Answers
Answer:
X=20 3x=60
Step-by-step explanation:
a straight line is 180
180-100=80
4x=80
x=20
We can create a equation to solve for x here.
We will use the following equation:
100 + 3x + x = 180How to solve it step-by-step
[tex]100 + 3x + x = 180\\\\100 + 4x = 180\\\\4x = 80\\\\x = 20[/tex]
Related Questions
Rewrite the function by completing the square
f(x)=x^2-14x+63
Answers
Answer:
f(x) = (x - 7)² - 14
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
Standard Form: ax² + bx + c = 0Vertex Form: f(x) = a(bx - c)² + dCompleting the Square: (b/2)²Step-by-step explanation:
Step 1: Define
f(x) = x² - 14x + 63
Step 2: Rewrite
Separate: f(x) = (x² - 14x) + 63Complete the Square: f(x) = (x² - 14x + 49) + 63 - 49Simplify: f(x) = (x - 7)² - 14Answer:
-7 and 14 on khan
question in the picture
Answers
Answer:
a
Step-by-step explanation:
1/4 = 0.25
Answer: 1/4 < 0.45
Step-by-step explanati
descending order 20,-30,4,0,-3,10
Answers
Answer:
20,10,4,0,-3,-30
Step-by-step explanation:
Scientists have found that the relationship between the area of an island and the number of species can be modeled approximately by S=-3.404+103.2ln(A) S=−3.404+103.2ln(A), where AA is the area in km^2km 2 and SS is the number of species.
Answers
Answer:
[tex]A=e^{(S+3.404/103.2)[/tex]
Step-by-step explanation:
Step one:
we are told that the relationship between the number of species and the island area is given as
[tex]S=-3.404+103.2ln(A)[/tex]-----------------1
based on any given value for either area or number of species, we can find the other.
say we want to find the land area for a given amount of specie
Step two:
we first make area A subject of the formula.
[tex]S=-3.404+103.2ln(A)[/tex]
let us isolate [tex]ln(A)[/tex]
[tex]S + 3.404 = 103.2ln(A)[/tex]
Divide both sides by 103.2 we have
[tex](S + 3.404)/103.2 = ln(A)[/tex]
Now, exponentiate both sides using the base e.
[tex]A=e^{(S+3.404/103.2)[/tex]----------------2
for a given value of "S" we can find the area A based on the above expression.
0.409 +0.681
can you add this with the repeating decimals?
Answers
Answer:
Yes, you can and the answer would be 1.09.
Step-by-step explanation:
i need this asap, will give brainliest to fast answers!! :)
Answers
= $22.50
= $23 (nearest dollar)
Answer: $22.50, but rounded to the nearest dollar its $23.00 Hope this helps :)
Step-by-step explanation: The unit rate it 1/0.75
A circle has a diameter of 50 cm. Which of these is closest to it's circumference.
A) 157 cm
B) 314 cm
C) 7,850 cm
D) 1,963 cm
Answers
Answer:
i know the circumference is 1.57 so it is A)
Step-by-step explanation:
Type the correct answer in the box. Use numerals instead of words. What value of x makes this equation true? -2x + 3 = -15
What does x =
Answers
Answer:x=9
Step-by-step explanation:
-2x+3=-15
Subtract 3 on both sides:
-2x+3-3=-15-3
-2x=-18
Divide -2 on both sides:
-2x/-2=-18/-2
x=9
If the expression (- 2x + 3) is equivalent to (- 15), then [x] is equivalent to 9.
What is a mathematical equation and expression?In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions.Given is the equation as follows -
- 2x + 3 = - 15
The given equation is -
- 2x + 3 = - 15
Solving, we get -
- 2x = - 15 - 3
- 2x = - 18
2x = 18
x = 9
Therefore, if the expression (- 2x + 3) is equivalent to (- 15), then [x] is equivalent to 9.
To solve more questions on functions, expressions and polynomials, visit the link below -
brainly.com/question/17421223
#SPJ2
Segment AB is the diameter of circle M. The coordinates of A are (1,6). The coordinates of M are (-3, 8). What are the coordinates of B
1) (-7,10)
2) (5,4)
3) (-1,7)
4) (-2,1)
Answers
Step-by-step explanation:
Let the midpoint formula be expressed as;
M(X,Y) = {x2+x1/2, y2+y1/2}
X = x2+x1/2
Y = y2+y1/2
Get x2
-3 = x2 + 1/2
-6 = x2 + 1
x2 = -6-1
x2 = -7
Get y2;
Y = y2+y1/2
8 = y2+6/2
16 = y2+6
Y2 = 16-6
y2 = 10
hence the coordinate of B is (-7, 10). Option A is correct
A kitchen sink faucet streams 0.5 gallon of water in 10 seconds. A bathroom sink faucet streams 0.75 gallon of water in 18 seconds. Which faucet will fill a
3-gallon container faster?
Answers
Answer:
the kitchen sink faucet will fill the container faster than the bathroom faucet.
Step-by-step explanation:
I found the unit rate for both faucets in order to be able to compare them.
Kitchen faucet:
.5 gallons in 10 seconds = 1 gallon in 20 seconds (0.5 x 2= 1 gal, 10 sec x 2=20 seconds)
.75 gallons in 18 seconds = 1 gallon in 24 seconds (0.75 = 3/4 3/4 x 4/3=1 gallon, 18 x 4/3 = 24 seconds)
Will give brainliest if correct.
Answers
Answer:
y = -5x - 10
Step-by-step explanation:
Slope-intercept form: y = mx + b
m = slope
b = y-intercept
Now, in your case:
5x + y = -10
Move 5x (don't forget to change the signs!):
y = -5x - 10
Hope this helps!
Please help!!
Write the equation of the line passing through (2,3) and perpendicular to y = 2/3 x + 7.
Answers
Answer:
y = 2/3x
Step-by-step explanation:
So we know, when lines are perpendicular that they share the same slope. The slope in the equation of y = 2/3x + 7 is 2/3x. So, we have our slope. Now, we just need to find our b. We plug in the point that you gave us into the equation y = mx + b.
3 = 2/3(2) + b
we multiply the denominator 3 by 2, then divide that by the numerator 2.
3 = 3 + b
subtract 3 from itself and from the opposite side of the equal side 3.
0 = b
in the end, there is no b for this equation. Our answer is
y = 2/3x
:( can sum1 please help me I got 15min till its due and well my grades are due in 5 and I'm really suck at this question
Answers
Answer:
14 is the answer your welcome
what's the slope of (-2,-7),(4,-10)
Answers
Answer:
answer is -1/2 .i think it will be helpful for you
The equation y = 13x represents the rate, in gallons per minute, that Tank A at an aquarium fills with water. The table represents the rate that Tank B fills with water. Determine which tank fills faster.
Answers
Answer:
Tank A fills up faster.
Step-by-step explanation:
Tank A is y = 13x
Tank B is y = 11x
Plz mark as Brainliest!
HELP ASAP PLS BRAINLIEST
Answers
Answer:
for the 10 column it is $150.00 the next column is 15 and for 200 it is $250.00
Step-by-step explanation:
Michael got a $50 gift card to an online music store. She uses the gift card to buy an album for $9.99. She also wants to use the gift card to buy some songs. Each song costs $1.29. Which of these inequalities describes this situation, where n is the number of songs Michael wants to buy?
Answers
Answer:
$9.99 + $1.29n ≤ $50
Step-by-step explanation:
Given that:
Worth of gift card = $50
Cost of album purchased = $9.99
Cost per song to purchase = $1.29
Number of songs to purchase = n
Inequality to model the situation :
Cost of album + cost per song * (Number of songs) ≤ worth of gift card
$9.99 + ($1.29 * n) ≤ $50
$9.99 + $1.29n ≤ $50
4. Rudy is training for a race. On Monday he ran
2 km. On Tuesday he ran 15% farther than on
Monday. If he increases his running distance
by the same percentage each day, on which day
will he first run more than 4 km?
A. Wednesday
B. Thursday
C. Friday
D. Saturday
Answers
Answer:
C
Step-by-step explanation:
You add .3 km to the first day (tuesday)
then .6 then next day (wedneday)
next you add .9 on the next day (thursday)
finally you add 1.2 km on Friday
2.3+0.6+0.9+1.2=4 km
Rachael earned $42 for 3 1/2 hours at her job today. How much does Rachel earn per hour ?
Answers
Answer:
$12
Step-by-step explanation:
It is given that,
Rachael earned $42 for [tex]3\dfrac{1}{2}[/tex] hours at her job today. It means,
For 7/2 hours, earning is $42
For 1 hour, we divide $42 by 7/2 as follows :
[tex]1\ h=\dfrac{42}{\dfrac{7}{2}}\\\\=\dfrac{42\times 2}{7}\\\\=\$12[/tex]
So, he will earn $12 per hour.
Find the slope and the y-intercept of this table. X 0 3 6 9 and y 4 6 8 10
Answers
Answer:
Step-by-step explanation:
y = 2/3x+4
2/3 is your slope, if you do y2-y1/x2-x1. 6-4/3-0. 2/3
your y intercept is what y is when x is 0. so 4
-7 + 3x = -10x +25
Show the work
Answers
Answer:
Step-by-step explanation:
Move -7 to the left, so make 7 positive and & move it next to 25
1. 3x = -10x +25+7
combine 25 & 7
2. 3x=-10x+32
move 10 to the side & combine with 3x
3. 3x+10x=+32
4. 13x = 32
lastly divide 32 from 13
x= 32/13 OR x= 2 6/13Answer:x=32/13
Step-by-step explanation:
Rearrange terms−7+3=−10+25−7+3x=−10x+25
3−7=−10+25
add 7 to both sides of the equation
then Simplify
add 10 to both sides of the equation the
x=32/13
World's Finest Coffee (Decaf) is sold by the case where one case contains 48 6-ounce packages. A restaurant uses 36 pounds of this coffee each month. How many cases must be ordered per month?
Answers
Answer:
The number of cases to be purchased is 2.
Step-by-step explanation:
Giving the following information:
World's Finest Coffee (Decaf) is sold by the case where one case contains 48 6-ounce packages.
First, we need to calculate how many pounds are in each case.
1 pound = 16 ounces
1 case= (48*6)/16
1 case= 18 pounds
Now, the number of cases required each month:
36 pounds = 18*x
x= number of cases
x= 36/18
x= 2
The number of cases to be purchased is 2.
In this polygon, which angle is an interior angle?
pls answer 20 points
A. c°
B. a°
C. b°
D. d°
Answers
Answer:
Step-by-step explanation:
D
Answer:
C
Step-by-step explanation:
I took the quiz and got it correct
he distance from Earth to the sun is about 150 million kilometers. What is this distance in scientific notation?
Answers
Answer:
1.5 x 10^8
you’re welcome
Answer:
[tex]hey \: dont \: know \\ [/tex]
A sent telegram to b will you sell your car qoute lowest price B sent replay lowest price 50000 A sent second telegram ti B i agree to by car for 50000 B transfer refused to sell it there any contracy between A qnd B and can A Sue B for breach of contract give reason
Graph the linear equation
Answers
Answer:
I added a screenshot. ;)
Step-by-step explanation:
URGENT SOMEONE HELP PLEASE!!
Answers
a = 9b - 8 — (2) [given]
a = a
sub. in the eqns (1) and (2)
2b + 6 = 9b - 8
collect like terms :
6 + 8 = 9b - 2b
14 = 7b
b = 2
Which two lines appear as if they will never intersect? Select all that apply.
a
b
c
d
e
f
Answers
Find the new price after the discount given. Round to the nearest cent if necessary.
$34.589 discounted 8%
Answers
Answer:
$31.82
Step-by-step explanation:
PLEASE HELP ME WITH THIS!!!
calculate the combined surface area of the following three dimensional objects
Answers
Answer:
455.53cm^2
Step-by-step explanation:
diameter of hemisphere = 10cm
radius of hemisphere = 10/2 cm = 5cm
height of hemisphere = radius of hemisphere = 5cm
height of cylinder = 12cm - 5cm = 7cm
surface area = 2pi(5)7 + pi(5)^2 + 2pi(5)^2 = 455.53cm^2 (5sf)
Answer:
455.53cm^2
Is this correct?
Find the center and radius of the circle with the equation:
Answers
Answer:
where is the equation? And I will help.
Step-by-step explanation:
Answer:
i cant answer if there is no problome
Step-by-step explanation: