Answer:
Step-by-step explanation:
Let the number of CD's = c
Let the number of tapes = t
Total number of CD's and tapes = 9
c + t = 9 --------------- (i)
Cost of 'c' CD's = 7*c = 7c
Cost of 't' tapes = 6*t = 6t
Total cost = $ 68
7c + 6t = 58 -----------------(ii)
Multiply the first equation by (-6) and then add the equations.
(i)* (-6) -6c - 6t = - 54
(ii) 7c + 6t = 58 {Now add. here t will be cancelled}
c = 4
Number of CD's = 4
Plugin c = 4 in equation (i)
4 + t = 9
t = 9 - 4
t = 5
Number of tapes = 5
help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
12x=9x^(2)+4 has a real solution the rest don't.
Step-by-step explanation:
Please answer this (who ever answers correctly gets brainlest)
Answer: 45ft
Hope this helps
Select the expression that has a sum of 74/100
Full question
Select the expression that has a sum of 74/100
A.70/100+4/10
B.68/100+6/10
C.6/10+12/100
D.4/10+34/34/100
1. Observe question
2. Crossout way to find answer
A is not, because the sum of A is 110/100
B is not, because the sum of B is 128/100
C is not, because the sum of C is 72/100
Therefore, the answer has to be D
PLS HURYYY LAST. 2 (100 POINTS)
Answer:
A) ΔABC ∼ ΔEDC , because m∠2 = m∠6 and m∠1 = m∠5
What are the coordinates of the point (-3, 0) after a translation 2 units up?
A. (-3,2)
B. (-5,0)
C. (-3,-2)
D. (-1,0)
Answer: (-3,2)
Step-by-step explanation:
It's a translation 2 units UP, which means vertically, which means the Y Axis, so your (-3,0) which is formatted like: (x,y) would add 2 to the y variable of the coordinate -> (-3,2), You don't even need a graph for this problem tbh.
The coordinates of the (-3, 0) after a translation 2 units up is: A. (-3, 2).
What is Translation?Translation is a form of transformation, whereby the points of a figure is moved from one position to another by the same distance in a given direction.
Given a point, (-3, 0), after translation 2 units up, that is, 2 units up along the vertical axis (y-axis), we would have:
(-3, 0 + 2 units) = (-3, 2).
Thus, the coordinates of the (-3, 0) after a translation 2 units up is: A. (-3, 2).
Learn more about translation on:
https://brainly.com/question/15123583
What is 47 minutes before 6:57
Answer:
it would be 6:10
Step-by-step explanation:
[tex]6:57-0:47 = 6:10[/tex]
Ethan can blow 15 balloons in 20 minutes, Jun Wei can blow 18 balloons in 25 minutes and Vishal can blow i16 balloons in 21 minutes. Assuming that all balloons are blown to the same size, who can blow balloons at the fastest rate?
Kindly answer fast its urgent I have to give my homework tommorow.
Answer:
Vishal can blow the balloon in the fastest rate of time
The number of messages posted each day on an online message board during the first 5 days it was open are listed below
2,350 2,900 3,450 4,000 4,550
The number of messages posted each day follows a pattern. Which expression can be used to determine the number of messages
posted on the nth day?
O A. 2,350n
ов.
550(n + 1,800)
O C.
550n + 1,800
O D.
1,800n + 550
= C, 550n + 1800
Here is how you make a expression for a sequence:
1) Firstly, identify the number gap. This is 550. 2350 + 550 = 2900. 2900 + 550 = 3450, ect. So this means that it is 550n.
2) n is basically just the number in the sequence it stands on. n for 2350 is 1. So now you need to know what you must add to 550n to get whatever n is. We will choose 2350. n is 1 for it. 550 x 1 = 550. 2350 - 550 = 1800. So it is 550n + 1800.
⭐ Answered by Foxzy0⭐
⭐ Brainliest would be appreciated, I'm trying to reach genius! ⭐
⭐ If you have questions, leave a comment, I'm happy to help! ⭐
learning about graphs:
me : haha lines go bRRrR
Answer:
see explanation below
Step-by-step explanation:
1) 2011 sum
(6+8)100
14(100) = 1400 coins collected
2) 2015 difference
(6-4)100
2(100) = 200 coin difference
3) Henry is red. just look at the points where red is ABOVE blue
2011, 2014, 2015
4) you can take your answer from one and add it to the coins collected in 2010
1400 + (4+8)100
1400 + (12)100
1400 + 1200
2600 coins
5) Chris is in blue. just look at the points where blue is ABOVE red
3 years
but it asks months
so 3*12 and you get 36 months
100 POINTS.. ONLY ANSWER IF YOU KNOW IT OR I WILL REPORT.. PHOTOS OF QUESTION INCLUDED..THANKS
==============================================
Further Explanation:
Whenever you are doing a proof, always start with the given info. It may seem silly to literally repeat (word-for-word) what your teacher has given you, but this is how all proofs start out. It helps place an anchor point in which you can connect to what you want to prove.
So this is why the first line is literally a repeat of what your teacher has stated. The reason you'll state is "given".
------------------
For reason 2, we use the vertical angle theorem. Vertical angles are always congruent.
Vertical angles form whenever we have an X shape like this of two segments crossing. The angles are opposite one another (almost like mirror images of sorts).
-----------------
Lastly, reason 3 uses the SAS (side angle side) similarity theorem.
This is the theorem which says that if you have two pairs of sides in proportion and a pair of congruent angles between those sides, then we can prove the triangles similar.
Statement 1 handles the sides being in proportion. Statement 2 handles the congruent angles.
As you can see, everything in this proof builds step by step toward the final goal of saying triangle ABC is similar to triangle EBD.
Answer:
well 1 plus 1 is 2 so i dont know
Step-by-step explanation:
:)
Determine if the given relation is a function. Explain your answer.
/y/=x
One species of fish in a fishery had an initial population of 255 fish and grew by 25 fish each season. A second species that was being overfished started with an initial population of 450 fish, and then decreased by 40 fish each season. Assuming a linear change, write equations for the populations of each species. When will the two populations have the same amount of fish? After how many seasons will the second species be eliminated?
Answer:
they intersect at 3.5 seasons, 312 fish. the second gets elimed at 11 seasons
Step-by-step explanation:
equations:
first:
amount of fish = 225 + 25*season
second:
amount of fish = 450 - 40*season
whats an irrational number
En un triángulo isósceles los lados iguales miden el doble que la base. ¿Cuanto mide la base, si se sabe que el perímetro es de 75cm?
Determine the slope of the line.
Answer:
m=1/4
Step-by-step explanation:
Start by picking two points that are clearly visible on the line: (1, -3) and (-3, -4).
The equation for slope is: m=[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Where [tex]x_{1}[/tex]=1 [tex]x_{2}[/tex]=-3 [tex]y_{1}[/tex]=-3 [tex]y_{2}[/tex]=-4
m=[tex]\frac{(-4)-(-3)}{(-3)-1}[/tex]
m=-1/-4
m=1/4
this is math please help me
Answer:
1) A
2)C
Step-by-step explanation:
Hope this helps! Please mark me as brainliest :)
Arun bought a pair of skates at the sale where the discount given was 20%. If the amount he pays is 1600 find the marked price
Answer:
2000
Step-by-step explanation:
1600 is 100% - 20% = 80% of the original price.
So it is 4/5 of the original price.
So, the marked price is 1600 * 5/4 = 2000
6xy - 4y + 6 - 9x
Factorise pls answer
Answer:
(3x-2)(2y-3)
Step-by-step explanation:
[tex]6xy-4y+6-9x[/tex]
[tex]\left(6xy-4y\right)+\left(-9x+6\right)[/tex]
[tex]2y\left(3x-2\right)-3\left(3x-2\right)[/tex]
[tex]\left(3x-2\right)\left(2y-3\right)[/tex]
Hope this helps!
Speedy Cab Company uses the following to determine fares:
-A $5.00 flat fee for the trip.
-An extra $0.75 for each mile traveled.
Which equation represents the total fare, t, if x equals the number of miles?
Eric found that about 62% of 80 classmates at school like hip-hop music. However, 70% of his 60 relatives like hip-hop.
Do more classmates or relatives like hip-hop?
Answer:
more classmates like hip-hop
step-by-step explanation:
percentages (%) are out of 100
classmates: 62% of 80 is the same thing as
[tex] \frac{62}{100} \times 80 = 50 \: rounded \: up[/tex]
relatives: 70% of 60 is the same thing as
[tex] \frac{70}{100} \times 60 = 42[/tex]
we can clearly see that more classmates like hip-hop
A bag contains 7 green marbles,2 white marble s, 5 orange marbles,9 blue marbles, and 7 red marbles. a marble will be drawn from the bag and replaced 180 times what is a reasonable prediction for the number of times a white or red marble will be drawn?
The reasonable probability that a white or red marble will be drawn all 180 times is; (3/10)¹⁸⁰.
Probability with replacementSince the probability is with replacement;
First, the total number of marbles in the bag is; 7+2+9+5+7 = 30.Hence, the probability that a white or red ball is drawn each time is; 2+7 = 9 possible outcomes.
Hence, it follows that the probability for white or red each time is; 9/30 = 3/10
Hence, when drawn 180 times, the probability is;
P = (3/10)¹⁸⁰.Read more on probability;
https://brainly.com/question/24756209
Write an algebraic expression that represents each verbal expression: 6 times a number plus 3
[tex]\huge \text{Hello there! :)}[/tex]
Answer:
The algebraic expression is as followed:
➛ [tex]\huge \text{6(n+3)}[/tex]Step-by-step explanation:
Given the following question:
➛ 6 × a number➛6 × n➛plus 3 ➛ equals6(n+3)what is a algebraic expression?It's an equation built up by integers, variables, and many different operations like addition and subtraction.In this case 6 and 3 are the integersn is the variable6 times and + 3 are the operationsAll form together to make a algebraic expression.Hope this Helps! :)If you have any doubts about my answer please let me know.
[tex]-Nature-[/tex]
[tex]\huge \text{Thanks for choosing Brainly! :)}[/tex]
Calculate:
f(4) - (g(2) + f(3)) =
h(1) + f(1) x g(3) =
Answer:
1. f - 2g
2. im sorry i cant figure it out
Step-by-step explanation:
Solve (-7/3)x -3=-53
Answer: 21
Step-by-step explanation:
Add 3 to both sides so then it would be -7/3x=-49
Then multiply the reciprocal of -7/3 which is -3/7 to both sides
It would then be x=-49 times -3/7 and if you simplify that it becomes 21
Use the function below to find f(2).
Answer:
[tex]\frac{16}{3}[/tex]
Step-by-step explanation:
To solve this, let's substitute 2 for x:
[tex]f(2)=\frac{1}{3}*4^2\\f(2)=\frac{1}{3}*16\\f(2)=\frac{16}{3}[/tex]
Once you have identified the author’s claim and also located all of the evidence provided, how do you analyze the claim?
Decide if the evidence supports the claim well enough to convince most readers that it’s true.
Decide how the author should have supported the claim, instead of the way he or she chose.
Decide if the author should have done more research or worded the claim differently.
Decide whether or not you agree with the author’s claim, regardless of the evidence.
Answer:
Decide if the evidence supports the claim well enough to convince most readers that it's true
Step-by-step explanation: I just took the test with that in it
PLS PLS PLS PLS HELP ASAPPPP
Answer: sqrt(650)
Step-by-step explanation:
sin 45 = 5sqrt(13)/y
y = 5sqrt(13)*2/sqrt(2) = 10sqrt(13)/sqrt(2) = sqrt(650)
A rectangle is 7 feet long by 2 feet wi
lf 2 feet are added to the length of the
would be the area, in square feet
Answer:
Step-by-step explanation:
L = W+2A = 63 = W × (W+2)W^2 + 2W = 63W^2 + 2W — 63 =0(W+9)(W-7) = 0W = 7….. L = W+2 = 9Dimenions are 9′ × 7′
given f (x) = x^2 + 2x and g (x) = 3x + 6 , what is F (x) • g (x)
Answer:
1. f(x)=2 2. g(x)7 14
Step-by-step explanation:
1. if you graph the points for f(x) then you get 2.
2. if you graph the points for g(x) then you get 7.
and there is your answer! hope this helps!
Solve the following equations. 15(x-4) – 2(x-9) = 2(x-1)
Answer:
X=40/11
Step-by-step explanation:
15(x-4)-2(x-9) =2(x-1)
=15x-60-2x+18=2x-2
=11x=60-18-2
=11x=40
=X=40/11