanation:
23/16+1/16=24/16=3/2
What is the volume of a cone with a diameter of 8 in and a height of 5 in?
Answer:
V=80π/3 or V=83.78
Step-by-step explanation:
The volume is
V=πr^2h/3
r=4 (because the radius is half the diameter)
h=5
V=π16*5/3
V=80π/3
Answer:
83.73
Step-by-step explanation:
volume = (1/3) · π · r2 · h
volume = (1/3) x 3.14 x 4^2 x 5
volume = (1/3) x 3.14 x 16 x 5
3.14 x 16 x 5 = 251.2
1/3 x 251.2
83.73
Sara’s ice cream looks pretty normal. It is shaped like a cone topped with a half-sphere. The cone has a height of 9 in and a radius of 4 in.
What is the approximate volume of the whole shape? Round your answer to the nearest tenth. Use 3.14 to approximate pi. (Show your work.)
Answer: 284.7
Step-by-step explanation:
radius of cone and hemisphere are the same
volume of half sphere=(1/2)*(4/3)*[tex]\pi r^{3}[/tex]
=(1/2)*(4/3)*3.14*[tex]4^{3}[/tex] (4*4*4=64)
=133.97333
=133.97
volume of cone= (1/3)[tex]\pi r^{2}[/tex]h
=(1/3)*3.14*[tex]4^{2}[/tex]*9 (4*4=16)
=150.72
total volume=133.97+150.72
=284.69
=284.7
A car magazine reports the number of miles driven for different amounts of gas for car C. How many miles does the car travel on 2 gallons of gas?
1. 100 miles in 2 gallons
2. 50 gallons in 2
3. 10 in 2
ANSWER NOW PLZ
Answer:
2. 50 gallons in 2 miles.Step-by-step explanation:
By closely observing the graph, we can see that the blue line of the graph meets both points, 2 gallons and 50 miles.
I would appreciate it if you would please mark me brainliest!
The cost to produce the master disc of a DVD is $2000, while additional discs costs $4 each. Determine a profit function P that results if the DVDs are sold for $15. Find the profit from selling 2800 DVDs.
Find p(x)
Step-by-step explanation:
p(x) = 15x-(2000+4x)
profit is going to be the difference between how much money you get from sales less the cost to make the items
the money you make in this case is $15 times the number of cds you sell, we will call the number of cds x
so 15x is the money from sales
the costs you have are 2000 to create the master and then $4 for every cd you create, so your costs will be 2000+4x
so profit is sales minus costs, therefore we get
p(x) = 15x - (2000+4x)
now to find specifically the profit when we create and sell 2800 cds, x = 2800, so we substitute that value in for x
p(2800) = 15(2800) - (2000+4(2800))
= 42000 - (2000+11200)
= 42000 - 13200
= 28800
The profit of selling 2800 additional DVDs is 28800 dollars.
What is a function?A function can be defined as the outputs for a given set of inputs.
The inputs of a function are known as the independent variable and the outputs of a function are known as the dependent variable.
Given, The profit function is P, and let no. of DVDs sold is x and the profit on each additional disc is,
= $(15 - 4).
= $11.
∴ The profit function p is,
P = 11x - 2000.
So, the profit by selling 2800 additional discs is,
P = 11(2800) - 2000.
P = 30800 - 2000.
P = 28800 dollars.
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ea income of a person is Rs
90000. It is
It is increased by 15.1., what
after one year
- ?
is the income of person
Answer:
$13500. 00 is the 15% increase yearly + $90000.00 = $103,500.00 new yearly salary
Lisa has been dancing for 3 more years than danika Danika has been dancing for 6 years
Answer:
lisa has been dancing for 9 yrs
Step-by-step explanation:
6+3=9
and ive been dancing for longer than both of them lol hope this helped :)
Answer:
9 Years
Step-by-step explanation:
Simplify each expression by combining like terms
a). x + 2x
b). 3m + 4n - 6n
Answer:
1) 3x
2) 3m - 2n
Answer:
below
Step-by-step explanation:
3x, 3 m − 2 n
Add the following Expressions ( Step by step )
the first person to answer the both will be marked as brainliest
Answer:
1. x³y² + 4x²y³ + 7y⁴ + x⁴
2. a² + b² + c² + 2ab + 2bc + 3ca
Step-by-step explanation:
1. x³y² + x²y³ + 3y⁴ and x⁴ + 3x²y³ + 4y⁴
= x³y² + x²y³ + 3y⁴ + x⁴ + 3x²y³ + 4y⁴
= x³y² + x²y³ + 3x²y³ + 3y⁴ + 4y⁴ + x⁴
= x³y² + 4x²y³ + 7y⁴ + x⁴
2. a² + 3ab - bc, b² + 3bc - ca and c² + 3ca - ab
= a² + 3ab - bc + (b² + 3bc - ca) + (c² + 3ca - ab)
= a² + 3ab - bc + b² + 3bc - ca + c² + 3ca - ab
= a² + b² + c² + 3ab - ab + 3bc - bc + 3ca - ca
= a² + b² + c² + 2ab + 2bc + 3ca
A company rents out 14 food booths and 20 game booths at the county fair. The fee for a food booth is $125 plus $8 per day. The fee for a game booth is $50 plus $7 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.
How can canyons change because of erosion ? I will mark brainliest
Answer:
Ice forces the cracks to become larger and larger, eroding bits of stone in the process. During brief, heavy rains, water rushes down the cracks, eroding even more rocks and stone. As more rocks crumble and fall, the canyon grows wider at the top than at the bottom.
Sales associates at an electronics store earn different commission
percentages based on the items they sell. The table shows the total
sales and commission earnings for four sales associates at the
electronics store last month.
GIFTING EXTRA POINTS
Answer:
how am i gonna solve the equation if i cant see the actual chart?
Step-by-step explanation:
Write three hundred eighty-seven thousandths as a decimal number.
Answer:
0.387
Step-by-step explanation:
Answer:
The answer would be 0.387
answer pls. question in photo
Answer:
-The answer is =19400
Step-by-step explanation:
i hope this helps
You measure 3 inches between your house and the movie theater. How many miles is in from your house to the movie theater?
Answer:
4.734 * 10^-5 miles
Step-by-step explanation:
Given that:
Distance between House to movie theater = 3 inches
Expressing the distance in miles :
Converting inch to miles
1 inch = 1.578 * 10^-5 miles
3 inches = (3 * 1.578*10^-5)
3 inches = 4.734 * 10^-5 miles
determine the degree measure of an arc whose central angle measures 4pi/15 radians
Answer:
[tex]\boxed{\textsf{ The degree measure is \textbf{ 48}$^{\textbf{o}}$.}}[/tex]
Step-by-step explanation:
Here we are given radian measure which is 4π/15 radians . We know the relationship between Radian and Degree measure as ,
[tex]\qquad\boxed{\boxed{ \sf\pi rad = 180^o }}[/tex]
Put on the respective values ,
=> π rad = 180°
=> 1 rad = 180°/ π
=> 4π/15 rad = 180°/π × 4π/15
=> 4π/15 rad = 48 °
The monthly membership costs include a $10 basic fee plus $2 for each DVD she rents. Which equation describes v, the number of DVDs Ingrid can rent, based on T, the amount she spends for membership costs per month?
A. v= t/2 - 5
B. v= t/2 - 10
C. T= v/2 - 10
D. T= v/2 - 5
Answer:
A) v = T/2 - 5
Step-by-step explanation:
T = 10+2v
2v = T-10
v = (T-10)/2 = T/2-5
The equation that describes no. of DVDs that Ingrid can rent is A. v = (T/2) - 5.
What is an equation?An equation states that terms on both sides of the equality sign are equal.
The monthly membership costs 10 dollars, and The rent for each DVD costs 2 dollars.
No. of DVDs that can be rented is denoted by v based on T.
The equation that describes the total cost of renting DVDs is,
T = 2v + 10.
∴ The equation that describes no. of DVDs that can be rented is
2v = T - 10.
v = (T/2) - 5.
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7 yd
Determine the Volume. Write an exact answer.
A)
B)
C)
6861 cubic yards
228.61 cubic yards
718.31 cubic yards
18
27
Answer:
C) 718.3 cubic yards
Step-by-step explanation:
I hope this helps :)
Answer:
228.6π cubic yards
Step-by-step explanation:
Volume of a cone formula: V = 1/3hπr²
h = 14
r = 7
Just plug in the values.
1/3(14)π(7)² = 228.6π
I NEED HELP ASAP :))))
Answer:
its 8/3 and 2
Step-by-step explanation:
its that answer because on the chart its f(x and g(x and there both on there
Answer:
It should be C
Step-by-step explanation:
I hope this helps!
b. In a hockey tournament, Jeremy's team scored 7 goals and had
8 goals scored against it. How many goals did Jeremy's team
lose by?
Answer:
Jeremy's team lost by 1 to get a tied game but his team lost by 2 for the win
I need help with part a to this question
Answer:
x : __ - 2 __ -1 ___0 ___ 1 ___ 2 ___ 3
y: ___ 5___ 2___ 1 ___ 2____5 ___ - 3
Step-by-step explanation:
Table of values for part A
Equation : y = x² + 1
x : __ - 2 __ -1 ___0 ___ 1 ___ 2 ___ 3
y: ____ ___ ___ 1 __ ___5 __ - 3
Substitute the value of x to obtain the missing values _
x = - 2
y = (-2)² + 1 = 4 + 1 = 5
x = - 1
y = (-1)² + 1 = 1 + 1 = 2
x = 1
y = (1)² + 1 = 1 + 1 = 2
50,60,72 find the 8th term airthmetic and geometric sequence
Answer:
8th term is 179.15904
Step-by-step explanation:
The sequence is geometric with a common ration = 6/5
r = 60/50 = 72/60 = 6/5
Use the formula
[tex]a_{n} = ar^{n - 1}[/tex]
In your case a = 50, r = 6/5 and n = 8
[tex]a_{8} = 50(6/5)^{8 - 1} \\ = 50(6/5)^{7} \\ = 50(279936/78125)\\ = 179.15904[/tex]
Each quadrilateral below is a parallelogram. Find the missing measures
Answer:
GH = 13
FG = 20
<F = 78
<G = 102
<H = 78
Step-by-step explanation:
Since there are 5 measures that are missing, we will do each one in a different part.
1. The side length of GH is 13. Since this is a parallelogram, the opposite side of your original side is congruent, meaning that its the same. So, knowing that the opposite of FI is GH, we can say that GH is 13 units long.
2. We can use the same logic for number 2, when finding FG. Since HI is 20. we can say that since the corresponding side is also congruent to our original length, they are equivalent. Basically meaning they are the same
3. a. For finding F, we will need to use a different method. Since a parallelogram is somewhat like a transversal we can use that to our advantage. (If you don't know what a transversal it, look at part B instead) Since we know that angle I is 102, and both line FG and HI are parallel, the angles are basically adjacent, when switched. So we should see that it would have to be 78. Meaning that F is 78.
3. b. If you don't understand what a transversal is, we can still figure it out. Knowing that the figure is a closed shape, along with knowing that its a parallelogram, we can say that if we were to sum the angles F and I, we would get 180. 180-102=78, so F is 78.
4. Since we can use a transversal or just pure logic to say that angle G and I are equivalent, meaning that G is 102.
5. This one is exceptionally simple, just for the fact that we have answered the previous questions. We have H left, which is not only equivalent to F, but using 3. b. we can say that its would only make sense that H is 78 as well, to sum up that half to 180.
Find the slope of the line through the pair of points.
L(–9, 6), M(–1, –9)
[tex]\frac{3}{10}[/tex]
-[tex]\frac{15}{8}[/tex]
[tex]\frac{15}{8}[/tex]
-[tex]\frac{8}{15}[/tex]
Answer:
Hi!
Step-by-step explanation:
Slope is -15/8
Final answer is -15/8
I hope this helps you!
Have a nice day! :)
-
:D
Step-by-step explanation:
Slope is rise over run. This means your y is over your x. Start with subtracting your y values. It doesn't matter which way, just make sure you do the same with the x values. For this, I'll do it 6 - -9. The two negatives cancel out and make a positive, so your y value is 15. Now, do the same to the x values. -9 - -1 is -8. You're left with 15/-8. Since this can't be simplified, this is your final answer. Hope I helped!
Samantha wants to treat her friends to a movie. Tickets cost $6 each and popcorn and drinks will cost $30. She can spend no more than $150 so how many friends can she take?
a) Write an inequality to represent the situation.
b) Solve the inequality to find the maximum number of friends she can take?
6x+30(less than or equal to sign) 150
The max amount of friends she can bring is 20 that is the answer to the question
Can you guys please help me with this problem
Step-by-step explanation:
a+10=44°[being interior angle of triangle]
a=44-10
a=34
now
2a
2×34
68
igussss
find the equation of the line shown:
Answer:
Y= -1/2x -1
Step-by-step explanation:
Work out
169% of 705.8kg
Give your answer rounded to 2 DP.
Find the slope of the line that passes through (3, 8) and (5, 9).
Answer:
1/2
Step-by-step explanation:
y2-y1 divided by x2-x1 is (9-8)/(5-3)= 1/2
Answer:
slope= 1/2
Step-by-step explanation:
There are 7 more girls than boys in an 8th grade class. There are a total of 53 students in this 8th grade class. How many girls are in this 8th grade class
A.)17
B.)21
C.)27
D.)30
Answer:
17
Step-by-step explanation:
I hope it correctly does come true as I am in the process
