If x and y vary inversely and x = -3 when y = 12, what is the constant of variation?
k=-36
Step-by-step explanation:
x inversely proportional to y
x=1k/y
where k = constant
x= -3, y= 12, k = ?
-3=k/12
k = -3 × 12
k = -36
A teacher provides 4 sets of cupcakes for the class party. Each set contains 10 cupcakes. If the class has 24 students and each student eats 1 cupcake, how many are leftover?
A 0
B 40
C 16
D 24
Answer:
So 4 sets means 10 x 4=40
40 cupcakes in all
24 x 1=24 cupacakese aten.
40-24= 16
So 16 cupcakes left which i want to eat....:)
Step-by-step explanation:
A)80
B)100
C)120
D)300
can someone please help me its would mean a lot and I donr know if I'm right
Answer:
Hi, I would say that the last one is correct answer.
9514 1404 393
Answer:
(d) Eighteen divided by a number m is seven point two.
Step-by-step explanation:
The symbol ÷ is read "divided by", so the math sentence ...
18 ÷ m = 7.2
is read "eighteen divided by [a number] m is seven and two tenths."
__
"Seven and two tenths" can also be read as "seven point two."
Samantha created part of a table to show her savings. She saved at the same rate each week.
Samantha’s Savings
Week
1
2
3
4
Money Saved
$18
$24
Which graph shows this relationship?
On a coordinate plane, a graph titled Weekly Savings has weeks on the x-axis and money saved on the y-axis. Points (1, 8), (2, 16), (3, 18), and (4, 24) are plotted.
Answer:
B
Step-by-step explanation:
i did the test good luck <3
Graph [2] represents the correct relationship between Weeks and Money saved by Samantha.
What is the general equation of a Straight line?The general equation of a straight line is -
[y] = [m]x + [c]
where -
[m] is slope of line which tells the unit rate of change of [y] with respect to [x].
[c] is the y - intercept i.e. the point where the graph cuts the [y] axis.
The equation of a straight line can be also written as -
Ax + By + C = 0
By = - Ax - C
y = (- A/B)x - (C/A)
Given is Samantha who created part of a table to show her savings. She saved at the same rate each week.
We have, Samantha’s Savings as -
Week 1 2 3 4
Money Saved A B $18 $24
Since she saves at the same rate every week, therefore, the slope of the line will be -
m = (24 - 18)/(4 - 3)
m = 6/1
m = 6
Then -
A = 6
B = 12
The graph [2] represents the correct graph.
Therefore, graph [2] represents the correct relationship between Weeks and Money saved by Samantha.
To solve more questions on straight lines, visit the link below-
brainly.com/question/29030795
#SPJ2
[Refer to the image for full question]
2. At one time, the ratio of in-state to
out-of-state tuition at Texas A&M
University in College Station, Texas
was about 3:11. About how much was
the out-of-state tuition if the in-state
tuition at that time was about $2400?
Answer:
The out-of-state tuition would be $8800.
Step-by-step explanation:
Given that:
The ratio of in-state tuition to out-state tuition = 3:11
If the tuition of in-state is $2400.
Let,
x represent the number of out-of-state tuition.
As the relation is directly proportional.
3 : 11 :: 2400 : x
Product of mean = Product of extreme
11*2400 = 3x
3x = 26400
Dividing both sides by 3
[tex]\frac{3x}{3}=\frac{26400}{3}\\x=8800[/tex]
Hence,
The out-of-state tuition would be $8800.
Solve the system below by graphing.
Y = 3-2x
-4x - 4y= -20
please help me with this and pls don't answer if you don't know. thank you!
Answer:
[tex]consider \: triangle \: BDE \\m<BCD = m<BED \\ angles \: of \: triangle \: sum \: up \: to \: 180 ° \\ (14x + 4)° + 55° + 51° = 180° \\ 14x = 180° - (4 + 55 + 51)° \\ 14x = 70° \\ x = \frac{70}{14} \\ x = 5[/tex]
Answer:
x = 5
Step-by-step explanation:
all angles at corners in parallelogram must add to 360
bcd = 51 thus angle at opposite corner (bed) must also equal 51
adding = 51 + 51 = 102
angles at ebc and edc are also equal to each other
edf = 55 and cbf = 55
adding 55+55 = 110
360 - 110 - 102 = 148
divide by 2 for angles ebf and cfd
148/2 = 74
now solve
14x + 4 = 74
14x = 70
x = 5
Anyone know the answer?!
Step-by-step explanation:
☃[tex] \underline{ \text{ We \: know : }}[/tex]
✑ The general equation of a straight line is y = mx + c where m is the slope and c is the y - intercept ( where graph crosses the y - axis ).☥ [tex] \underline{ \sf{Given \: equation : }}[/tex]
y = -2x + 4Now , comparing y = -2x + 4 with the equation of straight line i.e y = mx + c. We get :
[tex] \boxed{ \boxed{ \tt{☑ Slope ( m )= \: - 2 \: \: , \: y -int\: ( c ) \: =4}}}[/tex]
Hope I helped ! ツ
Have a wonderful day / night ♡
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
State the probability that justifies each statement.
11. If 2x+19=27, then 2x=8
Answer:
100% true....
subtracting 19 from both sides brings you to 2x=8, so x=4
Step-by-step explanation:
Hey there!
2x + 19 = 27
SUBTRACT by 19 to BOTH SIDES
2x + 19 – 19 = 27 – 19
Cancel out: 19 – 19 because that gives you 0
KEEP: 27 – 19 because that gives you the value of 8
New EQUATION: 2x = 8
DIVIDE by 2 to BOTH SIDES
2x/2 = 8/2
CANCEL out: 2/2 because that gives you 1
KEEP: 8/2 because that gives you the value of x
“8/2 = x”
Answer: x = 4 ☑️
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
How do you determine which variable to substitute in for?
Answer:
Substituting for a Variable
If you know the value that the variable is equal to, you can substitute that value in for the variable in the expression! Let's look at an example. Since we know that x=5, we can directly substitute or replace the x in the expression x+3 with a 5 to solve for y!
Step-by-step explanation:
I hope this kinda helps
What is the answer to this ?
Answer:
its B foe your question hope it helps
I need help with this quickly
Answer:
1.25y=x
Step-by-step explanation:
If A (or y)=5 and B (or x)=4 then I think the equation will be 1.25y=x
I am sorry if I am wrong :(
But Hope this Helps ;)
Answer:
[tex]\huge \orange {\boxed {y = - \frac{5}{4}x + 5}} [/tex]
Step-by-step explanation:
Line is intersecting x and y axes at the points (4, 0) & (0, 5)
So, y- intercept (b) = 5
[tex] Slope\: (m) = \frac {(5-0)}{(0-4)} = - \frac {5}{4} [/tex]
Equation of line in slope intercept form is given as:
[tex] y = mx + b[/tex]
Plugging the values of m and b in the above equation, we find:
[tex]\huge \purple {\boxed {y = - \frac{5}{4}x + 5}} [/tex]
tyler has 4 sandwichs he wants to cut each sandwich into halves how many 1/2 size pieces will he have
tyler has 4 sandwichs he wants to cut each sandwich into halves how many 1/2 size pieces will he have
Solution:[tex]4 \div \frac{1}{2} [/tex]
[tex] = 4 \times \frac{2}{1} [/tex]
[tex] = \frac{8}{1} [/tex]
[tex] = 8[/tex]
Checking:[tex]8 \times \frac{1}{2} [/tex]
[tex] = 4 \times \frac{1}{1} [/tex]
[tex] = \frac{4}{1} [/tex]
[tex] = 4[/tex]
Final Answer:8 pieces
#CarryOnLearning
#AnswerForTrees
#BrainlyBookSmart
Write the rule for the linear function. Remember a function rule is written using f(x)
Answer:
The rule for the linear function will be:
f(x) = 5/2x - 4
Step-by-step explanation:
We know that linear function can be represented using the slope-intercept formula
y = mx+b
where m is the slope and b is the y-intercept
Given the function is linear
Taking two points
(0, -4)(2, 1)Finding the slope between (0, -4) and (2, 1)
Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [1 - (-4)] / [2 - 0]
= 5 / 2
Thus, the slope of the line = m = 5/2
We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.
From the graph, it is clear
at x = 0, y = -4
Thus, the y-intercept b = -4
Now, substituting m = 5/2 and b = -4 in the slope-intercept form of linear function
y = mx+b
y = (5/2)x + (-4) ∵ m = 5/2, b = -4
y = 5/2x - 4
or
f(x) = 5/2x - 4 ∵ y = f(x)
Therefore, the rule for the linear function will be:
f(x) = 5/2x - 4
Solve.
3x + 3 = x + 7
The solution is x =
Answer:
x=2
Step-by-step explanation:
3x+3=x+7
3x=x+4
2x=4
x=2
Hope this helps!
Help pleaseeeeee!!!!!
Answer:
its the 2nd one
Step-by-step explanation:
y=mx+b
M=slope
B=y-intercept
Answer:
Slope: 5x Y-Intercept: -7
Step-by-step explanation:
The slope is the rate at which it increases, the y-intercept is the point in the graph that crosses the y-axis
y=mx+b
mx = slope
b = y-intercept
Maggie graphed the image of a 90 counterclockwise rotation about vertex A of . Coordinates B and C of are (2, 6) and (4, 3) and coordinates B’ and C’ of it’s image are (–2, 2) and (1, 4). What is the coordinate of vertex A.
Answer:
free points? ill answer anyway! :)
Step-by-step explanation:
maggie graphed -2-8 so the vertex could be 270 degrees and the B'-2, 2 SO now B' -4 8 and same with C' 3, -8 now instead of C' 1/4! hoped this helped!!
The graphs of two linear equations are shown.
y=−12x−3
y=34x−8
Which is the solution to this system of equations?
Answer:
[tex](5/46, -99/23)[/tex]
A pair of Jordans sold at retail for $180 and now sell for $330 after market. A. Is this a percent INCREASE or DECREASE, what is the PERCENT change?
Answer:
This is a percent INCREASE
The percent change is 83.33%
Step-by-step explanation:
Let us solve the question
∵ A pair of Jordans sold at retail for $180
∴ The initial price = 180
∵ Now it sells for $330 aftermarket
∴ The new price = 330
→ That means the new price is greater than the initial price
∵ The new price is greater than the initial price
∴ This is a percent INCREASE
∵ The percent of change = (amount of increase ÷ initial amount) × 100%
∵ The amount of increase = new price - initial price
∴ The amount of increase = 330 - 180 = 150
→ Substitute it in the rule of percent of increase above
∵ The percent change = [tex]\frac{150}{180}[/tex] × 100%
∴ The percent change = [tex]\frac{5}{6}[/tex] × 100%
∴ The percent change = 83.33%
G is the incenter, or point of concurrency, of the angle bisectors of ΔACE.
Answer:
▢ [tex]$\overline{DG}$[/tex] ≅ [tex]$\overline{FG}$[/tex]
▢ [tex]$\overline{DG}$[/tex] ≅ [tex]$\overline{BG}$[/tex]
▢ [tex]$\overline{GE}$[/tex] bisects [tex]\displaystyle ∠DEF[/tex]
▢ [tex]$\overline{GA}$[/tex] bisects [tex]\displaystyle ∠BAF[/tex]
Step-by-step explanation:
As you can see, angles [tex]\displaystyle BAF[/tex] and [tex]\displaystyle DEF[/tex] form two half-kites, which you should know have two pairs of congruent sides, therefore segments [tex]\displaystyle GA[/tex] and [tex]\displaystyle GE[/tex] are what you call angle bisectours, which is why segments [tex]\displaystyle FG,[/tex] [tex]\displaystyle DG,[/tex] and [tex]\displaystyle BG[/tex] are congruent.
I am joyous to assist you at any time.
I am an odd number between 10 and 20. I can be divided by 3. What number am I?
Answer:
15
Step-by-step explanation:
15÷3=5
15 is between 10 and 20
Answer: 15
Step-by-step explanation: 15 can be divided by 3
12/3x=6/x+4 what is equal to x?
Answer:
8
Step-by-step explanation:
Cross reduce, you then get:
12x+48=18x
12x-18x=-48
-6x=-48
x=8
Which equation represents a nonlinear function?
A y = - 3x + 1
B y = x2 + 1
C y = $ +1
D y = 2x +
1/2
Answer: c
Step-by-step explanation:
Lourdes plans to jog at least 1.5 miles. Write an inequality and solve an inequality to find x, the number of hours Lourdes will have to jog. She is running at 3.75 mph
Answer:
1.5 ≤ 3.75x
Step-by-step explanation:
Given that:
Distance, D to jog is atleast 1.5 miles
D ≥ 1.5 miles
x = number of hours to jog
Jog rate = 3.75 mph
Actual distance covered if jog last for X hours
Actual Distance = speed * time
Actual Distance = 3.75 * x = 3.75x
Hence,
D ≤ Actual distance
1.5 ≤ 3.75x
PLEASE SEND HELP!
ALL I NEED IS THIS ANSWER!!
Answer:
x = 29
i really hope this is right and it helped :P
The equation for line s can be written as y = -8/7x - 4. Line t, which is perpendicular to line
s, includes the point (10, 9). What is the equation of line t?
Answer:
y=-8/7x-4
from, m1m2=-1
-8/7m2=-1
m2=7/8
again from, m=(y-y1)/(x-x1)
7/8=(y-9)/(x-10)
8(y-9)=7(x-10)
8y-72=7x-70
8y=7x-70+72
8y=7x+2
therefere,
y=7/8x+1/4
On a coordinate plane, line A B goes through (negative 4, 0) and (2, negative 3). Point C is at (negative 2, 2).
Which point on the x-axis lies on the line that passes through point C and is parallel to line AB?
(1, 0)
(1, 1)
(0, 2)
(2, 0)
Answer:
(2,0)
Step-by-step explanation:
Answer:
the answer is D
Step-by-step explanation:
i got it right on edge
maggie bought 5 5/6 yards of fabric. She used 2 3/4 yards of the fabric to make a skirt. How many yards of the fabric does she have left?
Answer: 3 1/2
Step-by-step explanation:
If this isn’t right then let me know but I think it is
I don’t really get this question y= 12r + 28
answer : r = y - 28 / 12
explanation :
y - 28 = 12r
y - 28 / 12 = r
switch sides ^
r = y - 28 / 12