Answer:
2
Step-by-step explanation:
6x−5y=15
x=y+3
What X = and what does Y= in this problems?
Answer:
y = − 3 in this problem.
Answer:
X= (5y+15)/6 Y= x-3
Step-by-step explanation:
6x - 5y = 15
+5y +5y
--------------------
6x= 5y + 16
/6 /6 /6
= (5y+16)/6
~~~~~~~~~~~~~~~~~
x= y + 3
-3 -3
------------
x - 3 = y
Hope this helps!
Please help i dont wanna fail this time
Answer:
Step-by-step explanation:
So...
you would add -4 and -2 1/2 giving the total of -6 1/2.
All thats left is for you to graph it:)
(Please mark brainliest)
Answer:
-4 - 2.5 = -6.5
Step-by-step explanation:
We are taking a Negative 4 (-4) and subtracting it by 2/5 (Minus 2,.5 or - 2.5).
This results us with -6.5
The arrow would be placed on the mark in between the -7 and -6 going RIGHT. ->
--|------>-----|--
-7 -6.5 -6
#teamtrees #WAP (Water And Plant)
Merry Christmas!!
I need help plz and fast!!
I NEED HELP ILL DO ANYTHING
Answer:
9
Step-by-step explanation:
77/21 = 3.67
3.67 times 30 = 9
Step-by-step explanation:
77-21=56 So the difference will be 56 21+56=78 so CB will be 78 now 11x+11=78 11x=78-11=67
CB is 78
X is 67
My cookbook says that a salad sauce should be made of 1/3 lemon juice and
2/3 oil. I put 30 ml of oil but my hand slipped when adding the lemon juice
and the total volume is now 70.
How much oil must I now add to have the correct proportions?
Answer:
50ml
Step-by-step explanation:
as u put 30ml oil and u have 70 so 70-30 is 40 which is 40ml lemon juice. as 1 part is lemon and 2 parts oil out 2x40 so 80ml but as u already have 30 in there only put 50 :)
Vera went to the local salon to get a haircut. The cost of was $24. Vera tipped the hair stylist 18%. What was the total cost of the haircut including the tip?
Answer:
28.32$
Step-by-step explanation:
18% of 24 = 24*18/100=4.32$
Total: 24+4.32=28.32$
Have a good day
What does "practical domain" mean?
Answer:
practical domain is the domain by just looking at the function.
Step-by-step explanation:
hope it helps
have a great day :)
12.2 gallons for $1.87 . how much did u spend on gas
Answer:
12.2 gallons for $1.87, I would spend probably 2.87 for 24.4 gallons
may some one plz help me out to this
Quadrilateral BECK is known to be a rhombus. Two of the vertices are B(3,5) and C(7,-3).
a. Find one slope of diagonal EK
b. Find an equation of line EK
Answer:
a. The slope of EK is [tex]\frac{1}{2}[/tex]
b. The equation of line EK is y = [tex]\frac{1}{2}[/tex] x - [tex]\frac{3}{2}[/tex]
Step-by-step explanation:
The form of the equation of a line is y = m x + b, where
m is the slope of the lineb is the y-interceptThe rule of the slope is m = [tex]\frac{y2-y1}{x2-x1}[/tex] , where
(x1, y1) and (x2, y2) are two points on the lineThe rule of the mid-point is ([tex]\frac{x1+x2}{2},\frac{y1+y2}{2}[/tex])∵ BECK is a rhombus
∵ The diagonal is the line that joins two opposite vertices
∵ B and C are opposite vertices in the rhombus
∵ E and K are opposite vertices in the rhombus
∴ BC and EK are the diagonals of the rhombus BECK
∵ The diagonals of the rhombus are ⊥ and bisect each other
∴ EK is ⊥ bisector to BC
→ Let us find the slope and the mid-point of BC
∵ B = (3, 5) and C = (7, -3)
∴ x1 = 3 and y1 = 5
∴ x2 = 7 and y2 = -3
→ Substitute them in the rule of the slope above to find it
∵ m = [tex]\frac{-3-5}{7-3}[/tex] = [tex]\frac{-8}{4}[/tex] = -2
∴ m = -2
∴ The slope of BC = -2
→ To find the slope of EK reciprocal the slope of BC and change its sign
∴ m⊥ = [tex]\frac{1}{2}[/tex]
∴ The slope of EK = [tex]\frac{1}{2}[/tex]
a. The slope of EK is [tex]\frac{1}{2}[/tex]
→ Substitute the value of the slope in the form of the equation above
∵ y = [tex]\frac{1}{2}[/tex] x + b
→ To find b substitute x and y in the equation by the coordinates
of a point on the line
∵ The mid-point of BC is the mid-point of EK
∵ The mid-point of BC = ([tex]\frac{3+7}{2},\frac{5+-3}{2}[/tex]) = ([tex]\frac{10}{2},\frac{2}{2}[/tex]) = (5, 1)
∴ The mid-point of EK = (5, 1)
→ Substitute x by 5 and y by 2 in the equation
∵ 1 = [tex]\frac{1}{2}[/tex](5) + b
∴ 1 = [tex]\frac{5}{2}[/tex] + b
→ Subtract [tex]\frac{5}{2}[/tex] from both sides
∴ [tex]-\frac{3}{2}[/tex] = b
→ Substitute the value of b in the equation
∵ y = [tex]\frac{1}{2}[/tex] x + [tex]-\frac{3}{2}[/tex]
∴ y = [tex]\frac{1}{2}[/tex] x - [tex]\frac{3}{2}[/tex]
b. The equation of line EK is y = [tex]\frac{1}{2}[/tex] x - [tex]\frac{3}{2}[/tex]
8.) Find the value of x.
80°
100 + X
40°
HELP ME PLEASE
In a triangle,
3 angles are:
80
100 + x
40
By angle sum property of triangle,
80 + 100 + x + 40 = 180
220 + x = 180
x = 180 - 220
x = -40
What is the slope of the line, what does the slope represent? write an equation for emma’s graph x=time and y=distance
Answer:
5/2 or 2.5
Step-by-step explanation:
Slope formula:
(y₂ - y₁) / (x₂ - x₁)
Two points are given:
(2, 5) and (6, 15)
x₁ = 2
y₁ = 5
x₂ = 6
y₂ = 15
Substitute and solve:
(15 - 5) / (6 - 2)
10 / 4
5/2 or 2.5
Find the slope and y-intercept.
Answer:
y-intercept = -5, slope = 5/3
Step-by-step explanation:
The y-intercept is where on the y-axis (vertical line) does the graph cross. The slope can be found many different ways. My method for this graph was simply counting up the graph until I got to the point where the graph crosses another whole number on the x-axis and then counted over. This makes sense because slope is rise over run so if you go up 5 (from the y-intercept) and then over 3 (to get to the next whole number point) then your slope is 5/3
I NEED HELP BEFORE 12:00 I’ll do anything
Is this a linear equation
4xy + 2y = 9
Answer:
no
Step-by-step explanation:
because you have two variables x and y, and there is two letters attached to one number 4xy, so no is not a linear equation
10 units and a hypotenuse which measures 15
which relation is NOT a function?
Answer:
The relation represented by diagram 4 is NOT a function.
Step-by-step explanation:
To tell if a relation is not a function, pay attention to the x-intercepts. If there is more than one y-intercept with the same x-intercept, then it is not a function, because a function can only have one output (y-value) for each input (x-value).
According to the fourth diagram, the domains include 1, 2, and 3 while the range includes A, B, and C. Also, the ordered pairs would go as follows according to the arrows:
(1, A), (2, A), (2, B), (3, C)
While the y-values, A and B, are different, they share the same input, 2. Therefore, the relation represented by the 4th diagram is NOT a function.
Hope this helps!
Need help!! Will mark brainliest
Answer:
D) 31
Step-by-step explanation:
90 - 63 = 27
(x - 4)° = 27°
x = 31°
The figures are congruent name the corresponding and angle and sides
Please help me!! ASAPPPLL
What are the 5 Key components for graphing the Parabola of a Quadratic Function?
Answer:
Axis of symmetry
y-intercept
x-intercepts
Vertex
(I forgot the last one)
Step-by-step explanation:
Slope of -3 and goes through the point (6, -10) slope intercept form need this ASAP
PLEASE HELPP !!
The exchange rate one day was $0.82 U.S. $1.00 Canadian.
That day, Sheila exchanged $25 U.S. for Canadian dollars. To the nearest cent, how much Canadian money did Sheila receive?
A. $20.50
В. $25.82
C. $26.82
D. $30.49
Answer:
$20.50
Step-by-step explanation:
25 / 0.82 = x / 1
1. Round to the nearest integer
54.6289
Please help
4 7/9 + 1 5/6 + 2 1/2 =
ANSWER ASAP . BE RIGHT TO BE THE BRAINLIEST
Answer:
9 1/9
Step-by-step explanation:
Least Common Denominator is 18.
4 7/9= 4 14/18
1 5/6= 1 15/18
2 1/2= 2 9/18
4 14/18+ 1 15/18+ 2 9/18= 7 38/18
38/18= 19/9
19/9= 2 1/9
7+2 1/9= 9 1/9
Tyler is an avid cyclist he bikes 117 miles every 3 days how many miles will he cycle in 8 days also I need the numerical answer only
Answer:
He will bike 312 miles in 8 days.
Step-by-step explanation:
You divide total miles (117) by total time (3) which is 39, multiple that by 8 and you get your answer of 312.
Help me with Math plz
Answer:
14
Step-by-step explanation:
2(4)-2(-3)
8-(-6)
8+6
14
If Josh can run 1.5 miles in 12 minutes, how long will it take him to run a mile?
Answer:
It would take him 8 minutes
Dan is completing a 60-kilometer run. The diagram below shows what
percent he has run so far.
O km
60 km
H
0%
60 %
100%
How many kilometers has he run so far?
Answer:
36 km
Step-by-step explanation:
60% of 60km
60/100
.6*60=36
36 km
Answer:
The answer is 36km im taking that tes right now
Step-by-step explanation:
Plzzzz helppp meeeeeeee
Answer:
Y inter- (0,-4)
X inter- (2,0)
Step-by-step explanation:
The x intercept is positive 1, and the y intercept is positive 2.
x, y --> 1, 2
