Answer:
70:101 70 is 69% of 101
Step-by-step explanation:
Since he had 30 phones and bought 70, he totals with 101 phones. Since 70/101 is 69, 70 is 69% of 101
Ok well good luck! Have a good day!A textbook store sold a combined total of 363 sociology and biology textbooks in a week. The number of sociology textbooks sold was two times the number of biology textbooks sold. How many textbooks of each type were sold?
Biology textbooks: 121
Sociology textbooks: 242
Please help me with question 20. Thank you.
Answer:
B=208.72
Step-by-step explanation:
June 22
July: 22+ 22x (1+10%) = 46.2
Auq: 46.2+ 22 (1+10%) x (1+10%)= 72.82
Sep: 72. 82+ 22 (1+10%)³= 102.102
Oct: 102.102 + 22 x(1+10%)⁴= 134.3122
Nov: 134.3122 + 22×(1+10%)⁵= 169.74342
Dec:169.74342 +22(1×10%)⁶ =208.717762
=208.72
The calulation of Compound interest )
what’s the answer to this problem , figure out the area and perimeter of this triangle
2x + 3v= 13
4x-V= -2
Solve the simultaneous equations
Answer:10
Step-by-step explanation:
1. Determine whether 11, 60, and 61 can be the measures of the sides of a triangle. If so,
classily the triangle as acute, right, or obtuse. Justify your answer.
Answer:
C
Step-by-step explanation:
irst check if the triangle is right.
If the square of the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right.
longest side = and ( )² = 12
2² + ( )² = 4 + 8 = 12
Thus the triangle is right → C
need help!!!!!!!!!!!
The ordered pair is a solution to the system of equations
Verify
[tex]2x+y=-5\\2(-3)+1=-5\\(-6)+1=-5\\-5=-5\\LS=RS[/tex]
[tex]4x+2y=-10\\4(-3)+2(1)=-10\\-12+2=-10\\-10=-10\\LS=RS[/tex]
A construction company is building a wall. The company can build 30 cm of the wall per minute. After 40 minutes three forth of the wall is completed. How many meters is the wall?
The total meters in the wall which is build by a construction company at a rate of 30 cm of the wall per minute, is 16 meters.
What is the relation between work and time?The total time taken is inversely proportional to the rate of work. If a unit of work is done in total n number of days, then the total work done in a day can is,
W=1/n
A construction company is building a wall. The company can build 30 cm of the wall per minute. In 40 minutes the total cm of wall build by company is,
n=40/30
n=1200 cm
n=12 m
After 40 minutes, three fourth of the wall is completed, which is equal to the 12 meters. Thus, the total meter of the wall is,
(3/4)x=12
x=(12x4)/3
x=16 m
Thus, the total meters in the wall which is build by a construction company at a rate of 30 cm of the wall per minute, is 16 meters.
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HELP MEE :)) PLEASEEE <3
[tex]v = \pi {r}^{2} h[/tex]
[tex]v = 3.14 \times {2}^{2} \times 3[/tex]
[tex]v = 37.68 \: {cm}^{3} [/tex]
Volume of the rectangular prism:[tex]v = lwh[/tex]
[tex]v = 6 \times 5 \times 7[/tex]
[tex]v = 210 \: {cm}^{3} [/tex]
Total volume:[tex]v = 37.68 + 210[/tex]
[tex]v = 247.68 \: {cm}^{3} [/tex]
cylinder:
pi r^2 h
=3.14*2^2*3
=37.68 cm^3
prism:
whl
=6*5*7
=210 cm^3
all together:
=247.68 cm^3
Answer any of the questions you dont have to do all but it would help a lot <3
Answer:
DIY
Step-by-step explanation:
Although I would like to help you, you would have to do this yourself.
All you need to do is:
1. Use a ruler and measure the distance from the first location to the second location. *make sure to use the inch side.
2. Distance times 170. *Your product will be in mi( unit).
PLESSE HELP IM BEGGING
Answer:
the measure of F is 24
Step-by-step explanation:
1. 180-90=90-66=24
Please help I am a student with ADHD and dyscalculia and all I got left to do for the school year is math Help me with this question if you can
Match the following
1. gallon
2.1 kiloliter
3.1 pint
4.1 liter
5.1 cup
6. 1 quart
A.4 quarts
B.1,000 liters
C. 8 ounces
D.2 cups
E.1,000 milliliters
D.2 pints
Answer:
1. A. 1 gallon = 4 quarts
2. B. 1 kiloliter = 1,000 liters (hint for remembering is that kilo- means thousand)
3. D. 1 pint = 2 cups
4. E. 1 liter = 1,000 milliliters
5. C. 1 cup = 8 oz
6. D. 1 quart = 2 pints
Step-by-step explanation:
Best of luck with the school year, you can do it!
I need help solving this: ³√1,331
Answer: 11
Step-by-step explanation:
Answer:
443.666
Step-by-step explanation:
because i used a caulculator boiiiiiiii
What rule is used to create this sequence
You start at (-4, -5). You move up 7 units. Where do you end?
Answer:
(-4, 2)
Step-by-step explanation:
add the numbers 197,203 and 423 in two ways fast
Answer:
there you go
have a good day
Mai gathers a random sample of 30 students at her school and asks them whether they would be willing to start and end the school day 1 hour later than usual. 27 of the students agree that this would be a good idea. Mai goes to the principal and says, "Exactly 90% of all of the students in the school think it’s a good idea to start and end the school day an hour later than usual!"
What is wrong with this statement?
The statement given by Mai to principal is wrong because of it using the word "exactly" in her statement.
Why do we do sampling?We do sampling so that we don't have to work on entire population of items but only on that sample in a way that we can predict information about population.
Most of the times, it isn't possible in real world to work on entire populations. Samples come out for rescue by assumptions that they will have some properties of the population pertained in them.
Thus, the sample should be taken out such that it includes data of the population as much as it can in unbiased way so as to imitate population. (assuming that we want the sample to contain the summary of the population).
So, in this case, Mai did sampling(sample of 30 students was selected) instead of working on entire population (all students of her school).
In her sample, she found that 27 out of 30 students think its a good idea to start and end the school day an hour later than usual.
So, from sample, 90% of those 30 students think it’s a good idea to start and end the school day an hour later than usual.
And yes, we can use this data to approximate or predict about the percentage of students who think it’s a good idea to start and end the school day an hour later than usual.
But we cannot surely say that it will be exactly 90%.
The only statement we can give about the population is:
Almost (or such unsure wordings) 90% of all of the students in the school think it’s a good idea to start and end the school day an hour later than usual!
Thus, the statement given by Mai to principal is wrong because of it using the word "exactly" in her statement.
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please help me
i really want to know the answer
and the explanation for this problems
Answer:
M = 4.33885225095
Step-by-step explanation:
Area of the square ABFE = 10² = 100
M = 100 - (2P + Q)
Let’s calculate 2P + Q :
The area 2P + Q = area ΔABC + area of sector ACE + area of sector BCF
Note :
ΔABC is an equilateral triangle
m∠CBF = m∠CAE = 30°
area ΔABC = (CG × AB)÷2 = (8.660254037844×10)÷2 = 43.30127018922
CG = √(10^2 - 5^2)=8.660254037844 (Pythagorean theorem)
area of sector BCF = area ΔACE = 100π ÷ 12 = (8.333333333333)π
then
Area 2P + Q = area ΔABC + area sector ACE + area sector BCF
= 43.30127018922+(100÷12)π+(100÷12)π
= 43.30127018922+ (8.333333333333)π + (8.333333333333)π
= 95.66114774905
Conclusion:
M = 100 - (2P + Q) = 100-95.66114774905 = 4.33885225095
Answer please please
Answer:
b is the answer
Step-by-step explanation:
I took the test
Answer: the answer is b . Which is the second choice ( 24)
Step-by-step explanation: HOPE IT HELPS YOU .PLEASE GIVE BRAINLIEST .THANKS .
Please help, thank you!
Answer:
Correct answer is option D
Evaluate tan45degrees/sin30degrees . In your final answer, include all calculations.
Answer:
2
Step-by-step explanation:
First find out what tan45 means then what sin30 means so tan45=1 and sin30=0.5, 1/0.5=2
The evaluation tan45°/sin30° is 2.
What is a trigonometric function?The fundamental 6 functions of trigonometry have a range of numbers as their result and a domain input value that is the angle of a right triangle.
The trigonometric function is only valid for the right angle triangle and it is 6 functions which are given as sin cos tan cosec sec cot.
The trigonometric functions found in the four quadrants, as well as their graphs, domains, and differentiation and integration, will all be understood.
The trigonometric function is very good and useful in real-life problems related to the right-angle triangle.
given that tan45°/sin30°
Since tan45° is 1 and sin30° is 0.5 so
By that 1/0.5 which comes out as 2.
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You work at Dave's Donut Shop. The company has decided to redesign the box it uses to hold one dozen donuts. There are 12 donuts in one dozen. Each donut has a diameter of 3 inches and a height of 1.5 inches. The donuts in the original box stood on their side. You have been asked to design a new box that will allow the donuts to lie flat as shown. What is the circumference, in inches, of a donut?
The company has decided to redesign the box it uses to hold one dozen donuts, the circumference of a donut is 3π inches or approximately 9.42 inches (rounded to two decimal places).
What is circumference?The circumference is the distance around the edge of a circle or any circular object. It is calculated using the formula:
C = 2πr
To find the circumference of a donut, we need to first find the diameter. The diameter of each donut is 3 inches, so the radius is 1.5 inches. The circumference can then be found using the formula:
C = 2πr
where C is the circumference and π is approximately 3.14.
Substituting the radius, we get:
C = 2π(1.5) = 3π
Therefore, the circumference of a donut is 3π inches or approximately 9.42 inches (rounded to two decimal places).
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Find the value of x in the parallelogram below. Enter each line of work as an equation.
Answer:
Here is the solution...hope it helps :)
Y = 3x-2 estimate the value of x when y=3
Answer:
x = 5/3
General Formulas and Concepts:
Algebra I
Equality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityStep-by-step explanation:
Step 1: Define
Identify given.
y = 3x - 2
y = 3
Step 2: Solve for x
[Equation] Substitute in y:∴ the value of x when y = 3 is equal to 5/3, or approximately 1.67.
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Topic: Algebra I
increase 260 kg by 10% and then decease the result by 10%
Could i get a formula please
Thanks!
Answer:
follow me:)
First we have to increase it by 10%
110 multiplied by 260 divided by 100 becomes 286
Then a 10% reduction that becomes 90% 286 that becomes
286 multiplied by 90 divided by 100
257.4
Find the total surface area of this cone, leaving your answer in terms of π
The total surface area of the cone with the given radius and slant height in terms of pi is 70πcm².
What is a cone?A cone is simply a 3-dimensional geometric shape with a flat base and a curved surface pointed towards the top.
The total surface area of a cone is given by its curved surface area plus area of its base.
Total surface area = curved surface area + area of base
Total surface area = πrl + πr²
Given that;
Radius r = 5cmSlant height l = 9cmTotal surface area TSA = ?Total surface area = πrl + πr²
Total surface area = ( π × 5cm × 9cm ) + ( π × (5cm)² )
Total surface area = 45πcm² + 25πcm²
Total surface area = 70πcm²
Therefore, the total surface area of the cone with the given radius and slant height in terms of pi is 70πcm².
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Answer:
70
Step-by-step explanation:
How many terms are in the following expression
4xy + 3 - 4x+
y
30
There are 4 terms
Yw :D
Manny makes the following purchases at the store: pair of jeans for $32.65 3 t-shirts for $14.89 each pair of sneakers for $39.99 the store is having a promotional sale where 10% is taken off of each customer’s total purchase before tax. the sales tax is 8%. if manny paid $114.03 , then he _____ for his purchase. a. paid $5.63 too little b. paid $3.28 too little c. paid the correct amount d. paid $8.45 too much
If manny paid $114.03 for the items purchased , then he paid the correct amount .
What is the total cost?
The first step is to determine the total cost of all the items purchased.
Total cost = $32.65 + (3 x $14.89) + $39.99 = $117.02.
Now, determine the cost after the promotional sale: (100 - 10%) x $117.02 = $105.32
The last step is to determine the total cost after tax: (1.08) x 105.32 = $114.03
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Answer:c
Step-by-step explanation:
trust
A triangular prism is shown. a cylinder is cut out of the center of the prism. the triangular base has side lengths of 14 and 10 units. the heights of both the cylinder and prism are 8 units. the cylinder has a diameter of 5 units. which expression represents the volume, in cubic units, of the shaded region of the composite figure? one-half(14)(10)(8) – π(2.52)(8) one-half(14)(10)(8) π(2.52)(8) one-third (one-half)(10)(8)(14) – π(2.52)(8) one-third (one-half)(10)(8)(14) π(2.52)(8)
The expression that represents the volume, in cubic units, of the shaded region of the composite figure is: A. One-half(14)(10)(8) – π(2.52)(8).
ExpressionGiven:
Base side length=14 and 10 units
Height=8 units
Diameter=5 units
Hence:
Expression= 1-( half 14)(10)(8) - π(2.52)(8)
Expression=1-(7) (10)(8) - π(2.52)(8)
Expression=1- (560)- 63.33
Expression=-559-63.33
Expression=-622.33
Therefore the expression that represents the volume, in cubic units, of the shaded region of the composite figure is: A. One-half(14)(10)(8) – π(2.52)(8).
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Answer:
A
Step-by-step explanation:
edge
29 POINTS PLEASE I NEED THIS ANSWER
A laboratory received 400 g of radioactive radon and 16 days later 25 g of the radioactive remained. What is the halflife of the radon? [Recall: half-life is the length of time it takes a substance to decay to half of its mass]
Answer:
death they die because of radioactivity
Step-by-step explanation:
Answer:death they die because of radioactivity
Step-by-step explanation:
I need to know the formula for this graph
Answer:
y=x+5
Step-by-step explanation: