Answer:
2.3%
Step-by-step explanation:
jdbxjdjebdudbbdjdbdbd
Help. Math Got Me Super Stumped
Answer:
x=-1
Step-by-step explanation:
I'm weird and love these types of problems.
Ok first off we need to get x alone. To do that we need to first get rid of the 7.
We can do that by adding it because you have to use the opposite operation to get rid of it.
5x - 7 (+7) = -12 (+7)
See if you add -7 + 7 you get 0 which is why you have to use the opposite.
5x = -5
To get x alone you have to divide 5 because 5 is being multiplied by x.
5x(/5) = -5(/5)
x= -1
So x= -1
If you ever need more help, don't be afraid to reach out. I hope that helps!
Answer:
I think it is -1
Step-by-step explanation:
Because -1 x 5 equals -5 and -5 - 7 equals - 12
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.
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:
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 %
the ratio of the volume of two spherical steels balls is 27:64. what is the ratio of their diameters
Answer:
16:9
Step-by-step explanation:
Thank me pleasee :Dand, New innings hidjsjs. dbsjsjjz djskskkdjd
Answer:
THANK YOU?
Step-by-step explanation:
DNSNJSMSNNFJD
Please, give me brainliest
900'00'9su divided by 699.4763pt
Answer:
HI
Step-by-step explanation:
WOW
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
Who is correct? Thanks for the help
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)
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.
Susie bought 30 cookies for $12.
How would you figure out the price per cookie? How much does one cookie cost?
Answer:
2.50 a cookie
Step-by-step explanation:
Because you divide 30/12 and it doesnt equal a whole number because its in dollars if that makes sense
Answer:
you would divide 30/12= 2.5 per cookie
Step-by-step explanation:
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;
https://brainly.com/question/11536910
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help me plz i dont understand how t=40
Answer:
t=40
Step-by-step explanation:
The sum of all angles in a triangle will always equal 180°. This means that:
(2t-42)+(4t-49)+(2t-49) = 180°
Let's solve this equation!
(2t-42)+(4t-49)+(2t-49) = 180
First we simplify what's on the left side:
2t-42+4t-49+2t-49 = 180
2t+4t+2t-42-49-49 = 180
8t-140 = 180
*Add 140 to both sides
8t = 180+140
8t = 320
Divide both sides by 8 to know what t means:
t = 320/8
t = 40
What is 6.25 as a percent?
Answer:
625%
Step-by-step explanation:
6.25 multipied by 100 equals 625.
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
Can you help me find X 2x=10? Pretty please
Answer:
5
Step-by-step explanation:
2*5 = 10
Rachel drew the two graphs below.
Graph R
On a coordinate plane, a line goes through points (0, 0) and (2, 1).
Graph S
On a coordinate plane, a line goes through points (0, 0) and (1, 2).
Rachel says that Graph R has a greater constant of variation than Graph S. Which statement explains whether Rachel is correct?
Rachel is correct; Graph S is nonproportional.
Rachel is correct; Graph R goes farther along the x-axis.
Rachel is not correct; both graphs go through the origin and have the same constant of variation.
Rachel is not correct; Graph S is steeper than Graph R.
Answer: A
Step-by-step explanation:
Answer:
A. Rachel is correct; Graph S is nonproportional.
Step-by-step explanation:
Please help ASAP
Question is in picture
Answer:
A,C,D
Step-by-step explanation:
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
Ethan has already jarred 4 liters of jam and will jar an additional 6 liters of jam every day.
How many days does Ethan need to spend making jam if he wants to jar 40 liters of jam in
all?
Answer:
how many days it i think it would be 6 days.
Step-by-step explanation:since he has already jared 4 littters you subtract 40-4 which equals 36 then do multiples of 6 till you get to 40
Answer:
6 days
Step-by-step explanation:
y = 6x + 4
40 = 6x + 4
40 - 4 = 6x
36 = 6x
36/6 = 6x/6
6 = x
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
40 points!!!
PLEASE HELP I NEED IT RN!!
Answer:
parallel lines never intersect
perpendicular lines intersect at a right angle
Step-by-step explanation:
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.
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.
(p^2-4)(9-q^2)+24pq
Answer:
-p²q² + 9p² + 4q² + 24pq - 36
General Formulas and Concepts:
Algebra I
Expanding by FOIL-ing (First Outside Inside Last)Combining Like TermsStep-by-step explanation:
Step 1: Define expression
(p² - 4)(9 - q²) + 24pq
Step 2: Simplify
Expand by FOIL-ing: 9p² - p²q² - 36 + 4q² + 24pqCombine like terms: -p²q² + 9p² + 4q² + 24pq - 36Answer:
9p^2-p^2q^2-36+4q^2=24pq
Step-by-step explanation:
multiply the parentheses
multiply the term in the first ( ) by each term in the second ( ) (FOIL)
9p^2-p^2q^2-4x9-4x(-q^2)=24pq
Multiply the numbers (multiplying two negatives = a positive )
9p^2-p^2q^2-36=4q^2+24pq
Hope that helps
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. :)
If th ere are 10,000 stu dents enrolled in the college an d the institution is funded at the rate of $300 per student unit. At the 95 % confidence level, estimate the interval th at covers the total funding of the college . for full credit, round the answer to TWO decimal places!
Complete question :
A college is funded depending on the mean number of credit units a student takes. A survey involving 16 students yielded the mean number 12 units with a standard deviation 3 units. Assume normal population
If th ere are 10,000 stu dents enrolled in the college an d the institution is funded at the rate of $300 per student unit. At the 95 % confidence level, estimate the interval th at covers the total funding of the college . for full credit, round the answer to TWO decimal places!
Answer: (35823600 , 36176400)
Step-by-step explanation:
Mean number of units = 12
Standard deviation = 3
Number of samples (n) = 10000
Fund rate = 300
Mean = 10000 * 300 * 12 = 36000000
Standard deviation = 10000^0.5 * 300 * 3 = 90000
Fir 95% C. I
Z0.05 = 1.96
Interval = mean ± 1.96 * SE
(36000000 - 1.96*90000) ; (36000000 + 1.96*90000)
(35823600 , 36176400)
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:
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