Answer:
length is 14.4ft and the width is 12.4ft
Step-by-step explanation:
Volume of the aquarium = length * width * height
Given
Volume = 300ft^3
Height = 3feet
l = w+4
Substitute
300 = 3w(w+4)
100 = w(w+4)
100 = w^2+4w
w^2+4w-100 = 0
w = 4±√16+400/2
w =4±√416/2
w = 4±20.4/2
w = 24.4/2
w = 12.2feet
Since l = w+4
l = 12.2+4
l = 16.4ft
hence the length is 14.4ft and the width is 12.4ft
(2)
3. Martin is carrying groceries in from the car. If he can
carry 2 bags at a time, how many trips will it take him to
carry in 9 bags?
Answer: 5
Step-by-step explanation: 9/2 = 4.5
Please HELP ASAP PLEASE?????!!!!
Answer:
-1
Step-by-step explanation:
Any number less than -2 (ex -3, -4, -5) are less than -2
Answer:
-1
Step-by-step explanation:
If you look at a number line, you will see that -1 comes before -2. Since -2 is a negative number, then the lower the number, the greater it is.
A bus can hold up to 30 students. 10 have already got in class. the inequality is
Answer:
20? i dont know hopefully im right
Step-by-step explanation:
help me with the question
Answer:
What is the question?
Step-by-step explanation:
Answer:
Where is the da mn question you stupendous
Step-by-step explanation:
what is the amount of change for this 25 is decreased to 17
Answer:
20.75 Absolute change
Step-by-step explanation:
WILL GIVE BRAINLST
HAVE AN AMAZING DAY :)
Answer:
D, 12 units, j and L, 25.3 units
Step-by-step explanation:
Hop3 it helps :)
WILL GIVE BRAINLIEST FOR CORRECT ANSWER!
Please help me.
The answers are
A (3, -2
B (1,14)
C (4,3)
D (2,9)
Answer:
c. (4,3)
Step-by-step explanation:
If you look at all the rest of the coordinates, compared to (4,3). None of them are in the red area. They are either in the blue, or the orange. To be a solution it has to be in both areas, (the red). Hope this helps!
A helicopter flying 2,000 feet above the ground spots an airplane flying above. If the horizontal distance between the helicopter and airplane is 3,335 feet and the angle of elevation is 85°, find the airplane’s altitude. Round to the nearest tenth.
Answer:
The answer- 1254ft
Step-by-step explanation:
You can do the calculator trick and get the answer and round to the tenth
1.Assume that 20 squirrels are put in an enclosed wildlife ranch and the squirrel population grows for the next 5 years, as shown in the table.
Year
Rabbit Population
0
20
1
80
2
320
3
1280
4
5120
5
20,480
Write a function that represents this.
2.A second group of 20 squirrels of a different breed is placed on a different ranch. The population of squirrels triples each year. Write an equation to model this situation.
3.Had the second group started with 40 squirrels instead of 20, which population will be bigger by year 3 and by how much?
Answer:
For the first group we have the pairs:
year population
0 20
1 80
2 320
3 1,280
4 5,120
5 20,480
Here we can see that the population quadruples each year
(4*20 = 80, 80*4 = 320, 320*4 = 1,280, etc...)
then the population equation is:
P(0) = 20
P(1) = 20*4
P(2) = (20*4)*4 = 20*4^2
We already can see the pattern, then we can write this relationship as:
P(t) = A*(4)^(t)
Where:
t represents time in years, and A is the initial population, that we know it is 20, then:
P(t) = 20*(4)^t
This is the function that represents the table.
B) Now we have a group of 20 squirrels and the population triples each year, with the same reasoning than before we can write the equation that models this situation as:
Q(t) = 20*(3)^t
C) Now, if the initial population of the second group is 40, the equation becomes:
Q(t) = 40*(3)^t
The population by year 3 is given by replacing t by 3, then:
Q(3) = 40*(3)^3 = 1080
And the population of the other group in year 3 is seen in the table, it is 1,280, then the population of the first group is bigger by year 3, and it is greater by:
1,280 - 1,080 = 200
So the first group is larger by 200 squirrels.
HELP MEE i really need help on this
Answer:
7/45
Step-by-step explanation:
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Whitney has £12 pocket money.
She spends 50% of her pocket money on
magazines.
She spends 33% of her pocket money on apps.
How much pocket money does she have left?
Show the steps in your working.
Answer:
74389
Step-by-step explanation:
5784073
30695
76
572
at Mountain Park Middle School there are 250 7th grade students currently 32% of those students are in advanced math
Answer:
95
students in the seventh grade have taken swimming lessons.
Explanation:
We calculate
38
%
of
250
using the following formula:
x
=
250
×
38
100
x
=
25
0
×
38
10
0
(cancel by 10)
x
=
5
25
×
38
2
10
(cancel by 5)
x
=
5
×
19
38
1
2
(cancel by 2)
x
=
5
×
19
x
=
95
Step-by-step explanation:
Why 28, 60 and 120. tell me each step please?
Answer:
down here
Step-by-step explanation:
Exterior angles is the sum of the two opposite angles
so 100 - 72° = x
x = 28°
thats how you get 28°
720° is the sum of angles in a regular hexagon
720 / 6 = 120°
So the interior is 120°
To find the exterior angle, simply subtract the interior degree from 180.
external degree = 180 - 120 = 60
The exterior angle of a regular hexagon is 60 degrees.
Step-by-step explanation:
Alright, so over here, the triangle is called an exterior angle. When there is a line outside the triangle.
And the line outside the triangle means that the line outside is equal to the 2 other angles.
So in this case, it would be 100 = 72 + x.
Now let's do 100 - 72 to get the missing x.
100 - 72 is 28, right?
So our answer is 28.
Now the next one.
Regular hexagons interior angle sum using the formula (n-2) × 180 = (6-2)×180 = 4 × 180° = 720°
every interior angle then would be 720/6 = 120°
Now exterior angles are always 360°
so all angles = 360/6 = 60º.
What did Samuel do wrong??? Samuel said 2.25 + 1.75 + 0.5 = 3.50 what did he do wrong? Choose....what he did wrong
Answer: 4.50
Step-by-step explanation:
.5 is = to .50 so that means that your going to add 2.25+.50= 2.75 and then add another 1.75 and get 4.50 as your answer:)
Paolo is using his grandmother's breakfast bar recipe. He always doubles
the amount of yogurt and oats. The recipe calls for 2 1/2 cups of
yogurt.
The total amount of yogurt and oats after doubling is 6 1/3 cups. Write an
equation to find the original amount of oats in the recipe.
I just need the equation i don't need the answer!!!! pls help me!!!!
Answer:
[tex]6\frac{1}{3}[/tex] = [tex]2\frac{1}{2}[/tex] * 2 + [tex]\frac{x}{2}[/tex]
Step-by-step explanation:
lets start with what we know.
the recipe calls for 2 [tex]\frac{1}{2}[/tex] cups of yogurt. and Paolo doubles the recipe. so multiply the recipe for yogurt by 2
2 [tex]\frac{1}{2}[/tex] * 2 = 5 cups of yogurt.
the total of yogurt and oats is [tex]6\frac{1}{3}[/tex] and we know how much yogurt we have so we subtract that from the total of both.
[tex]6\frac{1}{3}[/tex] - 5 = [tex]1\frac{1}{3}[/tex]
the oats after doubling were [tex]1\frac{1}{3}[/tex] cups so u divide it by 2
[tex]1\frac{1}{3}[/tex] / 2 = [tex]\frac{2}{3}[/tex] before doubling
This question is 4 marks but it’s only giving me 2 and I don’t know what else to put
Answer:
I don't remember how but you need to work out the frequency, because what you're using is the cumulative frequency.
what is the quotient of 267.72 and 4.6?
Help Me Please................(4)
Answer:
n= -13/10
Step-by-step explanation:
-n= -7/10+2
-n= 13/10
n= -13/10
Select the three ratios that represent the number of red cars to blue cars.
Answer:
4 red cars 6 blue cars
Step-by-step explanation:
Plz help and thank you:)
Answer:
I believe it is D at least I hope so
3x + y=11
-2x + y=1
Solve using substitution method
Answer:
3x+yl=11
-2x+y=11
y=11-3x
-2x+11-3x=11
-5x=11-11
so x=0
y=11-0
y=11
on monday delilahs family drives 45 1/3 miles each hour
Answer:
15 total miles each hour
Step-by-step explanation:
for this situation and the information given in the question, all we have to do is divide the total amount by 3 (since its 1/3) to get the amount of total miles they drove at, wich is the speed they drove in this case
(sidenote: kinda slow if ya ask me but ok XD)
hope this helps you :D
A diagonal divides a square into two isosceles right triangles
Always True
Sometime True
Never True
Answer:
always true I think hope it helps
How to write 9/10% as a fraction?
Answer: 90%
Good Luck!
Answer:
90 / 1 your welcome
Use the distributive property to write an equivalent expression. 4(x+2)
Answer: 4x+8!
Step-by-step explanation:
Multiply the 4 by x and then multiply the 4 and 2 and bam!
I need help eeeeeeeeeeeeeeeeee
Answer:
i havent did this in years BUt i will try the top would be the same as the bottom
Step-by-step explanation:
Answer:
Length × breadth × height
20×22×2= 880m cube
Please help, I need an answer.
Answer:
y=-1/3x-11/3
(Not sure what point slope form is, but this is the equation for the points)
What is 1.35 rounded to the nearest whole ounce
Answer:
Pretty sure the answer would be 1
Step-by-step explanation:
Answer:
i think 2.7
Step-by-step explanation:
Find the area of this parallelogram.
6 cm
8 cm
15 cm
Answer:
90 cm
Step-by-step explanation:
15 x 6 = 90