Answer: A
Step-by-step explanation:
Answer:
A. Rachel is correct; Graph S is nonproportional.
Step-by-step explanation:
Natalie and John are both saving coins in jars for a rainy day. Natalie currently has 1 1/8 jars of coins, and John has 9/14 of a jar of coins. If John gets all his coins to Natalie, how many jars of coins would she have all together?
Answer:
Natalie will have [tex]1\frac{43}{56}[/tex] jars of coins all together after receiving John's coins.
Step-by-step explanation:
Given that:
Coins Natalie have = [tex]1\frac{1}{8}[/tex] jars of coins
Coins John have = [tex]\frac{9}{14}[/tex] jars of coins
When John will give all his coins to Natalie.
Total coins Natalie have = Her coins + John's coins
Total coins Natalie have = [tex]1\frac{1}{8}+\frac{9}{14}[/tex]
Total coins = [tex]\frac{9}{8}+\frac{9}{14}[/tex]
Total coins =[tex]\frac{63+36}{56}=\frac{99}{56}[/tex]
Total coins = [tex]1\frac{43}{56}[/tex]
Hence,
Natalie will have [tex]1\frac{43}{56}[/tex] jars of coins all together after receiving John's coins.
f(x) = 4/5x - 2
Find f(3)
[?
Answer:
f(3) = 2/5
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Function NotationStep-by-step explanation:
Step 1: Define
f(x) = 4/5x - 2
f(3) is x = 3
Step 2: Evaluate
Substitute: f(3) = 4/5(3) - 2Multiply: f(3) = 12/5 - 2Subtract: f(3) = 2/5Answer: 2/5
Step-by-step explanation:
We need to replace x with 3
f(x)= 4/5*(3)-2= (12/5)-2=(12-10)/5= 2/5
900'00'9su divided by 699.4763pt
Answer:
HI
Step-by-step explanation:
WOW
A dolphin is 9 feet below the surface of the ocean. If its position can be recorded as −9 feet, what would the position of 0 represent? HURRYYYYYYYYY
Answer:
the sea line
I am guessing
Step-by-step explanation:
Answer: I think it will the surface of the water
40 points!!!
PLEASE HELP I NEED IT RN!!
Answer:
parallel lines never intersect
perpendicular lines intersect at a right angle
Step-by-step explanation:
An item on sale costs 10% of the original price. The original price was $99 what the sale price
Answer:
Step-by-step explanation:
Constance C. asked • 03/06/17. An item on sale costs 60 % of the original price. If the original price was $ 85 , what is the sale price? An item on sale costs 60 %
Write a linear function f with the values f(-4) = 0 and f (4) = 2.
Answer:
y + (1/4)(x + 4)
Step-by-step explanation:
One point on the graph is (-4, 0); another is (4, 2).
The change in x from the first point to the second is 8; this is the 'run.'
The change in y is 2 (which is 2 - 0). This is the 'rise.'
Thus, the slope of the line is m = rise / run = 2/8 = 1/4
Let's use the point-slope form of the equation of a straight line:
y - k = m(x - h). Substituting 0 for k and -4 for h, we get:
y - 0 = (1/4)(x + 4), or
y + (1/4)(x + 4)
Write an inequality for the graph.
The image is of a number line on which a line is drawn to the left of number -0.5 excluding it.
Answer:
hi .................
The new Virgo the Vampire Hunter novel is 540 pages. Skyler has read 145 pages in 5 hours. Ramon has read 124 pages in 4 hours who reads faster, Skyler or Ramon? How long will it take Ramon to read entire book if he continues to read at his current rate?
Answer:
Ramon, 16 hours
Step-by-step explanation:
The student council is trying to select a musical artist to play at the annual school dance. They polled a random sample of 150 students to see who they want to perform. The results were:
68 students selected Arianna Grande
59 students selected Luke Combs
23 students selected Rod Wave
If there are a total of 600 students in the 8th grade, what is the best approximation for how many students in the school selected Rod Wave?
a 153 students
b 77 students
c 272 students
d 92 students
Answer: d. 92
Step-by-step explanation: 150 time for equals 600. so all you gotta do is multiply 23 times 4
What is 6.25 as a percent?
Answer:
625%
Step-by-step explanation:
6.25 multipied by 100 equals 625.
Write the number three hundred sixty-five ten thousandths
Answer:
365,000
Step-by-step explanation:
Three hundred sixty five ten thousands means 3 hundred and 65 thousands
The number will be written in figures as 365,000
The hundred defines the 300 and the sixty-five ten thousands define 65,000
ten thousands is added in the number to define the nature of sixty-five.
find x if 20% of x equals 12% of (x + 20)
Answer:
x = 30
Step-by-step explanation:
We have to find x
Given that:
20% of x = 12 % of (x +20)
This can be written as:
0.2(x) = 0.12 (x + 20)
0.2x = 0.12x + 2.4
Subtracting 0.12x from both sides we get:
0.2x - 0.12x = 0.12x - 0.12x + 2.4
0.08x = 2.4
Dividing both sides by x we get:
0.08/0.08x = 2.4/0.08
x = 30
Answer:
x = 30
Step-by-step explanation:
Set up an equation:
0.2x = 0.12(x + 20)
Distribute 0.12 and solve for x:
0.2x = 0.12x + 2.4
0.08x = 2.4
x = 30
So, the answer is x = 30
Please help me! Due soon!
The quadratic [tex]3x^2+4x-9[/tex] has two real roots. What is the sum of the squares of these roots? Express your answer as a common fraction in lowest terms.
Answer:
70/9
Step-by-step explanation:
We have the quadratic:
[tex]3x^2+4x-9[/tex]
So, let’s find the roots of the quadratic. We will set the expression equal to 0:
[tex]3x^2+4x-9=0[/tex]
Testing for factors, we can see that our quadratic isn’t factorable.
So, we can use the Quadratic Formula. The quadratic formula is given by:
[tex]\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}[/tex]
In this case:
[tex]a=3, b=4,\text{ and } c=-9[/tex]
Therefore, by substitution:
[tex]\displaystyle x=\frac{-(4)\pm\sqrt{(4)^2-4(3)(-9)}}{2(3)}[/tex]
Evaluate:
[tex]\displaystyle x=\frac{-4\pm\sqrt{124}}{6}[/tex]
Simplify the square root:
[tex]\sqrt{124}=\sqrt{4\cdot31}=2\sqrt{31}[/tex]
Hence:
[tex]\displaystyle x=\frac{-4\pm2\sqrt{31}}{6}[/tex]
Reduce:
[tex]\displaystyle x=\frac{-2\pm\sqrt{31}}{3}[/tex]
So, our roots are:
[tex]\displaystyle x_1=\frac{-2+\sqrt{31}}{3}, x_2=\frac{-2-\sqrt{31}}{3}[/tex]
We want to find the sum of the squares of our two roots. So, let’s square each term:
[tex]\displaystyle (x_1)^2=\Big(\frac{-2+\sqrt{31}}{3}\Big)^2[/tex]
Square. For the numerator, we can use the perfect square trinomial patten where:
[tex](a+b)^2=(a^2+2ab+b^2)[/tex]
Therefore:
[tex]\displaystyle (x_1)^2=\Big(\frac{(-2)^2+2(-2)(\sqrt{31})+(\sqrt{31})^2}{9}\Big)[/tex]
Simplify:
[tex]\displaystyle (x_1)^2=\frac{35-4\sqrt{31}}{9}[/tex]
Similarly, for the second root, we will have:
[tex]\displaystyle (x_2)^2=\Big(\frac{-2-\sqrt{31}}{3}\Big)^2[/tex]
So:
[tex]\displaystyle (x_2)^2=\Big(\frac{(-2)^2+2(-2)(-\sqrt{31})+(-\sqrt{31})^2}{9}\Big)[/tex]
Simplify:
[tex]\displaystyle (x_2)^2=\frac{35+4\sqrt{31}}{9}[/tex]
Therefore, our sum will be:
[tex]\displaystyle (x_1)^2+(x_2)^2\\\\ \begin{aligned} &=\frac{35-4\sqrt{31}}{9}+\frac{35+4\sqrt{31}}{9}\\&=\frac{35-4\sqrt{31}+35+4\sqrt{31}}{9}\\&=\frac{70}{9}\end{aligned}[/tex]
Therefore, our final answer is 70/9.
Write an expression equivalent to 4(6x + 12), and state the property you used to write it.
Answer:
4(6x) + 4(12) Used distributive property
Step-by-step explanation:
Answer:
distributive property
Step-by-step explanation:
4(6x) + 4(12) Used distributive property
Solve the inequality for w.
5 (w – 3) < 5W + 20
Answer:
All real solutions
Step-by-step explanation:
5w - 15 < 5w + 20
subtract 5w from both sides
-15 < 20
since it is true and there are no variables left. all real solutions will make this true
Answer:
w < w + 7
Step-by-step explanation:
5w-15 < 5w+20
divide all by 5 =
w < w + 7
Does anyone know the answer
Answer:
the answer is d
Step-by-step explanation:
For 55 you times the average by the time it took and you get 55 same with kick 2 so kick 3 would be 2 seconds because 15 times 2 is 30
Find all possible values of b such that 4x^2+bx+3 can be factored?
Answer:13,7,8 but if there’s an answer choice go with 7,8
Step-by-step explanation: Assuming b is an integer, we first look at factors of 4, being 1 and 4 or 2 and 2. The factors of 3 are 1 and 3 only. So the factorisation possibilities are (x+3)(4x+1), (4x+3)(x+1) and (2x+1)(2x+3).
Expanding these we get: 4x²+13x+3, 4x²+7x+3 and 4x²+8x+3, giving values of b=13, 7 and 8
The possible values of b in the given polynomial are 7, 8 or 13.
What is a polynomial?In mathematics, a polynomial is an expression consisting of indeterminates (also called variables) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer powers of variables.
Given is a polynomial, 4x²+bx+3, we need to find all possible values of b such that 4x²+bx+3 can be factored.
4x²+bx+3
4×3=2×2×3
2×2×3 = 2×6 and 2+6 = 8
2×2×3 = 4×3 and 4+3 = 7
2×2×3 = 12×1 and 12+1 = 13
b=7, b=8, and b=13
4x²+7x+3 = (4x+3) (x+1)
4x²+8x+3 = (2x+1) (2x+3)
4x²+13x+3 = (4x+1) (x+3)
Hence, the possible values of b in the given polynomial are 7, 8 or 13.
Learn more about polynomial click;
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DON’T REPLY IF YOU DON’T WATCH THE DREAM SM
So this is a work in progress, sorry Fundy looks weird, this is their reaction to Tommy getting exiled- again
Answer:
it looks decent just give it make it more detailed otherwise it looks good
Answer:
your drawing is good but I can't understand your ques
I need help asap I will give you brainlest
Answer:
Y=2
Step-by-step explanation:
YW thanks!
fasttt ans nthis plsssssssssssssssssssssss
simplfy -3+7 ooooooooooooooooooooooooooooooooooooooooooooooooo
Answer:
Add -3 and 7. 4
Step-by-step explanation:
Uh ur welcome
Answer:
4
Step-by-step explanation:
I do it this way whenever there is a - and a - I just add them but add negative sign. IF like in this problem - and a + I subtract...
Hope this helps :3
4 water tanks can hold a total of 432.4 gallons of water. On average,
how much water can each tank hold?
Answer: 108.1 g
Step-by-step explanation:
432.4/4 = 108.1
Answer:
. umm whats the question
Step-by-step explanation:
Maria earns $40 washing 5 cars. At this rate, how much does Maria earn washing 6 cars?
Answer:
$240
Step-by-step explanation:
40 x 5 = 200
40 x 6 = 240 (basically just adding forty dollars)
Getaway Travel Agency surveyed a random sample of 454545 of their clients about their vacation plans. Of the clients surveyed, 212121 expected that they would go on 333 vacations in the next year. There are 516516516 Getaway Travel Agency clients. Based on the data, what is the most reasonable estimate for the number of Getaway Travel Agency clients who expect to go on 333 vacations in the next year? Choose 1 answer: Choose 1 answer: (Choice A) A 454545 (Choice B) B 241241241 (Choice C) C 275275275 (Choice D) D 467467
Answer:
A 454545 is the correct answer
Answer:
its 241
Step-by-step explanation:
i did it on khan
which linear function represent the table?
Answer:
Step-by-step explanation:So, if the graph is a straight line, it is the graph of a linear function. From a table, you can verify a linear function by examining the x and y values. The rate of change for y with respect to x remains constant for a linear function. This rate of change is called the slope.Mar 9, 2011
An online furniture store sells chairs for $200 each and tables for $750 each.
Every day, the store can ship a maximum of 16 pieces of furniture and must
sell at least $6000 worth of chairs and tables. If x represents the number of
tables sold and y represents the number of chairs sold, write and solve a
system of inequalities graphically and determine one possible solution.
Joshua chose a mystery number. His mystery number is a factor of 42. Which number could be Joshua's mystery number?
A). 5.
B). 3.
C). 4.
D). 9.
Answer:
c. 3
Step-by-step explanation:
5 can only have factors like 10, 15. 4 is not it because 4x10 is 40 and it cant be 42 and then 9x5 is 45. Your welcome. Pls mark brainliest :)
Dave is making cookies.
He mixes flour, butter and sugar in the ratio 6:4:1
Dave uses 160 grams of butter.
Work out how much flour and sugar Dave uses.
Answer: 240 grams of flour and 40 grams of sugar.
Step-by-step explanation: I used the rule of three to calculate the values for the flour and sugar. The common ratio that these numbers have would
be 40.
Reasoning: If the ratio is 6:4:1, then you can apply it as a rule of three. If 160 relates to 4, then x (the value of flour) will relate to 6. 160/4 = x/6, cross multiply, and x = 240. The amount of flour is 240 grams. Using the same logic, you can set another rule for the amount of sugar (represented by variable s); 160/4 = s/1. Cross multiply, and s = 40. The amount of sugar is 40 grams.
10 groups of 20 what is it
Answer:
200
Step-by-step explanation:
10*20=200.
I am not positive what you are asking but that is the answer I am able to give at this moment.
I hope I at least helped you. :)