Answer:
See explanation
Step-by-step explanation:
8x = 3y + 38
24= 6y + 9x
Rearrange;
3y - 8x = -38 * 2 -------(1)
6y + 9x = 24 * 1 -------(2)
6y - 16x = -76 -------(3)
6y + 9y = 24 -------(4)
Subtract (4) from (3)
-25y = -100
y= 100/25
y = 4
Substitute y =4 into(1)
3y - 8x = -38
3(4) - 8x = -38
12 -8x = -38
-8x = -38 - 12
x = 50/8 = 6 2/8
2) 6 = 2x + y
7x = 3 - 3y
Rearrange;
2x + y = 6 * 3 --------(1)
7x + 3y = -3 * 1 --------(2)
6x + 3y = 18 ---------(3)
7x + 3y = -3 ---------(4)
Subtract (4) from (3)
-x = 21
x = -21
Substitute x = -21 into (1)
2x + y = 6
2(-21) + y = 6
-42 + y = 6
y = 6 + 42
y = 48
3)
11x = 5 + 10y
7y = -2x +45
Rearrange
11x - 10y = 5 * 2 ---------(1)
2x + 7y = 45 * 11 ---------(2)
22x - 20y = 10 --------(3)
22x + 77y = 495 --------(4)
Subtract (4) from (3)
-97y = -485
y = 5
Substitute y =5 into (1)
11x - 10y = 5
11x - 10(5) = 5
11x - 50 = 5
11x = 5 + 50
11x = 55
x = 55/11
x = 5
3. Ditmas Middle School has 4,000 students. Montauk Middle School has
1/10 (one tenth) as many students as Ditmas Middle School. How many
students are there at Montauk Middle School.
Answer:
400 students
Step-by-step explanation:
4,000/10 = 400
Answer:
400
Step-by-step explanation:
10) If the original price is $76.50 and there is a 30% discount, what is the sale price?
Answer:
$53.55
Step-by-step explanation:
30% off 76.50 = 22.95
76.50-22.95=53.55
Name the quadrant or axis where each point lies.
Answer:
Point A: Quadrant 1
Point B: Either Quadrant 2 or 3
Step-by-step explanation:
Quadrant 1 is positive x and y
Quadrant 2 is positive y and negative x
Quadrant 3 is negative x and y
Quadrant 4 is negative y and positive x
Point A is both positive x and y
Point B has a y=0 and negative x, so it is between Quadrants 2 and 3
(hope this helps :P)
This circle graph shows the results of a survey that asked 80 people which method of transportation they use to get to the city park.
How many people take the bus to the city park?
20 people
25 people
32 people
40 people
Circle graph titled Methods of Transportation with Walk equals 10 percent, Bus equals 40 percent, Car equals 25 percent, and Bike equals 25 percent.
Answer:
the answer is 32
Step-by-step explanation:
Marcus needs 550 tickets to get the prize he wants at the arcade. He already has 125 tickets and can earn 24 tickets each time he plays an arcade game. How many games will he have to play in order to have enough tickets to win the prize he wants?
PLS HELP WILL GIVE MANY POINTS
Answer:
There is a site where you can look these up, Try to look it up on the internet heres some sites, For Homework: slader
math -
way
explanation:
I cannot read the images clearly
Please Help Me. I will Give 20 Points. Help Me Por Favor
Answer:
10,080cm for the whole thing.
the lateral part of the triangular prism is 1680cm
Step-by-step explanation:
30 x 25 = 750cm
30 x 24 = 720cm
30 x 7 = +210cm
1680cm
25 x 24 = 600cm
600 x 7 = +4200cm
4800cm
4200cm x 2 = 8400cm (both of the triangles)
1680cm
+8400cm
10,080cm
Is this expression equivalent to 1.5?
0.15 / 10
(0.15 divided by 10)
Answer:
False
Step-by-step explanation:
0.15/10 equals 0.015
1/4kg of flour with 2/9kg of suger how much all togather
Answer:
17/36
Step-by-step explanation:
solve for b, i already solved for A
will give brainliest
Answer:
b=23 degrees
Step-by-step explanation:
a was 66 degrees so b=23 degrees 180-90-66=23
please hurry, i need the answer
Given the histogram, use the drop-down menus to identify the elements.
Zero frequency:
A peak:
Answer:
Zero frequency: [tex]351-400[/tex]
A peak: [tex]851-700[/tex]
Step-by-step explanation:
A histogram is a graphical representation that organizes a data in the form of rectangular bars.
From the given diagram of histogram,
Zero frequency: [tex]351-400[/tex]
A peak is a bar that is taller than the rest of the bars.
A peak: [tex]851-700[/tex]
Answer:
Zero Frequency: 351-400
A Peak: 651-700
Step-by-step explanation:
Got it right on Edge
4600 people attended a football game. If 10% of the people who attended were teenagers, how many teenagers attended the game?
Answer:
460 teens
Step-by-step explanation:
10% = 0.1
multiple 0.1 by 4600 to get the amount of teens at the game. You could also do 4600/10 = 460
Mr. Twain asked the students in his class to draw the figure below using a scale factor
2 in.
3.1 in.
3.9 in.
4.5 in.
Student
Response
5 in.
Mark
Samantha
6 in.
Divia
1.3 in.
Cheng
0.9 in.
Candice
11.7 in.
Select all students that answered Mr. Twain's question correctly.
Answer:Mark
Step-by-step explanation:Diva
Answer:
Samantha and Candice
Step-by-step explanation:
In the question it says a scale factor of 3 which means you have to multiply all sides by 3 and when I multiply all sides by 3 ; Samantha and Candice were the correct match.
12 = 1.5x
Solve each equation algebraically
Answer:
x=8
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
I am assuming you want me to answer the equation provided in the picture, therefore I will provide you with the answer.
So we have [tex]\frac{3}{5} x[/tex] = 21
When it comes to equations with a variable, our goal is to isolate the variable, so let's start.
[tex]\frac{3}{5} x[/tex] = 21
1. Combine multiplied terms into a single fraction :
[tex]\frac{3x}{5}[/tex] = 21
2. Multiply both sides by the denominator :
5 * 3/5 = 3
5 * 21 = 105
3x = 105
3. Divide both sides by 3 :
[tex]\frac{3x}{3} = \frac{105}{3 }[/tex]
x = 35
4(b+2)=40 what is the value of b?
Answer:
Step-by-step explanation:
4b+8=40
4b=32
b=8
367589+667556755788654578645
Answer: 667556755788655000000
Step-by-step explanation: braniliest pls
What is the answer to 8.4 - 2.91 ?
Answer:
5.49
Step-by-step explanation:
reduce..........
5.49 doggy woggy woggy woggy woggy woggy also its 5.49
Write the inequality for the following: four times a
number increased by 2 is less than -24.
4 · n + 2 < -24
Hope this helps! Good luck! :)
ABCD is a parallelogram
M is the midpoint of CB
N is the midpoint of AB
DA = a
DC = c
a) find, in terms of a and c, the vector of MN
b) show that CA is parralel to MN
Answer:
Part a)
MN = 0.5a-0.5c
Part b)
MN=0.5a-0.5c
CA=a-c
CA is parallel to MN because 2×MN = CA.
Step-by-step explanation:
Part a = We know that ABCD is a parallelogram (stated), thus opposite sides must be equal. So given that DA = a, CB = a, DC = c, AB = C.
MN = MB+BN, so as M is the midpoint of CB then MB = 1/2 a and as we are going against AB (we are doing BN) then it will be -0.5c as N is the midpoint of AB.
Part B= More of a mathswatch error, where you have to quite literally put the precise answer. CA = CD+DA so -c (as we are going the opposite way to DC) + a.
CA = -c+a
Now CA is a multiple of MN. But Mathswatch prefers if you say that CA is parallel to MN because MN times 2 is equal to CA
In this exercise we have to use the knowledge of parallelogram and vectors to give the values of each one of them, like this:
A) MN = 0.5a-0.5c
B)CA is parallel to MN because 2×MN = CA.
First, we have to remember the definition of parallelogram:
A polygon is any flat closed shape made of straight line segments. A parallelogram is a polygon with 4 sides in which sides that don't touch each other are parallel.A) We know that ABCD is a parallelogram, thus opposite sides must be equal. So given that:
[tex]DA = a,\\CB = a, \\DC = c, \\AB = C.[/tex]
[tex]MN = MB+BN\\MB = 1/2\\BN=-0.5c\\MN = 0.5a-0.5c[/tex]
B)Where you have to quite literally put the precise answer, so we have that:
[tex]CA = CD+DA \\CD=-c\\DA=a\\CA = -c+a\\[/tex]
See more about parallelogram at brainly.com/question/555467
The Commutative Property for addition and multiplication
means you can switch the order of the numbers and still get
the same answer.
8+ 1 = 9 and 1 + 8 = 9
9*1 = 9 and 1 * 9 = 9
In which expression below is the Commutative
Property possible?
С
B
A
s/2
8-f
3.w
Answer:
3*W
Step-by-step explanation:
3*W = 3W
Or you can switch them around and still have the same answer
W*3= 3W
answer for brainliest
Answer:
that would be A my good sir (or ma'am)
Step-by-step explanation:
9m+4n-9m what is this
30÷11
[tex]30 + 1[/tex]
Please help me with this!!
Answer:
A
Step-by-step explanation:
when there's a negative number as an exponent you flip the base number
so it would be 1/(10^3)
10^3= 1000
so it's 1/1000
The length of a rectangle is four times the width. The perimeter of the rectangle is 45 inches. Write a system of
equations that represents this problem. What is the area of the rectangle?
Answer:
81 square inches.
Step-by-step explanation:
Draw a diagram to represent what you know.
You don't know the values of the lengths so represent them algebraically.
You know the perimeter is 45 inches and that the perimeter is calculated by the sum of all of the sides of a shape.
You can rearrange to find the value of a side you've denoted as some unknown variable.
The area is given by the product of the sides. Express this algebraically and then input the value you found.
How can i state whether each graphs represents a function?
Which statements are true about the parabola represented by the equatlon y = 3x 2 -15x+30
the point u(3 , -4) is reflected over the x -axis what are the coordinates of the resulting point , u'?
Answer:
Please find attached pdf
Step-by-step explanation:
Jessica‘s mom is 30. Jessica‘s daughter is zero years old. Jessica‘s mom had Jessica at 15 years old. Jessica is 15 years old. Jessica‘s grandma is 45. Jessica‘s great grandma is 60. How old is Jessica‘s great great great great great great grandma? I know the answer it’s just so everybody can have extra points yay. Must show work. How many music part is Jessica grandma to her great great great great great great grandma?
Jessica‘s mom is 30. Jessica‘s daughter is zero years old. Jessica‘s mom had Jessica at 15 years old. Jessica is 15 years old. Jessica‘s grandma is 45. Jessica‘s great grandma is 60. How old is Jessica‘s great great great great great great grandma? I know the answer it’s just so everybody can have extra points yay. Must show work. How many music part is Jessica grandma to her great great great great great great grandma?
Answer:
135
Step-by-step explanation:
jessica's family as a rule to give birth at the age of 15 clearly so you 5 lots of 15 to 60 and boom. simple
If you have the equation, y=2x+10 what’s x if y=24
Answer: x=7
24=2x+10
24-10=14
14=2x
14/2=7