Answer:
[tex]\boxed{\color{blue}\textsf{The weight of the Aluminium oxide is \textbf{900 grams . }}}[/tex]
Step-by-step explanation:
Here we are given 9 moles of [tex]\sf Al_2O_3[/tex] and we need to find its weight in grams . So we know the formula to find the number of moles as ,
[tex]\qquad\boxed{ \sf N_{(moles)}= \dfrac{Weight(in \ grams )}{Molecular \ weight }}[/tex]
Now the molecular mass of [tex]\sf Al_2O_3[/tex] is , equal to 26*2 + 16*3 = 52 + 48 = 100 g
Using the formula to find the Number of moles :-
[tex]\sf\implies \sf N_{(moles)}= \dfrac{Weight(in \ grams )}{Molecular \ weight } \\\\\sf\implies 9 =\dfrac{ W}{ 100g }\\\\\sf\implies W = 9 \times 100 g \\\\\sf\implies\boxed{\pink{\frak {Weight_{(Al_2O_3)}= 900 grams }}}[/tex]
Answer:
no way is these points omg i love it
is 5 in the solution set x +3≥8
Answer: Yes
Step-by-step explanation:
x>=8-3
x>=5
Based on the graph, what is the initial value of the linear relationship?
A coordinate plane is shown. A line passes through the y-axis at -2 and the x-axis at 3.
−2
0
two over three
3
Question 4(Multiple Choice Worth 4 points)
(05.05)Which scenario best matches the linear relationship expressed in the equation y = 32x + 80?
Joseph has $80 in his bank account and spends $32 each day.
Joseph has $80 in his bank account and earns $32 each day.
Joseph had $32 in his bank account and deposited another $80.
Joseph has $32 in his bank account and earns $80 each day.
Question 5(Multiple Choice Worth 4 points)
(05.05)David and Amanda are trying to figure out how long they can live off their $12,350 savings if they spend $240 each month. They have each created an equation.
David’s Equation Amanda’s Equation
y = 12,350 – (240x) y = 12,350 + (240x)
Which person has the correct equation to model this linear relationship?
Amanda’s equation is correct, because their spending will be multiplied by the number of months and then added to their savings.
Amanda’s equation is incorrect, because their spending will increase the amount of their savings.
David’s equation is correct, because their spending will be multiplied by the number of months and then subtracted from their savings.
David’s equation is incorrect, because their spending should be a fixed amount and should not be multiplied.
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FDK161.10
Answer:
(A) -2
Step-by-step explanation:
Mr. Kelner buys a $300 suit that is marked down by 20%. How much does Mr. Kelner save?
Answer:
Mr. Kelner is going to save $60
Step-by-step explanation:
Answer:
He will save 60$
Step-by-step explanation:
Amrita is 8 years elder to her brother Aman. If the ratio of their ages is 7 : 3, find their present ages?
Answer:
Amrita = 14 years old
Aman = 6 years old
Step-by-step explanation:
Find out the difference of the units.
7 - 3 = 4
Amrita is 4 units/8 years older than Aman.
4 units = 8
1 unit = 8 ÷ 4 = 2
Amrita is 7 units and her brother is 3 units.
Amrita = 7 units x 2 = 14
Aman = 3 units x 2 = 6
200% of d is 11 what is D
If 200 percent is 11 then 100 is 11/2 which is exactly 5.5.
Answer:
5.5
Step-by-step explanation:
200 percent * 5.5 =
(200 divided by 100) * 5.5 =
(200 * 5.5) divided by 100 =
1100 divided by 100 = 11
S. At Food Lion, 28 of every 35 jars of peanut butter on the shelves are creamy peanut butter. What percent of the jars of peanut butter are not creamy?
Answer:
7/35 or 20% of the jars are not creamy
Answer:
20%
Step-by-step explanation:
To find the percent of NOT creamy:
35(total peanut butter) - 28(creamy) = 7
Question now is: 7 is what % of 35?
Formula = a(part) = p(percent)*w(whole)
p = a/w
7/35 = 0.2
0.2 is a decimal so multiply by 100 to get 20%
The answer should be 20% so I hope this helps!
What is the solution set of the quadratic inequality x^2-5<0
Answer:
Resuelve para x
−√5<x<√5-5<x<5
Marisela added 7 seashells to her collection.
She now has 68 seashells. Write and solve an
equation to find the number of seashells
she originally had.
Answer:yea
Step-by-step explanation:
Put
Answer:
68-7
Step-by-step explanation:
I think that's what it's asking for....
3.8 times something equals 24
Answer:
6.32
Step-by-step explanation:
3.8x=24
x = 6.32
Answer:
its 6.32
Step-by-step explanation:
6.32x3.8= 24.016
6.31x3.8= 23.978
Help me out please please an thank you
Guyssss I need your help for this question ASAPpp
[tex] \sqrt{64} [/tex]
Input into your calculator to verify
Giovanni can read 250 words per minute. If there are approximately 400 words on a page, about how many pages can he read in 2 hours? Round your answer to the nearest whole number.
Dude I need help this is due in an hour!!!
Answer:
75
Step-by-step explanation:
He can read = 250w/m
2 hours = 60 x 2 = 120 min
Number of words he can read in 2 hours = 250 x 120 = 30,000
No: of words in each page = 400
No: of pages he reads = 30,000/ 400 = 75
This is wht i got .... but i didnt get decimal ... so can u tell me if it is right?
Answer:
75
Step-by-step explanation:
heeeelp pls i beg of you
Answer: 41.6%
Step-by-step explanation:
You divide the amount of trees 40ft or taller (10) by the total number of trees (24) so 10/24 = .416 (41.6%)
What is the area of the triangle?
4
2
units?
The area of the triangle whose base is 4 unit and height is 2 unit is 4 square units .
To calculate the area of a triangle, we multiply the base by the height and divide the result by 2 .
Base of triangle = 4 units
Height of triangle = 2 units
Area of triangle = ( Base of triangle * Height of triangle ) / 2
Area of triangle = ( 4 * 2 ) / 2
Area of triangle = 8 / 2
Area of triangle = 4 square units
Therefore, the area of the triangle is 4 square units .
To know more about area click here :
https://brainly.com/question/19305981
#SPJ2
Hi can y’all help me pls thanks :)
Answer:
https://youtu.be/ub82Xb1C8os
Step-by-step explanation:
all the answers is in this video also cant believe they banned the word brüh gàrbage app
What is degree of the polynomial 5x^2+7x^3-2x
Answer:
3
Step-by-step explanation:
Since the highest power of the equation is 3
Cindy has $25 saved and earns $12 per week for walking dogs. Mindy has $55 saved and earns $7 per week for watering plants. Cindy and Mindy save all of the money they earn and do not spend any of their savings. After how many weeks will they have the same amount saved? How much money will they have saved?
Answer:
Step-by-step explanation:
Help!!!!!!!!!! TYSM if you answer this!!!!!!!!!!!
Answer:
10p+5
Step-by-step explanation:
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
32.55555555555556
Step-by-step explanation:
hope it helps
John lays tile for a living. While trying to create the perfect design for his client, he then drew this pattern containing two right angles and an isosceles triangle.
For the triangles to fit together perfectly, John must determine the measure of angles 1, 2, and 3.
Answer:
Angle 1= 58
Angle 2= 64
Angle 3= 58
Step-by-step explanation:
The two smaller triangles are each right triangles and every triangle equals 180 so add 32 degrees and 90 degrees ( 90+32=122) and subtract that from 180 and you get angles 1 and 3 from your isosceles triangle
then you add both angles 1 and 3 from your isosceles triangle which are 58 degrees each (58+58=116) and subtract that from 180 (180-116=64) and you get angle 2
Answer:
angle 1 = 32
angle 2 = 116
angle 3 = 32
Step-by-step explanation:
PLEASEEEE HELPPPP ASAPPPP
Answer:
20480
Step-by-step explanation:
math
At Cindy's birthday each guest will get one-third of a medium sized pizza. There will be 12 people at the party, including Cindy. How many pizza's does her mom need? awnser is 6
Answer: 4 pizzas
Step-by-step explanation:
There are to be 12 people at the party.
Each person is expected to take 1/3 of a pizza.
The total number of pizza needed is therefore:
= No. of people * quantity of pizza
= 12 * 1/3
= 4 pizzas
Note: Answer would be 6 if each guest wanted 1/2 of a pizza.
Please help me with questions 1 and 2
I don't get it my teacher tried to help me but I still don't get it
Answer:
The mean would be 82
Step-by-step explanation:
To find the mean you add up all the numbers.
[tex]68 + 73 + 95 + 81 + 85 + 90 + 77 + 84 + 75 + 92 = 820[/tex]
Then you divide that be the amount of numbers are given to you.
[tex]820 \div 10 = 82[/tex]
And that is how you find the mean.
Sorry if it is wrong I'm tired.
m
. When a number is multiplied by 4 before
subtracting from 68, the result obtained is
the same as three times the sum of the number
and 4. Find the number.
Answer:
14
Step-by-step explanation:
if you by multiply 4 by 3 because the sum of three times the sum of the number to get 12
then we multiply 4 by 14 to get 56
then we subtract 68 by 56 to get 12 that is the same number we got from multiplying the 4 and 3 to get 12
so the answer is 14
Last year, the number of students enrolled in the school was 672. If this number increases by 12% the next year, how many students will there be?
What an amount is increased by a percent, add the percent change to 100. 100 + 12 = 112. Use the proportion \frac{}{100}=\frac{is}{of} to get \frac{112}{100}=\frac{x}{100}[tex]\frac{112}{100}=\frac{x}{100}[/tex].
Answer:
Step-by-step explanation:
672 x 12% = 80.64
80.64 is going to be added...
672 + 80.64 = 752.64 ≈ 753 students...
hope this works...
Please help illl give brainliest and thanks :)
Answer:
28 points per game
42 miles per gallon
$2.99 per bag
Step-by-step explanation:
140 points in 5 games. To find the amount of points in one game, we divide the total points by the total games: 140/5=28
504 miles with 12 gallons. To find the amount of miles with one gallon, we divide the total miles by the total gallons: 504/12=42
$8.97 for 3 bags. To find the amount of dollars for one bag, we divide the total amount of dollars by the total bags: 8.97/3=2.99
Write a linear function f with the values f (-1) = 5 and f (3) = 4.
A function is f(x) =
Answer:
Step-by-step explanation:
Since we have points (-1,5) and (3,4) we can find the slope m of y=mx+b
m=(y2-y1)/(x2-d1)=(5-4)/(-1-3)=1/-4=-1/4 so we have
y=-x/4+b, using point (3,4) we can solve for the y intercept, b.
4=-3/4+b, b=19/4, so the line is
y=(-x+19)/4
What is 8 x 8 x 8 in exponential form
Answer:
10^3
Step-by-step explanation:
103 is read as “10 to the third power” or “10 cubed.” It means 10 • 10 • 10, or 1,000.
82 is read as “8 to the second power” or “8 squared.” It means 8 • 8, or 64.
54 is read as “5 to the fourth power.” It means 5 • 5 • 5 • 5, or 625.
b5 is read as “ b to the fifth power.” It means b • b • b • b • b. Its value will depend on the value of b.
The exponent applies only to the number that it is next to. So in the expression xy4, only the y is affected by the 4. xy4 means x • y • y • y • y.
If the exponential expression is negative, such as −34, it means –(3 • 3 • 3 • 3) or −81.
If −3 is to be the base, it must be written as (−3)4, which means −3 • −3 • −3 • −3, or 81.
Likewise, (−x)4 = (−x) • (−x) • (−x) • (−x) = x4, while −x4 = –(x • x • x • x).
Feb 15, 3:31:19 PM
Watch help video
A new car is purchased for 17900 dollars. The value of the car depreciates at 12.25%
per year. What will the value of the car be, to the nearest cent, after 10 years?
Y≈4845.34 answer
Answer:
485.4! <77777777777777