an element with mass 630 grams decays by 18.8% per minute. How much of the element is remaining after 7 minutes, to the nearest 10th of a gram?
Answer:
Step-by-step explanation:
Total Depreciation: 60.24%
Total depreciation: $9,759.50
Car Value after 6 years: $6,440.50
The element is remaining 146.6 grams after 7 minutes, to the nearest 10th of a gram.
What is exponential decay?An exponential function's curve is created by a pattern of data called exponential decay, which exhibits higher decreases over time.
The exponential decay function:
Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.
Given:
An element with mass 630 grams decays by 18.8% per minute.
That means, 18.8% = 0.188
Here, we will use the exponential decay function.
Aₙ = A₀(1-r)ˣ, where y = Final amount, A₀ = Initial amount, r = Rate of decay in decimal form, x = Time.
Here,
A₀ = 630 grams
r = 0.188
x = 7 minutes
Substituting the values to the formula,
A₇ = 630(1-0.188)⁷
A₇ = 630(0.812)⁷
A₇ = 630(0.23275134787)
A₇ = 146.633
A₇ = 146.6 grams.
Therefore, element is remaining 146.6 grams.
To learn more about the exponential decay;
https://brainly.com/question/14344314
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use the grouping method to factor the polynomial below completely 3x^3+6x^2+5x+10
A. (3x^2+5)(x+2)
B. (3x^2+2)(x+2)
C. (3x^2+5)(x+5)
D. (3x^2+2)(x+5)
Find the selling price for each item given the cost and
the percent of markup or discount.
36. tennis shoes: $85; 24% discount
Answer:
$64.60
Step-by-step explanation: I believe this is right if not sorry. The first step is to multiply $85 by .24 and that is $20.40. Then take $20.40 from $85 (85-20.40) which is $64.60
PLZ PLZ PLZ PLZ HELP WILL GIVE BRAINLIST IF CORRECT!
Answer:
Here you go: 249.9776
Step-by-step explanation: Now all you need to do is round it :)
Answer:
88.96% of 281=88.26/100×281=248.0106=248
A gardener has a container with 6 3/5 ounces of liquid plant fertilizer. The gardener uses 2 1/2 ounces on a flower garden. How many ounces of liquid plant fertilizer are left? *
Answer:
4 1/10 ounces of Liquid plant fertilizer left
Step-by-step explanation:
Total quantity of Liquid plant fertilizer=6 3/5 ounces
Quantity used up on a flower garden=2 1/2 ounces
Quantity of liquid plant fertilizer are left=Total quantity of Liquid plant fertilizer -Quantity used up on a flower garden
6 3/5 ounces -2 1/2 ounces( subtract whole number from whole number and fraction from fraction)
6-2 3/5 - 1/2
4 (6-5) / 10
4 1/10 ounces of Liquid plant fertilizer left
Admission into an amusement park for 4 children
and 2 adults is $116.90. For 6 children and 3 adults,
the admission is $175.35. Assuming a different price
for children and adults, what is the price of the child's
ticket and the price of the adult ticket?
Answer:
A child ticket costs $16.50 and an adult ticket costs $25.45.
A floor 3.2m long and 2.8 m wide is to be covered with square shaped tiles of length 10cm. Find the coast of flooring if the coast tiles is Rs 150 per 100 tile.
Answer:
1344
Step-by-step explanation:
100cm = 1 m
Convert the dimensions of the floor to cm = Area of a rectangle = length x breadth = 320 x 280 = 89,600m²
Area of a square = length² = 10cm² = 100cm²
Number of tiles that would be needed = area of floor / area of square
89,600cm² / 100cm² = 896
Cost of one tile = rs 150 / 100 = 1.5
Cost of 896 tiles = 1.5 x 896 = 1344
ASAP!!! I need help with number 9!!
Answer:
The amount of each ingredient Alicia uses to make oat biscuits are;
440 g of oat, 220 g of butter, and 110 g of syrup
Step-by-step explanation:
9. The question parameters are
The ingredients with which Alicia makes oat biscuit = Syrup, butter, and oat
The ratio of the ingredients with which Alicia makes oat biscuit = 1 : 2 : 4
The quantity of syrup Alicia has = Large amount (Plenty)
The amount of butter she has = 250 g
The amount of oat she has = 440 g
From the given ratio, we have;
The mass of oat Alicia uses is 2 times the mass of butter she uses and 4 times the mass of syrup she uses
When Alicia uses the 440 g of oat, we have;
The amount of butter she will use = 440 g/2 = 220 g
The amount of syrup she will use = 440 g/4 = 110 g
Therefore, Alicia uses the 440 g of oat, 220 g of butter, and 110 g of syrup
How do you solve 6y/2y +2/6x^2y
Answer:
i think 6y=21
Step-by-step explanation:
carl bought a circular cake and ate 1/5 of it on monday and 0.25 on Tuesday what percent of the cake has carl not eaten yet
0.45 or %45 is left of the circular cake.
Hope this helps; have a great day!
Write Expresion as an Exponent
aaabbccccc
Answer:
a³b²c⁵
Step-by-step explanation:
simply count them
The base (b) of the triangle is
y feet.
The height (h) of the triangle is
feet
The area of the triangle is
square feet
Answer:
10 15 75
Step-by-step explanation:
19) Kyle has $600 in a savings account at the beginning of the summer. He wants to have at least $300 in his account by the end of the summer. Kyle withdraws $20 each week.
Write an inequality that represents Kyle's situation.
How many weeks can Kyle withdraw from his account? withdraw money
The crispy rice treats have cooled, Mrs. Williams cuts them into 30 equal pieces. She gives two-fifths of the treats to her son and takes the rest to school. How many treats will Mrs. Williams take to school?
Answer:
18 pieces
Step-by-step explanation:
divide 30 by 5
you'll get 6
so one-fifth is equivalent to 6 of the pieces
multiply 6 by 2
you'll have 2 so two-fifths is equal to 12 pieces of rice crispy treats
subtract 12 from 30
30 - 12 = 18
So she took 18 pieces to school.
Solve for angle F ?
I need help please
Answer:
F = 31
Step-by-step explanation:
70+50=125
180-125=55
the last angle of the triangle is 55.
The last angle of the triangle and the equation make up to 180 so.
55+4f+1=180
F=31
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
60 degrees
Step-by-step explanation:
A triangle is 180 degrees and there is already 40 and 80 degrees.
So... 180-80-40=60 degrees.
Hope this helps :D
Which polynomials are prime? Check all that apply.
Answer:
1. [tex]15x^2 + 10x -9x + 7[/tex]
4. [tex]8x^3 + 20x^2 + 3x + 12[/tex]
5. [tex]11x^4 + 4x^2 -6x^2-16[/tex]
Step-by-step explanation: I did this assignment on edge.
112 DECIMALS Rounding decimals Round 0.799 to the nearest hundredth. 0 Х ?
Answer:
0.799 to the nearest hundredth is 0.80
Hope this helps!
_______ :21=5:7
10:100=_______:200
12:28=_________:7
48:_________=8:9
36:75=12:________
56:120=_______:8
2:4=________:2
45:________=15:20
_______:65=9:13
180:210=_______:35
63:_______=7:8
48:72=4:_______
________:100=6:10
36:108=6:________
3:________=1:3
_________:180=8:20
81:126=9:_______
________:33=2:3
Answer:
Step-by-step explanation:
1) 10:18=5:9
2) 15:21=5:7
3) 10:100=20:200
4) 12:28=3:7
5) 48:54=8:9
6) 36:75=12:25
7) 56:120=3.733:8
8) 18:24=6:8
9) 2:4=1:2
10) 45:60=15:20
11) 45:65=9:13
12) 180:210=30:35
13) 63:72=7:8
14) 48:72=4:6
15) 60:100=6:10
16) 36:108=6:18
17) 3:9=1:3
18) 72:180=8:20
19) 81:126=9:14
20) 22:33=2:3
Answer:
1. 15 :21=5:7
2. 10:100=20:200
3. 12:28=3:7
4. 48:54=8:9
5. 36:75=12:25
6. 56:120=3.73..:8
7. 2:4=1:2
8. 45:60=15:20
9. 45:65=9:13
10. 180:210=30:35
11. 63:72=7:8
12. 48:72=4:6
13. 60:100=6:10
14. 36:108=6:18
15. 3:9=1:3
16. 72:180=8:20
17. 81:126=9:14
18. 22:33=2:3
classify this triangle
Answer:
Right, isosceles
Step-by-step explanation:
Right: it has a 90° angle
Isosceles: two sides of equal lengths
Solve the inequality and graph the solution on the line provided. 3 − 7 x <−53
Answer:
x>8
Step-by-step explanation:
3-7x<-53
-7x<-56
x>8
What is the range of the function graphed below?
Answer:
(-∞, 2)Step-by-step explanation:
As we see on the graph, the range is:
(-∞, 2) ory < 2
[tex] (\frac{1}{15} - \frac{1}{20} )[/tex]
Rewrite the equation by completing the square.
6 - 16 = 0
(x +
Answer:
6-16=10x here is you answer
can u help me solve this question using radical form
9514 1404 393
Answer:
x = 4√15y = 4√5Step-by-step explanation:
The ratios of side lengths in the given triangle are ...
1 : √3 : 2 = shortest : middle length : longest
We can make the longest side match the given value if we multiply these numbers by 4√5
y : x : 8√5 = 1(4√5) : √3(4√5) : 2(4√5) = 4√5 : 4√15 : 8√5
Then we have ...
x = 4√15
y = 4√5
Two shops, Lidal and Oldi, sell the same brand of toilet rolls but with different package sizes. Calculate the price per 36 rolls for each shop.
Answer:
The answer is below
Step-by-step explanation:
At Lidal shop, 4 toilet rolls is sold for £2.40. Therefore the cost of each toilet roll is given as:
Cost of each roll at Lidal = £2.40 / 4 = £0.60 per roll
Cost of 36 rolls = cost for each roll * 36 rolls = £0.60 per roll * 36 rolls = £21.6
At Oldi shop, 9 toilet rolls is sold for £4.68. Therefore the cost of each toilet roll is given as:
Cost of each roll at Oldi = £4.68 / 9 = £0.52 per roll
Cost of 36 rolls = cost for each roll * 36 rolls = £0.52 per roll * 36 rolls = £18.72
HELP!
What is the missing term? What is the rule? 8 9/10, 7 7/10, 6 1/2 , _________
Answer:
5 3/10
Step-by-step explanation:
You subtract 1 1/5 from the number (n).
(In equation) x = n - 1 1/5
help me whit this please
Answer:
(5,-3) *red* i cant tell wht it says very well
Step-by-step explanation:
30 POINTS AND BRAINLIEST TO FIRST RIGHT ANSWER
Answer:
Look ate the image.
Step-by-step explanation:
I'll give brainliest.
Answer
*edit* oh wow im srry
Step-by-step explanation:
Answer:
y = 5x + 4 (if the question is asking for an equation that is)
Step-by-step explanation:
Solve for the slope using y2-y1/x2-x1
Substitute: 19 - 9/ 2 - 1
Now you get 5 as your slope
Substitute this value into y = mx+b for the y - int
Remember m is the slope and b is the y intercept
After you solve for the y - intercept you get y = 5x + 4
