Answer:
512
Step-by-step explanation:
Let the number of 7th graders in the school is x.
As three-quarters of them play at least one sport, so, the number of 7th graders who play sport = [tex]\frac 3 4 x[/tex].
Among the 7th graders who play sports, half of them play more than one sport. So, the number of 7th graders who play more than one sport [tex]= \frac 1 2\times \frac 3 4 x=\frac 3 8 x[/tex].
Among the 7th graders who play more than one sport, one-third of them play more than two sports. So, the number of 7th graders who play more than two sport [tex]= \frac 1 3\times \frac 3 8 x=\frac 1 8 x[/tex].
Among the 7th graders who play more than two sports, one-quarter of them play more than three sports.
So, the number of 7th graders who play more than three sport [tex]= \frac 1 4\times \frac 1 8 x=\frac{1}{32} x[/tex].
7th graders play more than three sports at the school= 16
[tex]\Rightarrow \frac{1}{32} x=16[/tex]
[tex]\Rightarrow x =16 \times 32[/tex]
[tex]\Rightarrow x = 512[/tex]
Hence, the total numbers of 7th graders in the school are 512.
You are a research assistant. You are tasked with writing a research paper. You spend 1 1/2 hours researching, 2 1/6 hours writing, and 3 1/2 hours editing.
How many hours do you spend on the task?
Answer:
7 1/6
Step-by-step explanation:
1 1/2 +3 1/2= 5 = 2 1/6
=
Answer:
You spent 7 1/6 hours doing the task
Step-by-step explanation:
1 1/2 (hours researching) + 2 1/6 (hours writing) = 3 2/3 (hours researching and writing)
3 2/3 (hours spent researching and writing) + 3 1/2 (hours editing) = 7 1/6 (hours doing the task)
A car wash cost $12.50 at a local car-wash place. If you leave a 20% tip, how much are you actually leaving in tip? (What is the tip in dollars?)
Answer:
$2.50tip
Step-by-step explanation:
12.50*0.20=2.50
At 5:30 a.m., a thermometer indicates the temperature is 15 degrees below zero Celsius, -15"C. At 11:00 am., a thermometer indicates the temperature is 3 degrees above zero Celsius, 3'C. What integer represents a temperature of 2 degrees below zero Celsius?
Multiple
(3x – 4)(2x²–5x+1)
Find an expression which represents the sum of (6x – 4) and (-2x + 5) in simplest terms.
Answer:
5
Step-by-step explanation:
because if you add -2x and 5 you would get 3 also if you subtract 6x-4 you would get 2x so add 2x and 3x then you would get five
Solve the magic Square *
Write the next 4 terms.
a) +8, +4,0, -4,...
expand and simplify (x-1)(x-3)
Answer:
x squared -3x-1x+4= x squared -4x+4
Harry adds 18 more toy cars to his collection is it postive or negative
Step-by-step explanation:
negative it is hope it helps
Answer:
I believe if it has the word 'adds' it's positive.
HELP PLEAAAASEE!!!!!!!!!!
Answer:
D
Step-by-step explanation:
...
A certain video game console uses 154 watt-hours of energy each hour.
The console used 276 hours last year.
How many watt-hours of energy did the console use?
Use any method to solve this problem. You must show all your work.
Then, explain your reasoning and the steps you took to solve the problem.
Answer:
42,504 watts
Step-by-step explanation:
154x276hours=42,504watts
Answer:
42504
Step-by-step explanation:
As it uses 154 watt-hours per hour, in 276 hours, it would use 42504 as we would multiply the energy usage by the amount of hours used:
154 watt-hours = 1 hour
276 hours = 42504 watt-hours
276*154 = 42504
642 x 257 what is the answer to it?
Answer:
164994
Step-by-step explanation:
Negation is the opposite (denial) of a statement. *
True
False
Answer:
True
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
A jar contains chocolate chip cookies and Anzac
biscuits. If Jim makes a selection at random from the
jar, he has a probability of selecting an Anzac
biscuit. If there are 10 chocolate chip cookies, how
many Anzac biscuits are there?
Answer:
0.20
Step-by-step explanation:
there are 4 + 6 + 10 = 20 biscuits in the jar
probability of picking a chocolate chip biscuit = 4/20 = 1/5 = 0.20
Solve the system of equations. y=4x+5 and y=3x-2, what's the solution
Answer:
x = -7 y=-23
Step-by-step explanation:
9.85 less than the product of 37 and w
Answer:
you did not give wat you wanted us to do so I would say 9.85- (37*w)
. Paris is saving to take the SAT prep course that costs $350. So far, she has saved $180, and she
adds $17 to her savings each week. How many more weeks must she save to be able to afford
the course?
Answer:
10 weeks
Step-by-step explanation:
Use the equation 180+17w=350
please help this makes no sense
Answer:
121 1/4
Step-by-step explanation:
The stock market went up 30 1/2 points, then down 90 3/4 points. The total change is equal tor 121 1/4.
What is (1x2)+85+2.86 divided by 8?
show work
Answer:
89.86
Step-by-step explanation:
1 x 2 = 2
2 + 85 = 87
87 + 2.86 =
89.86
36-3-(2-2)
What is the solution
FACTOR: 25x4y2z + 15x2y3
Answer:
(25x * 4y * 2z) + (15x * 2y^3)
10xy(20z + 3y^2)
(if you want working, just comment [too much effort lol])
The graph shows how the mass of copper
changes as the volume of the element changes
and the density remains constant.
*picture*
Which of these bests represents the rate of the
change in the mass of copper with respect to the
volume?
a.4/33 g/cm^3
b.19/41 g/cm^3
c.8 1/4 g/cm^3
d.4 4/7 g/cm^3
Answer: 8 1/4g/cm³
Step-by-step explanation:
Given the graph :
The rate of change in the mass of copper with respect to volume :
To obtain this, we find the slope or gradient of the graph:
Gradient = Δy / Δx = (y2 - y1) / (x2 - x1)
Drawing a right angled triangle on the anybpart of the line of best fit:
y2 = 40 ; x2 = 4.75 ; y1 = 16 ; x1 = 2
(y2 - y1) / (x2 - x1)
= (40 -16) / (4.75 - 2)
= 24 / 2.75
= 2400/275
= 8.727 g/cm^3
Due to unit and graph scale,, the slope is closest to 8 1/4g/cm³
Answer:
c
Step-by-step explanation:
is this equation linear or not? y = 2x²
Answer:
No this is not linear
Step-by-step explanation:
Mrs. Manzo's class has 20 girls and 25 boys. She wants to put them into
identical groups with the same number of boys and girls in each group.
What is the greatest number of groups she can make? *
Answer:
She can make up to 5 groups.
Step-by-step explanation:
We have to find the first divisible number that are divisble for each 20 and 25.
Divisible numbers of 25: 1, 5 Divisible numbers of 20: 1,4, 5, 10
Therefore 5 is the answer. GIMME BRAINLIEST PLS AND THANKS xD
10. Which list shows these numbers in order from least to greatest?
7.-3.17, 153, -29
PLZ I NEED HLP
Answer:
-29, -3.17, 153
Step-by-step explanation:
in order from least to greatest this is the list.
-29 is the number farthest below zero, and 153 is the number farthest above zero.
hello everyone.
i want to remind everyone to take a break and take care of themselves
take a minute to breath
how are you feeling
if you feel overwhelmed, you are not alone
everything will be okay
look at the seal
it's so cute
Answer
Wow, thanks.
Step-by-step explanation:
I really needed that. Maybe I shouldn't say something personal, but I've been going through a bunch of pointless stress. So thank you, I really found confort through this. I hope you have a good day too. Lots of love and I hope you are safe and happy, wherever you are. No matter who you are, thanks.
:)
(That seal is really is really cute.)
Q. What is the equation by looking at this graph?
Answer:
y=x+2
Step-by-step explanation:
slope is 1
y-int is +2
Answer:
y = 3 + 1/1
Step-by-step explanation:
First, the line passes the y-intercept at 3, so we have y = 3. But we also need the slope. Because the slope is 1/1 or 2/2, the equation would be this:
y = 3 + 1/1
I hope this helps! If you have any questions about how I got this answer please feel free to comment them!
d. Does 4 + 25 is equal to 4 + 25? Explain
[tex]4+25=2+25[/tex]
They are equal because their sums both equal [tex]29[/tex].
Answer:
4 + 25 is equal to 4 + 25
Step-by-step explanation:
they are equal because both of the equations are the same so that would mean both of the equations would be equal to each other
hope this helps
Solve to find the value for x in the linear equation: 36-4x + 5) = 12
CIE
1 Use the distributive property:
2 Use the subtraction property of equality
3. Division property of equality:
3(-4x) + 3(5) = 12
-12x + 15 = 12
- 12x + 15 - 15 = 12 - 15
-12x = -3
Intro
Answer:
[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
Given expression:
3(-4x + 5) = 12
To solve for x;
Use the distributive property to open the parentheses;
3(-4x) + 3(5) = 12
-12x + 15 = 12
then, add -15 to both sides;
-12x + 15 + (-15) = 12 + (-15)
-12x = -3
divide both sides by -12;
[tex]\frac{-12x}{-12}[/tex] = [tex]\frac{-3}{-12}[/tex]
x = [tex]\frac{1}{4}[/tex]
Please help I don't know how to do this if you answer this please explain.
⚠️⚠️⚠️⚠️⚠️⚠️⚠️
- WHATS THE NEGATIVE SLOPE??
- FIND M’S SLOPE
PLEASEEESWEEEEEEEEEEE⚠️
Answer:
Question 1: The negative slope is line j.
Question 2: M's Slope is 1/2.
Step-by-step explanation:
Question 1:
Way 1:
The negative slope is line j because it moves from left to right where the y points decrease while x is increasing.
Way 2:
Finding the slope also finds if it has a negative or a positive slope.
Line j has points (-1,3) and (0,0).
To solve for slope, you have to do (y2-y1)/(x2-x1).
To substitute the values, it gets to (0-3)/(0-(-1)).
To simplify that, it gets to -3/(0+1) which equals to -3/1. -3/1 in other words is -3.
Since the slope is a negative number, it has a negative slope.
Question 2:
To find the slope of line m, you have to find two points first.
The two points there are is (4,2) and (0,0).
Then you have to use the equation (y2-y1)/(x2-x1).
Once you find the numbers, you plug it into the equation getting (0-2)/(0-4).
To simplify that it gets to -2/-4. That equals -1/-2 once simplifying the fraction.
Since there are negatives in both numerator and denominator, the negative sign gets removed and it becomes 1/2.
Therefore, the slope for line M is 1/2.