(13/3) / (-2/1) = (13/3) / (-2) = - 13 / (3 • 2) = -13/6
21.6666666667 can be expressed as the fraction 21 2/3 or 65/3.
13/3 divided by -2/1 is equal to -13/6.
Given that we need to convert 21.6666666667 can be expressed as the fraction and 13/3 divided by -2/1 as a fraction.
To convert the decimal number 2.16666666667 to a fraction, we can multiply both the numerator and denominator by a power of 10 to eliminate the decimal point.
Since there is only one digit after the decimal point, we can multiply by 10.
2.16666666667 x 10 = 21.666666667
Now we have the number 21.666666667 as a whole number. Since there are three repeating digits (6), we can represent them as a fraction over 9 (since 9 is the largest power of 10 that is one less than the number of repeating digits).
21.666666667 = 21 + 0.666666667
= 21 + 6/9
Simplifying the fraction 6/9, we can divide both the numerator and denominator by their greatest common divisor, which is 3.
6/9 = (6 ÷ 3) / (9 ÷ 3)
= 2/3
Therefore, 2.16666666667 can be expressed as the fraction 21 2/3 or 65/3.
For the division problem (13/3) ÷ (-2/1), we can convert it into a multiplication problem by multiplying the first fraction by the reciprocal of the second fraction.
(13/3) ÷ (-2/1) = (13/3) x (1/-2)
Multiplying the numerators and denominators, we get:
(13 x 1) / (3 x -2) = 13 / -6
Therefore, 13/3 divided by -2/1 is equal to -13/6.
Learn more about Division and Multiplication click;
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the three inside angles are(A,B and C) of a right-angled triangle are the ratio 7:18:11. The smallest abbé is 35 degrees. Work out angle A,B and C
Answer:
a
Step-by-step explanation:
Answer:
it is b i believe this this this this this thsidjcbd dbchf f f f f f f. f f r r f f f f f
Step-by-step explanation:
how would this: 6.673 + 8.29 equal this: 14.963 ?!?!?!?!?
Answer:
You have to add -its easier to add up and down so you can see it more visibly-
Step-by-step explanation:
1
8.290
+6.673
14.963
Hope this helps! Have a great day!!
What is the meaning of the point with an x-coordinate of 2?
Answer:
In 2 seconds, the space station travels 10 miles.
Step-by-step explanation:
Well, if the x axis represents time in seconds and the y axis represents distance in miles, then when your x value is 2, your y value is 10.
Which are the solutions of x2 = 5x + 8?
2 = 5 + 8
hopes this helps
help asap please!! :(( I need help
Answer:
m1= 43
m2=17
m3=120
m4=m5=m6=60
m7=17
m8=120
m9=43
Step-by-step explanation:
"Given ABC is an isosceles triangle and DBE is an equilateral triangle. we have to find each missing measure.
In triangle ABC,
∠1=∠9 (∵isosceles triangle)
⇒ 4x+3=9x-47
⇒ 9x-4x=3+47 ⇒ 5x=50 ⇒ x=10
Hence, ∠9=∠1=(4x+3)°=4(10)+3=43°
Also, given ΔBDE is an equilateral triangle, and all angle of equilateral triangle are equal.
∴ ∠4+∠5+∠6=180°
⇒ ∠4+∠4+∠4=180° ⇒ 3∠4 = 180° ⇒ ∠4 = 60°
∴ ∠4=∠5=∠6=60°
By exterior angle property, ∠3=∠5+∠6=60°+60°=120°
∠8=∠5+∠4=60°+60°=120°
In ΔABD, ∠1+∠2+∠3=180°
⇒ 43°+120°+∠2=180°⇒ ∠2 = 17°
In ΔABD, ∠9+∠8+∠7=180°
⇒ 43°+120°+∠7=180°⇒ ∠7= 17°"
by SerenaBochenek
Simplify 12 square root 1764
Answer:
504
Step-by-step explanation:
Answer:
42
Step-by-step explanation:
The square root of 1764 (or root 1764), is the number which when multipiled by itself give the product as 1764. Therefore the square root of 1764 = √ 1764 = 42.
I NEED HELP ASAP PLEASE NO LINKS!!!
when i solved, i got 16? im not entirely sure though.
Answer:
16
Step-by-step explanation:
16
please help this is an 8 grade question
Which statement is correct
Answer:
statement B is correct.........
Please help me with this math problem! :) I will give brainliest!
AC=5cm
AB=6cm
BC=6cm
A=AC
A recipe for 10 bran muffins calls for 1 cup of flour. The number of muffins that can be made varies directly with the amount of flour used. There are 3 1/2 cups of flour available. How many muffins can be made?
Answer:
35
Step-by-step explanation:
3 1/2 x 10 =35
make 3 1/2 into an improper fraction: 3 x 2 + 1 = 7/2
make 10 into a fraction: 10/1
find the LCD (least common denominator) for each number:
10/1 = 20/2
7/2 = 7/2
20/2 x 7/2 = 70/2 = 35
:)
Answer:
35
Step-by-step explanation:
For 1 cup of flour, you make 10 muffins. Just by reading the problem, you see that the number of muffins, 10, is 10 times the number of cups of flour, 1.
For 3 1/2 cups of flour, you make 10 times that number muffins.
3 1/2 × 10 = 3.5 × 10 = 35
Answer: 35 muffins
You can also use a proportion.
1 cup flour is to 10 muffins as 3.5 cups flour is to x muffins.
1/10 = 3.5/x
Cross multiply:
1 × x = 10 × 3.5
x = 35
Answer: 35 muffins
Which picture shows a proper
reflection across the red dashed line?
A
B
Find the value of x.
Answer:
-5
Step-by-step explanation:
hope it works out for you
Donald bought 3 shirts for $45. How many shirts can Donald buy if he has $30? Show your work using mathematics.
Answer:
donald can buy 2
Step-by-step explanation:
price of a shirt = $45÷3
=15
=30÷2=15
Answer:2 shirts
Step-by-step explanation: if you divide 45$ by three you find out each shirt cost 15$ if you add fifteen twice you get 30$ theirfor you used all your money and can not buy another shirt.
Which of the following is true?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The Correct statement is :
RT is an altitude of Triangle QRSThe left and right page numbers of an open book are two consecutive integers whose sum is 23. Find these page number.
Answers: The page numbers are 11 and 12
==========================================================
Explanation:
Consecutive integers are ones that follow immediately after another. For example, the set {7,8,9,10} are consecutive.
Let,
x = first page, some positive whole numberx+1 = second page, follows immediately after page xAdding those two said pages will lead to 23
first + second = 23
(x) + (x+1) = 23
2x+1 = 23
2x = 23-1
2x = 22
x = 22/2
x = 11 is the first page
x+1 = 11+1 = 12 is the second page
Check: 11+12 = 23 which confirms the answers.
Find the length of the missing leg of a right triangle whose hypotenuse measures 15 cm and whose other leg measures 13 cm. geometry
Answer:
you can always use sin or cos or tan in these situations
What is the equation for the line parallel to y=2x+13y=2x+13 that contains (8,-4)(8,−4)?
I will assume you meant y = 2x + 13
Answer: y = 2x - 20
what is the scale factor from triangle abc to triangle A' B' C' ? Also explain how.
Help me please I really need it!
The rate of change is 3/4.
The rise is 3 and the run is 4.
Slope, or rate of change, is rise/run.
So, you get 3/4.
Answer: The answer would be 3/4!
Step-by-step explanation:
Select the correct answer.
100
n
In the figure, lines mand n are parallel to each other. Lines p and q are also parallel to each
m
other. What is the value of x?
Answer:
80
Step-by-step explanation:
in the figure above, angle 100 degrees is corresponding to the angle co - interior to angle x
that is
if we put an angle that is at the upper left of x, we can call that y which is corresponding to 100 degrees
since y is corresponding to 100 degrees, it automatically becomes the same as 100 degrees
therefore y=100
now, from the first line above, we know that x and y are co-interior which means that they both add up to 180 degrees
that is
x+y=180
we know that y = 100
therefore,
x+100=180
collect like terms and
x = 180-100
therefore,
x= 80
thank you!!
Please help me answer this
Answer:
→ 9x^2 - 4x - 3 = [41].
Step-by-step explanation:
Simplify:
9x^2 - 4x -3
=> 9(-2)^2 - 4(-2) - 3 [∵ x = 1 (Given)]
=> 9(4) - 4(-2) - 3
=> 36 + 8 - 3
=> 44 - 3
=> 41 Ans.
Find the value of x.
Answer:
Step-by-step explanation:
bring the varible to the left side and bring all of the remaining values to the right
Answer:
x=2.5
Step-by-step explanation:
because 4x-2=2x+3
4x-2x=3+2
2x=5 divide both by 2 it gives 2.5
give me brainlist please
On a given day, the exchange rate from US dollars to Australian dollars was 1 US dollar = 1.31 Australian dollar. About how much could you get in Australian dollars if you exchanged $560 US dollars on that day?
Answer:
733.6
Step-by-step explanation:
I did it
3x + 7 = x -5Group of answer choices x = -6 x = -7 x = 12 x = 6
Plz help ASAP!!
Picture attached:
Which statement is true about the graph of the equation y = x?
Answer:
that they both create different equations
Does anyone know where this worksheet is at on online with the answers ?
Answer:
I do not know if there is this worksheet online which comes with answers, but you can post questions here on brainly, and I can help you clarify them!!
:>>
I will give Brainliest!!
Answer:
5.8 h po salamat
salamat po
The number T of teams that have participated in a robot-building competition for high-school students over a recent period of time x(in years) can be modeled by T(x) = 17.155x^2 + 193.68x + 235.81, 0 ≤ x ≤ 6.
After how many years is the number of teams greater than 1000? Justify your answer.
Solving the quadratic equation, it is found that the number of teams is greater than 1000 after 3.1 years.
The number of teams after x years is given by:
[tex]T(x) = 17.155x^2 + 193.68x + 235.81[/tex]
Initially, there are T(0) = 236 teams. If will 1000 be when T(x) = 1000, thus:
[tex]17.155x^2 + 193.68x + 235.81 = 1000[/tex]
[tex]17.155x^2 + 193.68x - 764.19 = 0[/tex]
Which has coefficients [tex]a = 17.155, b = 193.68, c = -764.19[/tex], then:
[tex]\Delta = (193.68)^2 - 4(17.155)(-764.19) = 89950.66[/tex]
[tex]x_{1} = \frac{-193.68 + \sqrt{89950.66}}{2(17.155)} = 3.1[/tex]
[tex]x_{2} = \frac{-193.68 - \sqrt{89950.66}}{2(17.155)} = -14.3[/tex]
We want the positive root, so the number of teams is greater than 1000 after 3.1 years.
A similar problem is given at https://brainly.com/question/10489198
The ratio of girls to boys in a swimming club was 1:4. There were 10 girls. How many
boys were there in the club?
Answer:
40 boys
Step-by-step explanation:
The 1 part of the ratio refers to 10 girls and represents 1 part , then
4 parts = 4 × 10 = 40
There are 40 boys in the club