Answer:
Sistema de ecuaciones:
x+y= 16
24x+19y=339
Respuesta:
x=7, y=9
Step-by-step explanation:
Con la información del enunciado puedes plantear las siguientes ecuaciones:
x= cantidad de calcetas blancas
y= cantidad de calcetas negras
x+y= 16 (1)
24x+19y=339 (2)
Para resolver las ecuaciones, debes iniciar despejando x en 1:
y=16-x (3)
Después, debes reemplazar (3) en (2) y despejar x para encontrar su valor:
24x+19(16-x)=339
24x+304-19x=339
5x=339-304
x=35/5
x=7
Luego, puedes reemplazar el valor de x en (3) para encontrar y:
y=16-x
y=16-7
y=9
De acuerdo a esto, x= 7, y=9.
Find the value of x in the triangle shown below
Answer: 70
Step-by-step explanation:
Since the spot where the 3.5 and the 4 meet is 55 and there is 2 of that exact angle you can add them to get 110. 180-110 is 70 :)
could someone help me please I don't quite understand this.
Answer:
you clicked the correct one!
Step-by-step explanation:
pls mark brainliest!
Solve the following equation:
2/3 - 1/x = 13/15
Answer:
x=−5
Step-by-step explanation:
Steps:
Step 1 to 4 : Simplify
Steps 5: Calculating the Least Common Multiple
Steps 6: Calculating Multipliers
The correct answer for this question is x=−5
Answer: x=−5
Hope this helps.
Answer:
x = -5
Step-by-step explanation:
2/3 - 1/x = 13/15
Subtract 2/3 from each side
2/3 -2/3 - 1/x = 13/15 -2/3
-1/x = 13/15 - 2/3
Getting a common denominator
-1/x = 13/15 -2/3*5/5
-1/x = 13/15 - 10/15
-1/x = 3/15
Using cross products
3x = -15
Divide each side by 3
3x/3 = -15/3
x = -5
PLEASE HELP ME ASAP!! QUESTION 10
Step-by-step explanation:
x -1 0 1 2
y -9 -6 -3 0
plot (-1,-9) (0,-6) (1,-3) (2,0)
The data below shows how old each of Brad's eight kids were when they started kindergarten.
4
4
5
4
5
4
3
4
Using this data, create a frequency table.
Age (in years)
Number of kids
3
4
5
Answer:
Age (in years) | Number of kids
3 | 1
4 | 5
5 | 2
Step-by-step explanation:
In the picture there is one 3, five 4s, and two 5s.
So that means there is 1 kid that is 3.
5 kids that are 4,
and 2 kids that are 5.
Answer:
3 1
4 5
5 2
Step-by-step explanation:
thats the anwser on khan
Which of the following is the solution of One-fourth x + 5 = 7? x = 2 x = 6 x = 8 x = 12
Answer:
x = 8
Step-by-step explanation:
If you plug the equation into Desmos you can see the x-intercept is 8
plus I got it right on edge ;)
The Happy-Go-Lucky Beach was 163 feet long from parking lot to high tide. After last year's hurricane came ashore, the beach only measured 154 feet
long. What was the percent of change?
About 94.5% of increase
About 94.5 % of decrease
About 5.5% increase
About 5.5% decrease
Answer:
About 5.5% decrease
Step-by-step explanation:
Here, we want to calculate the percentage increase or decrease and its value.
The first thing to do here is to check if we are going to have a decrease or an increase.
since the value before the change is higher than the value after the change, then what we have is a decrease.
Mathematically, the percentage decrease is calculated as follows;
% decrease = (old value - new value)/old value * 100%
old value = 163 feet
new value = 154 feet
% decrease = (154-163)/163 * 100%
% decrease = -9/163 * 100%
% decrease = -5.52%
Thus the best answer is about 5.5% decrease
PLZ HELP ME!!!! maths isn't my best subject. brainiest to be given
Answer:
4
30
8
Step-by-step explanation:
students in the group i would get 30 by adding all the frequency column together
the mean is 40/5 which is 8
the range of marks is the difference between the smallest number and the greatest number in the set so the difference of 6 and 10 which is 4
Answer:
Ans no.1) 4
Ans.no.2) 30
Ans.no3) 8
Step-by-step explanation:
no.1) to find a range we have to do subtract from the highest mark and the smallest mark
no.2) to find the total student you have to add up the frequency
no.3) to find the range first add up all the mark and count the total no. ( 5 ) then divide it by the sum of the no. and the count of no.
F(x) = x^2-3x+18f(x)=x 2 −3x+18f, left parenthesis, x, right parenthesis, equals, x, squared, minus, 3, x, plus, 18 What is the value of the discriminant of fff? How many distinct real number zeros does fff have?
Answer:
No real roots or no real zeros.
Step-by-step explanation:
The given function is
[tex]f(x)=x^2-3x+18[/tex]
We need to find the number of real zeroes.
The given function is a quadratic function.
Let a quadratic function is [tex]f(x)=ax^2+bx+c[/tex].
If [tex]b^2-4ac<0[/tex], then the function has no real root.
If [tex]b^2-4ac=0[/tex], then the function has one real root with multiplicity 2.
If [tex]b^2-4ac>0[/tex], then the function has two real roots.
In the given function,
[tex]a=1,b=-3,c=18[/tex]
So,
[tex]b^2-4ac=(-3)^2-4(1)(18)=9-72=-63<0[/tex]
The value of discriminant is -63.
Therefore, the given function has no real root or no real zeros.
Answer:
The discriminant value of F is -63
F has 0 distinct real number zeros
Step-by-step explanation:
find the coordinate of K' after a Glide reflection of the triangle: translation 4 units up and 4 units right then a reflection across the line y = 1.
Part 3a
Answer:
a. (-1, 3)
Step-by-step explanation:
The "glide" 4 units right and up is the transformation ...
(x, y) ⇒ (x+4, y+4)
The reflection across y=1 is the transformation ...
(x, y) ⇒ (x, 2-y)
Combined, you have the transformation ...
(x, y) ⇒ (x +4, 2-(y +4)) = (x +4, -2-y)
Then, ...
K(-5, -5) ⇒ K'(-5 +4, -2-(-5)) = K'(-1, 3)
You have a bag of 130 strawberries. You eat 27 strawberries and then split the remaining strawberries between 4 friends. Which of the following is a good estimation of how many strawberries each of your friends get?
Answer:
Step-by-step explanation: (130-27)/4 = 25.75 im not sure how you want to round it
Answer:25
Step-by-step explanation: to round 25.75 you have to round it 25 but i believe 25.75 is less than 5 we simply remove the fractional part to get the answer.25.Hope this helped.
simplify 15a^6bc^4/35a^2c^4
Answer:
[tex]\dfrac{3a^4b}{7}[/tex]
Step-by-step explanation:
[tex]\dfrac{15a^6bc^4}{35a^2c^4}= \\\\\dfrac{15}{35}\times\dfrac{a^6}{a^2}\times\dfrac{c^4}{c^4}\times b= \\\\\dfrac{3}{7}\times a^4 \times 1 \times b=\\\\\boxed{\dfrac{3a^4b}{7}}[/tex]
Hope this helps!
Answer:
B
Step-by-step explanation:
part 2. Please show work. Please assist me with these math problems.
Answer:
121800, 591.09375, 1/4.
Step-by-step explanation:
I have attached the work to your problem.
Please see the attachment below.
I hope this helps!
Answer:
4. 121800
5. 591.09375
6. 0.25
Step-by-step explanation:
4. It's an AP with:
first term(a): 12
common difference(d): 24-18 = 6
Sn = (n/2)(2a + (n-1)d)
S200 = (200/2)[2(12) + (200-1)(6)]
= 121800
5. It's an GP with:
first term(a): 12
common ratio(r): 18/12 = 1.5
Sn= a(r^n -1)/(r-1)
S8 = 12(1.5⁸-1)/(1.5-1)
= 18925/32 = 591.09375
6. It's an infinite GP with:
first term(a) = 1/12
common ratio: 1/18 ÷ 1/12 = ⅔
Sinfinity: a/(1-r)
= (1/12) ÷ [1-⅔]
= 1/12 ÷ 1/3
= 1/12 × 3
= 1/4 = 0.25
Urgent! Please help me with this!
Answer:
see below
Step-by-step explanation:
The mean is the sum of all the terms divided by the number of terms
The median is the middle number when the terms are arranged smallest to largest
The mode is the number that appears most often ( most frequently)
Answer:
Median: C
Mode: B
Mean: A
Step-by-step explanation:
Will mark brainliest or correct!!
Lisa receives a net pay of $619.06 biweekly. She has $143 withheld from her pay each pay period. What is her annual gross salary?
Answer:
Step-by-step explanation:
i have provided an attachment for you to take a look at that may help with your example please mark brainliest im new to brainly and son hoping to earn a reputation thank You
Children
0 45
Of the 600 people who visited the Amazing Art Museum
on Tuesday, 45% were children.
How many children visited the museum on Tuesday?
To solve the problem, we can write the
as a
and then create an
On Tuesday, children visited the museum.
0 100
All visitors
part - 45x6__?
whole - 100 x 6 - 600
Answer:Of the 600 people who visited the Amazing Art Museum on Tuesday, 45% were children.
How many children visited the museum on Tuesday?
To solve the problem, we can write the
percent
as
a
ratio
and then create an
equivalent ratio
.
On Tuesday,
270
children visited the museum.
The number of children visited the museum on Tuesday will be 270.
What is mean by Percentage?A number or ratio that can be expressed as a fraction of 100 or a relative value indicating hundredth part of any quantity is called percentage.
Given that;
Total number of people = 600
And, There are 45% were children.
Now,
Since, 45% were children.
Hence, The number of children = 45% of 600
= 45/100 × 600
= 45 × 6
= 270
Thus, There are 270 children.
Learn more about the percent visit:
https://brainly.com/question/24877689
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Please answer CORRECTLY !!!!! Will mark brainliest !!!!!!!
Answer:
(4+x)^2
Step-by-step explanation:
Rewrite 16 as 4^2
4^2+8x+x^2
Check the middle term by multiplying 2ab and compare the result with the middle term in the original expression.
2ab=(2)x(4)x(x)
Factor using the perfect square trinomial rule a^2+2ab+b^2=(a+b)^2, where a=4 and b=x
Anwser:
(4+x)^2
Hopefully that is the correct anwser you're looking for!
Lucy’s parents built a swimming pool in the backyard. that the width is 18ft and the length is30ft , what's the disentrance around the pool , and what's the area of the pool , Use 3.14 for π.
Answer:
P=96;A=540
Step-by-step explanation:
To find the perimeter, the distance around the pool, all you need to do is add 18+18 then add 30+30. Why? Because assuming the pool is a rectangle, it would have 4 sides. The two width sizes as 18 and the two lengths as 30. Now, finding the area is even simpler. All you have to do is multiply the width by the length. 18*30.
I hope this answer helped! If you found it useful give it a thanks! It would mean a lot!
What is the value of x in the figure? Enter your answer in the box.
PLease answer fasttttt
Answer:
65
145=145
thats the answer
What is the value of x in 3x+5+3
Answer:
Step-by-step explanation:
So since the question is no completed. The only way you can answer this is by simplifying it which is not the same as the value of x. It would be 3x+8
Does anyone know the answer?
Answer:
<FBC=<DBG
Step-by-step explanation:
Number 4 please I need help please I need help please help me
Answer:
The perimeter is 112 m
Step-by-step explanation:
The perimeter is the sum of all the edges
26+ 12 + 18 +? + ?+ 30
The two question marks add to 26 so replace them with 26
26+ 12 + 18 +26+ 30
112
The perimeter is 112 m
The box plots represent the distributions of typing speeds of students before and after a computer-programming course.
Which statement is true about the variability of the distributions?
The interquartile range of the typing speeds after the course is greater than the interquartile range of the speeds before the course.
The interquartile ranges of the two distributions are the same.
The range of the speeds after the course is smaller than the range of the speeds before the course.
The ranges of the two distributions are the same.
Answer:
C on EDG
Step-by-step explanation:
Answer: C on edge
Step-by-step explanation:
the range of the speeds after the course is smaller than the range of the speeds before the course.
If 32 % of a is 1.12 then what is the value of a?
Answer:
4.5 is the value of A
Step-by-step explanation:
do it doing part/whole and cross crossing :)
32/100 because it’s a percentage and 1.12/x. 1.12 times 100 to get 112, and then 32 times x = 32x. your equation right now is 32x = 112, bur we want to get rid of that x, so we are going to divide 112/32 to get the whole of 3.5 for the value of A.
Micaela tried to rotate the square 180° about the origin.
Is her rotation correct? If not, explain why.
No, she translated the figure instead of rotating it.
No, she reflected the figure instead of rotating it.
No, the vertices of the image and pre-image do not
correspond
Yes, the rotation is correct.
Answer:
No, the vertices of the image and pre-image do not correspond.
Step-by-step explanation:
Answer: its C
Step-by-step explanation: you got this
Can I get some help plz
Answer:
3rd choice
Step-by-step explanation:
G/2 + 7 = 21
Can I get help with this??
Answer:
g = 28
Step-by-step explanation:
g/2 + 7 = 21
Subtract 7 on both sides.
g/2 = 21-7
g/2 = 14
Multiply 2 on both sides.
g = 2(14)
g = 28
Answer:
g=28Solution,
[tex] \frac{g}{2} + 7 = 21 \\ or \: \frac{g + 7 \times 2}{2} = 21 \\ or \: \frac{g + 14}{2} = 21 \\ or \: g + 14 = 42(cross \: multiplication) \\ or \: g = 42 - 14 \\ g = 28[/tex]
hope this helps...
Good luck on your assignment...
I REALLY NEED YOUR HELP!
Samantha and Jillian were going for a walk. Jillian left 15 seconds ahead of Samantha. • Samantha walked at a speed of 7 feet per second. • Jillian walked at a speed of 6 feet per second. How many seconds had Jillian been walking when the two girls had walked the same distance?
Is the answer 105?
Answer:
105 seconds
Step-by-step explanation:
To solve this, we can set up an equation.
First, let's find how far ahead Jillian is.
15*6=90
Jillian is 90 feet ahead.
Let's name the time that Samantha walks x.
7x is the distance Samantha walks.
90+6x is the distance Jillian walks.
We want to find how many seconds they have walked when the distance is equal.
So let's form an equation.
7x=90+6x
Subtract 6x from both sides.
x=90
Samantha needs to walk 90 seconds.
Jillian started 15 seconds before that.
90+15=105
Jillian had been walking for 105 seconds when the two girls had walked the same distance.
A 13-foot board is cut into two pieces. The length of the shorter piece is 1 ft more than half the length of the longer piece. Find the length (in ft) of the shorter piece.
Answer: 1
Step-by-step explanation: 1
Length of the shorter piece of board is equals to 5foot.
What is length?
" Length is defined as the distance between two end points of any object."
According to the question,
Length of the board = 13foot
'l' represents the length of the longer piece
As per the condition given we have,
Length of the shorter piece = [tex]\frac{l}{2} +1[/tex]
Therefore,
[tex]l + \frac{l}{2}+1=13[/tex]
⇒ [tex]\frac{3l}{2} =13-1[/tex]
⇒[tex]l= \frac{2}{3} (12)[/tex]
⇒ [tex]l= 8foot[/tex]
Length of the shorter piece = [tex]\frac{8}{2} +1[/tex]
= [tex]5foot[/tex]
Hence, length of the shorter piece of board is equals to 5foot.
Learn more about length here
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There are two numbers whose sum is 47. Three times the smaller number is equal to 9 more than the larger number. What are the numbers?
answer.
14 and 33
Step-by-step explanation:
lets use x for the smaller number and y for the other
x+y=47
3x=y+9
x=47-y
3(47-y)=y+9
141-3y=y+9
put the liketerms together
141-9=3y+y
132=4y. (divide both sides by 4)
y=33
x=14
Answer:
14&33
Step-by-step explanation:
x+y=47
3x=y+9
x=47-y
3(47-y)=y+9
141-3y=y+9
141-9=3y+y
132=4y
y=33
x=14