Answer:
Difference = 250 students
Step-by-step explanation:
Let the total number of students be x.
Given the following data;
% driving = 30%
% riding = 60%
% walking = 10%
Number of students driving = 375
First of all, we would determine the total number of students.
Total = 30/100 * x = 375
0.3x = 375
Total, x = 375/0.3
Total, x = 1250 students.
Next, we determine the number of students walking;
Walking = 10/100 * 1250
Walking = 12500/100
Walking = 125 students
Finally, we would determine many more students drive to school than walk to school;
Difference = 375 - 125
Difference = 250 students
help please !!! AAAAAA
Answer:
it's 1/3x. You step three on the x-axis and one on the y-axis. So the gradient triangle is 1/3
A number is multiplied by 4, That result is added to 12. The final number is 40.
What is the original number.
A. 2
B. 7
C.13
D.22
Answer:
Step-by-step explanation:
Answer:
the answer is 7
find the equation of the straight line which has a gradient of 3 and passes through the point (-1, 3)
Answer:
y=3x+6
Step-by-step explanation: 3=3(-1)+b
3=-3+b
+3 +3
6=b
Find the equation that has a slope of -1/8 and passes through the point (0,-4)
A. Y= 1/8x
B. Y=1/4x-4
C. Y=-1/8x-4
Answer:
Option C
Step-by-step explanation:
Given :-
The slope of the line is -1/8The line passes through (0,-4) .And we need to find out the equation of the line .We are here given slope and a point . So we can use the slope point form of the line. As ,
[tex]:\sf\implies m ( x - x_1)= y - y_1 \\\\\sf:\implies \dfrac{-1}{8}(x -0)= y - (-4) \\\\\sf:\implies \dfrac{-x}{8}= y +4 \\\\\sf:\implies \boxed{ \sf\red{y = \dfrac{-x}{8}-4}}[/tex]
Hence the option C is correct.
find the slope of the line that passes through points (-1, -10) and (-1, -2)
Answer:
undefined
Step-by-step explanation:
[tex]\boxed{slope = \frac{y1 - y2}{x1- x2} }[/tex]
☆ (x₁, y₁) is the 1st coordinate and (x₂, y₂) is the 2nd coordinate.
Slope of the line
[tex] = \frac{ - 2 - ( - 10)}{ - 1 - ( - 1)} [/tex]
[tex] = \frac{8}{0} [/tex]
(undefined)
Notice that the 2 points have the same x-coordinate of -1, which means that the line is a vertical line. Vertical lines have an undefined slope.
A box contains erasers of two
different colors: green and blue.
The ratio of green to blue is 7:5. If
there are 48 total erasers in the
box, how many total green erasers
are there?
Answer:
There will be 28 green erasers. I know that the ratio is also 28:20, so there are 20 blu erasers.
Step-by-step explanation:
I time 7 by 4 and 5 by 4 to get the new ratio. I counted the ratios to get to 48.
If a circle has an area of 144 sq. cm, what will be its area if the radius is reduced to one third?
Answer:
Step-by-step explanation:
1/3; 33.33 or 0.33
A car traveled 11.5 miles in 15 minutes. How many miles per hour was it traveling?
Answer:
46 miles per hour
Step-by-step explanation:
ِAn hour has 60 minutes. In 60 minutes, there is four 15 minutes (4*15 = 60).
So, if it travelled 11.5 miles in 15 minutes, in an hour, it travelled 11.5 * 4 = 46 miles per hour.
The miles per hour he was travelling is 46 miles.
What is the miles per hour travelled?
The first step is determine the average speed. Average speed is the total distance travelled per time.
Average speed = total distance / total time
11.5 / 15 = 0.766667 miles / per minutes
Miles travelled = average speed x time
Miles travelled = 0.766667 x 60 = 46 minutes
To learn more about average speed, please check: https://brainly.com/question/21734785
HELP PLZZ TIMED TEST 5 MIN LEFT!
Step-by-step explanation:
answer: 135 degrees for the missing side
nelda needs a wrench to fix her bike a 5/8 inch wrench was too big a 1/4 inch wrench what's the small which of the following would be bigger than 1/4 Inch wrench in smaller than the 5/8 inch wrench
Answer: 1/2
Step-by-step explanation:
PLEASE ANSWER ASAP WILL MARK BRAINLIEST!!
Compare the effects of increasing biodiversity and overpopulation on an ecosystem.
a.) An increase in biodiversity is not good for the ecosystem because it provides a variety of species. Overpopulation is good for the ecosystem because there are more individuals.
b.) An increase in biodiversity is good for the ecosystem because it provides a variety of species. Overpopulation is not good for the ecosystem because there are more individuals.
c.) Neither increasing biodiversity nor overpopulation are good for the ecosystem because they provide a variety of species and more individuals.
Answer:
B
Step-by-step explanation:
Overpopulation causes killing of animals
Answer:
B) An increase in biodiversity is good for the ecosystem because it provides a variety of species. Overpopulation is not good for the ecosystem because there are more individuals
Step-by-step explanation:
The bigger the ecosystem is, the more producers there are, which makes more consumers.
If there are too many consumers, then more populations will go extinct.
(I also had this on my quiz, ill tell you down below if I got it right)
EDITED!!: It was correct!! Have a nice day y'all! :)
6 cm = ______ mm *
50 mm = ______ cm
100 mm=_______cm
20 mm = ______ cm
5kg = ______ g *
800g = _____kg *
6000mg = ______kg *
2lit = _____ml *
75ml = ____lit *
82km = ____m
Answer:
6 cm = __6*10=60____ mm *
50 mm = _[tex] \frac{50}{10} [/tex]__=5___ cm
100 mm=__[tex] \frac{100}{10} [/tex]=10____cm
20 mm = __[tex] \frac{20}{10} [/tex]_=2_____ cm
5kg = _5*1000=5000_____ g *
800g = ____[tex] \frac{800}{1000} [/tex]=0.8___kg
6000mg = ___[tex] \frac{6000}{1000000} [/tex]=0.006___kg *
2lit = _2*1000=2000_ml *
75ml = __[tex] \frac{75}{1000} [/tex]=0.075_lit *
82km = 82*1000=82000__m
A student measures the air pressure inside her bicycle tires before and after she goes on a long bicycle ride. What will she most likely observe?
Answer:
She will see that the pressure went up, not down!
Step-by-step explanation:
1. In a closed system, The volume inside the tire shouldn't change much (the losses will be small)
2. For a closed system, the Pressure inside a bicycle tire will increase with the increase of its Temperature
3. In a long bicycle ride, the constant friction of the tire to the ground will heat up the air inside the tire, thus increasing the pressure inside the tire
Abe is going to plant 54 oak trees and 27 pine trees. Abe would like to plant the trees in rows that all have the same number of trees and are made up of only one type of tree. What is the greatest number of trees Abe can have in each row?
HELP!
Answer:
9
Step-by-step explanation:
The GCF between 54 and 27 is nine.
If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to y from the first equation is substituted into the second equation.
6x − y = 1
4x − 3y = −11
Select one:
a. 4(−6x + 1) − 3y = −11
b. 4(6x + 1) − 3y = −11
c. 4x − 3(6x − 1) = −11
d. 4x − 3(−6x − 1) = −11
Answer:
6x − y = 1 -------(1)
4x − 3y = −11 ------(2)
(1)×3
18x - 3y =3 ------(3)
4x − 3y = −11 ------(2)
(3)+(2)
18x - 3y + ( 4x - 3y) = 3+(-11)
d. 4x − 3(−6x − 1) = −11 is the answer.
find the area of this figure
Answer:
164
Step-by-step explanation:
5×8×2=80
7×12=84
84+80=164
The perimeter of a rectangular field is 332 yards. If the length of the field is 92 yd what is the width?
Answer:
The width of the rectangular field is equal to 74 yards.
General Formulas and Concepts:
Algebra I
Equality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityTerms/Coefficients
Geometry
Perimeter Formula [Rectangle]:
[tex]\displaystyle P = 2l + 2w[/tex]
Step-by-step explanation:
Step 1: Define
Identify given variables.
P = 332 yds
l = 92 yds
Step 2: Find Width
[Perimeter Formula - Rectangle] Substitute in variables:∴ the width of the field is equal to 74 yards.
___
Learn more about Geometry: https://brainly.com/question/27795993
___
Topic: Geometry
An airplane ascended at a rate of
2,000 feet per minute. What is the
altitude of the plane after 15 minutes
Answer:
the altitude of the plane is 30,000 after 15 minutes
Step-by-step explanation:
since the plane goes up 2,000 ft per minute I multiplied 2,000 by 15(the minutes) and got 30,000
1. It is a four-digit whole number.
2. Each of its digits is even.
3. Each of its digits is different.
4. The sum of its one digit and its hundreds digit is 10.
5. The sum of its tens digit and its thousand digit is 10.
6. It is greater than 7000.
7. It is divisible by 4.
8. The numeral O is not one of its digits.
9. It is divisible by 8.
10. Its hundreds digit is 6.
Answer:
8624
Step-by-step explanation:
let's write four blanks to represent the number _ _ _ _
by rule #10 we can fill in one digit
_ 6 _ _
using rule 4 we can wee that the ones digit is 4
_ 6 _ 4
We know that the thousand's digit has to be an even number greater than 7 (which leaves 8 only)
8 6 _ 4
using rule 5 we can see that the tens digit is 2
get get
8624
50 POINTS !!
PLEASE HELP
EXPLAIN HOW YOU GOT IT !!!!
ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
Answer:
Step-by-step explanation:
Hope this helps u!!
Carmen is painting a rectangular wall that is 9 feet long and 14 feet wide. What is the area that Carmen will paint?
o
A 23 square feet
B. 46 square feet
o
C. 63 square feet
D. 126 square feet
PLEASE HELP
The problem solving is on the image, 6th grade
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second.
y=-16x^2+124x+127
Answer:
Step-by-step explanation:
so when the height is zero, that's when the rocket hits the ground. The equation will have two zeros, but one would be for a negative time, or before the rocket is launched. so we only one the one after the rocket is launched.
use the quadratic formula to solve for x ( which is time)
-124 +- sqrt [ [tex]124^{2}[/tex] - 4*(-16)*(127) ] / 2 (-16)
-124 +- sqrt [15376 + 8128 ] / -32
-124 +- sqrt [23504 ] / -32
-124 +- 153.310 / -32
if we take the positive part it will become the negative time so skip that one try the negative part 1st
-124 - 153.310 / -32
-277.310 / -32
8.6659 seconds to hit the ground. ( time of flight) aka TOF
8.67 seconds ( rounded to nearest 100th)
What is the volume of the rectangular prism?
Type the answer in the boxes below.
Answer:
15 cm^3
Step-by-step explanation:
I think it's 15 because if you count, there are 30 boxes. Each box has a volume of 1/2, so you are supposed to multiply, which means 1/2x30.
1/2x30=15
I hope it's right!
Volume is a three-dimensional scalar quantity. The volume of the rectangular prism is 3.75 cm³.
What is volume?A volume is a scalar number that expresses the amount of three-dimensional space enclosed by a closed surface.
The dimension of the rectangular prism in terms of small cubes is,
Length = 5 cubesWidth = 2 cubesHeight = 3 cubesTherefore, the number of cubes that made rectangular prism are,
Number of cubes = 5 × 2 × 3 = 30 cubes.
As the length of a side of the cube is 0.5 cm, therefore, the volume of a single cube is,
Volume of a single cube = a³ = (0.5cm)³ = 0.125cm³
Since the volume of each cube is 0.125cm³, therefore, the volume of the rectangular prism will be,
Volume of prism = 30 × 0.125 = 3.75 cm³
Hence, the volume of the rectangular prism is 3.75 cm³.
Learn more about Volume:
https://brainly.com/question/13338592
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How to solve Solve 3!
Answer:
by solving 3
Step-by-step explanation:
X-7;x=23. I NEED help
Answer:
x-7=16
Step-by-step explanation:
if x=23 substitute it in the equation
so; 23-7=?
23-7=16
your answer would be 16
Answer:
my dad never returned home
5 bricklayers can lay a total of 50 bricks in 30 minutes. How many bricklayers will
be required to lay a total of 60 bricks in 18 minutes?
Answer:
First look at the number of bricks alone.
Going from 50 bricks to 60 bricks is more work, thus it will require more people. The number of people would be the ratio of the 2. Since the number must be larger, you know the numerator must be the larger of the 2 numbers, so you get 60/50
Next look at the time alone.
Going from 30 minutes to 20 minutes is more work, thus it will require more people. The number of people would be the ratio of the 2. Since the number must be larger, you know the numerator must be the larger of the 2 numbers, so you get 30/20
Now you can just multiply everything.
= 5*60/50*30/20
= 5*6/5*3/2
= 90\10
= 9.
According to the National Association of Colleges and Employers, the mean salary for a new college graduate is $45,327. A small college wants to know if the mean salary of their most recent graduates is greater than $45,327. A random sample of 10 recent graduates from the small college was selected and the mean and standard deviation of the salary for those graduates was found. With all conditions for inference met, a significance test was conducted and a p-value of 0.045 was obtained. Which of the following statements is the most appropriate conclusion using a significance level of a = 0.05?
(A) There is convincing statistical evidence that the mean salary for all recent college graduates from the small college is greater than $45,327.
(B) There is convincing statistical evidence that the mean salary for the sample of 10 college graduates from the small college is greater than $45,327.
(C) There is not convincing statistical evidence that the mean salary for all recent college graduates from the small college is greater than $45,327
(D) There is not convincing statistical evidence that the mean salary for the sample of 10 college graduates from the small college is greater than $45,327.
(E) There is not convincing statistical evidence that the graduates from this college will always eam more than $45,327.
Answer:
(A) There is convincing statistical evidence that the mean salary for all recent college graduates from the small college is greater than $45,327.
Step-by-step explanation:
According to the National Association of Colleges and Employers, the mean salary for a new college graduate is $45,327. A small college wants to know if the mean salary of their most recent graduates is greater than $45,327.
At the null hypothesis, we test if the mean salary is the expected salary of $45,327, that is:
[tex]H_0: \mu = 45327[/tex]
At the alternate hypothesis, we test if the salary is greater than the expected salary of $45,327, that is:
[tex]H_1: \mu > 45327[/tex]
With all conditions for inference met, a significance test was conducted and a p-value of 0.045 was obtained. Which of the following statements is the most appropriate conclusion using a significance level of a = 0.05?
The p-value of the test if 0.045 < 0.05, which means that there is sufficient evidence to accept the alternate hypothesis, that is, to conclude that the mean salary for all recent college graduates from the small college is greater than $45,327.
This means that the correct answer is given by option A.
PLZZZ HELP!!! Brainliest to whoever can help!!! T^T
Answer:
I think it B
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
h=2x^2
b=5x^2+4x
we know that
area of triangle (A)=1/2×b×h
=1/2×2x^2×(5x^2+4x)
=x^2(5x^2+4x)
=5x^4+4x^3 square units
Where do the parabola defined by y=-x^2+4x+1 and the line defined by y=-x+5 intersect?