Answer:
it's equals 7
Step-by-step explanation:
A candle that is 10 inches tall burns at a rate of 1/4 inches per hour. Find the height of the candle after 12 hours. *
Answer:
7 in
Step-by-step explanation:
Step one:
Given data
A candle that is 10 inches tall burns at a rate of 1/4 inches per hour
let the number of hours take to burn completely be x
and the lenght after certain time be y
So
The expression for the situation is
y= 10-1/4x
y= 10-0.25x
for x= 12
y=10-0.25*12
y=10-3
y= 7 in
After 12 hours the length is 7 in
y + 6 = 5(2 – 4) need an answer quick
Answer:
y = 4
Step-by-step explanation:
y + 6 = 5(2 - 4)
y + 6 = 10 - 20
y + 6 = 10
y + 6 - 6 = 10 - 6
y = 10 - 6
y = 4
Answer:
y = -16
Step-by-step explanation:
HELP PLEASE ASAP!!!!!!!!!!!!!!!!!!!!!!!!!!11111
Answer:
16(0.5x - 0.75y + 2)
Step-by-step explanation:
16 x 0.5 = 8
16 x -0.75 = -12
16 x 2 = 32
Answer:
16(0.5x - 0.75y + 2)
Step-by-step explanation:-
1. 16 x 0.5 = 8
2. 16 x -0.75 = -12
3. 16 x 2 = 32
whats the answer for (x) 1/2 (8x-6)=-1/3(9x-12)
Answer:
1/2(8x-6)=-1/3(9x-12)
We move all terms to the left:
1/2(8x-6)-(-1/3(9x-12))=0
Domain of the equation: 2(8x-6)!=0
x∈R
Domain of the equation: 3(9x-12))!=0
x∈R
We calculate fractions
(3x9/(2(8x-6)*3(9x-12)))+(-(-2x8)/(2(8x-6)*3(9x-12)))=0
We calculate terms in parentheses: +(3x9/(2(8x-6)*3(9x-12))), so:
3x9/(2(8x-6)*3(9x-12))
We multiply all the terms by the denominator
3x9
We add all the numbers together, and all the variables
3x^9
We do not support expression: x^9
I would appreaciate if i got brainliest
Need help with this please answer :( I’m not good at math at all
5x + 4y = -7
-5x - 2y = 1
Answer:
y=-3
x=1
(1,-3)
Step-by-step explanation:
5x+4y=-7
-5x-2y=1
Cancel +5x - 5
2y=-6
y=-3
5x-12=-7 or -5x+6=1
5x=5 -5x=-5
x=1 x=1
Answer:
y = -3, x = 1
or
(1, -3)
Step-by-step explanation:
5x + 4y = -7
-5x - 2y = 1
add the two equations together
0x + 2y = -6
2y = -6
2y/2 = -6/2
y = -6/2
y = -3
now substitute y = -3 into either of the equations
5x + 4y = -7
5x + 4(-3) = -7
5x - 12 = -7
5x = -7 + 12
5x = 5
x = 1
Divide 7.65 / 0.35 please help
On the grid draw the graph of x+y=6 for values of X between -2 and 3.
Please help me.
No picture included
nice pic dear :)Step-by-step explanation:
4 5/2 - 4 3/2
ANSWER WITH EXPLANATION. BRAINLIST!!!!!
Answer:
1
Step-by-step explanation:
First, we have to make the fractions improper.
To this we would need to multiply the denominator by the whole number and add it to the numerator. 2*4 is 8. 8 + 5 is 13. So for the first fraction, it will be 13/5. Let’s do the second fraction. 2*4 is 8. 8 + 3 is 11. So for the second fraction, it will be 11/2. Since the fractions have the same denominator, we will not have to do anything to them. Now, all you have to do is simple subtraction. 13 - 11 is 2. Since the denominators are the same, it will equal to 2. So the final answer is 2/2 or 1.
i need some help please ;). will mark brainliest.
Answer:
D
Step-by-step explanation:
[tex]\frac{1}{7}[/tex]÷[tex]\frac{12}{1}[/tex]=1/84
[tex]\huge\sf\underline\red{Answer}[/tex]
[tex]\sf{ ⇒ \: \dfrac{1}{7} \div 12}[/tex]
[tex]\sf{ ⇒ \: \dfrac{ \dfrac{1}{7} }{12} }[/tex]
[tex]\sf{⇒ \dfrac{1}{7} \times \dfrac{1}{12} }⇒\dfrac{1}{84} [/tex]
Carol is mixing pink paint. The ratio of red to white paint is 2:1. If carol uses 6 part red paint. How much white paint does she need?
Answer:
3
Step-by-step explanation:
Because the ratio is 2:1, you would divide the number of red parts by 2.
Answer:
She will need 3 parts white paint
Step-by-step explanation:
Lets make a proportion:
2 : 1
6 : x
We know that 2 = 6 in this problem are the same values, red paint
6/2 = 3 3 IS THE CONSTANT OF PROPORITIONALITY
Now, 1 x 3 = 3
1 = 3 in this problem are the same values, white paint
SHE NEEDS 3 PARTS WHITE PAINT
Jessica runs each lap in 8 minutes. She will run less than 48 minutes today. What are the possible numbers of laps she will run today?
Use n for the number of laps she will run today.
Write your answer as an inequality solved for t
Answer:
48>=t+8n>=0
Step-by-step explanation:
Answer:
t>6 is answer
Step-by-step explanation:
the inequality is 8t>48.
the solution is t>48/8=6.
Answer.t>6.
I hope it's helpful!
Given that one of the angles in a triangle is 60°,
select the correct option for each statement.
Cannot be true Might be true
Must be true
(i)
The triangle
is scalene
A
B
С
(ii)
The other two angles
add up to 120°
А
B
С
A
B
The other two angles
of the triangle
are obtuse
The triangle is
right-angled
С
(iv)
A
B
С
Answer:
B, C, A, B
Step-by-step explanation:
i. 60+ 10 +110 = 180 ( so it can be scalene)
ii. 60 +120 =180 ( they have to, to make a triangle)
iii. Obtuse is 90 degrees or more
iv. 90 +60+30=180 (so it can be)
Students at Mr. Mackie’s art class went outside to draw a rainbow, which follows a parabolic path and has the equation of = −0.1( − 1) + 6, where and are measured in centimeters. Graph the function.
If the height of the rainbow is 6 cm, how far away are the end points of the rainbow from one another?
HELP!!
Answer:
We were given the equation of a rainbow, which follows a parabolic path, which is
By comparing to the vertex form,
We have the vertex at (h,k)=(1,6)
Since a=-0.1<0, the parabola opens down.
At y-intercept, x=0.
Step-by-step explanation:
Find the slope of the line. Help I’ll Mark you brainliest
Answer:
You could use the formula
y^2 - y^1/ x^2 - x^1
2 - 1.6 / 5 - 4
=1.6 / 1
m= 1.6 or if you wanna put in a fraction it can be 8/5
find the x- and y- intercepts of the following polynomial functions:
2. P(x) = x⁴ - 2x² + 1
3. P(x) = x (x- 1/2) (x + 4) (x - 1)
4. P(x) = x3 - 2x² - 4x + 8
5. P(x) = (x + 2) (x + 5) (x - 3) (x - 4)
Answer:
2. x-intercepts:(1,0),(-1,0) y-intercept:(0,1)
3.x-intercepts:(0,0),(1/2,0),(-4,0),(1,0) y-intercept:(0,0)
4.x-intercepts:(2,0),(-2,0) y-intercept:(0,8)
5.x-intercepts:(-2,0),(-5,0),(3,0),(4,0) y-intercept:(0,120)
Which of the following is not an expression? A. 5x + 6, B. 2b = 0, C. -10.6, D. 2/3t - 1/8
Answer:
C is the answer
We are stuck on this problem.
Answer:
The measure of angle BED is 78°
Step-by-step explanation:
Hopefully you can see what I did there.
PLSSSSS PLS HELPP ITS DUE SOON
Answer:
C
Step-by-step explanation:
[tex]let\\T = ax+b\\(x, T) = (6, 76) => 6a+b = 76\\(x, T) = (12, 49) => 12a+b = 49\\Subtract\\6a = -27 => a = -4.5\\Substitute\\b = 76+27=103\\\\T = -4.5x + 103[/tex]
Answer:
c) -4.5 x +103
Step-by-step explanation:
Help plssssssssssssss
Find the midpoint between points F(-5, -18) and K(15,8).
Answer:
(5,-5)
Step-by-step explanation:
What is the range of this function{(4,8), (9,2), (-3,-4)}
Answer:
8, 2, 4
Step-by-step explanation:
All the y values of a function are its range and all the x values are its domain
Since the y values of the functions are 8, 2, and -4. the range of this function{(4,8), (9,2), (-3,-4)} will be 8, 2, -4.
What is a function?It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
All the y values of a function are its range and all the x values are its domain
All y's potential values are referred to as the function's range. Using the formula y = f(x), one may determine a function's range (x). If there is just one y value for each x value in a relation, then it is merely a function.
The y values of the functions are 8, 2, and -4.
Thus, since the y values of the functions are 8, 2, and -4. the ranges of this function{(4,8), (9,2), (-3,-4)} will be 8, 2, -4.
Learn more about the function here:
brainly.com/question/5245372
#SPJ6
Round 503.782 to the nearest tenth.
Answer:
503.8
Step-by-step explanation:
Since in the hundredth place you have a number higher than 5, we want to round the tenth digit up by one to get 503.8.
Answer:
503.8
Step-by-step explanation:
The homecoming game is next week, and the students want to hang banners around the school. The students want to put up 110 banners. The banners come in packs of 40. How many packs will the students need to buy?
Answer:
3
Step-by-step explanation:
2.75 however it needs to be rounded to an integer making it 3 packets :)
❤Please help sweeties!❤
The ordered pair (2,5) must satisfy which criteria in order to be a solution to the system?
satisfy the first equation
satisfy the second equation
satisfy both equations
can work in any equation
Answer:
satisfy both equations
Step-by-step explanation:
On a snow day, Hunter created two snowmen in his backyard. Snowman A
was built to a height of 35 inches and Snowman B was built to a height of 50
inches. The next day, the temperature increased and both snowmen began to
melt. At sunrise, Snowman A's height decrease by 4 inches per hour and
Snowman B's height decreased by 7 inches per hour. Let A represent the
height of Snowman At hours after sunrise and let B represent the height of
Snowman B t hours after sunrise. Write an equation for each situation, in
terms of t, and determine how tall each snowman is when they are the same
height.
Answer:
A = 35 - 4t
B = 50 - 7t
Height = 15 inches
Step-by-step explanation:
Given that:
Height of snowman A = 35 inches
Height of snowman B = 50 inches
Height decrease of snowman A = 4 inches per hour
Height decrease of snowman B = 7 inches per hour
t = number of hours
A = 35 - 4t Eqn 1
B = 50 - 7t Eqn 2
At same height,
Eqn 1 = Eqn 2
35 - 4t = 50 - 7t
-4t + 7t = 50 - 35
3t = 15
Dividing both sides by 3
[tex]\frac{3t}{3}=\frac{15}{3}\\t=5[/tex]
Putting t=5 in both equations
A = 35 - 4(5) = 35 - 20 = 15 inches
B = 50 - 7(5) = 50 - 35 = 15 inches
Hence,
A = 35 - 4t
B = 50 - 7t
Height = 15 inches
The equation should be
A = 35 - 4t
B = 50 - 7t
And, the Height = 15 inches
Calculation of the equation and height;
Since
Height of snowman A = 35 inches
Height of snowman B = 50 inches
Height decrease of snowman A = 4 inches per hour
Height decrease of snowman B = 7 inches per hour
Here, t = number of hours
So, the equation should be
A = 35 - 4t
B = 50 - 7t
Now for the same height
35 - 4t = 50 - 7t
-4t + 7t = 50 - 35
3t = 15
t = 15
So,
A = 35 - 4(5) = 35 - 20 = 15 inches
B = 50 - 7(5) = 50 - 35 = 15 inches
learn more about height here: https://brainly.com/question/17231109
2512=3.14(r2)(8)
What is the diameter???
Help please!!!!!!
Answer:
r = 10 or -10
Step-by-step explanation:
с
В.
180
D
3 m
А
E
4 m
The diagram shows the cross section of a garden shed.
(a)
(b)
Calculate the height of the shed.
Calculate the length of CB
Answer:
c
b.
180
d
3 m
A
E
4 m
the diagram shows the cross section of a garden shed.
(a)
(b)
calculate the height of the shed.
calculate the length of cb
find the slope of line that passes through the following points: (-3,5) (-3,8)
Answer:
the slope is infinite or undefined
Step-by-step explanation:
y2-y1/x2-x1=3/0
Name a point Coplanar with points A, B, and E.
Answer:
1. A,B,C
2. F,E,D,W
Step-by-step explanation:
I need help remember taking the square root of a number is the inverse/opposite of squaring number
