Answers
Answer:x = 12,5
using thales's theorem, we have:
[tex]\frac{15}{15+36}=\frac{20}{6x-7}\\\\<=> 6x-7=\frac{20.(15+36)}{15}=68\\\\<=>x = \frac{68+7}{6}=12.5[/tex]
Step-by-step explanation:
Related Questions
4x+5y=9
4x−2y=2
x= y=
Answers
Answer:
For example, the solution to the equations 2x + 3y = 15 and x - y = -10 is x = -3 ... Equation 2: 4x + 2y = 20
Answer:
x=0, y=0 this is so easy
you have 50$ and want to buy some shoes that cost $45. the tax rate for the shoes is 7%. do you have enough money to buy the shoes?
Please answer questions answer don't write a random word I will report and get banned from the site
Answers
Answer:
Yes, you have enought money
Step-by-step explanation:
45 times 107% (100 for the total cost and and 7 for the tax) is equal to 48.15. You have 50 dollars, therefore you can buy your shoes.
I WILL MARK YOU BRAINLIEST PLEASE HELP. It needs to be correct
Answers
Answer:
a) Center of dilation (0,0)
b) Scale factor = 2
Step-by-step explanation:
Dilation of Polygons
The triangle ABC has its vertices at A(-2,2), B(4,2), and C(-2,-2).
The triangle A'B'C' has its vertices at A'(-4,4), B'(8,4), and C'(-4,-4).
Since A'B'C' is a dilation of ABC, we check if all its vertices are proportional with the same scaling factor.
Both vertices of A' are twice the vertices of A: (-4,4)=2*(-2,2)
Both vertices of B' are twice the vertices of B: (8,4)=2*(4,2)
Both vertices of C' are twice the vertices of C: (-4,.4)=2*(-2,-2)
a)
The proportionality of the coordinates of the vertices tells us the center of dilation must be the origin of coordinates (0,0).
b)
The scale factor is the constant number all the vertices are multiplied by, that is, scale factor = 2
evaluate the expression 8/d + 3 when d=4
Answers
Answer: 5,
Step-by-step explanation: I got it right, and I hope this helps you! ✨
Answer:
the evaluation of the equation is 5
Step-by-step explanation:
To add fractions, find the LCD and then combine.
pls help on these two math questions ill give brainlyest to first correct answer
Answers
Answer:
#1: Dillon, Harry, Paul, Winston #2: B
Step-by-step explanation:
#1: Absolute value is the opposite of the negative number, so it's just 2, 8, 10, and 13.
#2: Count by 10's, it's on the 50 line
Answer:
1)Dillon, Harry, Paul and Winston
2) C
Anyone willing to help? Surprise included
Answers
Answer:
An arithmetic sequence has a constant difference between each term.
For example: 2,4,6,8,10,12,…
We can see clearly that all the terms differ by +2.
We call this the common difference, d.
A geometric sequence has a constant ratio (multiplier) between each term.
An example is: 2,4,8,16,32,…
So to find the next term in the sequence we would multiply the previous term by 2.
This is called the common ratio, r.
These sequences are closely related as they both have the same first term, but I hope you can see how different they become if they have a common difference or a common ratio.
We can create a decreasing arithmetic sequence by choosing a negative common difference.
Similarly, a decreasing geometric sequence would have a common ratio of less than 1.
Step-by-step explanation:
What is the percent change from 9,000 to 900?
Answers
Answer:
-90%
Step-by-step explanation:
Change/ original x 100
9000-900= 8100
8100/9000= 0.9
0.9 x 100 = 90
Find two numbers with a sum of 16 and a difference of 4.
Answers
Answer:
10 and 6
Step-by-step explanation:
Variable equation:
x+y=16
x-y=4
Substitution: eq1-eq2.
2y=12
y=6
x=10.
Hope this helps :D
Step-by-step explanation:
Let the numbers are x and y
[tex]\longrightarrow\sf x+y=16 [/tex]
[tex]\longrightarrow\sf x-y=4[/tex]
add them
[tex]\longrightarrow\sf 2x=20 [/tex]
[tex]\longrightarrow\sf x=10[/tex]
Substitute the value in eq (1)
[tex]\longrightarrow\sf 10+y=16 [/tex]
[tex]\longrightarrow\sf y=6 [/tex]
numbers are 6 and 10
(Riddle #1 ) BRAINLIEST! I hope you are all having a wonderful day and Happy Thanksgiving (if you celebrate thanksgiving)! I will be asking some riddles, if your answer if correct I will mark your answer as brainsliest :D Please don't Google or search up any of the riddles, I want everyone to have a fair chance to win the brainliest, thank you.
Riddle #1
What will happen if an unstopable force meets an immovable object?
Answers
Answer:
The "paradox" is flawed because if there exists an unstoppable force, it follows logically that there cannot be any such thing as an immovable object and vice versa.
Step-by-step explanation:
:>
Answer:
nothing happens
Step-by-step explanation:
probably incorrect :0
Solve the equation below for : y.6x – 3y = 36
A. y = 2x – 12
B. y = 12 - 2x
C.y = 1/2 x + 6
D. y= 6 - 2x
Answers
Hi there! :)
[tex]\large\boxed{A. \text{ } y = 2x - 12}[/tex]
6x - 3y = 36
Solve for y:
begin isolating by subtracting both sides by 6x:
6x - 6x - 3y = 36 - 6x
-3y = 36 - 6x
Divide both sides by -3 to solve for y:
(-3y) / (-3) = (36 - 6x)/ (-3)
y = -12 + 2x
Rearrange:
y = 2x - 12, or choice A.
Please help with this, all I need is for this paper to be done and then I’ll have a good grade in algebra
Answers
Answer:
use desmos.
Step-by-step explanation:
demos. All you have to do is out the equation into Desmos and it will graph it for you. You can look and learn.
Which angles are adjacent angles?
Answers
Answer:
<stv and <stq
Step-by-step explanation:
adjacent angles have the same vertex and are side by side.
i need the answers for the seven angels
Answers
Answer:
<1=83
<2=97
<3= 83 (given)
<4=97
<5=83
<6=97
<7=83
<8=97
Step-by-step explanation:
They give you the angle for 3 which is 83, so from there all you have to do is find the equivalent angles which are angle 1,5,7. Then for angles 2,4,6,8 you subtract 83 from 180 and you get 97.
Express the following ratios in simplest form: 20:40
Answers
Answer:
1:2
Step-by-step explanation:
By dividing both sides by 20 you will get 1:2 which is the same thing as 20:40 if you multiply 1:2 on both sides by 20
Answer:
1 : 2
Step-by-step explanation:
20 : 40
20/10 : 4/10
2 : 4
2/2 : 4/2
1 : 2
The ground temperature at an airport is 14 °C. The temperature decreases by 5.4 °C for every increase of 1 kilometer above the ground. What is the temperature outside a plane flying at an altitude of 5 kilometers? The temperature outside a plane flying at an altitude of 5 kilometers is °C.
Answers
Answer:
-13 celsius
Step-by-step explanation:
5.4 * 5 = 27 degrees drop
14-27= -13
Melanie rides her bike. The circumference of her bike tire is 2.8 m, and the tire revolves 1.5 times per second. What is the distance Melanie rides in 100 seconds?
Answers
Answer:
420 m
Step-by-step explanation:
The distance travelled in 1 second:
2.8 m * 1.5 revolves
= 2.8 * 1.5
= 4.2 m
Distance travelled in 100 seconds:
4.2 m * 100
= 420 m
Hope this helped!
helppp messsss please
Answers
Comment if you need a better explanation :)
Brainlyest
write an expression for each of these expressions
A.divide 37 by a
B.subtract b from 55
C.add 18 to c
D.multiply 49 by d
E.divide e by 62
Answers
B. 55-b
C.18+c
D.49d
E.e/62
Show work thanks please help me
Answers
Answer:
∠ JKL = 32°
Step-by-step explanation:
Since KN bisects ∠ LKM , then
∠ LKN = ∠ NKM = 35°
Thus
∠ JKL = ∠ JKM - ∠ LKN - ∠ NKM
= 102° - 35° - 35°
= 102° - 70°
= 32°
YOU GET BRAINLIEST IF CORRECT!!!!!
Answers
It's really easy to solve this problem all you have to do is long division with 4,274 and 51.
4,274 divided by 51 is = to 83 but it still has decimals leftovers meaning there would be a remainder and since we already found out 81 is part of the answer we know it won't be 91 and it has to be 83 with a remainder!
Jenna took a math test and answered 15 out of 20 answers correctly. What percent of the questions did she answer correctly?
Answers
Answer:
75%
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
15 x 5 75
---- = -------
20 x 5 100
Cent means 100, so percent literally means per 100 like in century or centennial. So, I put it into a fraction over 100. Now it is 75 per 100. If you remember, per 100 is percent, it means the answer id 75 percent. You can also write it as 75%.
15.5 divided by 33.17
Answers
Answer: 15.5 divided by 33.17 would be 0.46728972
Make sure you put your decimal point
For any linear function f(x) = mx + b, when does 5f(x) = f(5x) + 5? A. when b = 0 B. when b = 54 C. when b = 5 D. always
Answers
Answer:
b = 5/4
Step-by-step explanation:
Equations
Given the function:
[tex]f(x)=mx+b[/tex]
It's required to find the value of b such that:
[tex]5f(x)=f(5x)+5[/tex]
Substituting:
[tex]5(mx+b)=5mx+b+5[/tex]
Operating:
[tex]5mx+5b=5mx+b+5[/tex]
Simplifying:
[tex]5b=b+5[/tex]
Subtracting b:
[tex]4b = 5[/tex]
Dividing by 4:
b = 5/4
There are 5 less oranges on the tree today than there was yesterday
Plz help
Answers
The no. of apples on the tree today
= The no. of apples on the tree yesterday - 5
Let us take 'the no. of apples on the tree today' as 'x'
and 'the no. of apples on the tree today' as 'y'
Therefore, x = y - 5
Hope this is the thing u are looking for
What is the slope of the line through (-1, 4) and (1,-2)?
Answers
Answer:
-3
Step-by-step explanation:
The rise is 6 and the run is 2
Brielle's piggy bank has all nickels and dimes. The total value of the money in her piggy bank is
$7.80. If Brielle has 66 nickels, write and solve a linear equation to find the number of dimes she
has.
What’s the linear equation
Answers
Answer:
Step-by-step explanation:
7.80=66(.05)+.10(x)
7.80=3.30+.10(x)
7.80=3.30+.10x
4.50=.10x
x=45
Check
66 nickels at .05=3.30
45 dimes at .10= 4.50
3.30+4.50= 7.80
A dilation with a center at
P
(
0
,
0
)
P(0,0) and a scale factor
k
k is applied to
M
N
‾
MN
. Let
M
′
N
′
‾
M
′
N
′
represent the image of
M
N
‾
MN
after the dilation.
Select each correct statement.
Answers
Answer:
bro I didnt understand your question can u resend it
PLEASE PLEASE HELP.
Answers
Answer:
120 square feet
Step-by-step explanation:
they are similar so they are in a ratio 20/10=2 so smaller triangle is twice the larger one 6×2=12ft
area of triangle =1/2×base×height
=1/2×20×12
=120 square feet
How to do this question plz answer
Answers
Answer:
a. 9 sides
b. 18 sides
c. 24 sides
d. 30 sides
Step-by-step explanation:
We can use the equation 180(n-2), which n is the number of sides to find the answer.
a. 180(n-2)=1260
n-2=7
n=9
b. 180(n-2)=2880
n-2=16
n=18
c. 180(n-2)=3960
n-2=22
n=24
d. 180(n-2)=5040
n-2=28
n=30
Answer:
a) 9 sides
b) 18 sides
c) 24 sides
d) 30 sides
Step-by-step explanation:
sum of interior angles = (n - 2) * 180
where n is the number of sides
a) 1260
(n - 2) * 180 = 1260
(n - 2) = 1260/180
(n - 2) = 7
n = 7 + 2
n = 9
b) 2880
(n - 2) * 180 = 2880
(n - 2) = 2880/180
(n - 2) = 16
n = 16 + 2
n = 18
c) 3960
(n - 2) * 180 = 3960
(n - 2) = 3960/180
(n - 2) = 22
n = 22 + 2
n = 24
d) 5040
(n - 2) * 180 = 5040
(n - 2) = 5040/180
(n - 2) = 28
n = 28 + 2
n = 30
Isabella pitches for her high school softball team. Of the 7 pitches she throws, 5 are strikes. She uses a standard deck of cards to model her pitches, with hearts, clubs, and spades representing strikes. Which statement about her model is true?
A- Her model can be improved the most by removing all the face cards from the deck. B-Her model cannot be improved. C-Her model can be improved the most by removing all the aces from the deck. D-Her model can be improved the most by removing the queens and kings of hearts, clubs, and spades.
Answers
Answer:
B. Her model cannot be improved.
Step-by-step explanation:
We make this conclusion because it seems Isabella's model isn't actually proffering any solution to increase/reduce the number of strikes she has had.
Hence, any changes made do not clearly seem to improve the present model she is using.
Answer:
The correct answer is D!
Step-by-step explanation: