Answer:
The solution is -22
Step-by-step explanation:
The solution of an equation is the value of the variable of the equation
∵ -(4x - 3) = -7(9 + x)
→ Simplify each side
∵ -(4x) - -(3) = -7(9) + -7(x)
∴ (-4x) - (-3) = -63 + (-7x)
→ Remember (-)(-) = (+) and (-)(+) = (-)
∴ -4x + 3 = -63 - 7x
→ Add 7x to both sides
∴ -4x + 7x + 3 = -63 - 7x + 7x
∴ 3x + 3 = -63
→ Subtract 3 from both sides
∵ 3x + 3 - 3 = -63 - 3
∴ 3x = -66
→ Divide both sides by 3
∴ x = -22
∴ The solution is -22
The price of a computer was decreased by 7% to £500. What was the price before the decrease? Give your answer to the nearest penny.
Answer:
537.64
Step-by-step explanation:
Use the slope-intercept form to graph the equation y=-8/3x+3
Answer:
See below :)
Step-by-step explanation:
The easiest way to graph this is to find the x-intercept and y-intercept,
y-intercept:
The y-intercept is extremely easy to find as it's just the "b" in "y = mx + b"
If there is no b, it's (0,0). If there is a b, its (0,b)
This is because the y-intercept is where the lines hits the y-axis so we know x must be 0. We can plug in x as 0 to find y:
y = m(0) + b
y = b
In this case, the y-intercept is (0,3) because the b in y = -8/3x + 3
x-intercept:
The x-intercept requires a little more work. It's the same as the y-intercept. The x-intercept is where the lines hits the x-axis so we know y must be 0. The x-intercept is (x,0)
We can use this to plug in y as 0:
0 = mx + b
mx = -b
Now we use this to find the the x-intercept:
0 = -8/3x + 3
8/3x = 3
Divide both sides by 8/3:
x = 3 * 3/8
x = 9/8
In this case, the x-intercept is (9/8,0)
Now we can use these points and connect a line to them and then the lines keeps going forever. Look at the picture I uploaded :)
1. What is the value of x in this equation?
3x + 5 = -22
Answer:
-9
Step-by-step explanation:
3x+5=-22
-5 -5
3x=-27
--------
3 3
x= -9
Which expression is equivalent to 6f+8f?
Answer:
6f + 8f is equal to 14f
Answer:
14f
General Formulas and Concepts:
Algebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define Expression
6f + 8f
Step 2: Simplify
Combine like terms: 14fPLEASE HELP WILL GIVE BRAINLIEST.
What is the slope-intercept form of the function described by this table?
x 1 2 3 4
y −2 −6 −10 −14
Enter your answers by filling in the boxes.
y = x +
help me with this please
Answer:
30-40
Step-by-step explanation:
because on the graph thats where they cross.
(3x — 2) (2x +9)
I need help!!!
Answer:
use math) way (dot com
Step-by-step explanation:
type it in on math) way (dot com
What's the pattern 7,19,31,43
Which transformation was applied to triangle A?
A transformation is applied to the smaller triangle, A, to
form the larger triangle, B.
Which transformation was applied to triangle A?
dilation
reflection
rotation
translation
Answer:
dilation
Step-by-step explanation:
Answer:
dilation
Step-by-step explanation:
on edge
Solve x + 5x = 4x+ 20 algebraically.
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
x=10
Step-by-step explanation:
I need to find the X pls help
Answer:
8
Step-by-step explanation:
11/22= 0.5 multiply 16 and 0.5 and you get 8
Answer: i might be wrong and i apologize if i am but i think its 15.125
Step-by-step explanation:
help me answer this
Answer:x=104
Step-by-step explanation:
a staright line = 180
so 180 - 76= 104
I need help with this
answer:
not factorable
150 is 200% of what number?
At a college bookstore, Tanisha bought a Math Textbook and a Novel for $54. If the price of the Math Textbook is $8 more than 3 times the price of the Novel, then how much is the price of each book?
Answer: Price of Math Textbook= $42.5, Price of the Novel= $11.5
Step-by-step explanation:
Let x = price of the Novel.
Price of Math Textbook = 8+3x
As per given , we have
Price of Math Textbook + Price of the Novel = $54
⇒ 8+3x+x = 54
⇒ 8+4x=54
⇒ 4x = 46 [subtract 8 from both sides]
⇒ x = 11.5
Price of Math Textbook = 8+3(11.5) = 8+34.5= $42.5
Hence, Price of Math Textbook= $42.5, Price of the Novel= $11.5
A peach pie is made with 13 peaches, which are evenly distributed throughout the pie. If Joe ate one slice of pie that contained exactly 5 peaches, what wqs the angle measure of the slice to the nearest tenth of a degree?
Answer:
138.5°
Step-by-step explanation:
A peach pie is in the form of a circle. The sum of angles in a pie is equal to 360°.
Since there are 13 peaches evenly distributed, therefore each peach occupies 360/13 degrees.
Joe ate one slice of pie that contained exactly 5 peaches, hence:
Angle measure of slice = (number of peaches in the slice / total number of peaches) * 360°
Angle measure of slice = (5 / 13) * 360°
Angle measure of slice = 138.5°
Complete the statement to show an equivalent ratio. ) 18:10 is equivalent to ? : 5.
Answer:
9
Step-by-step explanation:
[tex] \frac{18}{10} = \frac{?}{5} \\ \\? = \frac{18 \times 5}{10} \\ \\? = \frac{90}{10} \\ \\ ? = 9[/tex]
Answer:9
Step-by-step explanation:because if you divide 10 by 2 it’s 5 and if you divide 18/2 it’s 9
Need this for my final... PLEASE. HELP
Answer:
I will answer it but what is the question?
Step-by-step explanation:
How do i (F)ind the (R)atio in the( E ) probl(E)m ...points
Answer:
Yuh smooth brain
Step-by-step explanation:
Noice
Mose decides to launch a rocket out of the barn at Schrute farms. The equation below represents the height (in meters), of the rocket getting launched above the ground, t seconds after the rocket is launched. h(t) = -.4 (t - 2)^2 + 5 How high above the ground is the rocket before it is launched?
Height at an instance of time is given by :
h(t) = -4( t - 2 )² + 5 .....1
Differentiating above equation with respect to t .
[tex]\dfrac{dh}{dt}= -4\times ( -2 ) ( t - 2 ) \\\\\dfrac{dh}{dt}= 8(t-2)[/tex]
Now, for maximum , [tex]\dfrac{dh}{dt} = 0[/tex] .
8( t - 2 ) = 0
t = 2
Putting value of t = 2 in given equation, we get :
h( 2 ) = -4( 2 - 2 )² + 5
h( 2 ) = 5 m
Therefore, maximum height rocket can reach is 5 m.
which postulate or theorem can be used to prove the triangles are congruent?
- SSS
- SAS
- ASA
- AAS
Answer:
ASA
Step-by-step explanation:
Hope this helps:)
What expression has a value of 15 when x = 15
Answer:
I suppose 1x is a possible expression. The question confuses me because I feel like there are supposed to be other options
Step-by-step explanation:
The expression having a value of 15 when x is equal to 15 is y = x.
What is an equation?An equation is written in the form of variables and constants separated by the operation of multiplication and division,
An equation states that terms in different forms on both sides of the equality sign are equal.
Multiplication and division do not separate the terms of an equation.
We know an equation y = x which is called an identity equation.
It is called the identity function as the values of x and y are identical.
Therefore, an expression having a value of 15 when x is equal to 15 must be an identity function which is f(x) = x or y = x.
learn more about equations here :
https://brainly.com/question/29657988
#SPJ2
X + y = 9 x + 3y = 13 If (x,y) is the solution to the given system of equations, what is the value of y?
Answer:
D.) 3
Step-by-step explanation:
x + 3 = 8
x - 3 = 2
so that means x = 5 and y = 3
Divide: 5/8÷3/4
Express your answer in simplest form.
A.1/2
B.3/5
C.2/3
D.5/6
Answer:
[tex]0.833333333333[/tex] [tex]or[/tex] [tex]\frac{5}{6}[/tex]
Step-by-step explanation:
__________________________________________________________
Here's how we know this is the answer.
__________________________________________________________
[tex]\frac{5}{8}[/tex] = [tex]0.625[/tex]
__________________________________________________________
[tex]\frac{3}{4}[/tex] [tex]needs[/tex] [tex]to[/tex] [tex]be[/tex] [tex]multiplied[/tex] [tex]by[/tex] [tex]two[/tex] [tex]on[/tex] [tex]each[/tex] [tex]side[/tex].
[tex]Which[/tex] [tex]makes[/tex] [tex]\frac{6}{8}[/tex]
__________________________________________________________
[tex]\frac{3}{4}[/tex] = [tex]0.75[/tex]
[tex]so[/tex]
[tex]\frac{5}{8}\div\frac{6}{8}[/tex] = [tex]0.833333333333[/tex] [tex]or[/tex] [tex]\frac{5}{6}[/tex]
__________________________________________________________
Hope this helps! <3
__________________________________________________________
Find the area of the trapezoid. Leave your answer in simplest radical form
Answer: Im Not really sure but the answer is 303.66
Step-by-step explanation: A=a+b
2h=19+29.2
2·12.6=303.66
Help fast whoever finishes all of these with explanation will get brainly HURRY AND FOR 20 POINTS!
Answer:
d
Step-by-step explanation:
PLEASE HELP AND SHOW WORK
Answer:
x = 3
Step-by-step explanation:
A segment joining the midpoints of 2 sides of a triangle is half the length of the third side, then
[tex]\frac{1}{2}[/tex] × 2x = 3
x = 3
help me plz guys for 14 point
A tree ls 4 1/2
feet tal. It is expected to grow by 1 3/4 feet per year. At this growth rate, how many years will it take for the tree to have a height greater than 40 feet? Enter the answer in the box.
Answer:
20 year and 1.5 months
Step-by-step explanation:
Simplify. 4(2a) + 7(-4b) + (3 * c * 5)
Answer:
The answer is 8a-28b+15c
Step-by-step explanation:
