Answer:
No, Noah's method does not always work.
Step-by-step explanation:
Let's say we're trying to find 40% of 80 instead of 20% of 60.
If we divide 80 by 5, like Noah says, we get 16, which is not 40% of 80.
The proper solution would be to multiply the number by the percentage converted to a decimal.
In this case, it would be 80 × 0.4, which is 32.
When you try to solve 20% of 60, you can say 60 × 0.2, which also gets 16.
Answer:
No it doesn't
Step-by-step explanation:
His method never works because multiplying by does not give the same result as dividing by 5. AI Recommended Answer: To find 20% of a number, divide the number by 5. For example, 20% of 60 is 12.
Which expression is equivalent to -3(2m-1)-n?
6m-n-3
6m-n+3
-6m-n-3
-6-n+3
Susie made a large pot for her family. The pot Susie used has a capacity of 5 liters. Why could the capacity of the same pot be 5,000 milliliters?
Answer:
Because:
[tex]1 \: liter = 1000 \: milliliters[/tex]
Therefore to change from litres milliliters we multiply with 1000
[tex]5 \times 1000 = 5000[/tex]
Help me out and i also need this in like 1 hour
Answer:
%2
Step-by-step explanation:
If every year the interest rate is %2 of the 4000 that means each year 80% is paid. This means that in 10 years 800$ will be paid
4000 - 800 = 3200
what is the opposite reciprocal of 109123?
Answer: -1/109123
Step-by-step explanation:
defination to the opposite reciprocal
The reciprocal value which is same magnitude but opposite sign
reciprocal number is 1 divided by given number
From given data :
reciprocal value is 109123
opposite reciprocal value is -109123 and 1 is divided by given value then
the value is -1/109123
The coordinates of F are ?
Answer:
vi) For point F, Here, we can see that the point lies on the positive x – axis, therefore, its y – coordinate will be 0 and x – coordinate will be positive. Now, the distance of the point from the y – axis is 4 units. Hence, the coordinates of the point F can be written as F (4, 0).
Step-by-step explanation:
Answer: hope this helps ♡
The coordinates of F' are (2,11).
Step-by-step explanation:
right & left = x up & down = y
right & up = positive (+) left & down = negative (-)
F = (6,8)
4 units left = 6 - 4 (x - 4) = 2
3 units up = 8 + 3 (y + 3) = 11
F = (6,8) → (2,11)
If a polyhedron has 12 faces, and 20 edges, how many vertices does it have?
Answer:
It has 30 vertices.
Step-by-step explanation:
brainliest lang masaya nako
Two numbers have a sum of 7. When the smaller number is subtracted from twice the larger number, the result is 20. Which of the following is the largest number?:
(1): 9
(2): 11
(3): 12
(4): 15
There are two triangles satisfying angle BCA = 60 degree, AB = 9 and AC = 10 shown below:
The possible values of BC are a_1 and a_2$, as shown in the picture, with a_1
Answer:
Step-by-step explanation:
So...let's figure a2 first
a2 / sin (45.8) = 9 /sin C
a2 / sin (45.8) = 9 / [ sqrt (3) / 2 ]
a2 =sin (45.8) * 18 / sqrt 3 ≈ 7.45
And in the second case
C = 180 -60 - 105.8 ≈ 14.2°
So....by the Law of Sines again we can find a1 as
a1 / sin (14.2) = 18/sqrt 3
a1= sin (14.2) * 18 /sqrt 3 ≈ 2.55
{a1 , a2} = {2.55 , 7.45}
What is 1 1/2 using sixths
Answer:
Below
Step-by-step explanation:
1 1/2 is equal to 3 / 2
to get '6' in the denominator multiply by 3/3 ( which is just multiplying by a form of '1')
3/2 * 3/3 = (3*3) / ( 3*2) = 9 / 6 ( or 1 3/6)
Look at image below
(brainliest if the answer is correct
Group of answer choices
A
C
D
B
(Brainliest if it's correct
Answer:
Choice B
Step-by-step explanation:
2(5 x 10) top and bottom rectangles
1(10 x 6) the middle rectangle
2 ((1/2(6 x 4)) the two triangles
Sum of all the areas = 2(5 x 10) + (10 x 6) + 2((1/2(6 x 4))
This matches answer B
Answer:
B
Step-by-step explanation:
The rectangle measurements are 10 in by 5 in, and there are 2 rectangles with that measurement, so the first part is 2(5 × 10). Using the process of elimination, none of the other answer choices have that particular answer, so it's B. Hope this helps! Have a great day! :)
Lynn is cutting a roll of cookie dough into slices that are 3/8 of an inch thick. The entire roll of cookie dough is 10 1/2 inches long. How many slices of cookie dough will Lynn get from the roll?
Group of answer choices:
28
21
12
35
A composite figure is shown.
A five-sided figure with two parallel sides. The shorter one is 18 centimeters. The height of the figure is 12 centimeters. The portion from the vertex to the perpendicular height is 4 centimeters. The portion from a point to a vertical line created by two vertices is 3 centimeters.
Which of the following represents the total area of the figure?
A: 222 cm2
B: 240 cm2
C: 258 cm2
D: 294 cm2
The area of the given trapezoid, using the given dimensions, is calculated to be 150 cm2, which is not among the provided choices, hence none of them are correct.
Explanation:The figure described seems to be a trapezoid, which is a five-sided figure with two parallel sides. The formula to calculate the area of a trapezoid is (base1+base2)/2 * height. In this case, we have one base being 18 cm (the shorter parallel side), but we don't have the length of the other base. However, given the height and the two components of the unknown base, we can infer the remaining base is 7 cm (4 cm from vertex to height and 3 cm from a point to a vertical line created by two vertices). Thus, given the indices, the calculation would be: (18cm + 7cm)/2 * 12cm. Therefore, the total area of the figure is 150 cm2, which is not an option in the given choices. Hence, none of the options A, B, C, D are correct based on the provided data.
Learn more about Area of Trapezoid here:https://brainly.com/question/15640807
#SPJ2
(-3 +1/2x) + (1 +1/6x)
help i need this today!!!!!deadline by 12:00am
Answer:
2/3 (x - 3)
Step-by-step explanation:
hope this helps =)
2/3 (x-3)
Step-by-step explanation:
hope that helps!
There's one triangle satisfying angle BCA = 60 degrees, AB = 12 and AC = 10 shown below:
The only possible value of BC is a, as shown above. What is a?
Please don't round your answer. Keep it as a square root.
Answer:
see attached
Step-by-step explanation:
you need to create 2 right angle triangles
one on the left has 60° which makes it a special right angle triangle with the property of the following:
the side that's opposing the 30° angle will be 1/2 of the long side,
the side that's adjacent to the 30° angle will be √3/2 of the long side
once you know these, the rest is easy
Answer:
a = 5 + √69
Step-by-step explanation:
I am just providing another way of solving this. The answer provided by user elzny is absolutely correct and probably easier to understand. He has done a great job.
We can solve for a using the law of cosines which states that given, two sides of a triangle(say a and b) and an included angle (say C), the third side, c can be determined by the relation:
c² = a² + b² -2ab(cosC)
or
a² + b² -2ab(cosC) = c²
If we look at the triangle we see that angle C measures 60° and the two sides that include this angle are of lengths 10 and a. The third side is 12
Plugging in these values into the equation,
10² + a² - 2(10)(a)(cos 60) = 12²
100 + a² -20a(cos 60) = 144
cos 60 = 1/2
So
100 + a² - 20a (1/2) = 144
(100 - 144) + a² - 10a = 0
a² -10a -44 = 0
This is a quadratic equation which can be solved to get two values for a
The solution to this quadratic equation is done using the quadratic formula
[tex]x = \dfrac{ -b \pm \sqrt{b^2 - 4ac}}{ 2a }[/tex]
where
a = coefficient of x² = 1 in this problemb = coefficient of x = -10 in this problemc = constant = -44Plugging in these values,
[tex]x = \dfrac{ -(-10) \pm \sqrt{(-10)^2 - 4(1)(-44)}}{ 2(1) }\\\\x = \dfrac{ 10 \pm \sqrt{100 - (-176)}}{ 2 }\\\\x = \dfrac{10}{2} \pm \dfrac{\sqrt{276}}{2}}[/tex]
Factor 276 to get 276 = 4 x 69
[tex]\sqrt{276} = \sqrt{4 \cdot 69} = \sqrt{4} \cdot \sqrt{69} = 2 \sqrt{69}[/tex]
This results in
[tex]x = \dfrac{ 10 }{ 2 } \pm \dfrac{2\sqrt{69}\, }{ 2 }\\\\x = 5 \pm \sqrt{69}\\\\[/tex]
[tex]\sqrt{69}[/tex] is greater than 5 so we take only the positive component which is
[tex]5 + \sqrt{69}[/tex]
Which is the same answer as what elzny provided.
The pro of this methodology:
Direct implementation without splitting the triangle
The con:
You have to solve a quadratic equation which is not fun. But most scientific calculators can do this for you
Thanks!
20% of what number is 12
Answer: 12 is 20 % of the number 60
Step-by-step explanation:
Answer:
2.4
Step-by-step explanation:
Re-write 20%
[tex]\frac{20}{100}[/tex]
Since, finding a fraction of a number is also the same as multiplying the fraction with the number, we have:
[tex]\frac{20}{100}[/tex] of 12 = [tex]\frac{20}{100}[/tex] x 12
The answer is:
2.4
write the number 2 equivalent from as a fraction decimal or percent.
0.75
what is the equivalent fraction?
Answer: 3/4
Step-by-step explanation:
0.75 = 75/100
75/25 = 3
100/25 = 4
Therefore, 0.75 = 3/4
Answer: hope this helps ♡
¾ is equivalent to 0.75
Step-by-step explanation:
The variable q represents a positive integer. Does 3(5q+9)+5q represent a number that is greater than, less than, or equal to 4(5q+6)? Show your work.
Answer:
3(5q+9)+5q is equal to 4(5q+6)
Step-by-step explanation:
3(5q+9)+5q is equal to 4(5q+6). To show this, first expand the expressions:
3(5q+9)+5q = 15q+27+5q = 20q+27
4(5q+6) = 20q+24
Organizers of the Gasparilla Pirate Festival in Tampa estimate that the parade attracts about 6% more people each year. The function f(x)=300(1.06)^x represents the estimated number of people (in thousands) who attend the parade x years after 2020.
Find the domain and range.
What is the estimated number of people who attend the parade in 2024?
Answer:
mm
Step-by-step explanation:
(6TH GRADE)
15/7 + h = 37/7
h = 22/7.
choose the correct reasoning for why h=22/7
A. h=22/7 Because 37/7 is 22/7 more than 15/7
B. h=22/7 Because 37/7 is 22/7 less than 15/7
Answer:
Given [tex]\frac{15}{7} + h = \frac{37}{7}[/tex]
When h = [tex]\frac{22}{7}[/tex]
[tex]\frac{15}{7} + \frac{22}{7} = \frac{37}{7}[/tex]
We add 15 and 22 on the left side, because the denominators are equivalent.
15 + 22 = 37, [tex]\frac{37}{7}[/tex] = [tex]\frac{37}{7}[/tex]
So this statement is true.
That means the correct option is A.
Have a wonderful day! :-)
CAN SOMEONE PLEASE ANSWER ALL THESE FOR ME. #1,6 & 8 aren’t required
Answer:46
Step-by-step explanation:
easy math
If Paris walks 6 miles in 60 minutes, then Paris will walk how far in 110 minutes if she walks at the same speed the whole time? If necessary, round your answer to the nearest tenth of a mile.
_____miles
Answer:
11 miles
Step-by-step explanation:
6 miles/60 min = 0.1 miles per minute = 0.1x110 = 11
Type the correct answer in each box. Four number lines named graph A, graph B, graph C, and graph D are present. Their respective ranges are 19 to 27, 21 to 30, 23 to 32, and 23 to 32. Each number line has an arrow highlighted on it. The graph that correctly represents the inequality 2x > 50 is graph . The graph that correctly represents the inequality x + 6 < 32 is graph .
Answer:
B
Step-by-step explanation:
Simplify the inequality
x<26
mathhhhhhhhhhhhhhhhhhhhhhhhhhhhhh!!
Answer:
option d between 5 and 6
√25<√27>√36
Answer:
5-6
Step-by-step explanation:
A farmer is mapping out one of his fields and is placing markers to section off areas to use for different crops. He has placed marker 1 at the point (2, 1), marker 2 at the point (-3, 1), and marker 3 at the point (2, 5). If the farmer marks off a rectangular field with the fourth marker, what must the coordinates of the fourth marker be? (Please answer!)
Answer:556
Step-by-step explanation:
56875-790r4+356653x 2 / 64
Answer:
(-3,5)
Step-by-step explanation:
If you put a point on (-3,5) the square will be complete.
A group of students formed a circle during a game. The circumference of the circle was about 33.69 feet, and the diameter of the circle was 14 feet. Which expression best represents the value of x?
Answer:
Step-by-step explanation:
x
HOW IN THE WORLD DO I SHADE IN 21/32 IN A CHART?????????? DON'T DO IT FOR THE POINTS PLEASE AND ILL NEED A EXPLANATION TOO!!!!!!
Step-by-step explanation:
You have to shade all the red dots because in column wise you have to shade from 1/8 to 7/8 and in row wise you shade from 1/4 to 3/4
Find 40% of 35. Show your work or explain how you arrived at your answer.
Answer:
It's 14
Step-by-step explanation:
First divide 35 by 100 then multiply by the percentage or 40 and the answer is 14
help me with this pls :)
Answer:(9,12).
Step-by-step explanation:
To paint a house, a painting company charges a flat rate of $500 for supplies, plus $50 for each of labor.
Answer:
A=$1,500, $3,000
B=Y=50x+500 (explained below)
Step-by-step explanation:
you start with the funtion “y=mx+b”. m is the slope, and b is the y intercept. x is how far right or left the point is and y is how far up or down the point is. Then you plug in the information you know. If they charge $50 for each hour, you plug that into the slope, and plug the $500 into the y intercept because that is the initial price, no matter how long it takes them. After you plug those in, it will look like “y=50x+500”. Then you look at what A is asking, for 20 or 50 hours of labor. On the graph it show you that hours is on the x-axis, so you plug the numbers into the equation. The first one, 20, would look like “50(20)+500”. Then the simple part, you solve it. 50 times 20 is 1,000 and 1,000 plus 500 is 1,500. So if they were to work for 20 hours, it would cost $1,500. You do the same for the second one, looking like “50(50)+500” ending up to 3,000. Those are your answers for A. For B, you need to plot the line. You take the easy one, with x being 0. You plot a dot on the y-axis, at (0,500), then you need to plug a number in for the second one, lets take the first number shown on the x-axis, 10. You plug it into the formula, looking like “y=50(10)+500” ending up at “y=1,000” so you plot another dot at (10,1,000). You then take a straight edge, line up the two dots, and draw your line.
Due Tuesday Please help.
Answer:
Step-by-step explanation:
uh,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,