Answer:
Let the total no of girls be x
the number of boys=7:5
total no of students =20
now,
no of girls =7/5=x/20
or, 20*7=5x
or 140=5x
or,x=140/5=28
therefore the number of girls =28
Which situation illustrate that the sum of opposite numbers is zero?
A)Ian wins 18 chips on a game board and loses 18 chips on his next turn.
B) Jenna earns $15 and spends $15 on makeup.
C) Anna performs 5 consecutive forward rolls and repeats the same routine again.
D) Chris loans his sister $25 Tuesday and $25 again Wednesday.
E) Carol walks down 6 steps to reach the laundry room and up 6 steps to return to the kitchen.
Answer: I think it is E sorry if I am wrong Step-by-step explanation: she returned to the same place so it going backwards (subtracting)
Answer:
I think it's E but not 100% sure
Step-by-step explanation:
Not completely sure on this but I think it's either A or E. I'm leaning towards E more than A though.
solve the system through elimination
Answer:
x=3
y=1
Step-by-step explanation:
-2x - 7y = -13
3x + 6y = 15
3(-2x - 7y = -13) = -6x - 21y = -39
2(3x + 6y = 15) = 6x + 12y = 30
-6x - 21y = -39
---------------------- The -6x and 6x cancel out, 12 - 21 is equal to 9, 30 - 39 = -9
6x + 12y = 30
Therefore, you can say that -9y = -9 so y = 1
FInally, plug that back into either one of the original equations:
3x + 6(1) =15
3x = 9
x = 3
210, 206, 202, ... Find the 35th term.
Answer:
74,
We found out the hard way
AND THEN ONCE U HAVE THE ANSWER
FIND THE LENGTH OF AC
Answer:
AC=18
Step-by-step explanation:
To find AC, use the Pythagorean Theorem. Since the longest side (hypotenuse) is known, instead of a²+b²=c², the equation will be c²-a²=b². 12²-8²=b²
144-64=b²
80=b²
√80=√b²
8.94427191=b
That is for one of the two right triangles that make up the tent. Since there are 2 triangles, 8.94427191 only equals BC or AB. So, multiply 8.94427191×2=17.88854382 to find the length of AC.
AC= 18
please can someone help me on this!!!!!!!!
Answer:
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Answer:
C = 8.8 m
Step-by-step explanation:
Cos(25) = CB/AB = 8m / c, then c = 8m / cos(25) = 8.8 m
If it is helpful, plz give me Brainliest.
I’m about to smash my laptop with a brick please please help
Answer: y = 800
Step-by-step explanation:
3(y+200) = 3000
y+200 = 1000 (dividing 3 from both sides)
y = 800
solve for x and y please
Answer:
[tex]\Huge\boxed{x=8}\\\\\Huge\boxed{y=138}[/tex]
Step-by-step explanation:
Hello There!
Knowing that the sum of the angles in a triangle is 180
we can use this equation to solve for x
180 = 90 + 5x + 2 + 6x
Step 1 combine like terms
90 + 2 = 92
5x + 6x = 11x
now we have
180 = 11x + 92
step 2 subtract 92 from each side
180 - 92 = 88
92 - 92 cancels out
now we have
88 = 11x
step 3 divide each side by 11
11x/11 = x
88/11 = 8
we're left with x = 8
Now we plug in 8 into x for 5x + 2 so we can solve for y
5*8=40
40+2 = 42
Now we can solve for y
the angle measured 42 degrees and the angle labeled y are supplementary angles meaning that the sum of the two angles is 180
so to find y we subtract the given angle (42) from 180
180 - 42 =138 so we can conclude that y = 138
Notes: the little square represents a right angle which has a measure 90 degrees so thats where the 90 came from .
What prime factor is common to 35, 84 and 21?
Answer:
7
Step-by-step explanation:
Work out 3/5 - 1/3
In its simplest form
Work out 2/5 x 5/6
In its simplest form
[tex]3 \div 5 - 1 \div 3 = 9 - 5 \div 15 \\ = 4 \div 15 \\ \\ 2 \div 5 \times 5 \div 6 = 2 \div 6[/tex]
Hope it helps
A file that is 272 megabyte la is being downloaded. If the download is 12.9% complete, how many megabytes have been downloaded? Round your answer to the nearest tenth
Answer:
35.1 megabytes downloaded (rounded)
Step-by-step explanation:
12.9% = 0.129
272 x 0.129 = 35.088
35.088 rounded to the nearest tenth would be 35.1
PLEASE HELO ASAP ITS DUE IN 5 MIN!!!!
Answer: The second one which is x > 15
Please help! I appreciate it :)
Answer:
Step-by-step explanation:
A total of 228 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold?
Answer:
152
Step-by-step explanation:
Let x be the number of children tickets sold
2x+x=228
combine like terms
3x=228
x=76
adult tickets is two times the amount of x
2x=152
Please help me!! I hate math
Answer:
6+7= 13
Step-by-step explanation:
you replace a with 7
Which of the following represents the distance between the y-intercept and x-intercept of the line whose equation is y = 3x + 12?
1) square root 120
2) square root 160
3) square root 200
4) square root 244
Answer:
√160
Step-by-step explanation:
For y-intercept, we use y = mx + c. Comparing both, y = mx +c & y = 3x + 12
y intercept = c = 12
Point is (0, 12)
For x intercept, we use y = m(x - d). We have
y = 3x + 12 → y = 3(x - (-4))
Compare both, x intercept = d = - 4
Point is (-4, 0)
Using distance formula,
Distance = √(0-12)² + (-4-0)² = √12²+4²
Distance = √144+16 = √160
.
Find the values of a and b.
8
100%
6
b
45°
a
Answer:
i dont know sorry
Step-by-step explanation:
An ant crawls 9 feet in 7 minutes. How far can it crawl in 21 minutes and in 28 minutes? Enter your answers. Thank you!
Answer: 27 and 36
Step-by-step explanation: also a trick on how to master your nines multiplication is bye adding one 10 and subtracting 1 so look at this 9,18,27,36,45,54,63,72,81,90, do you notice the pattern. Hope this helps
Answer:
27 feet in 21 minutes and 36 feet in 28 minutesStep-by-step explanation:
Hope this helps dude
What is the volume of this sphere to the nearest hundredth?
a/4+2=6 it says to solve the equation
Answer:
16
Step-by-step explanation:
a/4+2=6 (subtract 2)
a/4 = 4 (multiply by 4)
a=16
Find the area of the triangle below, express your answer in simplest radical form.
Answer:
Look below.
Step-by-step explanation:
256√3
128√3
64√3
8√3
Credit: Yelison25 avatar
What is the sum of -64/5 and 64/5 ?
Answer and Explanation
0This is because they are both the same opposite number, and you are adding.
But, if it was, [tex]\frac{64}{5}+\frac{64}{5}[/tex] then it would be [tex]25.6[/tex] or [tex]\frac{128}{5}[/tex].
So, the answer is 0.
Hope this helps =)
Mrs.Kelso and Mr.Bonham gave each of their students a small bag of colored tiles.The students each counted the number of purple tiles they received.Thw box plots display the days for both classes.
Which Statement is best supported by the information in the box plots?
A.The data for Mrs.Kelso's class are more symmetrical than the data from Mr.Bonhams class
B.The median number of the data from Mr Bonham's classes less than the median number of the data for Mrs.Kelso's class
C.The interquartile range of the data from Mrs.Kelso's class's greater than the interquartile range of the data from Mr.Bonham's class
D.The range of the data from Mr.Bonham's class is less than the range of the data for Mrs.Kelsos class
Answer:
d
Step-by-step explanation:
square root of 112p^2
Answer:
4p√7
Step-by-step explanation:
Emily runs a hotel. She wants to hold a party in the banquet hall of her hotel. The hall has a size of 120,000 square feet. By fire code the maximum population density of the hall is 0.004 people per square foot. This includes all the people in the banquet hall. What is the maximum number of people that can attend the party if she has it in the banquet hall?
Answer:
480 People.
Step-by-step explanation:
120,000(0.004) = 480
PLEASE HELP ASAP What is the volume of this sphere to the nearest hundredth?
Answer:
882.347
Step-by-step explanation:
HURRYY PLEASE I RLLY NEED THIS AND I DONT OPEN LINKS SO DONT THINK ABT IT
What is the answer for 10r x 20?
I need help with this, and I need the explanation with the answer if possible ^^
Answer:
200r
Step-by-step explanation:
All you have to do is multiply the 10 and 20 to get 200 and then put the r after the 20, so it would look like this 200r
6v =792 how I do dat
Answer:
v = 132
Step-by-step explanation:
divide 792 by 6 to get v
Answer:
v = 132
Step-by-step explanation:
Just divide the terms by 6 and then simplify.
Find the volume. PLZ HELP MEHH I REALLY NEED THHIS ILL MARK BRANILY
Answer:
300 + 84 = 384
Step-by-step explanation:
i found the volume of each then added it together
Answer:
guy above me is correct
Step-by-step explanation:
Pls help me I have asked this question so many times if you answer I will make you brainliest and my friend so pls answer with NO LINKS!
Answer:
x=-4
Step-by-step explanation:
lol i cant explain