Answer:
Percent increase
1. [tex]60[/tex] %
2. [tex]50[/tex] %
3. [tex]74.42[/tex] %
4. [tex]11.46[/tex] %
5. [tex]220[/tex] %
Step-by-step explanation:
1. $5 to $8
[tex]\frac{8-5}{5} * 100 = 60[/tex] %
2. From 20 students to 30 students
[tex]\frac{30-20}{20} * 100 = 50[/tex] %
3. From 86 books to 150 books
[tex]\frac{150-86}{86} * 100 = 74.42[/tex] %
4. From $3.49 to $ 3.89
[tex]\frac{3.89-3.49}{3.49} * 100 = 11.46[/tex] %
5. From 5 mile to 16 mile
[tex]\frac{16-5}{5} * 100 = 220[/tex] %
The ratio of the measure of the three angles of a triangle is 3:4:8. Find the mesure of the large angle
Answer:
96°
Step-by-step explanation:
Ratio of angles :
3 : 4 : 8
Sum of angles in a triangle = 180°
The value of the largest angle = angle with the largest ratio
This is the value of the angle with ratio 8
Sum of ratio : (3 + 4 + 8) = 15
Hence,
(8 / 15) * 180°
(8 * 180°) / 15
1440 / 15
= 96°
A school district currently has 12,000 students. Based on declining enrollment figures, the number of students in the school district is expected to decline by 5% each year. Which of the following functions represents the number of students, S, in the school district after n years?
Answer:
S(n) = 12,000(–0.05)n
Step-by-step explanation:
The function that represents the number of students, S, in the school district after n years is [tex]S=12000(0.95)^n[/tex]
Original population , P = 12000
Rate of decline, r = 5%
r = 5/100
r = 0.05
The number of years = n
The population of students after n years will be given by the formula:
[tex]S =P(1-r)^n[/tex]
Substitute r = 0.05 and P = 12000 into the formula above
[tex]S=12000(1-0.05)^n\\\\S=12000(0.95)^n[/tex]
The function that represents the number of students, S, in the school district after n years is [tex]S=12000(0.95)^n[/tex]
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Given a set of data with the Regression Line: y = 3.5x + 18.5
What is the residual value for the ordered pair (100, 370)?
Answer:
1.5
Step-by-step explanation:
[tex]y=3.5*100+18.5=368.5\\rv=370-368.5=1.5[/tex]
Solving factored equations. Does anybody have an example problem that they can show me?
Answer:
is this what you mean or something else?
Whats 2-(-4) as an addition equation
Answer:
2+4
Two negatives cancel out for a positive. Think: subtraction is just finding the difference, the total difference between them would be the same as doing 2 + 4, or 6
Can one of yallz answer this ????????? >:D
Answer:
(0,3) x=0 and y=3
1/3x = 5 - 1/3x what is the solution of this equation?
2x - 15 = 0 x = 15/2 aka 7.5
Hope this helps!
-zomba
With 15 5/6 lbs of grain stored in the barn, Mrs.Levins will use 3 3/4 lbs to feed the goats.After feeding the horse's, 5 2/3 lbs of grain remains.How many pounds of grain were used to feed the horses?
Answer:
6 5/12
Step by step: Subtraction 15 5/6 - 3 3/4 = 12 1/2 - 5 2/3 = 6 5/12
dfdhdbdgjkf,gdg help pls :)
Answer:
-0.8375
Step-by-step explanation:
You decide to buy a custom frame for a painting which measures 4 by 6 inches. If the framing material costs $2 per inch, what is the total cost of framing material?
Answer:
6 x 4 = 24 x $2 = $48
Step-by-step explanation:
The total cost of the rectangular frame is C = $240.
What is rectangle?A rectangle is a two-dimensional shape in which the opposite sides are parallel and equal to each other and all four angles are right angles.
Given that, a painting measures 4 by 6 inches, the framing material costs $2 per inch,
We need to find the total cost of framing material
The perimeter is given by:
P = 2x(L + W)
In this case, we know that the frame is 6 inches by 14 inches, then the perimeter will be:
P = 2x(6in + 14in)
P = 2x20in = 40in
Since, the framing material costs $6 per inch, then the total cost of the frame will be:
cost = 40x$6 = $240
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What is the domain of y = tan x? A. (–∞, ∞) B. C. all D. all
Given:
The function is
[tex]y=\tan x[/tex]
To find:
The domain of the given function.
Solution:
We know that, domain is the set of x-values or input values.
We have,
[tex]y=\tan x[/tex]
[tex]y=\dfrac{\sin x}{\cos x}[/tex]
The functions sin x and cos x are defined for all real values of x. So, the function tan x is defined for all real values of x except those value for which cos x = 0.
So, domain is [tex]-\infty<x<\infty, x\neq \dfrac{\pi}{2}+n\pi[/tex].
Note: All options are incorrect.
Answer:
C
Step-by-step explanation:
all x≠pi/2+pi n
7-x=-2
find the variable
Answer:
Step-by-step explanation:
7-x=-2
-x=-2-7
-x=-9
x=9
i need help with geometry
Answer:
x = 119, y = 55
Answer:
x = 119°
y = 55°
Step-by-step explanation:
y + 125 = 180 {linear pair}
y = 180 - 125
y = 55°
Sum of all the angles of quadrilateral = 360
x + 55 + 72 +114 = 360
x + 241 = 360
x = 360 - 241
x = 119°
A cyclist rode 2.75 miles in 0.4 hours.How fast was she going in miles per hour.At this rate, how long will it take her to go 5.5 miles?
Answer:
Its 12.5 miles per hour.
Step-by-step explanation:
Distance covered by cyclist=3.75 miles. Time =0.3 hours. Speed =3.75÷0.3=12.5
Choose all of the expressions that are equivalent to 1/4 + 7/8. A. 2/8+7/8 B. 4/16+15/16 C. 8/24+21/24 D. 7/32+28/32 E. 10/40+35/40
Answer:
A & E are correct. I have the same question as you.
Step-by-step explanation:
Just trust me its a and e
Solve the system of linear equations by substitution. y=2x-3 y=-x+9
Answer:
x=4, y=5. (4, 5).
Step-by-step explanation:
y=2x-3
y=-x+9
----------
2x-3=-x+9
2x-(-x)-3=9
2x+x=9+3
3x=12
x=12/3
x=4
y=2(4)-3=8-3=5
2. Find the distance between point A and point B.
5 units
6 units
7 units
8 units
a) ¿Cómo varia el volumen de una piramide en relación a su altura si el área de la base no cambia?
Answer:Step-by-step explanation:
Answer:
si cambia su volumen cada vez se pone mas fina la piramide
can someone help me on this ???
Answer:
x=4x-16 is what you get after you distribute
Step-by-step explanation:
2 by 2 is 4
2 by 8 is 16
I urgently need help!!!!
Answer:
yes
Step-by-step explanation: The Hypotenuse-Leg Theorem states that two right triangles are congruent if and only if the hypotenuse and a leg of one right triangle are congruent to the hypotenuse and a leg of the other right triangle.
What is the answer –0.32 = g − 1.42
Answer:
g= -1.74
Hope this helped :)
is this a function or not
Answer: neither are functions
Step-by-step explanation:
The circumference of a circle is 8.85cm.
Find the length of the diameter.
Give your answer rounded to 2 DP
Answer:
The formula for finding the Circumference of a circle is: C = πd where d represents the diameter of the circle. The formula may also be written: C = 2πr where r is the radius of the circle. Example 1: The diameter of a circle is 16 cm.
Step-by-step explanation:
jayfeather friend me
brainliest
2.82
If I spend 40$ on 5 pounds on concrete. What is the unit rate in dollars per pound
I need the answer and please explain how unit rate works cause I don't know lol
Answer:
8$/lb
Step-by-step explanation:
because 8 x 5 is 40 there for each pound would be 8$ if there are 5 pounds
How many apples, each of which weighs 2 ounces, are needed to balance three 2-pound weights? Do this problem carefully.
Answer:
48
Step-by-step explanation:
3x32=96
96/2=48
This is out 3 marks but I’ve only got one can anyone work this out using your method Thankyou xx
Answer:
11,904
Step-by-step explanation:
The equation for simple interest is as follows
PV(1+it)
plug in our values and get
9600(1+.08*3)
9600(1+.24)
9600*1.24=11,904
Help I need one more number but I have no clue what it is!!!!!!!!!!!!!
Answer:
The point of intersection with the x axis are (-2,0) and (8,0)
Step-by-step explanation:
given circle equation x²+y² = 25
x² + y² = r²
r is the radius.
✓(25) = 5
given the center is at (3,0) and radius of 5
(3+5,0) and (3-5,0)
(8,0) and (-2,0)
(Please heart the answer if you find it helpful, it's a motivation for me to help more people)
I need help.................
Answer:
-33 and -21
Step-by-step explanation:
-36, -33, -30, -27, -24, -21, -18
-36
-36 + 3 = -33
-33 + 3 = -30
-30 + 3 = -27
-27 + 3 = -24
-24 + 3 = -21
-21 + 3 = -18
Nancy has 1/3 of a cup of strawberries. She wants to share them with her 4 friends. How much will each of her friends get?
11 + 22x = 9 + 30x
(Please provide the steps to complete the equation)
Answer:
x = 4
PLS LOOK AT THE PIC I HAVE SENT YOU, HOPE THIS WILL HELP YOU!
Answer:
x = 1/4
Step-by-step explanation:
11 + 22x = 9 + 30x
subtract 22x from both sides
11 = 9 + 8x
subtract 9 from both sides
2 = 8x
divide both sides by 8
2/8 = x
simplify
1/4 = x