Answer:
The number is 9
Step-by-step explanation:
• Let the number be x
[tex]{ \tt{3x - 7 = 20}} \\ [/tex]
» Add 7 to either sides following addition rule of equality:
[tex]{ \tt{(3x - 7){ \red{ + 7}} = 20{ \red{ + 7}}}} \\ { \tt{3x = 27}}[/tex]
» Divide either sides by 27:
[tex]{ \tt{ \frac{3x}{ \blue{3 }} = \frac{27}{ \blue{3}} }} \\ \\ { \tt{x = 9}}[/tex]
Graph the line that passes through the points (2,5) and (-1, –4) and determine
the equation of the line.
Answer:
ask a brainly person to help.
Step-by-step explanation:
i am stuk to
Plot the point that is symmetric to (0,-5) with respect to the x-axis
Answer:
If this point is 0, -5, one of the points of symmetry would be a simple reverse on the y axis. It would be 0, 5.
If we are talking respect to the x axis in general, another reverse point or quadrant would be -5, 0.
if you need more examples, let me know and i might be able to help more on my free time .
Solve the following equations
3y" + 2y'= 0
Answer:
the first one is _2
second one is 3
is 5:10 equivalent to 10:20
Step-by-step explanation:
yes, both is equal ratio 1:2
Answer:
Yes
Step-by-step explanation:
5:10 is equivalent to 10:20 because 5:10 is a simplify vision of 10:20.
10:20 both number divide by 2:
10/2 = 5
20/2 = 10
Hence, 5:10 is equivalent to 10:20
[RevyBreeze]
Please answer the question that is in the image.
Answer:
12*6*2+
15*6*2+
15*12=
504
Hope This Helps!!!
Answer:
504 sq.in.Step-by-step explanation:
Given,
Edges of a box = 12 in. , 15 in. , 6 in.
So,
Lateral Surface Area (LSA) of the box
= 2 (l + b) h
[On substituting their values]= [2 (12 + 15) × 6 ] [tex]in^{2}[/tex]
[On simplifying]= [2 × 27 × 6] [tex]in^{2}[/tex]
On multiplying]= 324[tex]in^{2}[/tex]
And,
Base area of the box
= l × b
[On substituting the values]= (12 × 15) [tex]in^{2}[/tex]
[On multiplying]= 180 [tex]in^{2}[/tex]
Therefore,
Total area painted by Agnes leaving the top of the box
= LSA of the box + Base area of the box
[On putting their values]= 324[tex]in^{2}[/tex] + 180 [tex]in^{2}[/tex]
[On adding]= 504[tex]in^{2}[/tex]
Hence,
The total area painted is 504[tex]in^{2}[/tex] (Ans)
there are two boxes containing only purple and yellow pens.
Box A has 5 yellow pens and 15 purple pens
Box B has 4 yellow pens and 4 purple pens.
event1: choosing a purple pen from box B.
event 2 :choosing a yellow pen from box A.
event 3: choosing yellow or purple from Box B
event4 : choosing a purple pen from Box A
Answer:
I'm not sure what the question is asking here
Question: “How many people are greater than 62 inches tall? “
Can someone please help me kn this :)
Answer:
5
Step-by-step explanation:
which stituation could be modeled by the expression -12x 1/3
Answer:
[tex]-4[/tex]
Alternative forms:
[tex]-2^{2}[/tex]
Step-by-step explanation:
[tex]-12[/tex] × [tex]\frac{1}{3}[/tex]
Cross out the common factor:
[tex]-4[/tex]
If a = 7^x , b = 7^y and a^yb^x = 49 show that xy =
Help to solve quadratic formula and round to nearest hundredth
Answer:
x1 = 2.86
x2 = -0.53
Step-by-step explanation:
[tex]a=6, b=-4, c=-9[/tex]
[tex]x=\frac{-(-14)+-\sqrt{(-14)^{2}-4(6)(-9) } }{2(6)}[/tex]
[tex]x=\frac{14+-\sqrt{412} }{6}[/tex]
[tex]x=\frac{14+-20.3}{12}[/tex]
[tex]x_{1} =\frac{14+20.3}{12} =2.86[/tex]
[tex]x_{2} =\frac{14-20.3}{12} =-0.525[/tex]
Hope this helps
ABC and PQR are similar. Find the missing side length.
What is the slope of the line that passes through the points (0, -8)(0,−8) and (0, -10)(0,−10)? Write your answer in simplest form.
[tex](\stackrel{x_1}{0}~,~\stackrel{y_1}{-8})\qquad (\stackrel{x_2}{0}~,~\stackrel{y_2}{-10}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-10}-\stackrel{y1}{(-8)}}}{\underset{run} {\underset{x_2}{0}-\underset{x_1}{0}}}\implies \cfrac{-10+8}{0}\implies \cfrac{-2}{0}\implies und efined[/tex]
The slope of a given line is -2/0.
The given points are (0, -8) and (0, -10).
What is slope of a line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
We know that, slope m = (y2-y1)/(x2-x1)
Put (x1, y1) = (0, -8) and (x2, y2)=(0, -10) in slope formula
That is, (-10-(-8))/(0-0)
= -2/0
= not defined
Therefore, the slope of a given line is -2/0.
To learn more about the slope of a line visit:
https://brainly.com/question/14511992.
#SPJ5
A circle has a diameter of 21 meters. What is the circumference of the circle? Use 22/7 for ∏.
Answer:
66
Step-by-step explanation:
The diameter of the circle is 21. The formula for circumference is pie*radius*2. We don't have the radius but the diameter is just double the radius so just don't multiply by 2. 21 x 22 = 462. 46s divided by 7 is 66. Enjoy your answer :D
Radhika buys papaya at the rate of p(x) = x² – 12x – 220 per kg
(i) the factors of the given polynomial
(ii) if she purchase 5kg papaya, what money she have to pay?
Answer:
(i) The factors of the given polynomial is (x – 22) and (x + 10)
(ii) If she purchase 5kg papaya then she pays 110
Step-by-step explanation:
Given;p(x) = x² – 12x – 220 per kgTo Find;The factors of the given polynomialif she purchase 5kg papaya, what money she have to pay?(i)Now,
x² – 12x – 220 = 0
Splitting the middle term
x² – 22x + 10x – 220 = 0
x(x – 22) + 10(x – 22) = 0
(x – 22) + (x + 10) = 0
x – 22 = 0 or x + 10= 0
x = 22 or x = -10
Here, (-10) is the negative value hence it is not possible
So, The value of x is 22
The factors of the given polynomial is (x – 22) and (x + 10)
(ii)if she purchase 5kg papaya then,
we know the price of 1 kg papaya i.e., 22 per kg
So,
5 × 22 = 110
Thus, if she purchase 5kg papaya then she pays 110
-TheUnknownScientist 72
What is the equation?
Expand.
Your answer should be a polynomial in standard form.
(-p? - 4p - 3)(p2 + 2)
Answer: Here is the answer.
Step-by-step explanation: we have to multiply each of the terms with the other terms.
=(-p²+4p-3)(p²+2)
=-p²*p²+ ( -p²*2) + 4p*p² + 4p*2 - 3*p²+ ( -3*2)
= -p³ -2p²+4p³+8p-3p²-6
=3p³-5p²+8p-6 (I grouped the like terms and added them)
therefore, 3p³-5p²+8p-6 is the polynomial in the standard form.
Help 10 points. Please
Answer:
x has to be greater than 0
Step-by-step explanation:
It basically shows you that based on the inequality sign.
Answer:
x solved is 0 < x
and graphing it on the number line
-1 0 1
O->
Step-by-step explanation:
So, solving for x is easy you divide the 2 from 2x onto the other side and 0/2 is 0 meaning 0 < x, the < stays the same as you divided with a positive and it would start at 0 and the line would go to the right as 0 is less than x. if you have to it would be a open circle with a dotted line if deltamath makes you do that too.
7/10 • 2/9 + 2/3
thank you!
Answer:
37/45
Step-by-step explanation:
first you do 7/10 times 2/9 which you get 7/45 then you add 2/3 so the answer is 37/45
i rlly need one last brainliest please mark!
Answer:
37/45
Step-by-step explanation:
7/10 • 2/9 + 2/3
7/5 • 1/9 + 2/3
7/45 + 2/3
21/135 + 90/135
111/135
37/45
Hope this helps!
Find the slope please I need help
to get the slope of any straight line we only need two points off of it, let's use the ones in the picture below.
[tex](\stackrel{x_1}{-1}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{4}~,~\stackrel{y_2}{-8}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-8}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{4}-\underset{x_1}{(-1)}}}\implies \cfrac{-10}{4+1}\implies \cfrac{-10}{5}\implies -2[/tex]
What is 2*log(3)? Expanded and get the exact answer.
I write at paper,hope it helps
write a function in terms of t that represents the situation. sales of 10000 decreases by 65% each year.
Answer:
y = 10,000(1.65)^t
Step-by-step explanation
By year 2, the amount is 165% more than of year 1, and year 3 is more of 165% of year 2, and on and on...
Hope that helped...
What is 39/2500 as a terminating decimal?
Answer:
0.0156
Step-by-step explanation:
54 is what percent of 24?
Enter your answer in the box.
I did my work and got the answer but I am just checking. I will give 18 points.
Answer:
225%
Step-by-step explanation:
54 = 24 of x
54 = .24x
Divide both side by the same number
54/.24 = .24x/.24
= 225%
[RevyBreeze]
Consider the equation - 2x + 3y = 6
Part A: Write the equation in slope-intercept form.
Part B: Identify the y-intercept.
Part C: Identify the slope.
Step-by-step explanation:
Hey there!
The given equation is: - 2x + 3y = 6
Part A:
The slope intercept form equation is: y= mx+c.
So, make the equation in y= mx+c form.
- 2x + 3y = 6
Shift -2x right side;
3y = 6+2x
Divide both sides by 3.
y = (6+2x)/3
y = (2/3)x +2
Therefore, the required equation in slope intercept form is: y = (2/3)x +2.
Part B:
When the equation is in y= mx+c form "c" represents the y-intercept.
So, y-intercept is 2.
Part C:
From the equation y = (2/3)x +2,
The slope (m) = 2/3.
Hope it helps!
One number is 3 less than 4 times a second number. The difference of the
first number and twice the second number is 7. What are the two numbers?
Show your work.
Answer:
the two numbers are 5 and 17
Step-by-step explanation:
4y - 3 = x
x - 2y = 7
to find y:
x - 2y = 7
(4y - 3) - 2y = 7
2y - 3 = 7
2y = 7 + 3
2y = 10
y = 10/2
y = 5
to find x :
4y - 3 = x
4 ( 5 ) - 3 = x
20 - 3 = x
17 = x
The amount of time it takes Oliver to run his trains around the toy railroad track is directly proportional to the number of trains that he is playing with. If it takes him a minutes to run c trains around the track, how many trains, in terms of a and c, is he playing with if it took him 20 minutes?
A) 20ac
B) 20a/c
C) 20c/a
D) a/c
Answer:
A)20ac because if it takes him a minutes to run
a bakery sold 10 more cakes this month than it did the last month. It also sold 3 times as many cakes in this month than in the month before the last month. If that total number of cakes it sold in the last 3 months is 116, how many cakes did it sell last month?
Answer:
Last month it sold 338 cakes.
Step-by-step explanation:
Let total cakes this month,last month and last 3 months be x,y and z respectively,
x = y + 10...
x = 3z
z = 116
Now, we have to find y,
x = y + 10
or, 3z = y + 10
or, 3•116 = y + 10
or, 348 = y + 10
or, y = 348 - 10
so, y = 338
What is the area of the triangle?
Answer:
Area = 40 sq units
Step-by-step explanation:
Area of a triangle:
A = 1/2•b•h
= 1/2•8•10
= 40 sq units
Harold is planning dinners for the next 2 nights. There are 12 meals to choose from. If no meal is repeated, how many different meals arrangements are possible?
Dave wants to buy 5 games, 10 Funko Pops, and 6 toys. He was $2,614 .If each game is $50, each Funko Pop is $30, and each toy is $40. How much money does Dave have left?
Answer:
$1,824
Step-by-step explanation:
Games Dave wants to buy: 5
Cost of each game: $50
Cost of 5 games = $50 x 5
= $250
Funko pops Dave wants to buy: 10
Cost of each funko pop: $30
Cost of 10 funko pops = $30 x 10
= $300
Toys Dave wants to buy: 6
Cost of each toy: $40
Cost of 6 toys = $40 x 6
= $240
Sum of all Dave's things = ($250 + $300 + $240)
= $790
Money Dave has = $2,614
Money left with him = ($2,614 - $790)
= $1,824
Hence, $1,824 are left with Dave after buying 5 games, 10 Funko pops and 6 toys.
Pls correct me, if I am wrong :)
Have a great day!
Thanks!