Answer:
y=1
Step-by-step explanation:
Let's solve your equation step-by-step.
5(2y−3)−4y=8−2y−15
Step 1: Simplify both sides of the equation.
5(2y−3)−4y=8−2y−15
(5)(2y)+(5)(−3)+−4y=8+−2y+−15(Distribute)
10y+−15+−4y=8+−2y+−15
(10y+−4y)+(−15)=(−2y)+(8+−15)(Combine Like Terms)
6y+−15=−2y+−7
6y−15=−2y−7
Step 2: Add 2y to both sides.
6y−15+2y=−2y−7+2y
8y−15=−7
Step 3: Add 15 to both sides.
8y−15+15=−7+15
8y=8
Step 4: Divide both sides by 8.
The value of y is 1
Given the equation 5(2Y - 3) – 4y = 8 – 2y - 15
Expand
10Y - 15– 4y = 8 – 2y - 15
6y - 15 = -7 - 2y
Collect the like terms
6y + 2y = -7 + 15
8y = 8
Divide both sides by 8
8y/8 = 8/8
y = 1
Hence the value y of is 1
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can someone help me solve this?
Answer:
34
Step-by-step explanation:
2x + 15 + 3x - 5 = 180
2x + 3x = 5x
15 - 5 = 10
5x + 10 = 180
-10 + 180 = 170
5x = 170
[tex]\frac{170}{5} = 34[/tex]
x = 34
I need help ASAP please help me
Answer:
3x+50=6x-10
Step-by-step explanation:
set them equal to each other and solve for x. I have no paper on me rn to help you, hope this helps tho
PLEASE HELP
Find the value of y for the given value
of x.
y= 2 – 9x; x = 2/3
Find the solution to the system of equations. y = 2x + 2 ([?], [?])
Need help plzzzzzzxz
Which equation is being graphed here?
A. y-4= -2/3(x-2)
B. y-4= -2/3(x+2)
C. y+4= -3/2(x-2)
D. y+4= -3/2(x+2
______________________________
1.) Graph each equation:
(I've included the graphs below.)
So your answer is c, [tex]\bold{y+4=-\frac{3}{2}(x-2)}[/tex].
______________________________
A new savings account is opened with 400 and gains 3% every year.what is the exponential function?
Answer:
Exponential function is:
y = 100 (1.03)ˣ
Step-by-step explanation:
We know that the exponential growth function is of the form
y = a (1 + r)ˣ
Here:
a = initial value
r = growth rate
x = number of time intervals that have passed
Given that A new savings account is opened with 400. Thus,
a = 400
Given that a new saving account gains 3% every year.
r = 3% = 0.03
now substituting a = 400 and r = 0.03 in the function
y = a (1 + r)ˣ
y = 100 (1 + 0.03)ˣ
y = 100 (1.03)ˣ
Therefore, exponential function is:
y = 100 (1.03)ˣ
Please note that the growth factor i.e. 1.03 is greater than 1, so the exponential function represents exponential growth.
*HELP ASAP I CAN ONLY DO THIS ONE TIME OR ILL FAIL*
Answer:
A
Step-by-step explanation:
V= BxHxL divided by 2
6x9x21= 1,134
divided by 2 equals 567yd
Answer:
A) 567 yd^3
Step-by-step explanation:
If you need help with formulas you could always look them up. Like triangular prism volume formula
What kind of sequence is this? –165, –180, –195, –210
the diameter of a bail ball is 6cm. what is the volume? round to the nearest whole number
Answer:
lnkbprtngbp knmbmt[onbmorbmntionbtlrmbvlnrpoigmboigmnb
Step-by-step explanation:
Simplify -5x(x - 3y)
HELP PLEASE, I CANT FAIL THIS.
Answer:
1. complementary angles
2. vertical angles
i am not sure about question 3. 4. 5
3.
4.
5- (not sure)
6. c
Step-by-step explanation:
Evaluate f(x)=7x+7 when x=-9
Answer:
-56
Step-by-step explanation:
f(x) = 7x + 7
x = -9
We meed to plug in x = -9 into the first equation:
f(-9) = 7(-9) + 7
We can open up the parentheses:
f(-9) = -63 + 7
And then simplify:
f(-9) = -56
If Point (-5,-3) is reflected over the x-axis, which quadrant
will the point be in (after reflection)?
Answer:
It would be in quadrant 2
Step-by-step explanation:
(-5,-3) is in quadrant 3
the reflected point would be (-5,3)
Anya says, "62,996 rounds to 63,000"
Select all the places to which she could
have rounded the number.
Answers:
ones
tens
hundreds
thousands
ten thousands
Answer:
hundreds
Step-by-step explanation:
hundreds because in the hundreds place in the number 62996 there's number 9, which it's greater than 4, so it will add 1 to the thousands and all the numbers in the right will be zero
PLEASE HELP ME IV'E BEEN TRYING TO GET HELP BUT NOBODY WILL HELP ME PLEASE HELP "A phone sells for $137.99. It is now on sale for 1/10 off the original price. Tom has a coupon for an extra 5% off the sale price. To the nearest dollar, how much less that the original price will Tom pay for the phone."
Answer:
$122.99
Step by Step explanation
8. Bir sınıftaki öğrenciler sıralara ikişerli oturduğunda 3 öğrenci
ayakta kalmaktadır. Üçerli oturduklarında ise 1 sira boş kal-
maktadır.
Buna göre sıra sayısını veren denklem hangi seçenekte
doğru olarak verilmiştir?
B) 2x + 3 = 3x - 1
A) 3x + 1 = 2x + 3
C) 2x - 3 = 3(x + 1)
D) 2x + 3 = 3(x - 1)
Answer:
cvp B çünkü o iki kavram birbiriyle eşit
Which expression is equivalent to 5x + 9?
A. 5(x-4)+9
B. 5(x+4)+29
C. 5(x-4) +9
D. 5x+(x+9)
Answer:
i belive it would be D
Step-by-step explanation:
52 is 2% of what number? If necessary, round your answer to the nearest hundredth.
a) 0.04
b) 2600
c) 26
d) 1.04
Answer:
B
Step-by-step explanation:
[tex]\frac{52}{2} = \frac{x}{100}[/tex] =
2x = 52(100)
2x = 5200
x = 2600
PLZ MARK AS BRAINLIEST
A parabola has a vertex at (0,0). The focus of the parabola is located at (4,0). What is the equation of the directrix? x=−4 y=−4 x=4 y=4
The equation of directrix of the parabola will be x = -4.
What is directrix ?Directrix is a straight line distance to which from any point of a conic section is in fixed ratio to the distance from the same point to a focus. The directrix is perpendicular to the axis of symmetry and does not touch the parabola.
We have,
Vertex of parabola = (0, 0),
Focus of the parabola = (4, 0),
Now,
The Equation of directrix is given by y = -a
Where,
The equation of the parabola, [tex]y^2 = 4ax[/tex],
And,
Focus at (a, 0),
i.e. a = 4 (As the given focus is (4, 0))
And,
The axis of the parabola is the positive x − axis.
So,
The equation of the directrix of this parabola,
x + a = 0,
i.e.
x + 4 = 0
⇒
x = -4
Hence, we can say that the equation of directrix of the parabola will be x = -4.
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True of flase a point (0,2) can be reflected across the x-axis PLEASE HELP 50 POINTS
Answer:
The rule for reflecting over the X axis is to negate the value of the y-coordinate of each point, but leave the x-value the same. For example, when point P with coordinates (5,4) is reflecting across the X axis and mapped onto point P', the coordinates of P' are (5,-4).
So what do you think the answer is true or false
Answer:
True
Step-by-step explanation:
That is possible since the x is on 0. It can flip and then it lands on (0,-2) I think.
Hope this helped!
On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (0, 3) and (3, 4). Everything above the line is shaded. The second dashed line has a positive slope and goes through (0, negative 2) and (1, 1). Everything to the right of the line is shaded.
Which system of linear inequalities is represented by the graph?
Answer:
A. y≥[tex]\frac{1}{3\\}[/tex]x+3, 3x-y>2
Step-by-step explanation:
The linear equations above match the lines in terms of slope and y-intercept.
I hope you found this helpful! If you did, I'd really appreciate if you'd mark my work as 'brainliest'. Please don't hesitate to ask any questions!
Have a great day!
The system of linear inequalities of the given points is required.
The system of inequality is
[tex]x-3y\leq -9[/tex]
[tex]3x-y>2[/tex]
Points of the first line
[tex](0,3)[/tex]
[tex](3,4)[/tex]
The equation of the line is
[tex]y-3=\dfrac{4-3}{3-0}(x-0)\\\Rightarrow y-3=\dfrac{1}{3}x\\\Rightarrow y-\dfrac{1}{3}x=3\\\Rightarrow 3y-x=9\\\Rightarrow x-3y=-9[/tex]
Let us take a point above this line [tex](2,4)[/tex]
It is also a solid line.
[tex]2-3\times 4=-10<-9[/tex]
So, the inequality is [tex]x-3y\leq -9[/tex]
Points of the second line
[tex](0,-2)[/tex]
[tex](1,1)[/tex]
The equation of the second line is
[tex]y+2=\dfrac{1+2}{1-0}(x-0)\\\Rightarrow y+2=3x\\\Rightarrow 3x-y=2[/tex]
Let us take a point towards the right of the line [tex](2,2)[/tex]
[tex]3\times 2-2=4>2[/tex]
Since, the line is dashed the second inequality will be [tex]3x-y>2[/tex]
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PLS HELP ASAP (THE PICTURE IS BELLOW)
Answer:
10
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Find the dimension of a rectangle whose with is 6 miles less than its length and whose area is 72 square tiles
Answer:
Length = 12
Width = 6
Step-by-step explanation:
Width = 6 miles less than length;
L = L
W = L - 6
Area = 72 ft²
Area = Length * width
Area = (L * L-6)
Area = L² - 6L
-
L² - 6L = 72
L² - 6L - 72 = 0
L² - 12L + 6L - 72 = 0
L(L - 12) +6(L - 12) = 0
L = 12 or L = - 6
L cannot be negative
Width = L - 6
Width = 12 - 6 = 6
Hence,
Dimension of rectangle :
Length = 12
Width = 6
HELPPPPPPPP!!!!!!! ASAPPPPPPPPPPP!!!!
Answer:
The correct answer is 5.29 * [tex]10^{-5}[/tex]
Step-by-step explanation:
Scientific notation's form is a number ones digit number that may have decimals and is multiplied by 10 to some power, this is the only choice that fulfills this rule, so this is the correct answer.
please help me asap?!? test is past due :(
Find the missing side lengths using your notes on the 45-45-90 and 30-60-90 special triangles.
It says that there was an error with my answer, but I don't know what, so I screenshotted what I typed and attached them as 4 images below:
The price of a DVD player changed from $400 to $255. What was the percent of decrease?
Answer:
36.25%
Step-by-step explanation:
400 - 255 = 145
145/400 = 0.3625
0.3625 = 36.25%
Answer:
36.25%
Step-by-step explanation:
(400-255)/400=145/400=0.3625=36.25%
If
x
=
2
and
y
=
5
, evaluate the following expression:
2
(
4
x
+
3
y
)
When x = 2 and y = 5, the value of the expression 2(4x + 3y) is 46.
What is an expression?
Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation.
The expression given is - 2(4x + 3y).
If x = 2 and y = 5, then substitute these values into the expression and simplify as follows -
2(4x + 3y)
2(4(2) + 3(5))
Use the arithmetic operation of multiplication -
2(8 + 15)
Use the arithmetic operation of addition -
2(23)
Use the arithmetic operation of multiplication -
46
Therefore, the value is obtained as 46.
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The ice cream vendor 's cold box holds 24 ice cream cups. The
freezer has 8 cases of ice cream each with 48 cups. How many
trips to the freezer will the vendor make if he sells all the ice cream?
Answer:
16
Step-by-step explanation:
24/8=3
48/3=16
Duke is buying a new cellphone case that is on sale for 20% off. The sale price is
$16 before tax. What was the original price of the cellphone case?
Answer:
$20
Step-by-step explanation:
20 x .2 = 4
20 - 4 = 16
