Answer:
I think it's 6
Dhdneoemd
Answer:
6
Step-by-step explanation:
[tex]\frac{1}{3}[/tex] of 12 = [tex]\frac{12}{3}[/tex] = 4
let the number required be n , then
[tex]\frac{2}{3}[/tex] n = 4 ( multiply both sides by 3 to clear the fraction
2n = 12 ( divide both sides by 2 )
n = 6
Thus
[tex]\frac{1}{3}[/tex] of 12 = [tex]\frac{2}{3}[/tex] of 6
In 2016, the cost of 2 ounces of pure gold was $2,640. Complete the double number line to show the cost for 1, 3, and 4 ounces of gold.
Answer:
1 would be 1320
3 would be 3960
4 would be 5280
Step-by-step explanation:
The cost of 1, 3 and 4 ounces of gold in 2016 was $1,320, $3,960 and $5,280 respectively.
Cost of 2 ounces of gold in 2016 = $2,640
Cost of 1 ounce of gold in 2016 = Cost of 2 ounces of gold in 2016 ÷ 2
= $2,640 ÷ 2
= $1,320
Cost of 3 ounces of gold in 2016 = Cost of 1 ounce of gold in 2016 × 3
= $1,320 × 3
= $3,960
Cost of 4 ounces of gold in 2016 = Cost of 1 ounce of gold in 2016 × 4
= $1320 × 4
= $5,280
Therefore, the cost of 1, 3 and 4 ounces of gold in 2016 are $1,320, $3,960 and $5,280 respectively.
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Jason solved the following equation to find the value for x.
–8.5x – 3.5x = –78
x = 6.5
Describe how Jason can check his answer.
Sample answer:
Substitute the value for x into the original equation. Simplify using order of operations. If the statement is true, Jason’s solution for x is correct. If the statement is false, Jason’s solution for x is incorrect.Step-by-step explanation: (My answer)
1) Subtract 8.5 and 3.5, that equals 12.
[tex]8.5x - 3.5x = -78[/tex]
2) Multiply 78 and 12, that equals 6.5 .
[tex]\frac{12x}{12} = \frac{78}{12}[/tex]
3) Check your answer.
[tex]-8.5 (6.5) -3.5 (6.5) = -78[/tex]
Multiply 8.5 and 6.5, that equals 55.25. Next, multiply 3.5 and 6.5, that equals 22.75.Finally, you will need to subtract your answers. Subtract both 55.25 and 22.75.Once you've done that, the answer you should get is 78.
78 is equal to 78, that is your final answer and it is correct.
can someone please answer this asap thank you !
At a soccer match, for every goal team A scored, team B scored 3 goals. The ratio of the number of goals scored by team A to the number of goals scored by team B is
Consider the table. -4 -2 0 2 4 9 6 0 3 Determine the slope of the linear function described by the table.
Answer:
Let's see what to do buddy...
Step-by-step explanation:
_________________________________
Step (1)
First we need two points of the table :
I choose a = ( 0 , 3 ) and b = ( 2 , 0 ) .
_________________________________
Step (2)
To find the slope of linear functions using two points, we use the following equation :
[tex]slope = \frac{y(b) - y(a)}{x(b) - x(a)} \\ [/tex]
Where a and b are two points of the function.
_________________________________
Step (3)
Now just need to put the coordinates of the points which we chose.
a = ( 0 , 3 ) °•°•°•°•°•°•° b = ( 2 , 0 )
[tex]slope = \frac{0 - 3}{2 - 0} \\ [/tex]
[tex]slope = - \frac{3}{2} \\ [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
my math asks what is 30÷50?
Find the inverse function of
y =x-5/6
[tex]f(x) = y = x - \frac{5}{6} \\ [/tex]
Subtract the sides of the equation plus 5/6
[tex]y + \frac{5}{6} = x \\ [/tex]
So ;
[tex] {f}^{ - 1}(x) = x + \frac{5}{6} \\ [/tex]
_________________________________
And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
Find the slope of the line that passes through:
(-4, 7) and (-6, - 4)
Answer:
[tex] \huge{ \bold{ \boxed{ \tt{ \frac{11}{2} }}}}[/tex]
Step-by-step explanation:
[tex] \text{Let \: the \: points \: be \: A\: and \: B} [/tex]
[tex] \text{A \: ( - 4 \:, 7 \: )} \longrightarrow \: \text{(x1 \:, y1)}[/tex]
[tex] \text{B \: ( \: - 6 \:, - 4 \: )} \longrightarrow \text{(x2 \:, y2)}[/tex]
[tex] \underline{ \text{Finding \: the \: slope} }: [/tex]
[tex] \boxed{ \sf{slope = \frac{y2 - y1}{x2 - x1} }}[/tex]
[tex]↣ \: \sf{slope = \frac{ - 4 - 7}{ - 6 - ( - 4)} }[/tex]
[tex] \underline{ \text{Remember}} : [/tex]
[tex] \text{ \: ( + ) * ( + ) = ( + )}[/tex][tex] \text{( + ) \: * \: ( - ) = ( - )}[/tex][tex] \text{( - ) \: * \: ( - ) = ( + )}[/tex][tex] \text{( - ) \: * \: ( + ) = ( - )}[/tex][tex] \sf{↣ \: slope \: = \: \frac{ - 4 - 7}{ - 6 + 4}} [/tex]
[tex] \underline{ \text{Remember}}: [/tex]
The positive integers are always added but posses the positive ( + ) sign.The negative integers always added but posses the negative ( - ) sign.The negative and positive integers are always subtracted but posses the sign of the bigger integer.[tex] \sf{↣ \: slope = \frac{ - 11}{ - 2} }[/tex]
[tex] \sf{↣ \: slope \: = \frac{ \cancel{ - } \: 11}{ \cancel{ - } \: 2} }[/tex]
[tex] \sf{↣ \: slope \: = \frac{11}{2} }[/tex]
[tex] \text{Hope \: I \: helped!}[/tex]
[tex] \text{Best \: regards!}[/tex]
~[tex] \text{TheAnimeGirl}[/tex]
Geometry On the number line point B is between points A and C. The distance between points a and b is 1/3 of AC. Where is point B located?
Answer:
hfbhlbghulbfrhbuf
Step-by-step explanation:
hbbfhhbfhfhlflb frf
A biker travels the 120 mi from New York , NY to Wilmington, DE in 8 hours. A bus, a truck, and a rider on a horse take the same route as the biker. At what speed does each of them travel if it takes them 2 hours, 2.5 hours, and 18.75 hours respectively to reach Wilmington? Do the speed and the time vary directly or inversely proportional when the same distance is traveled? Explain why.
Answer:
First, remember the relation:
Distance = Speed*Time.
We know that the distance is 120mi.
A) For the biker we know that:
Time = 8hours.
Speed = Distance/Time = 120mi/8h = 15 mi/h.
B) For the bus we know that:
Time = 2 hours.
Speed = Distance/Time = 120mi/2h = 60 mi/h.
C) For the truck we know that:
Time = 2.5 hours.
Speed = Distance/Time = 120mi/2.5h = 48 mi/h.
D) For the rider on a horse we know that:
Time = 18.75 hours.
Speed = Distance/Time = 120mi/18.75h = 6.4 mi/h.
E) The equation for the speed is:
Speed = Distance/Time.
You can see that time is in the denominator, this means that if for a fixed distance, the time increases, then the denominator increases, which would imply that the speed decreases.
Then the speed is inversely proportional to the time when the distance is fixed.
whats {(5-8)+5}+10/2-20/5
Answer:
{(5-8)+5}+10/2-20/5= 3
Step-by-step explanation:
{(5-8)+5}+10/2-20/5
PEMDAS
Parentheses first
5-8 = -3
( -3 + 5 ) + 10/2 - 20/5
-3 + 5 = 2
2 + 10/2 - 20/5
10/2 = 5
2 + 5 - 20/5
2 + 5 = 7
20/5 = 4
7 - 4 = 3
The ratio of books
to magazines in the
children's section at the
library is 5-2. If there
are 225 books, calculate
the number of
magazines.
50 magazines
because ratio is division and 225/5 is 25 and you multiply the 2 by 25 and you get 50
There are 64 magazines in the library.
What is mean by Ratio?A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y. Where, x and y are individual amount of two quantities. And, Total quantity gives after combine as x + y.
We have to given that;
The ratio of books to magazines in the children's section at the library is 5: 2.
Let number of books = 5x
And, Number of magazines = 2x
Here, There are 225 books in the library.
Hence, We can formulate;
⇒ 5x + 2x = 225
⇒ 7x = 225
⇒ x = 32
Hence, Number of magazines = 2x
= 2 × 32
= 64
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x - 4 = -8 + x I need help on my homework please help!
Answer:
the answer is no solution
Step-by-step explanation:
if you need to know how i got it just comment on my answer! :)
Answer: No Solution
Step-by-step explanation: Lets say X is 8. -8+8 is 0, and 8-4 is 4. Continue to replace X with multiply different numbers to try and solve the equation, but the solution will always be 4 apart, so no solution.
which one is the unit of force
A.Joules
B. Newton
C. Celsius
D. Kelvin
Answer:
Newtons
Step-by-step explanation:
Joules measure electrical power and celcius and Kelvin measures temperature.
On-the-Go Phone Company has two monthly plans for their customers. The EZ Pay Plan costs $0.20 per minute. The 40 to Go Plan costs $45 per month plus $0.15 per minute. Write an expression that represents the monthly bill for x minutes on the EZ Pay Plan.
Answer:hmm
Step-by-step explanation:
Simplify the following expressions:
x−(x−14)
thanks this should be easy I'm just working on other problems right now and don't want to deal with it
Answer:
x-(x-14)
Distribute negative one by everything in the parentheses
and you will get x=14
Step-by-step explanation:
If tan(x)=3/5 and sin(x)>0, what is sin(2x)?
With STEPS PLEASE AND NO TROLLING.
i edited the answer. hope it helps. if it isn't ryt tell me plz
Answer:
sin2x = [tex]\frac{30}{34}[/tex]
Step-by-step explanation:
Given
tanx = [tex]\frac{3}{5}[/tex] = [tex]\frac{opposite}{adjacent}[/tex]
This is a right triangle with legs 3 and 5
Let the hypotenuse be h , then using Pythagoras' identity
h² = 3² + 5² = 9 + 25 = 34 ( take the square root of both sides )
h = [tex]\sqrt{34}[/tex]
Thus
sinx = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{3}{\sqrt{34} }[/tex]
cosx = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{5}{\sqrt{34} }[/tex]
Hence
sin2x = 2sinxcosx = 2 × [tex]\frac{3}{\sqrt{34} }[/tex] × [tex]\frac{5}{\sqrt{34} }[/tex] = [tex]\frac{2(3)(5)}{\sqrt{34}(\sqrt{34}) }[/tex] = [tex]\frac{30}{34}[/tex]
Please and thank you
Answer:
C. The Function is positive when x<0 and when x>0.
Hope this helps! :)
******Absolute Value******
l-7al=28
Answer:
a = 4
Step-by-step explanation:
28/ 7 = 4
l7al= 28
7x4 = 28
Absolute Value: the magnitude of a real number without regard to its sign.
plz mark brainliest
Answer:
a=-4
Step-by-step explanation:
-7a=28
7a/7=-28/7
a=-4
How do you change -3 in x^-3 to be positive?
Answer:
x^-3=1/x^3
This is how we do it.
Answer:
Take the reciprocal. 1/x^3
Step-by-step explanation:
When you take the reciprocal of a number or a variable, the exponent changes sign.
The bottom of a pylon is 3 1/2 yards below
the ground. The top of the pylon is 2 1/2 yards
above the ground. How tall is the pylon?
Answer:
6 yards
Step-by-step explanation:
The pylon is 6 yards tall.
What the types of fractions ?There are mainly two types of fractions proper fraction and improper fraction.In proper fraction numerator is smaller than the denominator and in improper fraction denominator is smaller than the numerator.
According to the given question
A pylon has some part of it below the ground and some part is above the ground and we have to find the total length of it.
Given [tex]\whole{3}\frac{1}{2}[/tex] yards is below the ground and [tex]\whole2\frac{1}{2}[/tex] yards above the ground.
∴Total length of the pylon is (7/2 + 5/2) yards.
= 12/2 yards.
= 6 yards.
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the lines represented by the equations 25y-10x=200 and 5y+2x=40 are
Answer:
The slope
Step-by-step explanation:
(WILL MARK AS BRAINLIEST) How do you know if a set of information shows a proportional relationship? Select ALL that apply.
The ratio of boys to girls in a class is 3:4. There are 35 students in the class. How many students are girls?
Answer:
20 students are girls. (15 are boys)
Step-by-step explanation:
if the ratio is 3:4 and the total students is 35, you can make the following equation:
3x + 4x = 35
7x = 35
x = 5
then, multiply x by 4.
5*4 = 20.
20 students are girls. (15 are boys.)
sorry if this isn't well explained. hopefully I still helped!
Can someone please explain these to me??
Answer:
x = -1
y = 5
Step-by-step explanation:
When a graph has a line going straight up and down it means the x value of the line is the same it never changes
Example: (-1, 5) (-1, 2) (-1, -3)
When a graph has a line going straight left to right it means the y value never changes
Example: (5, 5) (-10, 5) (8, 5)
Hello again! I need help with this question!
Answer:
(f o g) = -5x+22
Step-by-step explanation:
f o g basically means f(g(x))
So:
f(g(x)) = -5(x-4)+2
f(g(x)) = -5x+20+2
f(g(x)) = -5x+22
Therefore: (f o g) = -5x+22
This is called function composition. Basically, the output of g(x) goes into the input of f(x).
Answer:
its the 3rd option
Step-by-step explanation:
its right
HELP NEEDED!!!!
Liliana and Marcus are playing a word game. Liliana spells a word incorrectly and loses 18 points. Then Marcus spells a word correctly and has the opposite score. Which is the correct way to represent "the opposite of Liliana's score is equal to Marcus's score"?
A)-18 = 18
B)-(-18) =-18
C)-(18)=-18
D)-(-18)=18
(the answer is not C)
Answer:
D
Step-by-step explanation:
Wkx2di2jd1nd1do jf2kd2ifj2dkdu2dj2d
Answer:
d
Step-by-step explanation:
Ross said that if (x² + a)(x2 + b) = O means that (x2 + a) = 0 or (x2 + b) = 0, then(x+
a)(x2 + b) = 2 means that (x2 + a) = 2 or (x? b) = 2. Do you agree with Ross? Explain
why or why not.
9514 1404 393
Answer:
no; 2 has many factors besides 2
Step-by-step explanation:
The zero product rule says the only way a product may have a value of zero is if one or more factors is zero. That is why one of the factors of ...
(x^2 +a)(x^2 +b) = 0
must have a value of 0.
__
The same cannot be said of 2. We might have (1/2)(4) = 2, for instance, in which neither factor is 2. That a product is 2 is not a requirement that one of the factors be 2.
Find the measure of this missing angle?
Answer:
B = 61°
C = 61°
Step-by-step explanation:
The sum of all the angles is 360.
When the angles are formed with straight lines like shown the angles back to back are equivalent or equal.
So you can take 119 and add it by itself to get 238.
You then get 360 and subtract 238 which gets you 122.
Then divide 122 by two and you have the answer for both b and c which is 61.
x2 - 14x + 47 = 0
man how df you do dis
Answer:
-2.9375
Step-by-step explanation:
2x-14x+47=0
16x+47=0
16x=-47
x=-2.9375
Answer:
x=7+√ 2 or x=7-√ 2
Step-by-step explanation:
x^2-14x+47=0
Completing the square,
x^2-14x+49-2=0
x^2-14x+49=2
x^2-7x-7x+49=2
x(x-7)-7(x-7)=2
(x-7)^2=2
x-7=√ 2 or x-7=-√ 2
x=7+√ 2 or x=7-√ 2