Puedes separar los grupos en:
los que solo toman clases de piano; p
los que solo toman clases de violin: v
los que toman clases de piano y violin; 5
A) para determinar cuántos estudiantes no toman ni piano ni violin, podemos hallar el número total de estudiantes que toman clases solo de piano y los que toman solo de violín y los que toman ambas clases, de la siguiente forma:
Estudian solo piano, p = 14 - 5= 9
Estudian solo violín, v = 29 - 5 = 24
Estudian ambos: 5
Total de estudiantes que toman clases de esos instrumentos : 9 + 24 + 5 = 38
Por tanto, hay 40 - 38 = 2 estudiantes que no toman clases de piano ni violín.
B) ¿cuántos estudiantes toman clases de piano o violín?
Son los que tocan solo piano, o solo violín o ambos y los hallamos arriba: 9 + 24 + 5 = 38.
Respuesta: 38
C) ¿Cuántos estudiantes tocan solo violín?
También lo encontramos arriba: son 29 - 5 = 24
Respuesta: 24
David was thinking of a number. David divides by 3, then adds 2 to get an answer of 6. What was the original number?
Consigna 7: Una fotografía se reduce a una escala de 1:3 y
enseguida se reduce nuevamente con una escala de 1:4. ¿Cuál
es la reducción total que sufre la fotografía original?
Answer:
1/4 x 1/3 x 1/12 es la reducción sobre la foto original
A TV that usually sells for $185.47 is on sale for 20% off. If sales tax on the TV is 5%, what is the price of the TV, including tax?
Answer: The price of the TV including tax is $157.65.
Step-by-step explanation:
Can someone help please?
Answer:
Corresponding Angles Theorem
Step-by-step explanation:
Since, the angles are on the same side of the transversal, one interior angle and exterior angle.
Hence, these are corresponding angles .
PLEASE HELP!!!! WILL GIVE BRAINLIEST TO BEST ANSWER ASAP!!! TIME SENSITIVE
Answer:
12
Step-by-step explanation:
a is 12
PLSSSSS HELP ME BEST ANSWER GETS BRAINLIEST
Answer:
40
Step-by-step explanation:
basexheight= area
8x10= 80
80/2=40
pls brainliest
The degree of the polynomial: 4x²y + x2 - 2y2 is
Answer:
2nd degree.
Step-by-step explanation:
The degree is the highest exponent of a polynomial. Therefore, since the only term with an exponent is 4x²y, the degree is 2.
What percent of 32 is 10
Answer:
31.25
Step-by-step explanation:
Answer:
31.25%
Step-by-step explanation:
We can write this as a fraction:
10/32
Now you divide it to get a decimal:
10 ÷ 32 = 0.3125
0.3125 = 31.25%
Hope this helps!
The width of a room is 1/3 its length if the perimeter is 144 m find the dimensions
Graph the inequality on the number line. m≥2-3
Answer:
Step-by-step explanation:
m ≥ 2-3
m ≥ -1 (graph this on a number line)
Question 17
In asexual reproduction, 2 parents each pass copies of all of their chromosomes to the offspring.
True
False
Answer:
False
Step-by-step explanation:
Asexual reproduction is with one parent (Ex. A starfish)
Sexual reproduction is with 2 (Ex. A human)
Hope this helps!
Can please anyone help me
Answer:
y-17=5(x+2)
Step-by-step explanation:
point slope form is y-y1=m(x-x1)
y1 = y coordinate
m = slope
x1 = x coordinate
so you put in the x and y coordinates from the ordered pair into the equation
18. Find the value of x to
make the following equation
true.
(3^2)^3 x 3^x = 3^7 x 3^3/ 3^11
Step-by-step explanation:
(3²)³ × 3^x = 3⁷ × 3³/3¹¹
3⁶ × 3^x = 3¹⁰/3¹¹
3⁶ × 3^x = 3^-1
3^x = 3^-1 / 3⁶
3^x = 3^-1 × 3^-6
3^x = 3^-7
x = -7
Enter the range of values for x:
2x - 4
10
45
60
[?]
Answer: 2
Step-by-step explanation:
The range of value of x is, [tex]x>2[/tex]
Since the Length of any side of quadrilateral is always be positive.
So, [tex]2x-4[/tex] is always greater than zero.
[tex]2x-4>0\\\\2x>4\\\\x>\frac{4}{2}\\\\x>2[/tex]
Thus, the range of value of x is, [tex]x>2[/tex]
Learn more:
https://brainly.com/question/22739156
question is in the pic
Answer:
Median
Step-by-step explanation:
The median is supposed to be 86.5, not 89.
Hope it helps!
Answer:
I agree with the other person
Step-by-step explanation:
what is value of x for which the equation 9^-6 x 9^x = 1
Answer:
x=6
Step-by-step explanation:
9^-6*9^x=1
(x-6)In(9)=In(1)
Awnser
x=6
HELPPP PLSSSS I REALLY NEED HELP!!!
Answer: 108°
Step-by-step explanation:
Answer:
108Step-by-step explanation:Remember that the total amount of degrees in a pentagon is: 540, and there are 5 sides, so divide 5 by 540:
540/5 = 108
108 is your answer.
Jenny's bakery sells carrot muffins for $2 each. The electricity to run the oven is $120 per day and the cost of making one carrot muffin is $1.40. How many muffins must be sold each day to break even? How many days will it take to break even?
Answer:
200 days
Step-by-step explanation:
2m=120+1.4m
0.6m=120
m=200
divide by 0.6
The price of a video game was reduced from $70.00 to $40.00. By what percentage was the price of the video game reduced? Justify your answer.
Whoever gets it correct will get brainliest
Answer:
Step-by-step explanation:
Percent change=100(final-initial)/initial
100(40-70)/70=-3000/70
approximately -42.86%
the table below shows the speed of a falling object that every second within the first 5 seconds of its downward motion based on the relationship between speed and time that the same will suggest which equation can be used to find the speed of the object at t seconds A. 8=t/32 B. S=32t C. S=32-t D. s=t+32
Answer:
B. s = 32t
Step-by-step explanation:
The equation would be in the form of s = mt.
Where, m = rate of change
Find rate of change using any two values given in the table, say (1, 32) and (2, 64)
Rate of change (m) = ∆s/∆m = (64 - 32)/(2 - 1) = 32/1 = 32
✔️To write the equation, substite m = 32 into s = mt
s = 32t
A particle travels 24.6 km in 30 minutes. Find the
speed of the particle in
(i) km/h,
(ii) m/s.
Answer:
See the solutions below
Step-by-step explanation:
Given data
Distance = 24.6km
in meters= 24.6*1000= 24600m
time= 30 minutes
in seconds= 30*60= 1800
int hours= 0.5 hour
speed of the particle in
(i) km/h= 24.6/0.5= 49.2 km/h
(ii) m/s.= 24600/ 1800= 13.66 m/s
x + 3y = 1
5x +6y = 14
Answer:
1. X = 1 - 3y
2. -5/6x + 7/3
Those are the answers to the problems
Can someone help and please make sure it’s right :)
The value of a car decreases by 5% each year.
Sophie bought a car two years ago for £10000
Work out the value now
15)
If a rectangle has a length of 16 centimeters and a width of 20 centimeters, what is the area?
A)
36 cm
B
72 cm
320 cm
D
640 cm?
E)
102,400 cm?
Answer:
efhjgsbjfdnh3tbht
Step-by-step explanation:
?xhhbhhagjctii8u5yegvjutiio
Find the values of p and g such that
4x² + 12x = 4(x + p)^2-q
Answer:
q=8xp+4p²-12x
Step-by-step explanation:
its easy
peter had 8 blue , 3 red and 5 green pencils. what fraction of the pencils were blue?20 points!!!
Answer:
1/2
Step-by-step explanation:
You take the number of blue pencils and divide it by the total # of pencils.
hope this helps! :D
You earn $11 per hour working at a grocery store during the summer. The function p(x)=11x represents the amount you earn for working x hours.
a. You work 18 hours. How much do you earn?
b. How many hours do you have to work to earn $275?
plz help me!!!
Answer:
A. $198 and B. 25
Step-by-step explanation:
11 × 18 is 198, which is the first answer.
If you take 275 and divide it by 11, you get how many hours you have worked, which would be 25. :)
Answer:
a. $198
b. 25 hours
Step-by-step explanation:
a. You earn $11 per hour, and so if you work 18 hours, you multiply "11 x 18" to find out how much money you would make during that time period.
b. To find out how many hours you are required to work to be paid $275, you simply need to divide by 11, seeing as how that is how much you would be paid per hour. So, the equation would look like this: "275/11 = 25"
Solve: 2/3(y+2)-5/6(y-1)=5/4(y-3)-4
please solve quickly :)
Answer:
y=7
Step-by-step explanation:
I don't know how to evaluate an algebraic expression. How can I evaluate an algebraic expression?
Answer:
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. if it's 6÷x=3, do 6÷3=2 to get the value of x. 6÷2=3.