Answers
Answer:
Step-by-step explanation:
2x-3
2(21)-3
42=3
39
Answer:
its 5
3(2x-3)=21
6x-9=21
6x=30
x=5
Related Questions
helpppppp I'll give you brainy est
Answers
Answer:
Put those equations into desmos
Step-by-step explanation:
GEOMETRY HELP PLEASEEEEEEEEEE
Lesson 5-1 Exploring What Makes Triangles Congruent Practice and Problem Solving: A/B
Answers
2.YZ~PQ
3.P~Y
4.X~N
5.NQ~XZ
6.PN~YX
Similar triangles may or may not be congruent.
The corresponding parts of XYZ and NPQ are: [tex]\mathbf{Z \cong Q}[/tex] , [tex]\mathbf{YZ \cong PQ}[/tex] , [tex]\mathbf{X \cong N}[/tex] , [tex]\mathbf{NQ \cong XQ}[/tex] , [tex]\mathbf{PN \cong YX}[/tex].The unknown values are: [tex]\mathbf{y = 18}[/tex] , [tex]\mathbf{z = 12}[/tex] , [tex]\mathbf{L = 60}[/tex] , [tex]\mathbf{C = 60}[/tex], [tex]\mathbf{AC = 24}[/tex].The congruent parts are: KL and RQ, KJ and RS, QS and LJQuestion 1 to 6:
Triangles XYZ and NPQ are similar triangles.
This means that:
Angles Z and Q, lines YZ and PQ, angles P and Y, angles X and N, lines NQ and XZ, lines PN and YX are corresponding sides and angles
Question 7 to 12:
Triangles LMN and CBA are similar triangles.
This means that:
[tex]\mathbf{7z+6 = 5y}[/tex]
[tex]\mathbf{2y-12 = z + 12}[/tex]
Collect like terms
[tex]\mathbf{2y= z + 12+12}[/tex]
[tex]\mathbf{2y= z + 24}[/tex]
Make z the subject
[tex]\mathbf{z = 2y -24}[/tex]
Substitute [tex]\mathbf{z = 2y -24}[/tex] in [tex]\mathbf{7z+6 = 5y}[/tex]
[tex]\mathbf{7(2y -24) + 6 = 5y}[/tex]
[tex]\mathbf{14y -168 + 6 = 5y}[/tex]
[tex]\mathbf{14y -162 = 5y}[/tex]
Collect like terms
[tex]\mathbf{14y -5y = 162}[/tex]
[tex]\mathbf{9y = 162}[/tex]
Divide both sides by 9
[tex]\mathbf{y = 18}[/tex]
Recall that: [tex]\mathbf{z = 2y -24}[/tex]
[tex]\mathbf{z = 2 \times 18 - 24}[/tex]
[tex]\mathbf{z = 12}[/tex]
[tex]\mathbf{L = 60}[/tex]
[tex]\mathbf{LN = 2y - 12}[/tex]
[tex]\mathbf{LN = 2 \times 18 - 12}[/tex]
[tex]\mathbf{LN = 24}[/tex]
[tex]\mathbf{C = L}[/tex]
[tex]\mathbf{C = 60}[/tex]
[tex]\mathbf{AC = LN}[/tex]
[tex]\mathbf{AC = 24}[/tex]
Question 13:
The congruent parts are: KL and RQ, KJ and RS, QS and LJ
Read more about congruent and similar triangles at:
https://brainly.com/question/19589236
write an equation of a line (-4,-1) and is perpendicular to the line y=4/3x+6
y =
Answers
Answer:
y= -3/4x-2
Step-by-step explanation:
- perpendicular: opposite signs and reciprocal
m= -3/4
point-slope form: y-y1=m(x-x1)
y-(-1)= -3/4(x-(-4))
y+1= -3/4(x+4)
y+1= -3/4x -3
y= -3/4x-2
Jonas has $75 to spend on new clothes. The pair of jeans he wants costs $48.50. Which inequality best represents the amount of money Jonas can spend on shirts?A. s+48.50≥75, B. s+48.50 75, D. s+48.50≤75
Answers
Look at this set of ordered pairs:
(16, 2)
(15, 5)
(0,4)
Is this relation a function?
yes
no
Answers
Answer:
Yes!
Step-by-step explanation:
There are no repeating y values or x values!!
Which operation will "undo" multiplication? division multiplication subtraction addition
Answers
Answer:
The division operation!
Step-by-step explanation:
when you multiple two variables, the one way to undo then is division.
Hope this helps! :)
Answer:
Division
Step-by-step explanation: Because I Got It Right On My Assignment
Write the equation in slope-intercept form of a line that passes through the given point and
is perpendicular to the graph of the given equation:
y = 1/9x – 4 given point: (–2,9)
Answers
Answer:
The answer is y=9x+27
Step-by-step explanation:
Y= 9x+b
9 = 9(-2)+b
9=-18+b
27=b
Determine the intercepts of the line.
y = 80 - 18
Answers
Answer:
Step-by-step explanation:
This equation is in slop-intercept form. This means that the y-int is in the equation, it will always be the constant, so y is -18.
To find x, set y to 0.
0 = 8x - 18
18 = 8x
18/8 = x
9/4 = x
How does place value
help me subtract decimals?
Answers
Place Value helps you subtract decimals because without it it would be a mess. Everything has to be in order if not you get the wrong answer
Lydia ran the same race in 43.85 seconds on her first try and 43.24 seconds on her second try. How much faster was her second try?
Answers
Answer:
She ran faster on her second try by 0.61 seconds.
Step-by-step explanation:
43.85-43.24
0.61
43.85 - 43.24 = 0.61
Latisha hired 4 babysitters in the last month. She paid a total of $170 in babysitting fees. If each babysitter worked a total of 5 hours and is paid the same amount, how much did each babysitter earn per hour?
Answers
8.5Step-by-step explanation:
Add. Write your answer as a fraction in simplest form.
9/10+(-4/5)=?
Answers
Answer:
The answer is 1/10
Solve for x. 3(x + 4) + 2x = 5
Answers
Answer:
x=-7/5
Good Luck!!!
Answer:
x= -7/5 trust me
Step-by-step explanation:
i worked the equation out for u
How do you write it in a fraction?
Answers
use number properties to simplify the expression
-5+(5+3)
Answers
Answer:
u
Step-by-step explanation:
Steps: remove ()
5+5+3=3
On a scavenger hunt, you find 16 out of 25 objects. Write "16 out of 25" as a fraction, a decimal, and a percent.
Fraction:
Decimal:
Percent:
I need help ASAP
Answers
Answer:
Fraction: 16/25 Decimal: 6.25 Percent: 6%
Step-by-step explanation:
I am 99.99% sure this is right.. I hope it helps you.
The statements "16 out of 25" written in fractional, decimal, and percent form are 16/25, 0.64, and 64% respectively.
What is a fraction?A fraction is a part of the whole represented by a/b, where a and b are any integers.
The Given statement is "16 out of 25".
The statement in mathematical form is:
16/25 (Fraction)
= 0.64 (Decimal)
= 64% (percent)
Hence, the statements "16 out of 25" written in fractional, decimal, and percent form are 16/25, 0.64, and 64% respectively.
Learn more on fractions here:
brainly.com/question/10354322
#SPJ2
Find PNO, please help asap
Answers
Answer:
Step-by-step explanation:
Since MNP is equilateral, so <PNM=60, and since OP//NM, and <PON is 90, so <MNO=90=<PNM+PNO,so 90=60+<PNO,so <PNO=30
a bowl contains 15 gra
Answers
Answer: hi
Step-by-step explanation:
Answer:
And, so...
What about the 15 grams?
WILL GIVE BRAINLIEST EASY
drag and drop correct answers
Answers
Answer:
X- int: -3,0 and 1,0
Y- int: -3, 0
Domain: -inf to +inf
Range:+in to -4
Minimum Value : -4, 1
Brenda wants to buy a phone case that costs $35. It is on sale for 20% off. What would be the sales price? What are we finding?
A) part
B) whole
C) percent
Answers
Answer:
A
Step-by-step explanation:
Nadia is a stockbroker. earns 13% commission each week. Last week, sold $7,000 worth of stocks. How much did make last week in commission? If averages that same amount each week, how much did make in commission in 2011?
Answers
Answer:
a). Nadia made a total of $825 last week in commission sales
b). The total amount Nadia in commission in 2011=$42,900
Step-by-step explanation: Step 1
Express the amount in commission she earns from her sales as follows;
C=S×r
where;
C=commission earned
S=total value of stock sales
r=commission rate
In our case;
C=unknown
S=$7,500
r=11%=11/100=0.11
replacing;
C=11% of 7,500
C=(11/100)×7,500
C=0.11×7,500=825
Nadia made a total of $825 last week in commission sales
b). To express the total amount she made in 2011, we derive the formula below;
Total amount (2011)=Average weekly commission×number of weeks in 2011
where;
Average weekly commission=$825
number of weeks in 2011=52
replacing;
Total amount (2011)=(825×52)=42,900
The total amount Nadia in commission in 2011=$42,900
Answer:
jjhjjh
Step-by-step explanation:
nn
Help me plzplzplzplz1
Answers
Answer:
The answer is 400 when you round it off to the nearest hundred.
Chin bought 12 pounds of apples for $6. Use the ratio table to find the cost of buying 3 pounds of apples. *
Answers
Answer: The answer should be 1.5.
Step-by-step explanation:
$6 divided by 12 is .5... Multiply .5 by 3, seeing as 1 pound = $.5
Answer:
$.5
Step-by-step explanation:
hope this helps y'all
an airplane begins to descend for a landing. the elevation g (in feet) of the airplane is modeled by the function: g(t)= 4800-300t, where t is the time (in minutes) since the airplane began to descend. what is the y- intercept?
Answers
Answer:
The y-intercept in this case is 4800
Step-by-step explanation:
The equation of a line graph is ;
y = mx + c
with respect to the given equation in the question, the y-intercept in this case is 4,800
In this case the y-intercept represent the height from which the plane starts to descend
Based on the graph, which inequality is correct for a number that is to the right of -3?
A number line is shown from negative 8 to 8 at increments of 1. A circle is shown at negative 3. The entire portion of the number line to the right of negative 3 is shaded.
4 > −3
−3 > 4
−2 < −3
−3 < −6
Answers
Answer:
4>-3
Step-by-step explanation:
-3 is a negative number. Negative numbers are less than positive numbers. In this inequality the positive number is being shown as greater than, meaning it is the correct choice.
Step-by-step explanation:
4>-3
The graph of y = f(x) is shown below. Find all values of x where f(x) = -5.
Picture of graph is there
40 points casue I need this answer
Answers
The best way to find out whether or not the parabola created by a quadratic formula crosses the x-axis is by graphing the quadratic function, but this is not always possible, so one might have to apply the quadratic formula to solve for x and find a real number where the resulting graph would cross that axis.
The quadratic function is a master class in applying the order of operations, and although the multistep process may seem tedious, it is the most consistent method of finding the x-intercepts. The easiest way to interpret quadratic functions is to break it down and simplify it into its parent function. This way, one can easily determine the values needed for the quadratic formula method of calculating x-intercepts. Remember that the quadratic formula states:
x = [-b +- √(b2 - 4ac)] / 2a
This can be read as x equals negative b plus or minus the square root of b squared minus four times ac over two a. The quadratic parent function, on the other hand, reads:
y = ax2 + bx + c
This formula can then be used in an example equation where we want to discover the x-intercept. Take, for instance, the quadratic function y = 2x2 + 40x + 202, and try to apply the quadratic parent function to solve for the x-intercepts. In order to properly solve this equation and simplify it down using the quadratic formula, you must first determine the values of a, b, and c in the formula you’re observing. Comparing it to the quadratic parent function, we can see that a is equal to 2, b is equal to 40, and c is equal to 202.
Next, we’ll need to plug this into the quadratic formula in order to simplify the equation and solve for x. These numbers in the quadratic formula would look something like this:
x = [-40 +- √(402 - 4(2)(202))] / 2(40) or x = (-40 +- √-16) / 80
In order to simplify this, we’ll need to realize a little something about mathematics and algebra first. In order to simplify the above equation, one would have to be able to solve for the square root of -16, which is an imaginary number that does not exist within the world of Algebra. Since the square root of -16 is not a real number and all x-intercepts are by definition real numbers, we can determine that this particular function does not have a real x-intercept.
To check this, plug it into a graphing calculator and witness how the parabola curves upwards and intersects with the y-axis, but does not intercept with the x-axis as it exists above the axis entirely.
The answer to the question “what are the x-intercepts of y = 2x2 + 40x + 202?” can either be phrased as “no real solutions” or “no x-intercepts,” because in the case of Algebra, both are true statements.
3. If the circumference of a round table is 90 inches, what is the area of the table to the nearest
tenth?
Answers
is the dilation an enlargement or reduction?
Answers
Answer:
The dilation is reduction.
PLEASE HELP ASAP
Factor 3x+6y-9z
Answers
can someone pls help me quickly
Answers
[tex]\frac{2}{\sqrt{2}}=\boxed{\sqrt{2}}[/tex]