Answer:
There are 120 students in the choir.
Step-by-step explanation:
Given that:
Number of members who participated in contest = 36
This represents 30% of the total members of choir at the school.
Let,
x be the number of total sutdents
30% of x = 36
[tex]\frac{30}{100}x=36[/tex]
0.3x = 36
Dividing both sides by 0.3
[tex]\frac{0.3x}{0.3}=\frac{36}{0.3}\\x=120[/tex]
Hence,
There are 120 students in the choir.
JODJODODODODODOOODODODDOOOODODODOD
Answer:
thx for the free points
Step-by-step explanation:
1. The population of Gainesville is 4500 in 2000. The population grows by 8% each
year. What was the population of Gainesville in 2015?
2. In 1990, there were 5000 albino tigers in the world. That number is decreasing by 7%
each year. How many albino tigers were there be in 2012?
Helppp please
Answer:
You need help with both or can I just help with one ?
Step-by-step explanation:
Answer:
14,275
1013
Step-by-step explanation:
1: To get the population in the year 2001 we would have to multiply 4500 by 1.08. To get the population in 2002 we would have to multiply: 4500(1.08)(1.08) or 4500(1.08)^2
Therefore you can write the following equation
4500(1.08)ⁿ where n is the number of years
we need is in 2015 and so n=15 so we have
4500(1.08)¹⁵=14274.5 which you should probably round to 14275
The second one is very similar to the first
to get from 1990 to 1991 you would multiply 5000*.93
so our equation would be
5000(.93)ⁿ where n is the number of years
1990-2012 is 22 so we have
5000(.93)²²=1012.96 which rounds to 1013
Which line is the graph of y= 1/2 x + 1?
Line A
Line B
Line C
Line D
Answer:
Answer: Line B
Step-by-step explanation:
Graph of a Function
We are given the function
[tex]y = \frac{1}{2}x+1[/tex]
To plot the graph of the function, we'll give x some random values:
x={-2,0,2}
For x=-2
[tex]y = \frac{1}{2}(-2)+1=-1+1=0[/tex]
Point (-2,0)
For x=0
[tex]y = \frac{1}{2}(0)+1=0+1=1[/tex]
Point (0,1)
For x=2
[tex]y = \frac{1}{2}(2)+1=1+1=2[/tex]
Point (2,2)
The line that passes through all the points computed above is Line B
Answer: Line B
Describe the rotations that map the figure onto itself
Please help i give brainliest
Answer:
minutes
Step-by-step explanation:
Let x be the time in the beginning (in minutes).
Given: The track team is trying to reduce their time for a relay race.
First they reduce their time by t^1=2.1 minutes.
Then they are able to reduce that time by t^2=1/10
If their final time is 3.96 minutes, then
X - t^1 - t^2 = 3.96
=> X = 3.96 + t^1 + t^2
=> X = 3.96 + 2.1 + 1/10
=> X = 6.16
HELPPP PLEASE!!Three friends went shopping. They each bought one pair of shoes that
cost $20 and 4 shirts that cost x dollars.
1. Write an expression that represents this situation.
2. Simplify the expression.
Answer:
1. [tex]3 (20+4x)[/tex]
2. [tex]60 + 12x[/tex]
Step-by-step explanation:
1. Let's just focus on one person at the moment. One of the friends bought a single shirt for $20, and 4 shirts that cost x dollars. Therefore, a single person's expense can be shown as:
[tex]20 + 4x[/tex]
Where x is the number of shirts the person bought.
Each of the three friends had the exact same expenses too, so we multiply this by three:
[tex]3 (20+4x)[/tex]
2. Simplifying the above equation just means multiplying each term in the parentheses by the 3 outside it, so 3 times 20 is 60, and 4x time 3 is 12x. Therefore, the simplified expression is:
[tex]60 + 12x[/tex]
Hope this helps!
Sherry can make 5 pies in 4 hours. How many hours does it take sherry to make 16 pies?
Plz hurry
Answer:12.8 hours
Step-by-step explanation:divide 5 by 4 you get 1.25 witch is one hour 15 min then you times 5 by 3 then add
Sherry make 16 pies in 12.9 hours.
What is Division method?
Division method is used to distributing a group of things into equal parts.
Given that;
Sherry can make 5 pies in 4 hours.
Now,
Since, Sherry can make 5 pies in 4 hours.
So, Sherry can make 1 pies in = 4/5 hours.
Thus, Sherry can make 16 pies in = 16 x 4/5 hours.
= 64/5 hours
= 12.9 hours
So, Sherry make 16 pies in 12.9 hours.
Learn more about the division visit:
https://brainly.com/question/24798355
#SPJ6
PLEASE HELP
URGENT!!!!!!!!!!!!!!!
Answer:
a.) 26< a 28
b.) 4
Step-by-step explanation:
a.) After looking at the age in years collum you can notice that all of ages have a difference of 2. With this you can infer that the missing number is 28.
b.) To find the mean add up all the numbers in the frequency column.
3+2+7+8+0=20
Divide that by the amount of numbers. There are 5 numbers so 20/5=4.
Hope this helps!
Two less than six times a number is the same as thirteen more than a number. Find the number.
How do I do this? It's about systems of equations.
Answer:
D.
Step-by-step explanation:
The last one has the correct variables and amounts in the right order.
12x + 9y = 120
6x + 14y = 136
rearrage the equation from standard to y = mx+b from
y - 4x = 6
Answer: y = 4x + 6
Step-by-step explanation:
Isolate y on the left by adding 4x to both sides of the equation.
In slope intercept form , now you have the slope, m = 4
And the y-intercept, b = 6
What is the value of the discrimant 2X^2-6x-1
Answer:
44
Step-by-step explanation:
D=b²-4ac=(-6)²+4×2×1)=44
Answer:
1/10x(20x^2-60x-11)
Step-by-step explanation:
Please help me and if you did thank you.
Answer:
12
Step-by-step explanation:
To find range, you subtract the largest and smallest number :)
Swetha and Abhishek have 70 stamps each. Swetha gave ▲ stamps to Abhishek.
How many stamps MORE THAN Swetha does Abhishek have now?
A. ▲
B. ▲ + ▲
C. 70 + ▲
D. ( We cannot say without knowing the number of stamps given)
find the slope of the line graphed below
Answer:
-3/4
Step-by-step explanation:
You just start at the lowest point on the graph, count how many points it goes up which is 3, then you go left 4. So you have 3/4, but because you went left it is -3/4
The rectangle on the right is a scaled copy of the rectangle on the left. Identify the
scale factor. Express your answer as a whole number or fraction in simplest form.
Answer:
Scale factor = [tex]\frac{1}{3}[/tex]
Step-by-step explanation:
Given question is incomplete; find the question in the attachment.
Scale factor = [tex]\frac{\text{Dimension of image}}{\text{Corresponding dimension of preimage}}[/tex]
Scale factor = [tex]\frac{\text{Dimension of image rectangle B}}{\text{Corresponding dimension of preimage rectangle A}}[/tex]
From the figure attached,
Length of rectangle B = [tex]\frac{20}{3}[/tex]
Length of rectangle A = 20
Scale factor = [tex]\frac{\frac{10}{3}}{10}[/tex]
= [tex]\frac{\frac{10}{3}}{10}[/tex]
= [tex]\frac{1}{3}[/tex]
Therefore, image rectangle A is dilated with by a scale factor of [tex]\frac{1}{3}[/tex].
When you work for 3 hours and get 46.50$ how much will you get working for 7 hours
Answer:
108.5
Step-by-step explanation:
46.50/3= 15.50
15.50 x 7=106.5
Answer:
You would get $ 108.50
Step-by-step explanation:
When you divide 46.50 by 3 you get 15.50 when you then multiply 7 by 15.50 you get 108.50
Hope this helps have a great day
I’m having doubts about my answer can someone help me?
Write an algebraic expression for 2 less than one-third of the points the Panthers scored.
I put (1/3•p) - 2
Is that correct?
I’ll give brainliest
make
x
the subject of the formula
p
+
x
=
t
Answer:
x = t - p
Step-by-step explanation:
p + x = t
subtract p from both sides.
x = t - p
Consider the following simplified algebraic expression.
10 x squared y + 6 x squared minus 7 y squared minus 6
Which could be the original expression?
Answer:
*dies of boredom*
Step-by-step explanation:
EH, MWAH
two functions are given below how does the graph of p compare with the graph of q
Answer:
The answer should be choice B.
Step-by-step explanation:
By using the process of elimination, you can cross out choices A and D.
According to the equation, the slope is of p(x) is smaller than q(x), thus q(x) will be steeper than q(x).
The valid answer is B because choice C is wrong.
help me with these three quesions for brainiest:)
Answer:
See below.
Step-by-step explanation:
1) Two equations are equivalent if they have the same solutions.
2) As long as two expressions [tex]a[/tex] and [tex]b[/tex] are equal, so [tex]a=b[/tex], adding the same value for both sides still makes the equation true, so
[tex]a = b[/tex]
[tex]a + c = b + c[/tex] is true.
3) As long as two expressions [tex]a[/tex] and [tex]b[/tex] are equal, so [tex]a=b[/tex], subtracting the same value for both sides still makes the equation true, so
[tex]a = b[/tex]
[tex]a - c = b - c[/tex] is true.
Can someone please help me :(
I’ll mark you as a brainliest :)!
Answer:
The photo looks blurry but Imma say its C.
Step-by-step explanation:
because the starting point is 2 and its growing by the rate of one every time.
A) I sell one piece of wood for £1000, however the price has increased by 5000% how much do I make from selling 64 pieces of wood?
B) I sell one piece of wood for £2000, however the price has increased by 5000% how much do I make from selling 64 pieces of wood?
C) I sell one piece of wood for £1000, however the price has increased by 50% how much do I make from selling 64 pieces of wood?
A) £3264000.
. £1000 increased by 5000% =£51,000
. £51,000×64=£3264000
B) £6528000
. £2000 increased by 5000% =£102,000
. £102,000×64=£6528000
Step-by-step explanation
What is the area of the real object that the scale drawing models?
Scale factor: 1:6
Area =
15 square cm
Scale drawing
Object
O A. 90 square cm
B. 15 square cm
C. 180 square cm
O D. 540 square cm
Answer: 10 ft = 10(12) = 120 inches. Area = length x width. Area = 96(120) = 11520 sq. in. An 8 inch square = 8 x 8 = 64 sq. in. 11520 divided by 64 = 180 tiles.
Step-by-step explanation:
Answer:
its 540
Step-by-step explanation:
please as thank you for whoever does it .
Answer:
a - -5.625
b - 0.625
c - 5.625
d - 0.625
What is 4.292 in word form?
Answer:
four and two hundred ninety-two thousandths.
A survey conducted by Black Flag asked whether or not the action of a certain type of roach disk was effective in killing roaches. 79% of the respondents agreed that the roach disk was effective. The number 79% is a A) parameter. B) population. C) statistic. D) sample. E) sampling distribution.
Answer: C) statistic.
Step-by-step explanation:
Population = Largest group of all the items that need to be considered in a study.Sample = Subset of population.The measure of a characteristic in a population is parameter.The measure of a characteristic in a sample is statistic.Here, 79% is a measure of proportion of respondents agreed that the roach disk was effective from the sample in he study.
So, The number 79% is a statistic.
Correct option: C) statistic
1/6 of the counters in a bag are blue,
1/2 of the counters are red.
1/3 of the counters are purple.
Which of these show the ratio of blue : red : purple?
1:1:1
1:3 : 2
1:2:3
6:2:3
Answer:
1:3:2 would be your answer
Step-by-step explanation:
Considering there are 6 marbles in the bag, 1/6 would be 1, 1/2 would be 3, and 1/3 would be 2.
The perimeter of a triangle is 22cm. If one of the sides is 9cm,find the other sides if the area of the triangle is 20.976cm2
Answer:
Third side = 8.34 cm
Step-by-step explanation:
Given that,
The perimeter of a triangle, P = 22 cm
One side of a triangle, b = 9 cm
The area of the triangle, A = 20.976 cm²
The formula for the area of a triangle is given by :
[tex]A=\dfrac{1}{2}\times b\times h\\\\h=\dfrac{2A}{b}\\\\h=\dfrac{2\times 20.976}{9}\\\\h=4.66\ cm[/tex]
Perimeter = Sum of all sides
9 cm + 4.66 cm + x = 22
x = 22 - 13.66
x = 8.34 cm
So, the third side of the triangle is 8.34 cm.