Answer:
A. 36
Step-by-step explanation:
We are given a total of 176 interviewed by Oliver and a total of 140 interviewed by Jenny. To find how many more 10th graders than 9th graders were interviewed, subtract the totals given
176 - 140 = 36
This is how we came to the answer:
We are given 70% of the 10th-grade and 30% of the 9th-grade with a total of 176 for Oliver.
While we're given 75% of the 9th-grade class and 25% of the 10th-grade with a total of 140 interviewed by Jenny
Oliver's Interviewees
10-graders
Firstly, let's find what the number of 9th-graders was interviewed by Oliver; find the percentage of the 9th-graders by the total;
70% of 176 =
Cross multiply
123.2 were 10-graders interviewed by Oliver
9th-graders
Now, to find the number of 9th-graders was interviewed by Oliver; find the percentage of the 9th-graders by the total;
30% of 176 =
Cross multiply
52.8 were 9th-graders interviewed by Oliver
Jenny's Interviewees
9th-graders
Firstly, let's find what the number of 9th-graders was interviewed by Jenney; find the percentage of the 9th-graders by the total;
75% of 140 =
Cross multiply
105 students were 9th-graders interviewed by Jenney.
10th-graders
Now, to find the number of 10th-graders was interviewed by Jenney; find the percentage of the 10th-graders by the total;
25% of 140 =
Cross multiply
35 students were 10th-graders interviewed by Jenney.
Total calculation
Use the results and sum them up by 9th-grade plus 9th-grade and 10th-grade plus 10-grade. Then subtract the amount gotten from 9th-grade away from the amount gotten from 10th-grade;
Oliver's 9th-grade = 52.8
Jenny's 9th-grade = 105
105 + 52.8 = 157.8
Oliver's 10th-grade = 123.2
Jenny's 10th-grade = 35
123.2 + 35 = 158.2
Total calculation: 158. 2 - 157.8 = 0.4
Therefore, there are 36 more 10th than 9th.
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help me please . I don't know which method to use. maybe the time=
[tex] \frac{distance}{speed} [/tex]
or....
look at the screenshot, please. (no links)
Answer: 14
Step-by-step explanation: 18 x 14 = 252
Answer:
14
Step-by-step explanation:
recall that area of figure, A= length x. breadth
and A=252
and b=18
therefore, 252= 18b
l= 252/18
l= 14
therefore p= 14
A circle has a diameter of 26 units. What is the area of the circle to the nearest hundredth of a Square unit?
Answer:
Your answer is 539.93
Step-by-step explanation:
A = pi*r²
A = pi* 13²
A = pi*169
A = 539.93
Thomas goes to school from 7:40 AM until 2:05 PM.
Part A: How many minutes does Thomas have in a school day?
Write an expression that could help you find out how many seconds are in his school day.
Answer:
part A: 6:25
Step-by-step explanation:
Answer: 385 min. and part b multiply 385 by 60
Step-by-step explanation:
you are welcome
Jackson borrows $400 with an interest rate of 1.5%. How much interest will
he pay after 4 years?
Answer:
$80 in interest for four years. She has to pay back a total of $480
Step-by-step explanation:
Original price: $__
Percent of Discount: 25%
Sale price after discount: $40
What is the original sale price?
Answer:
$53.33
Step-by-step explanation:
A whole (100%)- 25% is 0.75
x*0.75=40
/0.75 /0.75
x=53.33333
round to the 2 decimal since this is money
Therefore the original sale price was $53.33
Have a nice day and I hope this helped. :D
which of the following require that you have parallel sides
The requirement of the parallel sides is Alternate interior angles.
What is the alternate interior angle?The angle formed by the line intersecting two parallel lines is called the alternate interior angle. This two angles are equal in magnitude.
The alternate interior angles require two parallel lines to be formed. Therefore the requirement of the parallel sides is Alternate interior angles.
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4 pounds divided by 8 as a fraction
Answer:
4 pounds divided by 8 as a fraction
4/8 = 1/2
-TheUnknownScientist
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
so 4 divided by 8 can be represented in fraction for like this:
[tex]\frac{4}{8}[/tex] which can be simplified by multiplying the top and bottom by 4:
[tex]\frac{4}{8} = \frac{4 \div 4}{8 \div 4} = \frac{1}{2}[/tex] and that is the answer
Mark invests $1500 in an account that pays 5.7% interest compounded continuously. Assuming no deposits or withdrawals are made, how much money will be in the account after 10 years?
Answer:
$2,611.21
Step-by-step explanation:
A = P(1 + r/n)^nt
A = 1500(1 + 0.057/1)¹⁰
A = 1500(1.057)¹⁰
A = 1500(1.740803988528..)
A = 2611.205982792..
A ≈ $2,611.21
______________________
Where A is the total amount including interest, P is the initial amount or principle, r is the rate, n is how many times it is compounded per year, and t is the time in years.
Please help me with this homework question. No silly answers please and no bots, links, etc! I will mark brainliest to whoever gets this right. Thank you!
Answer:
T = (m × 20) + 25
(2.5 × 20) + 25 = 75
75 minutes
110 - 25 = 85
85 ÷ 20 = 4.25
4.25 kilograms
The average mass of a giraffe is approximately 1x 10^8 kilograms. The average mass of a blue whale is approximately 2x 10^6 kilograms. About how many times more mass does a giraffe have than a blue whale?
Answer:
Giraffe = 1,000 kg
Whale = 2,000,000 kg
Step-by-step explanation:
Whale has 2,000 times the mass.
Can I please get Branliest and rate, like Thank you!
i need help REALLY FAST what is the distance between the points (-1, -3 3/4) and (-1, 4 1/2) ?
Answer:
8 1/4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Algebra II
Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Identify
Point (-1, -3.75)
Point (-1, 4.5)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d
Substitute in points [Distance Formula]: [tex]\displaystyle d = \sqrt{(-1--1)^2+(4.5--3.75)^2}[/tex][√Radical] (Parenthesis) Subtract: [tex]\displaystyle d = \sqrt{(0)^2+(8.25)^2}[/tex][√Radical] Evaluate exponents: [tex]\displaystyle d = \sqrt{0+68.0625}[/tex][√Radical] Add: [tex]\displaystyle d = \sqrt{68.0625}[/tex][√Radical] Evaluate: [tex]\displaystyle d = 8.25[/tex]COME TO THIS QUESTION GIVES BRAINLIEST FOR FIRST GOOD ANSWER!
Can someone please explain this problem to me. It's only one probability problem for 30 points. Please no bad answers like I don't know, sorry I thought know, give me a moment, etc. No links please and please know what you are doing because sometimes Brainly decreases my grade instead of increases it. Thank you, correct answer gets brainliest!
Answer: 6 passwords
Step-by-step explanation:
When a child flying a kite has let out 60 meters of string, the string makes an angle of 60 degrees. How high is the kite?
Answer:
The height is: [tex]h = 51.96cm[/tex]
Step-by-step explanation:
Given
[tex]L = 60m[/tex]
[tex]\theta = 60[/tex]
Required
The height of the kite
See attachment for illustration.
To calculate height (h), we have:
[tex]\sin(\theta) = \frac{Opposite}{Hypotenuse}[/tex]
This gives
[tex]\sin(60) = \frac{h}{60}[/tex]
Make h the subject
[tex]h = 60 * \sin(60)[/tex]
[tex]h = 60 * 0.8660[/tex]
[tex]h = 51.96cm[/tex]
A rectangular prism has a length of 2cm, a height of 13cm, and a width of 9cm. What is its volume, in cubic cm?
Answer:
2 x 13 x 9 = 234 cm3 is your answer.
Step-by-step explanation:
Whenever given 3 side lengths of a rectangular prism you ALWAYS have to multiply those in order to get the volume..
pls help me what is the equation for this graph pls get it right :)
Answer: Y= 1/8x -2
Step-by-step explanation:
Y = mx+ b
Slope = y2-y1/x2-x1 = -1+2 / 8-0 = 1/8
Initial Y-Value = -2
4. Given the function g(x) = 3x - 5, find the value of g(2).
Answer:
g(2)=1
Step-by-step explanation:
g(x)=3x-5
Putting the value of x in the equation.
g(2)=3(2)-5
g(2)=6-5
g(2)=1.
I’ll give brainliest
Answer:
Step-by-step explanation:
P of red or green = (40 red+ 10 green)/ (40 red +50 yellow+10 green)
= 50/ 100= 1/2
Encuentra dos numeros tales que el doble del mayor menos la mitad del menor exceda en 15 unidades a la quinta parte de la suma de ambos
Respuesta:
12, 13
Explicación paso a paso:
Dejar,
Número más pequeño = x
Número mayor = x + 1
Expresarse matemáticamente;
2 (x + 1) - (x / 2) = ((x + 1 + x) / 5) + 15
2x + 2 - 0.5x = 0.2 (2x +1) + 15
1.5x + 2 = 0.4x + 0.2 + 15
1.5x - 0.4x = 0.2 + 15 - 2
1,1 veces = 13,2
x = 13,2 / 1,1
x = 12
x + 1 = 12 + 1 = 13
area of the right triangle?
Answer:49
Step-by-step explanation:
What is the answer to |60| ____|-60|
Answer:
=
Step-by-step explanation:
Equal too, you are finding the absolute value of both of them which means getting rid of any signs that is attached to them. 60 = 60
Answer:
|60| = |-60|
Step-by-step explanation:
| | means absolute value
The absolute value of any number is that number but in its positive form
So the absolute value of 60 is 60
The absolute value of -60 is positive 60
60 is equal to 60 therefore |60| = |-60|
can anyone help with this one?! will mark brainliest!
Answer:
D =44°
Step-by-step explanation:
Angle ACB = 2 angle ADB
So, ADB = ACB/2
= 88°/2
= 44°
please help I'll give a crown if you answer correctly.
Answer:
2) 1. 73
2. 107
3. 73
4. 107
5. 73
6. 107
7. 73
8. 107
4) 1. 46
2. 134
3. 46
4. 134
5. 46
6. 134
7. 46
8. 134
Step-by-step explanation:
Vertical, corresponding, alternate exterior, and alternate interior angles are all congruent (equal).Angles such as same side exterior and same-side interior are supplementary; meaning these angles add up to 180°.Question 9(Multiple Choice Worth 1 points)
(05.06 LC)
The net of a solid figure is shown below:
Four squares are shown side by side in a row. The second square has a square above it and a square below it. All the squares have side length equal to 4 inches
Which calculation will give the total surface area of the solid figure?
6 ⋅ 4 ⋅ 4 square inches
4 ⋅ 6 ⋅ 6 square inches
6 ⋅ 4 ⋅ 4 ⋅ 4 square inches
4 ⋅ 6 ⋅ 6 ⋅ 6 square inches
PLEASE HELP
you can use a calculator to try and multiply all of them so multiply 6x4 and then it will give you the answer then once you have that answer multiply it with the 4 im pretty sure but if not then sorry
find the area of the semicircle
Answer:
77 this answer is rounded to the nearest tenth
Step-by-step explanation:
The formula for the are of a circle is A=πr² so thats π7² which is equaled to about 153.9 since this is a semicircle you'd divide that by two giving you 76.96902.
What ordered pairs are the solutions of the system of equations shown in the graph below?
Answer:
(3,2) and (-2,7)
Step-by-step explanation:
Look for the intercepts of both graphs.
Mark me brainliest pls
Please help me on this
Answer:
A) 226.9
Step-by-step explanation:
tan80=x/40
Which graph shows a reflection of point A over the line? *
Answer:
D
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
the left point in graph B is left 2 and up 1 from the line while the right point is right 2 and down 1 making them a reflection of each other.
Complete the square
x^2+ 10x + 35
Answer:
sry i thought i knew how to do it but I can't remember
Step-by-step explanation:
Answer:
(x + 5)² + 10
Step-by-step explanation:
Given
x² + 10x + 35
To complete the square
add/ subtract ( half the coefficient of the x- term)² to x² + 10x
x² + 2(5)x + 25 - 25 + 35
= (x + 5)² + 10
Solve each by elimination
x+y =19
x - y = -7
Answer:
x = 6
y = 13
Step-by-step explanation:
x + y = 19
x - y = -7
To eliminate x, subtract ther second equation from the first
2y = 26
y = 13
To eliminate y, add the equations
2x = 12
x = 6