Answer:
[tex]\frac{31}{50}-\frac{4i}{25}[/tex]
Step-by-step explanation:
A school has 30% of girls and 70% boys. If 10% of the girls wear glasses and 20% of the boys wear glasses, what percent of all students wears glasses?
Answer:
17%
Step-by-step explanation:
If 30% of the school is girls and 10% wear glasses, that means that at least 3% of the school wears glasses. (10 percent of 30%) If 70% of the school is boys and 20% of boys wear glasses, at least 14% of the school wears glasses. (20% of 70%) If you add both of those numbers together it adds up to 17%.
Help please
- 1/2 (2-2x) + 3
Can somebody please help me
Answer:
1:90
2:70
3:70
4:30
Source:trust me bro
2. A parking lot has 68 rows with 24 parking spaces in each row. What is the total number of parking spaces?
1,632
1,502
408
272
Answer: 1,632
Step-by-step explanation:
you have to multiply 68 and 24 and when you do so, you'll get 1,632 as your answer.
Sal set a timer for eight minutes when he put the frozen pizza in the oven. when the timer went off the pizza was not done yet so he left it in the oven to continue cooking which number line shows the amount of time in minutes the pizza they have been in the oven?
Answer:
the zero to eight as I think
Sally used 5 gallons of ginger ale, 1 gallon of orange juice, and 2 gallons of pineapple juice, to make a punch for her family holiday party. How many
quarts of punch will Sally have for her party?
O 32 quarts
O 52 quarts
O 36 quarts
12 quarts
which expression represents a negative number
15 - (-26)
(-9)(-9)(-9)
-126/-6
(-12) (-24)
Answer:
15-(-26)
Step-by-step explanation:
positive is lower than negative so the remaining number will be negative.
I need help pls Simplify 6y+9+3y-7
Answer:
9y+2
Step-by-step explanation:
In 2016, the mean score on the AP Biology exam was 3.10, with a standard deviation of 1.05. The mean score on the AP US History exam was a 2.74, with a standard deviation of 1.42. What is the combined mean and standard deviation for these exams
Answer:
the combined mean and standard deviation for these exams are
mean = 5.84
standard deviation = 1.766
Step-by-step explanation:
Given that;
mean score and standard deviation of AP biology was;
x'1 = 3.10, S1 = 1.05
mean score and standard deviation of AP US History was;
x'2 = 2.74, S1 = 1.42
Now combined mean = x'1 + x'2 = 3.10 + 2.74 = 5.84
standard deviation combined = √( S1² + S2²)
= √( (1.05²) + (1.42)²)
= √( 1.1025 + 2.0164)
= √3.1189
= 1.766
Therefore
the combined mean and standard deviation for these exams are
mean = 5.84
standard deviation = 1.766
Some one help me please
Answer:
I think it would be a
Step-by-step explanation:
I think it would be a because when you divide by a negative number the sign flips
Express scientific notation (9.6 × 10^3) × (6.7 × 10^3)
Answer:
i got 6432
Step-by-step explanation:
i just put it in to my calculator
What is 1/3 divide by 1/4?
Answer:
1 1/3
Step-by-step explanation:
1/3 divided by 1/4 =
1/3 x 4/1 = 4/3
1 1/3
The value of n is a distance of 3 units from 1 1/2 on a number line.
Click on the number line to show the possible values of n.
Answer:
1 1/2
Step-by-step explanation:
Since n is 3 units from 1 1/2 you would subtract 3 - 1 1/2 to find how much more n is from 1 1/2 to get to 3. Hope this helps! :)
Answer:
1 and 3 would be correct
Step-by-step explanation:
Hii. if Lisa was going 9.2 miles from the store to her friends house then 7.9 to her grandmas house before going 5 miles to her house how far did she travel?
Answer:
¹9.2
+7.9
¹ 17.1
+5.0
22.1
21.1 miles
Chandre's mom has a budget of at most $250 for Chandre's birthday
party. She wants to rent the skating rink and invite as many friends as
possible. The skating rink charges $100 for a 3-hour party plus $12 for
each guest to rent skates and get a pizza combo from the concession
stand. How many guests can Chandre invite and stay within her mom's
budget?
Answer:
1
Step-by-step explanation:
1 person cost $112. 2 people cost $224. Chandre is one person already making room only for 1 other friend.
20 points!!!! It’s not d can someone help me?
Answer:
Iits c
Step-by-step explanation:
I sure i did it
Tony has 5 goats, 12 pigs, and 26 chickens on his farm. Write the ratio of
chickens to pigs in three ways.
Answer:
26:12, 26/12, 26 for every 12
Step-by-step explanation:
1. John looked on a map to find the distance he would be driving from Austin to New York.
The distance on the map was 580 cm. If the scale for the map was lcm = 3.1 miles, what is
the actual distance between these two places in miles?
A 17,980 miles
B. 179.8 miles
C. 1,1798 miles
D. Not Here
Answer:
580×3.1 =17980 miles is answer
3x + 1 = 3(x - 1) + 4
Simplifying
3x + 1 = 3[x + -1] + 4
Reorder the terms:
1 + 3x = 3[x + -1] + 4
Reorder the terms:
1 + 3x = 3[-1 + x] + 4
1 + 3x = [-1 * 3 + x * 3] + 4
1 + 3x = [-3 + 3x] + 4
Reorder the terms:
1 + 3x = -3 + 4 + 3x
Combine like terms: -3 + 4 = 1
1 + 3x = 1 + 3x
Add '-1' to each side of the equation.
1 + -1 + 3x = 1 + -1 + 3x
Combine like terms: 1 + -1 = 0
0 + 3x = 1 + -1 + 3x
3x = 1 + -1 + 3x
Combine like terms: 1 + -1 = 0
3x = 0 + 3x
3x = 3x
Add '-3x' to each side of the equation.
3x + -3x = 3x + -3x
Combine like terms: 3x + -3x = 0
0 = 3x + -3x
Combine like terms: 3x + -3x = 0
0 = 0
This equation is an identity, all real numbers are solutions.
Use the translation rule (x, y) (x - 2y 7) to find the image of F(-2, 6)
Answer:
Use photomath and look at each step! Sorry I would help but I’m bad at math.
Step-by-step explanation:
An airplane flies due west at 100mph through a 20 mph cross wind blowing from S780E
S780E . Determine the resultant velocity and direction of the airplane . (using vector) (please show work)
Answer:
An airplane which has airspeed of 575 hm/hr head directly east the win is blowing with a velocity of 8.20 km/hr
Step-by-step explanation:
Use the Divergence Theorem to calculate the surface integral
S
F · dS;
that is, calculate the flux of F across S.
F(x, y, z) = x2yi + xy2j + 3xyzk,
S is the surface of the tetrahedron bounded by the planes x = 0, y = 0, z = 0, and
x + 4y + z = 4.
Answer:
[tex]\frac{56}{15}[/tex]
Step-by-step explanation:
Given that [tex]\vec F(x, y, z) = x^2y \hat i + xy^2 \hat j + 3xyz \hat k[/tex]
F(x, y, z) = x^2y \hat i + xy^2 \hat j + 3xyz \hat k
The flux of \vec F across the surface S is given by
[tex]\int \int _s \vec F \cdot dS[/tex]
Where the survare S is the surface of the tetrahedron bounded by the planes x = 0, y = 0, z = 0, and x + 4y + z = 4.
Now, by using the Gauss Divergence theorem:
[tex]\int \int _s \vec{F} \cdot dS=\int \int \int _v \bigtriangledown \cdot \vec F dV[/tex]...(i)
where V is the volume enclosed by the surface S and [tex]dV=dxdydz[/tex]
\bigtriangledown \cdot \vec F = \hat i \frac {\partial \vec F}{\partial x}+\hat j \frac {\partial \vec F}{\partial y}+\hat k \frac {\partial \vec F}{\partial z}
=2xy+2xy+3xy=7xy
Putting this value in equation (i), we have
\int \int \int _v \bigtriangledown \cdot \vec F dV = \int \int \int _v (7xy)dxdydz
= [tex]7\int_{y=0}^{y=1} \int_{x=0}^{x=4-4y} \left( \int_{z=0}^{z=4-x-4y}xy\;dz\right)dxdy[/tex]
[tex]=7\int_{y=0}^{y=1} \int_{x=0}^{x=4-4y} xy(4-x-4y-0)dxdy \\\\=7\int_{y=0}^{y=1} \int_{x=0}^{x=4-4y}(4xy-x^2y-4xy^2)dxdy \\\\=7\int_{y=0}^{y=1} (2x^2y-\frac 1 3 x^3y-2 x^2y^2)|_{x=0}^{x=4-4y}dy \\\\[/tex]
[tex]=7\int_{y=0}^{y=1} (2(4-4y)^2y-\frac 1 3 (4-4y)^3y-2 (4-4y)^2y^2)dy[/tex]
[tex]=7\int_{y=0}^{y=1} (32(1-y)^2y-\frac {64}{3} (1-y)^3y-32(1-y)^2y^2)dy[/tex]
[tex]=7\int_{y=0}^{y=1} (32(1-2y+y^2)y-\frac {64}{3} (1-y^3-3y+3y^2)y-32(1-2y+y^2)y^2)dy[/tex]
[tex]=7\int_{y=0}^{y=1} \{32(y-2y^2+y^3)-\frac {64}{3} (y-y^4-3y^2+3y^3)-32(y^2-2y^3+y^4)\}dy[/tex]
[tex]=7 \{32(\frac 1 2 y^2- \frac 2 3 y^3+\frac 1 4 y^3)-\frac {64}{3} (\frac 1 2 y^2-\frac 1 5 y^5-y^3+\frac 3 4 y^4)-32(\frac 1 3 y^3-\frac 1 2 y^4+\frac 1 5 y^5)\} |_{y=0}^{y=1}[/tex]
[tex]=7 \{32(\frac 1 2 - \frac 2 3 +\frac 1 4 )-\frac {64}{3} (\frac 1 2 -\frac 1 5 -1+\frac 3 4 )-32(\frac 1 3 -\frac 1 2 +\frac 1 5 )\}[/tex]
[tex]=7\times \frac {8}{15} \\\\=\frac{56}{15}[/tex]
Hence, the flux of F across S is [tex]\frac{56}{15}[/tex].
I NEED HELP STAT
=12×0.75
Answer:
9
Step-by-step explanation:
use a calculator of just think about it
Answer:
9.00
Step-by-step explanation:
What happens when a barrel goes over the waterfall?
a. The barrel speed stays the same
b. The barrel slows down.
c. The barrel speeds up.
d. The barrel stops
PLEASE SEND HELP!! I NEED THE ANSWER.......QUICK!!! WILL GIVE THE BRAINLEST!
What’s 1/2 divided by 6 plz help
Answer:
3
Step-by-step explanation:
Because .5÷6=3
and .5 is 1/2 as a decimal
8-5(3x-7) i need help
Answer:
43 - 15x
is the answer
Answer:
-15x + 43
Step-by-step explanation:
8-5(3x-7)
8-15x+35
-15x+43
Faith's grandma is making a blanket for her bed. The blanket needs to be 4 feet wide and 6 feet long. How many square feet of blanket does Faith's grandma need to make?
A.10
B.16
C.20
D.24
Answer:
D. 24
Step-by-step explanation:
multiply length times width to get area
Find the mean, median, mode, and range of the following data.
10, 20, 30, 15, 90, 80, 35, 30, 25, 15, 60, 75, 80, 30, 45, 35, 95, 80, 80, 25, 15
Mean (average) - add all numbers up and divided by the number of addends
Mean = 46.19047619 (50)
Median - arrange numbers in numerical order, and find the one in the middle
Median = 35
Mode - number that appears the mode
Mode = 80
Range - difference between biggest and smallest number
Range = 80
~theLocoCoco
Ms. Thorson bought a board that was 14 feet long. She cuts off as many pieces as possible that are 9 inches long. What is the length, in inches, of the board that remains?
Question:
Ms. Thorson bought a board that was 14 feet long. She cuts off as many pieces as possible that are 9 inches long. What is the length, in inches, of the board that remains?
Answer: 6 inches
Step-by-step explanation:
So we know that 14 ft. Is 168 in. all we have to do now is divide.
9/168=18R6
Number of 9 inch pieces possible is 18.
What is division?The division is the process of repetitive subtraction. It is the inverse of the multiplication operation. It is defined as the act of forming equal groups. While dividing numbers, we break down a larger number into smaller numbers
Given,
length of the board = 14 feet
1 feet = 12 inches
14 feet = 168 inches
Length of the piece = 9 feet
Number of pieces cut from board
= 168/9
= 18.67
Number of 9inch pieces = 18
Hence, 18 is the number of pieces that are 9 inches long.
Learn more about division here:
https://brainly.com/question/7725040
#SPJ3
bölenin 8,bölümün 68 olduğu bir bölme işleminde bölünen sayı en fazla kaç olur
Cevap:
68 bölü 8, bundan çıkardığım şey, yanılıyorsam cevabımı sil. Ancak 68 bölü 8 = 8,5