Answer:
0,3,6
hope I helped you
Are the ratios 2:1 and 8:4 equivalent?
Answer:
Yes
Step-by-step explanation:
Just like with fractions, 8:4 can be reduced to 2:1
[tex]\huge\textbf{Hey there!}[/tex]
[tex]\large\text{2 : 1}\\\\\large\text{= 2}\times\large\text{4 : }\large\text{1}\times\large\text{4}\\\\\large\text{= 8 : 4}[/tex]
[tex]\large\textsf{8 : 4}\\\\\large\textsf{= 8}\div\large\textsf{4 : 4}\div\large\textsf{4}\\\\\large\textsf{= 2 : 1}[/tex]
[tex]\large\textbf{Thus, 2:1 \& 8:4 ARE equivalent.}[/tex]
[tex]\huge\textbf{Therefore, your answer is: \boxed{\mathsf{YES!}}}\huge\checkmark[/tex]
[tex]\huge\textbf{Good luck on your assignment \& enjoy}\\\huge\textbf{your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
A pair of boots originally cost $124. Now they are on sale for 75% of the original price. What is the sale price of the boots?
Answer:
Sale Price = 31$
Step-by-step explanation:
Sale price= originally price × (1- sale percentage /100)
=124× (1- 75/100)
=124× 0.25
=31 $
100!! points
A jar contains only pennies, nickels, dimes, and quarters. There are 16 pennies, 11 dimes, and 20 quarters. The rest of the coins are nickels. There are 74 coins in all. How many of the coins are not nickels? If n represents the number of nickels in the jar, what equation could you use to find n?
Answer: 23n (nickels)
16p + 11d + 20q = 47x
x = number of coins that aren't nickels
y = number of coins in all
n = nickels
so there are 74 coins in all
70y - 47x = 23n
there are 23 nickels
lets check: 23n + 16p + 11d + 20q = 70y
Find the distance between the points (-2,-2) and (3,-3)
Distance =
Answer:
≈5.099
Step-by-step explanation:
1) the rule is:
[tex]d=\sqrt{(x_1-x_2)^2+(y_1-y_2)^2};[/tex]
2) according to the rule above, the required distance is:
[tex]d=\sqrt{(-2-3)^2+(-2+3)^2}=\sqrt{26}[/tex]
d≈5.099
for which equation is x = 1 a solution?
a: 4 - x = 1
b: 4x = 1
c: x + 3 = 4
d: x/4 = 1
Answer:
The answer is x+3=4
x+3=4
x=4-3
x = 1
x² +5+6
Whats the perimeter
Answer:
Step-by-step explanation:
x^2 + 11
How do i solve that question?
a) The solution of this ordinary differential equation is [tex]y =\sqrt[3]{-\frac{2}{\frac{3\cdot t}{8}-\frac{\sin 2t}{4}+\frac{\sin 4t}{32}-2 } }[/tex].
b) The integrating factor for the ordinary differential equation is [tex]-\frac{1}{x}[/tex].
The particular solution of the ordinary differential equation is [tex]y = \frac{x^{3}}{2}+x^{2}-\frac{5}{2}[/tex].
How to solve ordinary differential equations
a) In this case we need to separate each variable ([tex]y, t[/tex]) in each side of the identity:
[tex]6\cdot \frac{dy}{dt} = y^{4}\cdot \sin^{4} t[/tex] (1)
[tex]6\int {\frac{dy}{y^{4}} } = \int {\sin^{4}t} \, dt + C[/tex]
Where [tex]C[/tex] is the integration constant.
By table of integrals we find the solution for each integral:
[tex]-\frac{2}{y^{3}} = \frac{3\cdot t}{8}-\frac{\sin 2t}{4}+\frac{\sin 4t}{32} + C[/tex]
If we know that [tex]x = 0[/tex] and [tex]y = 1[/tex], then the integration constant is [tex]C = -2[/tex].
The solution of this ordinary differential equation is [tex]y =\sqrt[3]{-\frac{2}{\frac{3\cdot t}{8}-\frac{\sin 2t}{4}+\frac{\sin 4t}{32}-2 } }[/tex]. [tex]\blacksquare[/tex]
b) In this case we need to solve a first order ordinary differential equation of the following form:
[tex]\frac{dy}{dx} + p(x) \cdot y = q(x)[/tex] (2)
Where:
[tex]p(x)[/tex] - Integrating factor[tex]q(x)[/tex] - Particular functionHence, the ordinary differential equation is equivalent to this form:
[tex]\frac{dy}{dx} -\frac{1}{x}\cdot y = x^{2}+\frac{1}{x}[/tex] (3)
The integrating factor for the ordinary differential equation is [tex]-\frac{1}{x}[/tex]. [tex]\blacksquare[/tex]
The solution for (2) is presented below:
[tex]y = e^{-\int {p(x)} \, dx }\cdot \int {e^{\int {p(x)} \, dx }}\cdot q(x) \, dx + C[/tex] (4)
Where [tex]C[/tex] is the integration constant.
If we know that [tex]p(x) = -\frac{1}{x}[/tex] and [tex]q(x) = x^{2} + \frac{1}{x}[/tex], then the solution of the ordinary differential equation is:
[tex]y = x \int {x^{-1}\cdot \left(x^{2}+\frac{1}{x} \right)} \, dx + C[/tex]
[tex]y = x\int {x} \, dx + x\int\, dx + C[/tex]
[tex]y = \frac{x^{3}}{2}+x^{2}+C[/tex]
If we know that [tex]x = 1[/tex] and [tex]y = -1[/tex], then the particular solution is:
[tex]y = \frac{x^{3}}{2}+x^{2}-\frac{5}{2}[/tex]
The particular solution of the ordinary differential equation is [tex]y = \frac{x^{3}}{2}+x^{2}-\frac{5}{2}[/tex]. [tex]\blacksquare[/tex]
To learn more on ordinary differential equations, we kindly invite to check this verified question: https://brainly.com/question/25731911
Pleas help I’ll make most Brainly
Answer:
70%
Step-by-step explanation:
divide 21 by 30 to get .70 multiply by 100 to make percent
70% (or just move decimal two places to the right)
Answer:
70%
Step-by-step explanation:
100 ÷ 30 = 3.3333333333333
21 x 3.3333333333333/30 x 3.3333333333333 = 70/100
21/30 = 0.7
0.7 x 100 = 70%
i need help please i’m struggling
Answer:
(A) 46 seconds
Step-by-step explanation:
You can arrive at an answer to this question at least two ways:
1)Read the time from the graph.
Locate 144 on the vertical scale, just below halfway from 140 to 150. Locate the point on the graph that is at this vertical height. It is a little more than halfway between 40 and 50 on the horizontal scale.
The only answer choice in that neighborhood is t = 46 seconds.
__
2)Use the given formula, and solve it for the time.
d = 1.5t +75
144 = 1.5t +75 . . . the distance of interest is 144
69 = 1.5t . . . . . . . .subtract 75
69/1.5 = t = 46 . . . seconds
14. This week, Anita spent 3 1/2 h practicing the piano. She also spent 6 1/4 h at soccer practice and 4 1/3 h on the telephone. a) How much time, in total, did Anita spend on the piano and at soccer? b) How much more time did Anita spend at soccer than on the phone?
this is fractions
Answer: a)9 3/4 hours
B)1 11/12 hour
Step-by-step explanation:
Piano: 3 1/2 hour; 3hours 30min
Soccer: 6 1/4 hour; 6hours and 15 min
Telephone: 4 1/3 hour; 4 hours and 20 min.
Remember that in an hour there is 60 min, and 1/2 of an hour is 30 (min), 1/4 is 15(min) and 1/3 is 20(min).
a) 3hours and 30min + 6hours and 15 min
That gives us 9 hours and 45 min, which is 9 3/4 hours.
B) 6hours and 15 min — 4 hours and 20 min
That gives us 1 hour and 55 min, which is 1 11/12 hours.
I hope this helps you!
Help! The options are: proportional , not proportional
Answer: Not proportional
=======================================================
Explanation:
Let's assume the two fractions are equal.
If so, then,
[tex]\frac{0.2}{2.6} = \frac{0.3}{3.6}\\\\0.2*3.6 = 2.6*0.3\\\\0.72 = 0.78[/tex]
The last equation is false, so the first equation is false.
Therefore, the two ratios are not proportional.
-------------
Another approach:
Calculate the decimal value of each fraction
[tex]\frac{0.2}{2.6} \approx 0.07692\\\\\frac{0.3}{3.6} \approx 0.08333\\\\[/tex]
The two ratios result in different decimal values, so the two ratios are not equal, aka not proportional.
Simplify (8m - 4n) + (6m + 3n).
Answer:
14m-n
Step-by-step explanation:
Combine Like Terms:
=8m + −4n + 6m + 3n
=(8m+6m) + (−4n+3n)
=14m+−n
Round each fraction to help you estimate the solution for the following equation: 7/8 + 6/8
Answers:
1/2
1
1 1/2
2
Answer:
13/8 or 1 1/2
Step-by-step explanation:
Step 1
Since our denominators match, we can add the numerators.
7 + 6 = 13
So what's the answer so far?
13/8
Step 2
Can this fraction be reduced?
First, we attempt to divide it by 2...
No good. So next you try the next prime number, which is 3...
No good. So next you try the next prime number, which is 5...
No good. So next you try the next prime number, which is 7...
No good. So next you try the next prime number, which is 11...
No good. 11 is larger than 8. So we're done reducing.
And we're done! Here's the final answer to 7/8 + 6/8
I’ll give 25points but I NEED ANWSER NOW!!!!
A population of fish in a pond is decreasing by 4% each year. If the population starts
with 250 fish in the first year, how many fish will there be in year 9?
Round to the nearest whole fish.
Answer:
250*(0.96)^8=180 (rounded)
Step-by-step explanation:
The first year, we know there are 250. Moving on every year, we multiply the # from the previous year by 0.96, which is the same as taking 96 percent (excluding the decreasing 4%). This gives us a multiplication of 0.96 ^8, which we have to multiply by the original 250
Please help I have no idea what I’m doing
Answer:
8 is the length, and 15 is the height.
8+7 =15
8*15 = 120
-3x-4y<8 graph the inequality
please help!!
Answer:
y > [tex]\frac{3}{4}[/tex] x - 2
Step-by-step explanation:
thats the answer rearranged your graph should look like this
Emma's class has a jar of earthworms. The class measures the length of each earthworm and records the data in a line plot. What is the difference between the lengths of the shortest and the longest earthworms?
The lowest length is 4 3/4
The highest length is 6 3/4
How would I set this up to solve???
Step-by-step explanation:
refer the above attachment
Use the table in the following problem.
Which industry had the greatest percentage increase in profits as a percentage of sales between 1966 and 1974?
-Chemicals
-Petroleum
-Drugs
What was the percentage increase (to the nearest tenth)?
-13.4%
-11.8%
Answer:Petroleum = 15.32%
Drugs = 12.9%
Chemicals = 2.5%
Motor Vehicles = -56.5% (Negative)
Electrical = -18.8% (Negative)
Food = 3.7%
Step-by-step explanation:
carys had some money. She brought a dirnk for £1.55 and a piece of cake for £1.30 she now has three-quarters of her money left. how much money did she have to start with?
Answer:
£11.40
Step-by-step explanation:
She spent £1.55 + £1.30 = £2.85.
Now she has 3/4 of the original amount.
That means she spent 1/4 of the original amount.
£2.85 is 1/4 of the original amount.
The original amount is 4 × £2.85.
She started with £11.40.
You can solve it by writing an equation.
She started with x.
x - 2.85 = 3x/4
x/4 = 2.85
x = 11.40
Answer this please
I really need a answer
Answer:
The answer is D
Step-by-step explanation:
Why
The board is originally 108 inches long when you cut it in half that makes it two different pieces
You would divide 108 by 2 and you get D
Hoped this helped
607
ery pc
Unit test
Students were surveyed about their preference between dogs and cats. The following two-way table
displays data for the sample of students who responded to the survey.
Sum
Preference
Male
Female
TOTAL
ing ar
Prefers dogs
36
20
56
Prefers cats
10
26
36
No preference
2
6
8
:59
Ze wil
the
TOTAL
48
52
100
Of students in the sample, what fraction were male?
ting
Choose 1 answer:
36
100
59
ew
®
56
100
st
lay
it to
in
52
Using proportions, it is found that the fraction of students in the sample that were male is:
[tex]\frac{56}{100}[/tex]
What is a proportion?A proportion is a fraction of total amount.
From the two-way table, we have that:
There is a total of 100 students in the sample.Of those, 56 are male.Thus, the fraction of students in the sample that were male is:
[tex]\frac{56}{100}[/tex]
You can learn more about proportions at https://brainly.com/question/24372153
PLEASE HELP MEEEEEE I WILL GIVE YOU POINTS
Answer:
make do times tabls pls give me points
Step-by-step explanation:
PLEASE ANSWER THIS QUESTION I REALLY NEED IT TODAY AND WHOEVER DOES THIS, SHE/HE WILL GET LUCK! PLS ANSWER
The answer is C I think.
what is the sum of p and 3 minus 2
Answer:
Step-by-step explanation:
is is (p+3)-2??
Lea has 14coins that have a total value of $2.30. Coins are Nichols and quarters. How many of each coin does she have. Use substitution.
Answer:
Quarters = 8
Nickles = 6
Step-by-step explanation:
Call their numbers x and y.
The number equation is
x + y = 14
The value equation is
5x + 25y = 230
5x + 25y = 230-(5x + 5y = 70)
20y = 160
y = 8
x= 6
Find the value of each variable.
Answer:
x=7 y=12.124
Step-by-step explanation:
hope this helps
Kaycee made 8 identical bags using 7 yards of fabric. How much fabric did Kaycee use for each bag?
Answer:
0.43 yards is the answer
Step-by-step explanation:
All but 4 of the 50 state capitals have an interstate highway serving them. What percent of the capitals do not have interstates?
Answer:
8%Step-by-step explanation:
As per question, 4 out of 50 do not have interstates.
Find the percent value:
4/50*100% = 8%Question Help The circumference of the hub cap of a tire is 73.54 centimeters. Find the area of this hub cap. Use 3.14 for it. Use pencil and paper. If the circumference of the hub cap were smaller, explain how this would change the area of the hub cap. The area of this hub cap is about square centimeters. (Round the final answer to the nearest whole number as needed. Round all intermediate values to the nearest thousandth as needed.)
15. Macy doesn't have any money in her bank account,
but begins saving $ 15 each week. Robby has $20 in
his bank account and saves $ 10 each week. After
how many weeks will Macy and Robby have the same
amount in their accounts? Use the graph to solve.
Answer:
4 weeks
Step-by-step explanation:
because 15x4=60
and 10x4=40+ 20 =60
