Answer:
obtuse
Step-by-step explanation:
hope this helps
and can you tell me if I was right or wrong?
What is the sum of 3x + 2y - z and -5x + 7y + z
Answer:
-2x + 9y
Step-by-step explanation:
(3x+2y-z)+(-5x+7y+z)
3x+2y-z-5x+7y+z
-2x+9y
Answer:
you would have add the x z
Step-by-step explanation:
add that first then do the numbers
Rewrite the equation in slope-intercept form. Then identify the slope and y-intercept.
a. 3x - 2y = 10
Answer:
Slope intercept form y= mx+b
y= 3/2x-5
slope= 3/2
y-int= -5
Step-by-step explanation:
Find an equation for the perpendicular bisector of the line segment whose endpoints
are (-8,7) and (4,3)
y = 6x - 17
3х - бу = -30
Answer:
the y one is 3.8
the 3x one is 6
Step-by-step explanation:
A piece of carpet is 240cm long.
Mr Jones cuts it into three pieces in the ratio 1:2:5
Work out the length of the longest piece of carpet.
Answer:
Total ratio=8
Length of the longest side=5/8×240
=150
Step-by-step explanation:
A band expects to put 15 songs on their next CD. The band writes and records 20% more songs than
they expect to put on the CD. During the editing process, 50% of the songs are removed. How many
songs will there be on the final CD?
There will be songs on the final CD.
Answer:
9 songs will be on the final CD
Step-by-step explanation:
The band writes and records 20% more songs than they expected to put on CD (they expected to put 15 on CD) , hence 3 more songs since 20% of 15 is 3 (= 15 × 0.20). A total of 18 songs is recorded.
During editing, 50% of the songs are removed, that is 9 (= 18 × 0.50).
Therefore, only 9 songs are left on CD (= 18 - 9)
The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Required percentage value = a
total value = b
Percentage = a/b x 100
The number of songs in the final CD is 9.
What is a percentage?
The percentage is calculated by dividing the required value by the total value and multiplying by 100.
Required percentage value = a
total value = b
Percentage = a/b x 100
Example:
50% = 50/100 = 1/2
25% = 25/100 = 1/4
20% = 20/100 = 1/5
10% = 10/100 = 1/10
We have,
The number of total songs.
= 15 + (20% of 15)
= 15 + (1/5 x 15)
= 15 + 3
= 18
Now,
The number of removed songs.
= 50% of 18
= 1/2 x 18
= 9
The number of songs on the final CD.
= 18 - 9
= 9
Thus,
The number of songs in the final CD is 9.
Learn more about percentages here:
https://brainly.com/question/11403063
#SPJ5
Please help!! 15 Points!!!!
Answer:
I think it is ether A are B
Answer: 1 solution
Step-by-step explanation: 3(
7
3
x+
4
3
)−2x+8=5x+12
all numbers are are solutions
How much would $125 invested at 8% interest compounded continuously be worth after 16 years
Answer:
Step-by-step explanation:
Answer:
$449.58
Hope this helps!!
Marcus and Lara each have the same number of songs on their ipods. Marcus has 10x + 8 songs and Lara has
15x - 92 songs. What is x?
Answer:
The value of x is 20.
Step-by-step explanation:
Given that
Number of songs Marcus has = 10x+8
Number of songs Lara has = 15x-92
It is also given that they have the same number of songs that means both the expressions should be equal.
Putting both equal
[tex]10x+8 = 15x-92[/tex]
This is a linear equation in one variable which can be solved using properties of equality
Subtracting 10 from both sides
[tex]10x+8-10x = 15x-92-10x\\8 = 5x-92[/tex]
Adding 92 on both sides
[tex]8+92 = 5x-92+92\\100 = 5x[/tex]
Dividing both sides by 5
[tex]\frac{5x}{5} = \frac{100}{5}\\x = 20[/tex]
Hence,
The value of x is 20.
Rob's family ate 3 5/8 pizzas at a local restaurant. Each pizza weighs 1 1/4 kg. Which expression can be used to determine how many kilograms of pizza did Rob's family eat?
Answer:
b
Step-by-step explanation:
g
Solve for y :3x-3y=12
Answer:x=4+y
Step-by-step explanation:
Answer:
y = -4 + x
Step-by-step explanation:
3x - 3y = 12
-3x -3x
-3y = 12 - 3x
___________
-3
y = -4 + x
Hope this helps!
What happens to the mean of the data set {2, 4, 5, 6, 8, 2, 5, 6} if the number 7 is added to the data set?
Answer:
It increases
Step-by-step explanation:
The mean of the given data set of 8 values is 4.75 ([tex]\frac{2+4+5+6+8+2+5+6}{8}[/tex])
Adding 7 into the data set also increase the number of data points to 9, so the mean becomes:[tex]\frac{2+4+5+6+8+2+5+6+7}{9}[/tex], which is equal to 5
Hope this helps
There are 150 adults and 245 children at a zoo. The zoo makes a total of $4,780 from the entrance fees,
and the cost of an adult and a child to attend is $23, how much does it cost each for a parent and a child?
Let a represent an adult.
Let c represent a child.
Enter a system of equations to represent the situation, then solve the system.
The
system of equations is
and
The adult tickets cost $
and the child tickets cost $
Answer:
the entrance fee per parent is $25, while the cost per child is $6.
In most cells there is a narrow window of time during-which DNA is synthesized.
Which of the following words, if it replaced the word “synthesized” in the sentence above, would CHANGE the meaning of the sentence¿
I dont know sorry but i bet someone else knows
What is the unknown value
Ben's Sports sells golf tees from a barrel by the scoop. The golf tees come in 5 bright colors mixed in the barrel. To determine what to charge for each scoop, Ben weighed 15 scoops. The weight of each scoop is shown in the line plot below. Use the line plot to answer the questions.
There are 4 breakfast choices in a school cafeteria: Cereal, Granola Bar, Breakfast Sandwich, and Fruit. The percentage of students that chose cereal is 20%. If 60 students chose cereal, what is the total number of students that ate breakfast?
A.
120
B.
300
C.
320
D.
360
Answer:
300. In this case, it's very easy to do this percentage inflation. Since 20 is a multiple of 100, and we want to know the 100%, you just multiply the 20 by 5 to make it 100. Along with this, you multiply the 60 by 5 as well, which gives you 300.
Jordyn saved $75 in two months. If Jordyn continues saving at this rate, how much will she have saved in 12 months?$_________ *
Answer:
1,875
Step-by-step explanation:
75x25=1,875
What is meant by the phrase "included side?"
The side between two angles in a triangle
The side between two other sides in a triangle
The side between an angle and a side in a triangle
The angle between two sides in a triangle
Answer:
the side between two angles in a triangle
Combine "like-terms" : 6x + 9y + 12x + 3y *
Answer:
18x + 12y
Step-by-step explanation:
Help
Please due now
Answer:
43
Step-by-step explanation:
2y+3(x-y) + x^2 =
10+3( 3-5) +3^2
Solve the system by substitution.
y=6x
y=3x+21
( , )
Answer:
(7,42)
Step-by-step explanation:
Imput the 6x for the Y:
6x=3x+21
move the variable to the left
6x-3x=21
collect like terms:
3x=21
divide both sides by 3x and youll get this for X
x=7
Imput x=7 into the equation
Y=6x7
solve:
y=42
match the vocabulary with its definition
prime number
composite number
prime factorization
factor tree
What is the slope of the line that contains the points (4, 3) and (13, 6)
m=3
m=1/3
m=3/5
m=-3/5
You earned a 90% on a math test you answered 18 questions correctly how many questions were on the test
Answer: 20
Step-by-step explanation:
18/20 %90
Which of the following 1/6 is closest to?
1/2
1
0
Answer:
0
Step-by-step explanation:
its closer to 0 then 1/2 and its closer to 0 than 1
The length of a rectangle is ten units more than twice the width. The perimeter of the rectangle is 68 inches. What is the length?
Answer:
26
Step-by-sep explanation:
CAN SOMEONE ANSWER THIS QUICKLY PLEASE??
Answer:
a
Step-by-step explanation:
it's a because a is not liner
How can the commutative property be useful when simplifying the expression below?
14+x+4−9−2y−4
Answer:
x−2y+5
Step-by-step explanation:
Combine Like Terms:
=14+x+4+−9+−2y+−4
=(x)+(−2y)+(14+4+−9+−4)
=x+−2y+5
PLEASE HELPPPPPPPPPPPPP
What is the equation of the line passing through the points (-4,3) and (2,7)?
Answer:
[tex]y = \frac{2}{3} x + \frac{17}{3}[/tex]
Step-by-step explanation:
First, find the slope of the line:
The formula for finding the slope is: [tex]\frac{y_{2} -y_{1} }{x_{2} -x_{1} }[/tex]
Plug in the points:
[tex]\frac{7 - 3}{2 - (-4)}[/tex] = [tex]\frac{4}{6}[/tex] = [tex]\frac{2}{3}[/tex]
So now the equation is y = [tex]\frac{2}{3}[/tex]x + b
Now solve for b by plugging in one of the points:
(2,7)
y = [tex]\frac{2}{3}[/tex]x + b
7 = [tex]\frac{2}{3}[/tex]2 + b
7 = [tex]\frac{4}{3}[/tex] + b
b = [tex]\frac{17}{3}[/tex]
So the equation will be [tex]y = \frac{2}{3} x + \frac{17}{3}[/tex]