Answer:
Step-by-step explanation:
1) $399 = 84% of the original amount
Divide both sides by 84 to get what one percent would be
$4.75 = 1%
Then multiply both sides to get one hundred percent [the original price]
$475 =100%
Use this method to do the second question
$450.50 = 85%
Divide by 85
$5.30 = 1%
Multiply by 100
$530 = original price
determine the total surface area.
Answer:
it should be 288
Step-by-step explanation:
A line is parrallel to y= 4x + 11 and intersects the point (-2,4)
Answer:
Step-by-step explanation:
Let the line 4x-y+k=0
Now 4×(-2)-4+k=0
K=12
So, the line will be 4x -y +12
Explain why the triangles are similar. Then find the value of x.
Answer:
x=12
Step-by-step explanation:
the 2 triangles are proportionately identical.
the larger one is 1/3 larger, so x would be 9 plus 1/3 of 9- 12
Show your work:
Q1.) Cathy has a prepaid cell phone. Last month she deposited $55.00 into her cell phone
account and was able to talk for 700 minutes before running out of credit. Wh is the
charge per minute on Cathy's cell phone; Round to the nearest cent and assume no other
fees apply.
Answer:
12.72 Cents Per Minute
Step-by-step explanation:
Divide 700 by $55 to get the dollars per minute
I WILL GIVE BRAINLIEST LOTS OF POINTS!!!!
Answer The Question.
Answer
88.6 cm
Step-by-step explanation:
Write the unit rate per video game. $78 for 4 video games. $ for video game. 100 points question better not be wrong or else
Answer:
78:4
Step-by-step explanation:
Help meee pleaseee or yull suffer SEVERE consequences...
A $0.25
B $0.45
C $1.35
D $2.22
Solve for x
−3x ≤−18
Answer:
x ≥ 6
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityStep-by-step explanation:
Step 1: Define
-3x ≤ -18
Step 2: Solve for x
[Division Property of Equality] Divide -3 on both sides: x ≥ 6Which equation has a slope of -4 and a y-intercept of -2?
Answer:
y=-4x-2
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept.
I need help finding area fast
Answer:
24
Step-by-step explanation:
The awnser is 24 because you have to multiple 6x4
Step-by-step explanation:
6x4=24
Even more trig ratios see attachment
Step-by-step explanation:
1. Use the Pythagorean theorem to solve for side KM:
16^2+KM^2=34^2256+KM^2=1156KM^2=900KM=302. Cosine is adjacent over hypotenuse, so cosine of M would be KM/34, or 30/34
3. Tangent is opposite over adjacent, so tangent of L will be KM/16, or 30/16
4. Sine is opposite over hypotenuse, so sine of M will be 16/34
5. KM=30, solved for in step 1.
hope this helps!!
what are angles? how do i solve them?
https://courses.lumenlearning.com/prealgebra/chapter/using-properties-of-angles-to-solve-problems/#:~:text=We%20measure%20angles%20in%20degrees,they%20are%20called%20supplementary%20angles.
Answer: do you mean how to find the degree?
Step-by-step explanation:
Count the number of sides in the polygon.
Find the total measure of all of the interior angles in the polygon
Divide the total measure of all of a regular polygon's angles by the number of its angles.
Subtract the sum of the known angles from the total measure of the angles for an irregular polygon.
it really depends
[tex] {x}^{2} - 18 < 0[/tex]
Answer
-sqrt(18)<x<sqrt(18)
Step-by-step explanation:
Factorise:(x-sqrt(18))(x+sqrt(18))<0Critical values:-sqrt18 and sqrt18Use number line or graphical methodPLEASE HELP Determine W and X in Circle M
your answer will be
w=16°
X=148°
Step-by-step explanation:
hope it helps you
have a great day!!
PLEASE HELP I WOULDVE PUT MORE POINTS BUT I GOT BANNED ON MY OTHER ACC
10 • 10 • a • a • b
Answer:
100•a²•b
Step-by-step explanation:
10•10=100
a•a=a²
and then just b
volume of cylinder in terms of pi
6cm radius
5cm height
Answer: V≈565.49
Step-by-step explanation:
V=πr2h=π·62·5≈565.48668
What is the factored form of x^2+4x-12=0
Answer:
if this is what you looking for
= 2
x = − 6
6Step-by-step explanation:
The results of a random sample of 1,000 people are recorded in Table 1. Use this data to answer the questions that follow.
people who wear corrective lenses 762
people who wear glasses: 638
people who wear contact lenses 124
What percentage of Americans would you predict wear corrective lenses?
Answer:
I think around [tex]\frac12[/tex] would be a fraction form. An exact form would literally one half 638 + 124 = 762 762 is equal to 762
Step-by-step explanation:
So therefore, 762 is your half and one half is your awnser
I believe i'm right!
A survey is conducted in order to collect a piece of specific information. The percentage of Americans who wear corrective lenses in America is 76.2%.
What is a survey?A survey is conducted in order to collect a piece of specific information from a group of people chosen from the entire population who denotes the entire population for those questions.
Given the survey was taken for 1000 people, the number of people in this survey who wear corrective lense is 762. Therefore, the ratio of the people who wear corrective lense is,
Ratio = 762/1000 = 0.762 = 76.2%
Since the people in a survey represent the entire population, therefore, the percentage of Americans who wear corrective lenses in America is 76.2%.
Learn more about Survey:
https://brainly.com/question/17373064
#SPJ2
Calculate the distance the train will travel in 3/4 hour.
Answer:
what is the speed of the train? if that is miles per hour just figure out what 75% is of that number
Step-by-step explanation:
cual es la mitad de 2,375
2 EASY QUESTIONS HELP
Answer:
a. 3 5/6
b. 5 1/7
Step-by-step explanation:
Answer:
5.83333333333
5.14285714286
Step-by-step explanation:
Aaron is playing a game in which he earns points for a correct answer and loses the same number of points for an incorrect answer. Aaron has zero points. The next question is worth 300 points. Aaron says "It doesn't matter whether I get the answer right or wrong, the absolute value of my score will be 300." Do you agree? Why or why not?
Answer:
You should agree.
Step-by-step explanation:
The absolute value if by definition "the magnitude of a real number without regard to its sign" this means if he earns 300 points on the next question. Yes Aaron's absolute value of points would be 300.
In 1-5, given: Two similar cylinders with heights of 8 and 5 respectively.
Answer:
1. The ratio of their diameters is 8/5 = 8 : 5
2. The ratio of their surface area is (8/5)²
3. The ratio of their volume is (8/5)³
4.The area of the base of the larger cylinder is 128 cm²
Step-by-step explanation:
Given that the two cylinders are similar, we have;
Two cylinders are similar when the ratio of their heights is equal to the ratio of their radii
Therefore, we have;
1. The ratio of the height of the two cylinders = 8/5 = The radio of their radii = r₁/r₂
The ratio of their diameter = D₁/D₂ = 2·r₁/2·r₂ = r₁/r₂ = 8/5
The ratio of their diameters D₁/D₂ = 8/5 = 8 : 5
2. The surface area of the cylinders = 2·π·r·h + 2·π·r²
Therefore, we have;
(2·π·r₁·h₁ + 2·π·r₁²)/(2·π·r₂·h₂ + 2·π·r₂²) = (r₁·h₁ + r₁²)/(r₂·h₂ + r₂²)
h₁ = h₂ × 8/5
r₁ = r₂ × 8/5
= (8/5)²(r₂·h₂ + r₂²)/(r₂·h₂ + r₂²) = (8/5)²
The ratio of their surface area = (8/5)²
3. The volume of the cylinder = π·r²·h
∴ The ratio of the volume = (π·r₁²·h₁)/(π·r₂²·h₂) = (8/5)³ × (π·r₂²·h₂)/(π·r₂²·h₂) = (8/5)³
The ratio of their volume = (8/5)³
4. The ratio of the area of the base of the larger cylinder to the area of the base of the smaller cylinder is (8/5)²
Therefore if the area of the base of the smaller cylinder is 50 cm², the area of the base of the larger cylinder = 50 cm² × (8/5)² = 128 cm²
Can you please help me with this I will give brainliest
Answer:
x
Step-by-step explanation:
you do your x and y on anything
Answer:15
Step-by-step explanation:
width - 6
height - 5
6 x 5 / 2 = 15
(Please tell me if I read it wrong, It's not really clear)
please help me?
John has $13. She saves $3 every day. How many days will it take John to save $28?
Answer:5 days
Step-by-step explanation:
13+3=16
16+3=19
19+3=22
22+3=25
25+3=28
find the area of the figure below
Answer:
36 inches²
Step-by-step explanation:
[tex]A=bh[/tex] where b is the base length and h is the height
The base length of the parallelogram is 12 inches and its height is 3 inches. Plug these values into the equation.
[tex]A=(12)(3)\\A=36[/tex]
Therefore, the area of the figure is 36 inches².
I hope this helps!
Answer:
yes the answer is 36in. Which mean the person is right too
What is the volume of a square prism that is 4 centimeters by 4 centimeters by 8 centimeters
Answer:
138 is the answer
Step-by-step explanation:
128 square
Calculator
1.) There are 200 total students in the 7th grade. 84 students
participate in only athletics. 56 students only participate in a music
class. The remaining students do not participate in music or athletics.
Find the percentage of each category. Round to the nearest whole
percent.
Athletics:
% Music:
% Neither:
%
Music 28%
Athletics 42%
Neither 30%
The length of the base of a triangle with a constant area varies
inversely as the triangle's height. When the base is 36 inches, the
height is 8 inches. Find the length of the base when the height is
12 inches.
Answer: 102
Step-by-step explanation:
PLEASE HELP
Write the equation that models the linear relationship.
The equation ____ models the linear relationship
(Use integers or tractions for any numbers in the
equation)