Answer:
2n^3
Step-by-step explanation:
n^3 represents the cube of the number n; therefore,
"twice the cube of a number" is 2(n^3) or 2n^3
Which expression is equivalent to 200?
Answer:
10 sqrt 2
Step-by-step explanation:
Rosa has $117 in her savings account and $95 in her checking account. Each week she will put $21 into her savings account and $25 into her checking account. Complete the equation that can be used to find the number of weeks, x, until Rosa has the same amount of money in both accounts.
Answer:
It will take Rosa 5 and a half (5.5) weeks to have the same amount of money in both accounts.
Step-by-step explanation:
For this problem, we will have to set two expressions equal to each other. The first expression will represent Rosa's saving account, which already has $117 in it. Every week ([tex]x[/tex]), she adds $21 to her savings account:
[tex]21x+117[/tex]
The second expression will represent Rosa's checking account. Rosa's checking account already has $95 in it. Every week ([tex]x[/tex]), she adds $25 to her checking account:
[tex]25x+95[/tex]
Now that we have our two expressions, set them equal to each other. This is our equation that will be used to find the number of weeks ([tex]x[/tex]) it takes until Rosha has the same amount of money in both accounts:
[tex]21x+117=25x+95[/tex]
Subtract [tex]21x[/tex] from both sides of the equation:
[tex]117=4x+95[/tex]
Subtract [tex]95[/tex] from both sides of the equation:
[tex]22=4x[/tex]
Divide both sides of the equation by the coefficient of [tex]x[/tex], which is [tex]4[/tex]:
[tex]5.5=x[/tex]
[tex]x=5.5[/tex]
So it will take five and a half weeks for her accounts to have the same amount of money.
_
Check your work by substituting [tex]5.5[/tex] into the initial equation:
[tex]21(5.5)+117=25(5.5)+95[/tex]
[tex]115.5+117=137.5+95[/tex]
[tex]232.5=232.5[/tex]
Since the accounts have the same amount, the answer is correct!
Answer:
5.5 weeksStep-by-step explanation:
GivenInitial balance
Savings account = $117Checking account = $95Added amount per week
Savings account = $21Checking account = $25If number of weeks is x, then required equation is
117 + 21x = 95 + 25xSolving for x
25x - 21x = 117 - 954x = 22x = 22/4x = 5.5The answer is 5.5 weeks
Please?
4. - 3+(-3)=-3-3 True False
Step-by-step explanation:
-3 +(-3)
= -3 -3
True because (+)(-) = -
QUICKKK!!! Lance's bowling score was 28 pins more than Jim's score. Lance's bowling score was 205. (a) Write an equation to determine Jim's score (j), (b) What was Jim’s score?
30 points!
Answer:
177
Step-by-step explanation: 205-28=177 ~
Need help pls it’s due today
Answer:
the answer is -2
Step-by-step explanation:
LOGIC lol
i’ll try to break it down for u so u can understand a little better.
the horizontal line is X and the vertical line is Y.
if u start in the middle going horizontally to the right u can find X and X will = 2
to find Y u need to start in the middle and count upwards until you find where the lines meet to create a point. Y = 1
X/Y = 2/1 which can simplify to 2
But since the line is going from left to right and going downwards it is negative hope this helped :)
PLEASEEEE HURRY!! What MUST be true for a parabola that has a maximum value? (Select all that apply) a.) the leading coefficient is positive b.) the leading coefficient is negative. C.) it opens up d.) opens down
Answer:
B.)
Step-by-step explanation:
that is a characteristic of a maximum value parabola.
Answer: it's the letter b.
Step-by-step explanation:
What percent of Rs 80 is Rs 20
Answer:
Your answer is 25%
Step-by-step explanation:
Hope this helps you
Do mark me as brainliest
Simplify
√
75
fully, giving your answer in the form
a
√
b
Answer:
5[tex]\sqrt{3}[/tex]
Step-by-step explanation:
Using the rule of radicals
[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex] , then
[tex]\sqrt{75}[/tex]
= [tex]\sqrt{25(3)}[/tex]
= [tex]\sqrt{25}[/tex] × [tex]\sqrt{3}[/tex] = 5[tex]\sqrt{3}[/tex]
Answer:
the answer to your question is
5√3.
Why don't churches use WiFi?
Answer:
becuase it is evil
Step-by-step explanation:
the will be evil and will become bad :)
please help me as soon as possible ! I have till 12AM to finish all my work I have a ton please help! :)
Answer: second one, then the 4th one
Step-by-step explanation:
richard is walking around his neighborhood. if he walks 1/3 mile in 1/6 hour, how fast is richard walking, in miles per hour?
Answer:
2 miles per hours
Step-by-step explanation:
You divide 1/3 mile by 1/6 hour
Use the reciprocal.
1/3 x 6/1 = 2/1
Simplify
2/1 = 2
You can also solve it this way:
If 1/6 hour is 10 minutes, and it takes 10 minutes to walk 1/3 a mile, then it would take 30 minutes to walk a mile.
30 x 2 = 60
Either way, Richard walks 2 miles per hour.
Richard is walking at an average speed of 2 miles per hour which is the correct answer would be option (B).
What is Average speed?Average speed is defined as the ratio of the total distance traveled by a body to the total time taken for the body to reach its destination.
To determine how fast is Richard walking, in miles per hour
We have to calculate the average speed which is the ratio of the total distance traveled by a body to the total time
Total distance traveled by Richard = 1/3 mile
The total time taken = 1/6 hour
Average speed = the total distance / the total time
Average speed = (1/3) / (1/6)
Reciprocal the denominator term, and we get
Average speed = (1/3) × 6
Average speed = 2 miles per hour
Therefore, he is at an average speed of 2 miles per hour
Learn more about the average speed here :
brainly.com/question/12322912
#SPJ2
m_1=3x, m 2 = 4x, m 3 = 2x, find x.
10
20
30
40
Answer:
x=20
Step-by-step explanation:
3x+4x+2x = 180
9x =180
x = 20
note: brainliest would be appreciated.
The line shown represents the value y of change June has in her change jar. 1 week ago, she had $2 in the jar. What is an equation of the line in
point-slope form?
6
4
-2
O
2
O A. y - 2 = 4(x +1)
o B. y - 1 = 4(x+2)
OC. y + 2 = -4(X +1)
D. y + 1 = 4(x + 2)
describe in words how to graph the line y=3
can someone help with that?
if x+y=2, calculate:
P=4x (x-3)+4y(y-3)+8xy
Answer:
Step-by-step explanation:
P = 4x(x - 3) + 4y(y - 3) + 8xy
= 4x² - 12x + 4y² - 12y + 8xy
= (4x² + 8xy + 4y²) - (12x + 12y)
= 4(x² + 2xy + y²) - 12(x + y)
= 4(x + y)² - 12(x + y)
x+y =2 ⇒ P = 4.2² - 12.2 = 16 - 24 = -8
A quadrilateral has no pairs of parallel sides. what two shapes could it be
Answer: It could be a rectangle or a parallelogram.
Step-by-step explanation:
1. A parallelogram has two pairs of parallel sides.
2. Opposite sides and opposite angles are congruent.
3. And a rectangle has two pairs of parallel sides.
4. 4 right angles (90°).
5. Opposite sides are parallel and congruent.
6. All angles are congruent.
Answer:
Kite and Arrowhead
Step-by-step explanation:
It’s asking for “No pairs of parallel sides”
meaning no Parallel sides. It can’t be Trapezium because it has one pair of parallel sides. {The question is asking for shapes with no parallel sides}
Thank you
write 45/6 as a mixed number in simplest form
Answer:
7 [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
45/6 = 7 Reminder 3
3/6 = 1/2
Therefore, the answer as a mixed number in simplest form is 7 [tex]\frac{1}{2}[/tex]
Answer:
45/6
= 15/2
7½
This is the answer
solve this 6x – 18 < 27
Answer: x < [tex]\frac{15}{2}[/tex]
Step-by-step explanation:
Hey there! If you have any questions please feel free to comment on it below.
Step 1: Add 18 to both sides
6x < 27 + 18
Step 2: Simplify 27 + 18 to 45.
6x < 45
Step 3: Divide by side by 6.
x < [tex]\frac{45}{6}[/tex]
Step 4: Simplify.
x < [tex]\frac{15}{2}[/tex]
~I hope I helped you!~
Answer:
Step-by-step explanation:
here you go mate
step 1
6x – 18 < 27 equation
step 2
6x-18(+18)<27(+18) add +18 to both sides
6x<45
step 3
6x/6<45/6 divide by 6
answer
x=15/2
Mrs. Chin paid a 20 percent tip on the bill for lunch.
Total
100%
20%
$2.75
Percents
20%
$2.75
20%
$2.75
20%
20%
$2.75
$2.75
If the tip amount was $2.75, what was the bill for lunch before the tip was added to it?
0 $5.50
$13.75
O $16.50
O $55.00
Answer:$13.75
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
I just took the test
You go shopping at a local department store with your friend and cousin. You buy one pair of jeans, four pairs of shorts, and two shirts for $84. Your friend buys two pairs of jeans, one pair of shorts and three shirts for $76. Your cousin buys one pair of jeans, two pairs of shorts and one shirt for $52. Find the cost of one pair of shorts.
Answer:
So, cost of 1 pair of shorts =$12
Step-by-step explanation:
Let cost of 1 pair of jeans =x
Cost 1pair of shorts =y
cost of 1 pair of shirts=z
We can set up equations as
x+4 y+2 z=84
2 x+1 y+3 z=76
x+2 y+z=52
Solve the equations for y.
Take first and second equations multiply first equation by -2 and add it with second equation.
-2 x-8 y-4 z=-168
2 x+1 y+3 z=76
Add them, it gives -7 y-z =-92
Now, take second and third equations, multiply the third equation by -2 then add them together.
2 x +1 y +3 z =76
-2 x-4 y-2 z=-104
Add them together,
-3 y +z =-28
Now, take the -7 y -z =-92 and -3 y +z =-28
Add the equations
-10 y = -120
Divide both sides by -10
y =12.
So, cost of 1 pair of shorts =$12
z=8
can someone please help me they are making us do a review from last year and i forgot how to do this
Answer:
See below.
Step-by-step explanation:
20.
[tex] \sqrt{43} - \pi = 6.5574 - 3.1416 = 3.4158 [/tex]
Plot the number between 3.4 and 3.5, but much closer to 3.4 than to 3.5 since it is approximately 3.42.
21.
(7.3 * 10^6) / (3.2 * 10^4) = 7.3/3.2 * 10^6/10^4 = 2.3 * 10^2
how do u position yourself while dribbling? (basketball)
Answer:
so defener wont take it away
Step-by-step explanation:
A tennis ball is hit upward with a velocity of 48 feet per second. Use h(x) = -16x2 + 48x + 400 where h(t) is the
height of the ball after x seconds. Ignoring the height of the tennis player,
21. How long does it take the ball to hit the ground?
a. 1.5 sec
b. 8 sec
c. 6.72 sec
d. 436 sec
22. What is the maximum height reached by the ball? a. 1.5 ft
b. 8 ft
c. 6.72 ft
d. 436 ft
23. At what time does the ball reach the maximum height?
a. 1.5 sec
b. 8 ft
C. 6.72 ft
d. 436 ft
OCT
21
21. C
22. D
23. A
Answer:
...
Step-by-step explanation:
...
Which rate can you set StartFraction 7 miles Over 1 hour EndFraction equal to in order to find the distance traveled in 49 hours at 7 miles per hour?
StartFraction 7 hours Over question mark miles EndFraction
StartFraction 49 hours Over question mark miles EndFraction
StartFraction question mark miles Over 7 hours EndFraction
StartFraction question mark miles Over 49 hours EndFraction
Answer (It should be D, or ? miles
------------
49 hours
Step-by-step explanation:
If i'm wrong then oh-well i took my unit test online then got the answer wrong so i could see which one was correct before i actually took the unit test... hope i'm correct for you..this is correct on my unit test practice!
I need help with this I am giving 60 points
Answer:
<2 ≅<4 with reason of vertical angle theorem.
Step-by-step explanation:
The vertical angle theorem states that two opposite (non-adjacent) angles formed by 2 intersecting lines have equal measure. In this problem, we are given that the angles are vertical angles. So the statement is that <2 ≅<4 with reason of vertical angle theorem.
14 - a = 5
-4 - 8n = -100
Answer:
a=9
n=12
Step-by-step explanation:
a=14-5
a=9
8n=100-4
n=96\8
n= 9
14-a=5
-a=5-14
-a=-9
a=9
-4-8n=-100
-8n=-1000+4
-8n=-996
n=-996/-8
n=249/2
a 9ft ladder is placed 4.5 feet from the base of a wall. How high up will the ladder reach? Round to the nearest hundredth.
Answer:
[tex]\huge\boxed{7.79 \ \text{feet}}[/tex]
Step-by-step explanation:
We know that we have a 9 foot long ladder resting upon a wall, with an unknown height, but the ladder is 4.5 feet away from the wall.
This can be represented as a triangle, where x is the unknown side.
|\
| \
x | \ 9
| \
| \
|_____\
4.5
We can use The Pythagorean Theorem to find the value of x. The theorem states that [tex]a^2+b^2=c^2[/tex], where a and b are the lengths of the legs and c is the length of the hypotenuse.
However, we already know the hypotenuse and one leg. Therefore we can substitute inside the equation to find the missing value.
[tex]a^2 + 4.5^2 = 9^2\\\\a^2 + 20.25 = 81\\\\a^2 = 60.75\\\\a \approx 7.79[/tex]
Hope this helped!
Can anybody help? I don't get what this question means
Answer: B is the only true statement.
Step-by-step explanation:
find the values of x and z.
Answer:
x = 2
z = 93°
Step-by-step explanation:
set the top and bottom equations equal to each other...
5x + 77 = 9x + 69, solve for x...
subtract 69 and 5x from both sides...
8 = 4x
divide both sides by 4...
x = 2
substitute 2 for x in either equation...
5(2) + 77 = 87°
subtract 87 from 180...
180° - 87° = 93°
z = 93°
What is the slope of the line on the graph? Enter your answer in the box
Answer:
Step-by-step explanation:
Slope is 6/1