Answer:
correct answer is A i thik so
A faucet delivers water at a rate of 2.7 gallons per minute. Kenny needs to fill a 30-gallon tank. The tank already has 3 gallons of water in it. Let g represent the number of gallons of water in the tank after t minutes. Write an equation that can be used to find the number of minutes, t, which it will take to fill the tank with g gallons of water. Then find the number of minutes it will take until the tank is completely full.
Answer:
It will take 10 minutes to fill the tank completely.
Step-by-step explanation:
If the 30-gallon tank already has 3 gallons of water in it, then 27 more are needed to fill the tank. Thus, at time t = 0, g(0) = 3 gallons, and
g(t) = (3 gallons) + (2.7 gal/min)t, where t is the time in minutes.
At the time the tank is completely full, it holds 30 gallons. How long does this take to achieve: Set (3 gallons) + (2.7 gal/min)t equal to 30 gallons:
30 = 3 + 2.7t, or 27 = 2.7t, or t = 10 minutes
It will take 10 minutes to fill the tank completely.
In summer, the price of strawberries goes up by $1.25 per pound. Sam bought two pounds of strawberries at the new price for $8.46. Write an algebraic equation to determine the original price per pound (s). Use the equation to find the original price per pound.Show your work.
Answer:
The original price was $7.21
Step-by-step explanation:
8.46-1.25= 7.21
PLEASE HELP, MARKING BRAINLIEST!!!
What is the surface area of the prism?
Answer:
Step-by-step explanation:
122
Answer:
125.254..
Step-by-step explanation:
The triangles are 8 inches squared each, since it gives the length and width.
Since there are two triangles, it is 16.
The bottom is 4 by 8, which is 32, the back rectangle is 4 x 8 also, which is 32.
So we now have 32 + 32 + 16.
= 64 + 16
= 80
There is that last slant rectangle, which is harder.
We need to use pythagorean theorum to find that slant length first.\
4 ^ 2 + 4 ^2 = x ^2.
16 + 16 = 32.
32's squared root is something like 5.65685424949, but we will use 5.66.
Multiply that by 8 to get 45.254........
Add 80 + 45.254 = 125.254...
Round if the question tells you to, but this is an approximation due to decimals.
the volume in a tank varies periodically. At t=0 is at its maximum of 520 gallomns and at t=6 it is at its miximum of 170 gallons. A function in the form y=Acos(Bx)+C can be used to model this situation.Based on the information given determine the values of A,B and C
Answer:
A = 175, B = π/6, C = 345
Step-by-step explanation:
The given variation of the volume in the tank and time includes are;
At t = 0 the volume in the tank, y = Maximum volume, [tex]y_{max}[/tex] = 520 gallons
At t = 6 the volume in the tank, y = Minimum volume, [tex]y_{min}[/tex] = 170 gallons
The function that models the situation is y = A·cos(B·x) + C
Given that the function that models the situation is the cosine function, we have;
A = The amplitude = (The maximum - The minimum)/2
∴ A = (520 - 170)/2 = 175
A = 175
The period = The time to change from maximum to minimum = 2 × The time to change from maximum (t = 0) to minimum (t = 6)
∴ The period = 2 × (6 - 0) = 12
The period = 12 seconds = 2·π/B
∴ B = 2·π/12 = π/6
B = π/6
C = The vertical shift = Th minimum + A = (The maximum + The minimum)/2
∴ C = (520 + 170)/2 = 345
C = 345
can someone help with math question?
I need help can you help me please
Find the mean of the data set below: 3, 7, 5, 13, 20, 23, 39, 23, 40, 23, 14, 12, 56, 23, 29.
Step-by-step explanation:
3+5+7+12+13+14+20+23+23+23+23+29+39+40+56=318
318/15=21.2
Answer:
hhhh
Step-by-step explanation:
Please help I’m strugglinggg Oml and this is due right now
Answer:
i dont understand thisssssssss im sorrrryy what is c(5)?????? huhhhhhhhhh
Step-by-step explanation:
What are the answers for 3(8 + 2) - 6² ÷ 9 + 8 and 6 + (5 - 3) · 3² ÷ 9 – 7
please show work!
Okay we’re gonna do the order of PEMDAS. Here is my work! I hope you have a great day or night or whate it is for you.
Answer:
Step-by-step explanation
Here is the solution of your question.
Hope it helps you!!
6th grade math that I forgot please help
Which value is the most precise representation of the
circumference of a circle with a diameter of 13?
a. 13(d)(7)
b. 13(3.14159)
C. 1310
d. 40.8407045
The answer would be B because its pieRsquared
PLS HELP THIS LOOKS SO EASY BUT OML
Answer:
try c
Step-by-step explanation:
Which linear inequality is represented by the graph
Answer:
it answer b i think
Step-by-step explanation:
Drag the label for the length of the sides of the triangle shown that would satisfy the following conditions: cos(B) = 9/41
tan (C) = 9/40 Not all choices will be needed
Trigonometry
Answers:
AB = 9 (vertical leg)AC = 40 (horizontal leg)BC = 41 (hypotenuse===============================================
Explanation:
We're told that
cos(B) = 9/41
Since the cosine ratio involves adjacent/hypotenuse, we can see that the adjacent side is 9 and the hypotenuse is 41. For angle B, the adjacent side is the leg closest to the angle in question. So that would be side AB.
Therefore, AB = 9 and BC = 41 are the adjacent and hypotenuse for reference angle B.
Apply the pythagorean theorem to solve 9^2+x^2 = 41^2, and you should get x = 40. This is the other leg of the triangle. Or you could note how tan(C) = 9/40 to imply that AC = 40 is the adjacent side for reference angle C.
60 out of 1240 are poisonus. what percentage of trees are poisonus
Answer:
4.84%
Step-by-step explanation:
Answer:
60 poisonous trees. 1240 total trees. 4.84% of trees on the island are poisonous.
Step-by-step explanation:
PLSSSSSS HELP!WILL PUT BRAINLIEST!
Answer:
x<2
Step-by-step explanation:
x<2;
The open circle means that this inequality is not inclusive.
If the circle was filled in the inequality would have been x[tex]\leq[/tex]2
Marking brainliest
Pls help
Answer:
C
Step-by-step explanation:
Within the sentence, it explicitly states "the war was a vehicle for lasting social and economic gains." In other words, the war led to a better future in terms of social and economic gains for discriminated groups (discriminated groups were mentioned in the beginning of the sentence which gives us the who). Some may argue D is correct, but I strongly side with C instead because D emphasizes discrimination ended, while the sentence makes no such claim. The sentence only states discriminatory issues were improved, but still not completely absent. As for A, there is no mention of technology in the sentence. In terms of B, the sentence refers to the "gains" or improvement of discrimination and not the "plague" or worsening of discrimination. Hence, C fits best.
On a map, 1 inch equals 7.4 miles. Two houses are 1.5 inches apart on the map.
What is the actual distance between the houses?
Answer:
11.1 miles.
Step-by-step explanation:
1 inch is 7.4 miles.
1.5 inch is 7.4 times 1.5 miles.
11.1 miles.
Marleny is creating a game of chance for her family. She has 5 different colored marbles in a bag: blue, red, yellow, white, and black. She decided that blue is the winning color. If a player chooses any other color, they lose 2 points. How many points should the blue marble be worth for the game to be fair?
4
6
8
10
Answer:
4
Step-by-step explanation:
Got it right on brainly
The blue marble should be worth 8 points , Option C is the answer.
What is Probability ?Probability is the likeliness of an event to happen.
Let the random variable is x ,
probability mass function is f(x) = P(X = x)
then The expectation of a random variable is determined by
E(x) = ∑(i =1 to n) ( [tex]\rm x _i *f(x_i)[/tex] )
If the game has to be fair , the number of points that one can loose should be equal to the number of points one can gain.
Probability of getting any color marble = 1/5 = 0.2
Let x be the total points scored in a game
and b be the number of points for blue coloured marble
Probability of choosing non-blue marble = 4/5 (points =-2)
Probability of choosing blue marble = 1/5 (points = b)
E(x) = -2 * (4*5) + b* (1/5)
The expectation will be zero as the total points balance out
0 = -8/5 + b/5
b = 8
Therefore the blue marble should be worth 8 points , Option C is the answer.
To know more about Probability
https://brainly.com/question/11234923
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Simplify help please
Answer:
x = 85
Step-by-step explanation:
The Pythagorean theorem is a property that is specific to right triangles, or triangles with a right angle. The Pythagorean theorem states the following,
[tex]a^2 + b^2 = c^2[/tex]
Where (a) and (b) are the legs or the sides adjacent to the right angle, and (c) is the hypotenuse or side opposite the right angle.
Substitute in the given values and solve,
[tex]13^2 + 84^2 - x^2\\\\169 + 7056 = x^2\\\\7225 = x^2\\\\85 = x[/tex]
find the lowest common multiple of 36 and 48
Answer:
144
Step-by-step explanation:
48= 2^4×3
36= 2^2×3
LCM= 2^4×3^2
= 144
hope this helps
Which is the greatest common factor of
48 and 72?
A, 8
B, 12
C, 24
D, 48
Answer:
24
Step-by-step explanation:
Because we have to look at the GREATEST common factor.
8 and 12 are factors but they are not the greatest.
24 is the greatest common factor they both share.
I need help. NO links or I will report.
Answer:
30
Step-by-step explanation:
Well I think that this is a line, and so the angle is 180. The other line is 90 which is half of 180. It leaves 90 left. then all you have to do is solve the equation 3x=90 (x+2x=3, 9-9=0) 90 divided by 3 is 30.
Coral bleaching can be hazardous to some fish species because coral reefs provide unique habitats for fish
Answer A: coral reefs provide unique habitats for fish A decomposition of corals can lead to ocean acidification
Answer B: decomposition of corals can lead to ocean acidification B the dead corals attract predators that feed on the fish
Answer C: the dead corals attract predators that feed on the fish C the corals are the primary source of O2 in ocean water
Answer D: the corals are the primary source of O 2 in ocean water D
Answer:
A) coral reefs provide unique habitats for fish
Step-by-step explanation:
Coral bleaching can be hazardous to some fish species because
A) coral reefs provide unique habitats for fish
B) decomposition of corals can lead to ocean acidification
C) the dead corals attract predators that feed on the fish
D) the corals are the primary source of O2O2 in ocean water
Solution:
Coral bleaching is process in which corals are stressed as a result of changes temperature, light, or nutrients causing them to turn completely white. Coral reefs are is a very diverse ecosystems with ecological and economic value.
Coral reefs are a very important habitat for the fishes providing home to about 25% of fishes. The coral reefs are used for shelter during the day, and as a hunting ground by night.
which transformation will change figure a to figure b
Answer:
I believe it would be the first choice. Rotate 180 degrees about the origin, dilate by a scale factor of 2/3
Step-by-step explanation:
Find the perimeter of this triangle:
9m
6m
15 m
Answer:
18m
Step-by-step explanation:
Answer:
18 m would be the answer.......
Simplify 400-[200+35-70(100/25)}] hurry plz
Answer:
445
Step-by-step explanation:
don't know if right sorry if not
Answer:
445
Step-by-step explanation:
400 - [200 + 35 - 70 (100/25)]
400 - [200 + 35 - 70 (4)]
400 - [200 + 35 - 280]
400 - [200 - 245]
400 - [- 45]
400 + 45
445
If you have any questions, let me know! hope this helps!
need help on a systems of equations word problem
Answer:
brazil: 12.8 portugal: 14.769230769230769 (you need to round it)
Step-by-step explanation:
just divide.
Solve the following system of equations using substitution.
5x - 4y = -3
y = - 3x + 5
O (-1,-2)
O (1,2)
O (-2, 1)
O (2, 1)
Answer:
Step-by-step explanation:
Solve the Function Operation
Rewrite
=
so is on the left side.
=
Which of the following is the correct graph of the solution to the inequality -18 > -5x + 2 ≥ -48?
Answer:
Step-by-step explanation:
The answer is 4 < x ≤ 10
Which of the following rational functions is graphed below?
Answer:
[tex]f(x)=\frac{(x+2)}{(x+1)}[/tex]
Vertical Asymptotes: x= −1
Horizontal Asymptotes: y= 1
So, last option will be your answer
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hope it helps...
have a great day!!
