.Is the following proportion true? How do you know?
4/5 = 25/40
Answer:
4/ 5
is greater than
25 /40
Step-by-step explanation:
Find the least common denominator or LCM of the two denominators:
LCM of 5 and 40 is 40
For the 1st fraction, since 5 × 8 = 40,
4/ 5 = 4 × 8 5 × 8 = 32/ 40
Likewise, for the 2nd fraction, since 40 × 1 = 40,
25 /40 = 25 × 1 40 × 1 = 25/ 40
Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
32 /40 > 25 /40 or 4 /5 > 25 /40
Answer:
It is not true because if you multiply the denominator by 8, you will get 40 and if you also multiply the numerator by 8, you get 32 which is 32/40 which is not equal to 25/40.
A closed container has 3.06 ⋅ 10^23 atoms of a gas. Each atom of the gas weighs 1.67 ⋅ 10^−24 grams. Which of the following shows and explains the approximate total mass, in grams, of all the atoms of the gas in the container?
0.47 grams, because (3.06 + 1.67) ⋅ (1023 ⋅ 10−24) = 4.73 ⋅ 10−1
0.51 grams, because (3.06 ⋅ 1.67) ⋅(1023 ⋅ 10-24) = 5.1102 ⋅ 10-1
4.73 grams, because (3.06 + 1.67) ⋅ (1023 ⋅ 10−24) = 4.73
5.11 grams, because (3.06 ⋅ 1.67) ⋅ (1023 ⋅ 10−24) = 5.1102
Answer:
5.11grams
Step-by-step explanation:
EZ
Answer:
d
Step-by-step explanation:
How do i solve this question, please help and pls explain
a³x - x⁴ + a²x² - ax³
Answer:
[tex]\huge\boxed{x(a-x)(a+x)^2}[/tex]
Step-by-step explanation:
In order to factor this expression, our goal is to write the expression in a way that we can factor out a term.
With the expression [tex]a^3 x - x^4 + a^2 x^2 - ax^3[/tex], we need to note an exponent rule.
[tex]a^{b+c} = a^b a^c[/tex]
Step 1:We can use this to get each term of this expression to have a term of [tex]x[/tex] so we can factor it out.
Let's look at each term and get it so that we can factor out an x term.
[tex]a^3 x = x a^3[/tex] (Commutative Property)[tex]x^4 = xx^3[/tex] (Since [tex]x^3 \cdot x^1 = x^4[/tex])[tex]a^2 x^2 = a^2 \cdot xx[/tex] (Since [tex]x^2 = x \cdot x[/tex])[tex]ax^3 = a \cdot xx^2[/tex] (Since [tex]x^3 = x^2 \cdot x^1[/tex]With this, our equation becomes [tex](xa^3) - (xx^3) + (xxa^2) - (xx^2a)[/tex].
We now can factor out the common term x.
[tex]x(a^3 - x^3 + xa^2 - x^2a)[/tex]
Step 2:From here, we can now factor [tex]a^3 - x^3 + xa^2 - x^2 a[/tex]
Rearrange the equation: [tex]a^3 +xa^2 - x^3 - x^2a[/tex] Factor out [tex]a^2[/tex] from [tex]a^3 + xa^2[/tex] which comes out to be [tex]a^2(a+x)[/tex] Factor out [tex]-x^2[/tex] from [tex]-x^3 - x^2a[/tex] which comes out to be [tex]-x^2(x+a)[/tex] We now have [tex]a^2(a+x) - x^2(x+a)[/tex] Factor out the common term, [tex](a+x)[/tex], which comes out to be [tex](a+x)(a^2 - x^2)[/tex] Factor [tex]-x^2+a^2[/tex] into [tex](a+x)(a-x)[/tex] We now have [tex](a+x) (a+x) (a-x)[/tex], which is simplified to [tex](a-x)(a+x)^2[/tex] Finalizing:Since we have just factored [tex]a^3 - x^3 + xa^2 - x^2 a[/tex] and factored x out of [tex]a^3 x - x^4 + a^2 x^2 - ax^3[/tex] in the first couple of steps, we need to have it as a factorization of x.
[tex]x(a-x)(a+x)^2[/tex]
Hope this helped!
i need your help in this question please do answer
Answer:
d
Step-by-step explanation:
[tex]\frac{4 \times 10^{-3}}{10^{-11}} \\=4 \times 10^{-3} \times 10^{11}\\=4 \times 10^{-3+11}\\=4 \times 10^8[/tex]
When you encounter a part of a lesson or a math problem that makes you feel stuck or confused, what do you do? How do you help yourself get unstuck and back on track?
could u guys plz give me some ideas on what makes u feel stuck or confused? i already now what to do when i ned help.
Answer:
well when ever i feel stuck i just skip it and come back to it , one thing that makes me feel stuck is doing algebra
Step-by-step explanation:
What should the following equation be multiplied by in order to eliminate the fractions? {2y}{3} + {1}{3} = {y}{2} + {1}{6}
Answer:
Multiply it by 25 :)
A credit card company charges 22% interest fee on any charges not paid at the end of the month.. If the bill totals $450 for this month, how much interest would you have to be paid on the balance?
Why does it feel cooler at 90°F when the relative humidity is 30% compared to the same temperature and the relative humidity is 80%?
Because the drier air evaporates moisture off your skin more easily.
Because the lower humidity brings down the temperature.
There is no real difference because the temperature is the same.
Because there is less air movement at 80% humidity.
I need help. I will give brainliest to whoever gets this correct!
Answer:
The answer is D
193,560/5= 38712
193,560/6= 32260
Step-by-step explanation:
Hope this helps,
Please give brainliest if you like my answer.
Find the missing number
1. 6 + 10 − 2 = 11 + __
2. __ + 15 = 7 + 7
3. 4 − __ = 11 − 8
4. 9 + 5 = __ − 11
5. 7 − 8 + __ = 11 + 5
Answer:
1.3
2.-1
3.1
4.25
5.17
Step-by-step explanation:
maybe i messed up but pretty sure this is it
Can anyone help find the angles of 4 and 7
Answer:
angles 1 and 3 are 30
angles 5, 8, 10 and 12 are all 85
angle 11 is 95
angles 9 and 6 are 30
7 and 4 are 65
Step-by-step explanation:
angle 2 is congruent to 150, so 1 and 3 are: 360 degrees -150-150=x/2 to get the angles, then cos its an isosceles triangle due to the parallel lines, 9 and 6 are congruent to 1 and three, and 11 is 95 so you do 360 degrees-95-95=x/2 to get 85, then you take the 95 that is congruent to the angle group below it, and subtract 30 cos angles 9 and 4 are equivalent to the whole angle of 11, so yea u subtract 30 and you get 65, and you match up the congruent ones lol hope this helps ik its confusing
Solve the system of equations and give your answer as an ordered pair: (x,y). Do not use spaces in your answer. If the system has no solution, type "no solution". If the system has an infinite solutions, type "infinite solutions".
Answer:
(-6, 0)
General Formulas and Concepts:
Algebra I
Solving systems of equations by graphingStep-by-step explanation:
The solution set to the systems of equations is where the 2 lines intersect.
According to the graph, the 2 lines intersect at (-6, 0).
Therefore, our x-intercept for both graphs is our solution set to the systems of equations.
Answer:
It is (-6, 0)
help me please why is school hard i-
Answer:
12 1/4
Step-by-step explanation:
You would first add the fractions which will get you 5/4. then you will add the whole numbers which will get you 11. Then there is a extra number in 5/4 so you can tranfer it to the whole number which will become... 12 and then you will be left with 12 1/4
Will mark brainlist!
Answer:
18.75
Step-by-step explanation:
Answer:
(a)16.67
(b)76.8
Step-by-step explanation:
i need help aaaaaaaaa
Answer:
the correct answer is d
On a number line, what is the unit distance between –11 and 3?
Answer:
14
Step-by-step explanation:
if you take 14 - 11 it equals 3 so that is a for sure hard 14
Use the diagram below to determine the height of the flagpole.
Height of flagpole =
Scale factor from stick to flagpole =
Scale factor from flagpole to stick =
Answer:
7.5/2.5=h/4
2.5h=7.5×4
2.5h=30
h=30/2.5
h=12
scale factor=3
Answer:
7.5/2.5=h/4
2.5h=7.5×4
2.5h=30
h=30/2.5
h=12
scale factor=3
What goes up but never ever comes down
Answer:
age
Step-by-step explanation:
HELP FAST PLEASEE
Jordan invested some money in the bank for six years. The bank paid him 3.25% simple interest. Jordan received $1,170 in interest.
How much interest did Jordan earn in one year?
How much money did Jordan invest?
Answer:
the person above me is correct
Step-by-step explanation:
i got the same answer
$360 for one year
He invested $2160
if you need help or still dont understand dont be afraid to reach out!
JESUS LOVES YOU
The living room size on the blue print is 6 inches and the actual size is 10 feet. What is the scale factor?
Directions:
-write # inches = # feet
-be sure to simplify
Answer:The scale factor is 20.
Step-by-step explanation:
6 INCHES = 1/2 FOOT
10 FOOT TO 1/2 FOOT = 10/(1/2) = 20/1
The scale factor is 20 to 1
or, since your scale is 6 in to 10 ft
you may list the scale factor as 1 to 20
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The scale factor is 20 .
To understand more, check below explanation.
Scale factor:Given that,
Size of the room on blue print = 6 inches
Actual size of the room = 10 feet
As we know that,
1 feet = 12 inches
6 inches = 1/2 feet
We have to find scale factor from 1/2 feet to 10 feet.
[tex]\frac{10}{1/2}=\frac{10*2}{1} =20[/tex]
Hence, the scale factor is 20 .
Learn more about the scale factor here:
https://brainly.com/question/25722260
I have a question if u hay that is 123 IBS and get 12ibs of anything you can thing of and get it to maybe change how it feels how would you now that [this is my math homework]
What is the slope of the following points (2,-3) and (8,20)?
6/23
5/28
18/11
23/6
Answer:
The slope is 23/6.
(20-(-3))/(8-2)=23/6
Out of every 36 children, 9 are wearing a blue shirt.
Answer:
o cool so wut do u wanna have solved or is that the question?
Step-by-step explanation:
Answer:
noice
Step-by-step explanation:
9/36
3/12
1/4
not really sure what is being asked here but........
Hope this helps. Have a nice day.
Solve: 3(x- 2)= 18. X=.
PLEASE HELP!!!
Answer:
-12
Step-by-step explanation:
Samantha deposited $900 in a new account that will earn 5% simple interest. After 4 years, how much interest will she have earned?
what the Factor 14z - 21 can you plzzz help me
Answer: your answer should be
7 ( 2 − 3 )
Step-by-step explanation:
Answer:
sorry had too
Step-by-step explanation:
someone passed this to me) 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you
PLEASE HELP ME (WILL MARK BRANLIEST)
Answer:
49 can’t help
50: r^2
51: 21a
52: s^2*4s+3
Help please. I will give a Brainliest when i get the test answers back.
Answer:
1. $39.95
2. $63.72
3. Add
4. $10.93
5. i think its the same page
Step-by-step explanation:
Happy Holidays
please help urgent asap
Johnny went to the carnival. It cost $7 to get in and $2 for every ticket. Which equation would match this verbal description?
Answer:
y=7+2x
Step-by-step explanation:
Answer:
The answer is x=2x+7