Answer:
x = - 36
Step-by-step explanation:
Given that y varies inversely as x then the equation relating them is
y = ← k is the constant of variation
To find k use the condition y = 27 when x = 12, then
k = yx = 27 × 12 = 324, thus
y = ← is the equation of variation
When y = - 9, then
- 9 = ( multiply both sides by x )
- 9x = 324 ( divide both sides by - 9 )
x = - 36
The radius of the red circle is 7 units and the distance between the two circles is 3 units.
What is the diameter of the red circle?
A 8 units
B 12 units
C 14 units
D 20 units
Answer:
14
Step-by-step explanation:
The diameter is always the same as 2*the radius, so if the radius is 7, the diameter is 14. Most of the information presented is unrelated.
which of the Following angle pairs are considered Vertical angles
Answer:
Vertical pairs are the complete opposite of one another. It is simple to find vertical pairs because they are opposite of one another.
Step-by-step explanation:
Look at the example.
What is the sum of C and D?
А в с
Р
DE
-10
-6
-2
o 2
4
No
8 10
С 10
C -10
С-2
Answer:
I'm not 100 % sure but I think is zero
Answer:
The answer is -5 + 5= 0 Or its A
....................................
Answer:
i think the anwser is the third one c
Answer:
The answer is A. m || n.
Step-by-step explanation:
The answer is A. m || n.
If the lines are parallel, then the angle to the right of angle 3 is congruent to angle 1 since they are alternate interior angles of parallel lines. That makes m(1 + m<2 + m<3 = 180 deg.
Molly wants to buy a dress that costs $20. She has a coupon for 40% off, and there is a 10%
sales tax. How much will she pay altogether? Answer the questions to find out. 3.How much is the 10% tax on the sale price? Explain how you found your answer.
Answer:
13.20$ :)
Step-by-step explanation:
40% off of 20$ is 12$ and 10% of 12$ is 1.20$ add that and you get 13.20$
WILL MARK YOU BRAINLIEST!!!!!!
Answer:
its the first one I think
Step-by-step explanation:
Answer: the first one
the third one and the last one hope this helps
Step-by-step explanation:
40 puntos!!!!!
-¿Qué nombre recibe el punto de intersección de la recta con el eje de las
abscisas?
-¿Qué nombre recibe el punto de intersección con el eje de las ordenadas?
Answer:
origen es la respuesta a ambas preguntas
Answer:
1)origen
2)origen
Step-by-step explanation:
have a good day
Rebekah lives on a large, rectangular-shaped property that has a length 500 m and a width of 200 m. If it takes Rebekah 420 s to run the entire perimeter of her property, what is her average speed in meters per second rounded to the nearest hundredth?
Answer:
3.33m/s
Step-by-step explanation:
The perimeter of a rectangle is
= 2(L + W)
L = 500m
W = 200m
= 2(500 + 200)
= 2(700)
= 1400m
If it takes Rebekah 420 s to run the entire perimeter of her property.
Her average speed in meters per second rounded to the nearest hundredth is = Distance/Time
= 1400m/420s
= 3.3333333333 m/s
Approximately = 3.33m/s
2/3(6y+9)
Need help
Answer:
2(2y+3) or simpified completely 4y+6
Step-by-step explanation:
Shelby wrote a 2 1/3 page English paper and a 3 3/4 page History paper. How many total pages did she write?
Answer: 6 pages
Step-by-step explanation: 2 1/3 + 3 3/4 = 6
Solve. 6 · x = 42 plzzzzzz fast
Answer:
6 · x = 42 and x = 7
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
Fabio is driving west away from Albany and towards buffalo along interstate 90 at a constant rate of speed of 62 miles per hour. After driving for 1.5 hours Fabio is 221 miles from Albany
Answer:
The distance between Albany and Buffalo along the I90 is 288.8 mi.
The speed of Fabio is 62 mph.
After 1.5 hours, he is 221 miles from Albany.
Things we can calculate here:
Using the relation:
Distance = time*speed.
We can calculate the number of miles that he moved in that 1.5 hours.
D = 62mph*1.5h = 93mi.
If after 1.5 hours, he was 221 miles Albany, then before that he was 93 miles closer to Albany.
His initial position was:
221 - 93 = 128 miles away from Albany.
Now we also can calculate the time left to arrive at Buffalo.
We know that the distance between Albany and Buffalo is 288.8 mi
And he is 221 mi away from Albany.
Then the distance left to Buffalo is:
288.8mi - 221mi = 67.8mi
And the time left will be:
Distance/speed = time
67.8mi/62mph = 1.1 hours.
He needs to drive for another 1.1 hours to get to Buffalo.
I REALLY NEED HELP
it’s number 13
Answer:
It would be Town B.
Step-by-step explanation:
be So if we have 2/5 out of 100 then we would multiply 5 times whatever number, which would be 20, and then we would multiply the numeratoar times 20 and we would get 40/100 and that would equal -3.40 so then -3.40 is a lower temp that -3.33 so it would be Town B.
Rapid Rental Car Company charges a $55 rental fee and $0.25 per mile driven. For the same car, Capital Cars charges $45 for rental fee and $0.35 per mile. Write an equation and find the number of miles for which the companies’ charges will be the same.
Answer:
100 miles
Step-by-step explanation:
Let the number of miles driven = x
Rapid Rental Car Company charges a $55 rental fee and $0.25 per mile driven.
$55 + $0.25x
55 + 0.25x
For the same car, Capital Cars charges $45 for rental fee and $0.35 per mile.
$45 + $0.35x
45 + 0.35x
Equation :
55 + 0.25x = 45 + 0.35x
The number of miles for which the companies’ charges will be the same is calculated as:
55 + 0.25x = 45 + 0.35x
Collect like terms
55 - 45 = 0.35x - 0.25x
10 = 0.10x
x = 10/0.10
x = 100 miles
The number of miles for which the companies’ charges will be the same is
100 miles.
Is Queen Beyoncé correct or incorrect? If she's incorrect, what did she do wrong?
Answer:
she is correct its all about queen B
Step-by-step explanation:
Answer:
Incorrect
Step-by-step explanation:
First thing she did wrong was applied to distributive property incorrectly. She should of multiplied the numbers in the parenthesis by -1 instead of -12
PLS HELP I WILL GIVE YOU Brainliest
Answer:
3/2
Step-by-step explanation:
Because the problem tells you that the two triangles are similar, the value of a/b would be equivalent for both triangles. The fact that they are right triangles also indicates which sides are which in case the image was not drawn to scale. A is proportional to 2.1 and b is proportional to 1.4. So a/b= 2.1/1.4. This can reduce itself to 3/2 because both are divisible by .7
10 brainiests !! 6m-8=2(m+5) m=?
6m-8=2m+10
6m-2m=10+18
4m=28
m=28/4
m=7
What is 90.125 written in expanded form?
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
The engineers designing the All Aboard Railroad between Boca Raton and Jupiter decide to create parallel tracks through this portion of the railway. To illustrate their plans to the county commission, they use a coordinate plane. The southbound track will have an equation of 2x + 5y = 15. What is the equation of the parallel northbound track that runs through the point (4, – 2)?
Answer:
there are no signs between the x and y and constant
it could be
2x+5y=15
2x+5y=-15
-2x+5y=15
2x-5y=15
for ax+by=c, the equation of a line paralell to that is
ax+by=d where a=a, b=b, and c and d are constants
(for this answer, I'm going to use 2x+5y=15)
given 2x+5y=15, the equation of a line paralell to that is 2x+5y=d
to find d, subsitute the point (4,-2), basically put 4 in for x and -2 for y to get the constant
2x+5y=d
2(4)+5(-2)=d
8-10=d
-2=d
the eqaution is 2x+5y=-2 (Only if the original equation is 2x+5y=-15
pls mark me brainlest
Answer:
2x+ 5y= -2
Step-by-step explanation:
Use the picture below please!!
Answer:
AB and BC are Skew
AE and BF are Parallel
Step-by-step explanation:
f(x) = 8x + 1
f^-1(x)
f^-1(x) = 1/8x+1 (an inverse power is the reciprocal of the function raised to the indicated value)
Answer:
(x+1)/8 = f^-1(x)
Step-by-step explanation:
switch x and y (aka f(x) )
x=8y+1
solve for your new y
(x+1)/8 = y
Please solve for X helppp
Answer:
x = 91
Step-by-step explanation:
The sum of the 4 interior angles of a quadrilateral = 360°
Sum the 4 angles and equate to 360, that is
x + 10 + x - 10 + x + 6 + x - 10 = 360 , then
4x - 4 = 360 ( add 4 to both sides )
4x = 364 ( divide both sides by 4 )
x = 91
Answer:
I wish I could answer better, but the bets I can do is that 81<x<99
Consider the statement: Subtract 28 from t and multiply the difference by 4.
Which expression represents the statement above?
A. 4(28*t)
B.t-28*4
C.28-t*4
D.4(t-28)
Answer:
D!
Step-by-step explanation:
We need to obviously subtract, only C and D do thatt. But, you don't multiple t or 28 by 4. You need to multiply the difference, so you need parentheses!
What is (2,6) reflected over the y-axis?
Answer:
(-2,6)
Step-by-step explanation:
Help help me plsssssSss
Answer:
Step-by-step explanation:
it is that because it equalls with positives numbers and if u do your calculation maybe youll undestand
Divide. Round to the nearest tenth if necessary. 118.5 divided by 5
Answer:
23.7
Step-by-step explanation:
what is the LCM of the next numbers
30
42
54
Answer:
1890 is the least common factor
Answer:
for 30 its Prime factorization of 30 = 2 × 3 × 5. Using all prime numbers found as often as each occurs most often we take 2 × 2 × 3 × 5 = 60. Therefore LCM (12,30) = 60.
for 42 its 42 and 54 is 378.
for 54 its The prime factorization of 54 is: 2 x 3 x 3 x 3. The prime factorization of 72 is: 2 x 2 x 2 x 3 x 3. Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(54,54) = 2
Step-by-step explanation:
which expression belongs in the box (3x8)x4=3x( )
Answer:
(3 x 8) x 4 = 3 x ( )
*8 x 4 = 32*
3 x (32)
The value that belongs to the box is ( 8 x 4).
What is Associative Property?The associative property is a math rule that says that the way in which factors are grouped in a multiplication problem does not change the product.
Given:
We have (3 x 8) x 4 = 3 x ( )
We know from associative Property
a x ( bx c) = (a x b) x c
Here a= 3, b=8 and c= 4
So, (3 x 8) x 4 = 3 x ( 8 x 4).
Learn more about Associative Property here:
https://brainly.com/question/30111262
#SPJ2
What is the solution of 3x+8/x-4>_0?
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)
Answer:
The answer is C on Edge
Step-by-step explanation:
Steve invested money in the stock market. In the first year, his stock increased 50%. He paid his stockbroker $350 and then lost $400. He withdrew $300, and then his remaining investment doubled. Steve's investment is now worth $8100. How much was Steve's original investment?
Answer:
Original amount invested = $3400 .
Step-by-step explanation:
Let the original investment of Steve = $x
Stock increased in the first year = 50% of amount invested
Therefore total amount after one year = x + 0.5x = 1.5x
Commission paid to the stock broker = $350
Amount lost by him = $400
Amount withdrawn by him = $300
Total amount decreased from the amount after 1 year
= 1.5x - (350 + 400 + 300)
= 1.5x - 1050
This remaining amount is doubled, so the final amount
= 2(1.5x - 1050)
= 3x - 2100
This final amount is equal to $8100
3x - 2100 = 8100
3x = 8100 + 2100
3x = 10200
x = $3400
Therefore original amount invested in the stock market was $3400 .