There are 32 students in the 6th grade at Garden Valley Middle School. Eight of them have freckles. What is the ratio of 6th graders with freckles to the total number of 6th graders?
A.
1:4
B.
4:1
C.
1:3
D.
3:1
Answer:
A. 1:4 is the answer of this question
Answer:
a
Step-by-step explanation:
there's a pattern that goes along with the 32 students in the 6th grade. since 8 is a factor (or multiple?) of 32, and 8x4 is 32, we can simplify.
so, 8 is the first multiple of 32 and 32 is the fourth. if we simplify that, we get 1:4.
the answer is 1:4.
An inlet pipe on a swimming pool can be used to fill the pool in 15 hours. The drain pipe can be used to empty the pool in 20 hours. If the pool is [tex]\frac{1}{3}[/tex] filled and then the inlet pipe and drain pipe are opened, how many more hours would it take to fill the pool? Round your answer to two decimal places, if needed.
_____________ hours
Answer:
40 hoursStep-by-step explanation:
Rate of filling is 1/15Rate of draining is 1/20If both lines are open the rate of filling is:
1/15 - 1/20 = 4/60 - 3/60 = 1/60 per hourSince tank is 1/3 full we need to fill the remaining 2/3 of it.
Time required:
2/3 : 1/60 = 2/3*60 = 40 hoursThe sum of 3 consecutive numbers is 126. Find the numbers.
Answer:
Hello!!
The sum of 3 constructive numbers is 126. The three constructive numbers are...
[tex]41+42+43=126[/tex]
Hope this helps!!
Roxanne is using successive approximation to solve this equation.
She started from a graph, where she found the solution to be between and 0. Using the lower and upper bounds from the graph, Roxanne started the first iteration of successive approximation. Where did Roxanne make a mistake, and what was the error?
Answer:
B. Roxanne made a mistake at step 5. She should have used x - 1/2 as the new upper bound.
Step-by-step explanation:
Based on the successive approximation method, Roxanne made a mistake at step 5. She should have used x = -1/2 as the new upper bound.
What is successive approximation?In Science, successive approximation can be defined as a classical method that is used in Calculus for solving integral equations or initial value problems.
In this scenario, Roxanne started the first iteration of successive approximation by using the lower and upper bounds of the graph. However, we can deduce that Roxanne made a mistake at step 5 because she should have used x = -1/2 as the new upper bound.
Read more on successive approximation here: https://brainly.com/question/9761975
what is the slope of the line that contains the points (7, -1) and (-2, 2) ?
A - 1/3
B 1/3
C - 3
D - 2
Step-by-step explanation:
m = [tex]\frac{y_{2}- y_{1} }{x_{2} -x_{1} }[/tex]
m = [tex]\frac{2-(-1)}{(-2)-7}[/tex]
m = [tex]\frac{3}{-9}[/tex]
m = [tex]-\frac{1}{3}[/tex]
Please give me a brainliest answer
Sean has a collection of combs. Each comb is worth $1.29. There are 15 total combs.
What is the total value of his collection?
Answer:
1.29 x 15 = $19.35
The total value of Sean's collection is $19.35
**hope this helps
Step-by-step explanation:
Write an equation of each parabola in vertex form vertex : (7, 4) point: (5, 16)
Answer:
y=3(x-7)^2+4
Step-by-step explanation:
what is 2 over 5 + 3 over 7=
Answer:
[tex]\frac{29}{35}[/tex] Is correct answer
Step-by-step explanation:
Step 1: We still have different denominators (bottom numbers), though, so we need to get a common denominator. This will make the bottom numbers match. Multiply the denominators together first. Now, multiply each numerator by the other term's denominator.
Now we multiply 2 by 7, and get 14, then we multiply 5 by 7 and get 35.
Now for the second term. You multiply 3 by 5, and get 15, then multiply 5 by 7 and get 35.
Step 2: Since our denominators match, we can add the numerators.
14 + 15 = 29
That gives us an answer of = [tex]\frac{29}{35}[/tex]
In pic
(Hope this helps can I pls have brainlist (crown)☺️
what is proportion mean
Answer:
a part, share, or number considered in comparative relation to a whole.
Step-by-step explanation:
hope it helps
mark me brainliest pls
Engineering An overpass intersects two
lanes of a highway. What must the value of x
be to ensure the two lanes are parallel?
Answer:
Look down :)
Step-by-step explanation:
The two equations must equal 180 degrees. So what you could do it 4x + (2x + 12) = 180
then solve. If this isnt enough information just comment :)
If no I hope this helped
For the two lanes to be parallel, the value of x must be 28 degrees,
The given information states that the same-side interior angles are 4x degrees and (2x + 12) degrees.
For parallel lines, the sum of these angles must equal to 180 degrees.
As per the concept of linear sum,
4x + (2x +12) = 180
Adding the like terms, we get:
(4x + 2x) + 12 = 180
Simplifying, we get:
6x + 12 = 180
Subtract 12 to both sides, and we get:
6x = 180 - 12
Simplifying, we get:
6x = 168
x = 28
Therefore, the value of x is 28 degrees.
To learn more about the parallel lines;
brainly.com/question/16701300
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marking people brainliest for random LOL comment if you wanna be marked brainliest
LOL, i really need points.
Is 9 a solution to the equation?
3x - 7=20
Yes no
Answer:
yes
Step-by-step explanation:
because its right i know its right
solve pls brainliest
Step-by-step explanation:
-181+485=304
-146-(-181)=35
I have to write something here to send a question)
Answer:
how many children do you have?
Step-by-step explanation:
you said ask a question
PLS PLS PLS I NEED HELP FAAAAAAAASSSSST GIVING BRAINLIEST TO QUICKEST CORRECT
Answer:
c hope this helps
Step-by-step explanation:
Answer:
The correct answer should be C.
Please help!
In the figure below, P is the midpoint of LM, and Q is the midpoint of MN. Use the Midpoint formula to find the location of point P and point Q.
Answer:
P= (5.5, 8)
Q=(8.5,5)
Step-by-step explanation:
Coordinates of L: (2,7)
Coordinates of M: (9,9)
Coordinates of N: (8,1)
Midpoint formula is: [tex]\left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)[/tex]
P is the midpoint of LM, so the coordinates of P will be ((2+9)/2,(7+9)/2)
P's coordinates are (5.5, 8)
Q is the midpoint of MN, so the coordinates of Q will be ((9+8)/2,(9+1)/2)
Q's coordinates are (8.5,5)
Find the range of the data set : -5, -6, -1, -3, 6, 10
Work Shown:
range = max - min = 10 - (-6) = 10 + 6 = 16
The range is the distance from the smallest item to the largest. Use of a number line might help sort out the values to see which is the smallest and largest.
Mary has 3 more apples than Ted and 3 times as many apples as Alex. How many apples do all three of them have combined if Mary has 24 apples
Answer:
52
Step-by-step explanation:
24-3=21 21÷3=7 24 + 21 + 7 = 52
1) In how many ways can a girl choose a two-piece outfit from 9 blouses and 8 skirts?
A) 17
B) 19
C) 144
D) 72
The total number of ways a girl can choose a two-piece outfit from 9 blouses and 8 skirts is 72.
What is permutation?Permutation is a mathematical calculation of the number of ways a particular set can be arranged, where order of the arrangement matters.
Permutation Formula[tex]^{n} P_{r} = \frac{P!}{(n-r)!}[/tex]
Where,
[tex]^{n}P_{r}[/tex] is permutation
n is the number of objects
r is the number of objects selected.
According to the given question.
Total number of blouses = 9
Total number of skirts = 8
So,
the number of ways of choosing one blouse from 8
=[tex]^{8} P_{1}[/tex]
= [tex]\frac{8!}{(8-1)!} \\[/tex]
= [tex]\frac{8!}{7!}[/tex]
= [tex]\frac{8\times 7!}{7!}[/tex]
= [tex]8[/tex]
And the number of ways of choosing one skirt from 9
[tex]^{9} P_{1} \\= \frac{9!}{(9-1)!} \\= \frac{9\times 8!}{8!} \\=9[/tex]
Therefore,
The total number of ways of choosing two piece outfit from 9 blouses and 8 skirts
= [tex]^{8} P_{1} \times ^{9} P_{1}[/tex]
= [tex]8 \times 9[/tex]
[tex]= 72[/tex]
Hence, the total number of ways a girl can choose a two-piece outfit from 9 blouses and 8 skirts is 72.
Find out more information about permutation here:
https://brainly.com/question/1216161
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Find the sum of −6x^2 −1 and x+9
Answer:
[tex]6 {x}^{2} - 1 + x + 9 \\ = 6 {x}^{2} + x + 8[/tex]
Name the jelly like fluid that the other organelles float around in a cell. O Cytoplasm O Cell Membrane O Chloroplast
Step-by-step explanation:
[tex] \bf \underline\red{Question}[/tex]
Name the jelly like fluid that the other organelles float around in a cell?
[tex] \bf \underline\red{Answer}[/tex]
Cytoplasm.
Answer:
cytoplasm
step by step explanation
Plz help I need help
Answer:
What do you need help with mate?
Step-by-step explanation:
you don't have a question posted.
two less than seven times a number c
btw this is write the phrase as an algebraic expression
Answer:
3c-2
Step-by-step explanation:
Hope it helps!!!!!!!
please help with the mathematical questions
A line passes through the points (0,5) and (3,6). What is its equation in slope-intercept
form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answer:
Slope intercept form:
y = 1/3x + 5
According to the Rational Root Theorem, which statement about f(x)=8x3−4x2+6x+3 is true?
Group of answer choices
Any rational root of f(x) is a multiple of 8 divided by a multiple of 3.
Any rational root of f(x) is a factor of 8 divided by a factor of 3.
Any rational root of f(x) is a multiple of 3 divided by a multiple of 8.
Any rational root of f(x) is a factor of 3 divided by a factor of 8.
The rational root theorem is used to determine the possible roots of a function.
The true statement is: (d) Any rational root of f(x) is a factor of 3 divided by a factor of 8.
The function is given as:
[tex]\mathbf{f(x) = 8x^3 - 4x^2 + 6x + 3}[/tex]
The possible roots of a function
[tex]\mathbf{f(x) = qx^n + ax^{n-1} +.....+ p}[/tex]
are
[tex]\mathbf{Roots = \pm\frac{Factors\ of\ p}{Factors\ of\ q}}[/tex]
By comparison: p = 3 and q = 8
So, we have:
[tex]\mathbf{Roots = \pm\frac{Factors\ of\ 3}{Factors\ of\ 8}}[/tex]
Hence, the true option is (d) Any rational root of f(x) is a factor of 3 divided by a factor of 8.
Read more about rational root theorem at:
https://brainly.com/question/9353378
Jayson started with 200 anger units. Each week he lost 7 anger units. Write an equation that models Jayson's anger after t weeks.
Answer:
200 - 7t
Step-by-step explanation:
In order to make an equation, you have to figure out what needs to be put into it. Because Jason starts off with 200 anger units, that number will be subtracted by whatever amount he loses or gains per week, which would be 7. Then, in order to model the number of weeks, you would multiply the variable t to 7, so that it represents how many weeks Jason is going to lose 7 anger units. Therefore, our final equation should be:
Anger units = 200 - 7t
Hope this helps :)
Write the equation of the line passing through the points (-7,8) and (7,2) The equation of the line is [ ]Can someone please help me!!!
Answer:
the answer is y=−3/7x+5
Step-by-step explanation:
sorry if I did it wrong
Jessica has 1 1 week's worth of pay in a wallet and 1 2 week's of pay in the bank.
How many weeks of pay does Jessica have?
Hello!
11 weeks plus 12 weeks equals the total number of weeks.
23 weeks
Hope this helps!
#HaveAnAmazingDay
[tex]GraceRosalia :)[/tex]
For the simple linear equation below, what is the y-coordinate of the ordered pair when the x-coordinate is -15? y=4/5x Enter your answer in the box.(-15, )
Answer:
The answer is -12
Step-by-step explanation: