Answer:
(x , y) = (2 , 1)
Step-by-step explanation:
// Solve equation [1] for the variable x
[1] x = -4y + 6
// Plug this in for variable x in equation [2]
[2] -(-4y+6) - 2y = -4
[2] 2y = 2
// Solve equation [2] for the variable y
[2] 2y = 2
[2] y = 1
// By now we know this much :
x = -4y+6
y = 1
// Use the y value to solve for x
x = -4(1)+6 = 2
I need some help with this
Answer:20
Step-by-step explanation:m =2 So you plug in 2 as m now which means you do 12 times 2 which gives you 24.Lastly do 24 subtract 4 which gives you 20 .
Hope it helps :)
3n^2-1 find the 2nd and 5th term
Answer:
2nd term = 11
5th term = 74
Step-by-step explanation:
3n² - 1
n = 2 , 2nd term = 3*2² - 1
= 3*4 -1
= 12 - 1
= 11
n= 5 , 5th term = 3*5² - 1
= 3*25 - 1
= 75 - 1
= 74
Step-by-step explanation:
in[tex]\tt{3n^2-1 }[/tex] ⠀
If n=2
so,
2nd term=⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{3×2^2-1 }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{ 3×4-1 }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{ 12-1 }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{ 11 }[/tex] ⠀
so,2nd term is 11.If n=5
so,
5th term =
[tex]\rightsquigarrow[/tex] [tex]\tt{ 3×5^2-1 }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{ 3×25-1 }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{75-1 }[/tex] ⠀
[tex]\rightsquigarrow[/tex] [tex]\tt{74 }[/tex]
so 5th term is 74.⠀i will give brainliest:)
Answer:
I believe it is A, B, and D.
Step-by-step explanation:
Sorry for the bad picture quality, lol trust me I’m not android user... bUt I really am struggling! Help!-
Answer:
a to u
Step-by-step explanation:
Am pretty confuse in need of Hope
Answer:
parallelogram.
quadrilateral.
rectangle.
rhombus.
square.
The model of a shopping mall is made using a scale of 1: 50
If the model of the house is 40 cm tall, calculate the height of the
house in metres.
Answer:
20 m
Step-by-step explanation:
Given that :
Scale of 1 : 50 is used to make a model
If the model has a height of 40 cm ; the height of the house is:
Then, the actual height of the house is (40 * 50) = 2000 cm
Thus the height of the house in metre is :
100cm = 1 meter
2000 cm = 2000 / 100
2000 cm = 20 meter
Height of house in meter = 20 meter
Which equation is a direct variation?
y=3/4x+5 y=4x-1 y=3(x+2) y=3/5x
Answer:
Since the equation can be written in the form
y
=
k
x
,
y
varies directly with
x
and
k
. The constant of variation,
k
, is
3
4
.
3
4
Step-by-step explanation:
Dale made $105 for 7 hours of work. At the same rate, how much would he make for 9 hours of work? helppp please
Answer:
135
Step-by-step explanation:
105/7 = 15
15*9 = 135
What happens to the mean of the data set {10, 2, 8, 9, 5, 2, 6} if the number 12 is added to the data set? A. The mean increases by 2. B. The mean increases by 12. C. The mean increases by 0.75. D. The mean increases by 1.75.
Answer:
C. The mean increases by 0.75.
Step-by-step explanation:
The mean of a data set is given by the sum of all its values, divided by the number of values.
Data set {10, 2, 8, 9, 5, 2, 6}
7 values
Sum: 10 + 2 + 8 + 9 + 5 + 2 + 6 = 42
Mean: 42/7 = 6
Adding number 12 to the data set
Now we have 8 values
The sum is 42 + 12 = 54
The mean is 54/8 = 6.75
This means that the mean increases by 0.75.
Answer:
C. 7.5
Step-by-step explanation:
the mean increases by it
PLSSSS HELP MEEE :'(, THANK YOUUUUU SOOO MUCHHH :)
which ratios have a unit rate less than 1 ? choose all that apply
Answer:
2 feet : 12/5 minutes
1/8 foot: 1 2/3 minutes
3 feet : 4 2/3 minutes
1 5/8 feet :2 minutes
Step-by-step explanation: just did it on I-ready
1.4 + 3.2 x 2.95 =?
First one to help is gonna be marked brainliest.
Answer:
10.84
Step-by-step explanation:
First we multiply
1.4+(3.2×2.95)
1.4+9.44=
=10.84
Solve distance 120 meters time 30 seconds
Answer:
4 meters per second
Step-by-step explanation:
120 divided by 30 = 4
Find the percent.
2% of 4,050 tiles is ________ tiles.
ASAP PLEASEEEEEE
Answer:
Step-by-step explanation:
=2/100×4050
=81
Hope it helped you.
Plz mark me brainliest.
if i buy 300 shirt for 7,200 but sell them for 30 dollars each what will be the percent markup
Answer:
Well if you are paying a total of $7,200 for 300 shirts that would make each shirt $24 each meaning you are selling them for $6 more making it a 20-25% markup.
Step-by-step explanation:
Carrie can swim 190 meters in 2 minutes. If you graph this with minutes on the X axis and meters on the
Y axis, what will be the slope of the line?
Answer:
the slope is 95
Step-by-step explanation:
to find the slope of the line divide the change in y by the change in x
if x is minutes and y is meters
190/2=95
Here a easy one tooooooooooooo
Answer: See explanation
Step-by-step explanation:
1.) There's an angle supplementary to m∠123°, that angle is y
y and m∠123° are supplementary since they're linear pairs
y + 123 = 180
Subtract both sides by 123
y = 57°
Now we know at least two angles of the triangle, x + y + m∠92° has to be 180° because they form a triangle.
x + y + m∠92° = 180°
x + 57 + 92 = 180
x + 149 = 180
Subtract both sides by 149
x = 31°
2.) We have to figure out the missing angle in the triangle, that missing angle is once again, y.
y + 100 + 25 = 180
y + 125 = 180
y = 55°
x and y are supplementary angles because they form a straight line
x + y = 180°
x + 55 = 180
Subtract both sides by 55
x = 125°
Hope I helped!
(I really need help on this) FGHIJ ~ YUVWX. Find UY and GH.
Answer:
UY = 90
GH = 4
Step-by-step explanation:
Since both figures are similar, the ratio of their corresponding side lengths would be the same.
Thus:
✔️UY/GF = XW/IJ
UY/10 = 54/6 (Substitution)
Multiply both side by 10
UY = (54*10)/6
UY = 90
✔️Also,
UV/GH = XW/IJ
36/GH = 54/6
36/GH = 9
GH = 36/9
GH = 4
The area of a rectangle with sides of 8m and 12 m is 96 sq.
True or false
Answer:
true
Step-by-step explanation:
Answer:
True
Step-by-step explanation:
The area of a rectangle is A=lw.
If l=8 and w=12, then 8(12) = 96
Your units will be 96 sq. m, so the answer is True
If you order 3 hamburgers, 2 orders of fries, and 3 milkshakes for your friends, how much do they owe you?
Answer:
31.55
Step-by-step explanation:
The perimeter of a picture frame is 68 inches. The difference between the length of the frame and th
times its width is 2. The system of equations
Answer:
L - W = 2 and 2L + 2W = 68
Step-by-step explanation:
The two equations here are going to be-
Length minus width equals 2
L - W = 2
And
Length x 2 + Width x 2 = 68
2L + 2W = 68
if Susan finished her lunch at 1:00 and it took her 45 minutes to eat. what time did the class start
Answer:
12:15
Step-by-step explanation:
i dont really have an explanation
but i am in 6th grade not sure how
to explain it lol
Simplify the following:
-11y² + 9y
Answer:
you can't simplify further
Step-by-step explanation:
I need help
You buy two subs from Danny's for $5.97 each and you pay the cashier
$15. How much change will you get back?*
Answer:
3.06
Step-by-step explanation:
Answer:
You will get $3.06 back
Step-by-step explanation:
Add 5.97 + 5.97 = 11.94
then if you give the cashier $15 subtract what you owe, so 15 - 11.94 = 3.06
Question 1 Three friends split the cost of a pizza and a salad. The pizza costs $15 and the salad costs $6. Which expression can you use to find how much each person owes? (156)3 15 (63) (1523)
Answer: Its the very last one
Step-by-step explanation: first you need to divide the 6 by the 15 and then add it by how many friends your going to share it with
can you please explain to me the steps?
Answer:
I believe the second step would be evaluating the exponent so you just do 7×7 boom i hope i helped
[5, 7.9.11.12.14.19}.
Answer:
sorry I can get what are you asking
is medium, average or something else?
heyyy can someone help really quickly
Answer:
10x+16
Step-by-step explanation:
4x-1+6x+2+15
10x-1+2+15
10x+16
Which shape do you use to set up the proportion for similar shape?
Answer:
a smaller version of the shape think :)
brainliest if you get it right
A
Step-by-step explanation:
the answer you chose is correct, multiplying the 4 members w 10 and the other one by 24,