Answer:
3x = 3 + 2y -------------> 3x - 2y = 3 {subtracted 2y from each side of top equation}
(-4/3)x + y = -2/3 ------> -4x + 3y = -2 {multiplied bottom equation by 3}
3x - 2y = 3 ------> 12x - 8y = 12 {multiplied top equation by 4}
-4x + 3y = -2-----> -12x + 9y = -6 {multiplied bottom equation by 3}
12x - 8y = 12
-12x + 9y = -6
--------------
y = 6 {added the two equations}
3x = 3 + 2y {original top equation}
3x = 3 + 2(6) {substituted 6, in for y, into top equation}
3x = 3 + 12 {multiplied}
3x = 15 {added}
x = 5 {divided each side by 3}
x = 5 and y = 6
Step-by-step explanation:
Answer:
x= 0
y= -1
Step-by-step explanation:
Hope this helps.
The picture above shows the question.
Answer:
angle one is 62 degrees
Step-by-step explanation:
3x+2+5x+18=180
x=20
5*20+18=118
180-118=62
please help with questions. This is geometry btw
Answer:
I'm pretty sure it's true.
Step-by-step explanation:
please help me thanks
Answer:
C:124
Step-by-step explanation:
10+2=12
30+20=50
10+30=40
2+20=22
12+50+40+22=124
WHO WANTS BRAINLIESTT ?????? PLEASE answer this question correctly !!!! STEP BY STEP !!!!!!!!!!!!!!!
Answer:
x = 45
y = 60
Step-by-step explanation:
2x = 90
2x (1/2) = 90 (1/2)
x = 45
3y - 2y = 90
3y - 2(45) = 90
3y - 90 = 90
3y - 90 (+90) = 90 (+90)
3y = 180
3y (1/3) = 180 (1/3)
y = 60
Hope this helps :)
What is the value of r in the equation?
-1.5(4-r)--12
-6
O4
O
4
O6
Answer:
I am going to say 6 , please let me know if I am wrong :)
WILL MARK BRAINLIEST
Divide an exponential and cubic function.
Answer:
where's the question
Step-by-step explanation:
estimate √9.7+3.88×6.21
9514 1404 393
Answer:
a little more than 27
Step-by-step explanation:
Estimates are generally made by approximating the numbers using 1 or 2 significant digits. The idea is to do as much mental arithmetic as possible, not involving a calculator. Here, the estimate can be based on rounding the values like this:
√9.7 +3.88 × 6.21 ≈ √9 +4 × 6 = 3 +24 = 27 . . . estimated expression value
__
Another aspect of estimating is determining the approximate error involved.
We know that √9.7 will be more than √9 = 3, and less than √10 ≈ 3.16*. Its real value may be about 3.1.
3.88 is less than 4 by 0.12, or 3%. 6.21 is greater than 6 by .21, or 3.5%. So, the estimated product of 24 will be on the order of -3% +3.5% = 0.5% too low. Of course 1% of 24 is 0.24, so 1/2% will be about 0.12. Now, we are able to estimate that our estimate is about 0.2 units too low. (The actual value of the expression is an irrational number that rounds to about 27.2093.)
_____
* The value of 3.16 for √10 is not so hard to remember, because it is just slightly more than π ≈ 3.14.
__
Additional comment
Small percentages can usually be added and subtracted without introducing too much additional error. (The smaller the percentages, the less additional error is introduced.) Here, the error in our estimated product can be more accurately determined by computing ...
(1 -3%)(1 +3.5%) = 1 +0.5% -0.105% = 1 +0.395% . . . . . . (not 1 +0.5%)
That is, our product's actual value is 24.0948, not 24.12.
WILL GIVE BRAINLIEST Bryan owes the bank $7. He gets paid $35 for
babysitting and deposits it into his account. What will
his bank balance show?
Answer:
$28
Step-by-step explanation:
HELP IM BEING TIMED!!!!!
Answer:
10
Step-by-step explanation:
Rad10 times rad10 equals rad100 which is simplified to 10
Answer:
A: 10
Step-by-step explanation:
√10 × √10
= 10
Which number line represents the solution to the inequality −7x−13≥8
−
7
x
−
13
≥
8
?
Answer:
x≥−
7
13
Step-by-step explanation:
-7x<=13
The measures of the angles of a triangle are shown in the figure below. Solve for x.
xº
23°
Please help m
The measure of the angle x in the right triangle is 67 degrees.
How to find the angle of a right triangle?A right angle triangle has one of its angles as 90 degrees.
The sum of angle in a triangle is 180 degrees.
Therefore,
x + 90 + 23 = 180
x + 113 = 180
x + 113 - 113 = 180 - 113
x = 67°
learn more on right triangle here: https://brainly.com/question/6322314
#SPJ1
MATH PLEASE HELP TwT
Answer:
The first and the third answer!
Step-by-step explanation:
The slope is NOT -6, it is -3/2 !!
The y intercept is 0
and the last one isn't right bc the slope and intercept is wrong!!!
I hope this helps, tho!! Have an awesome day :D
Find the value of x. Give reasons to justify your solution-
Answer:
x = 34
Step-by-step explanation:
∠ PSR and ∠ TSU are vertical angles and congruent, then
∠ PSR = 4x, thus ∠ PSQ = x
The exterior angle of a triangle is equal to the 2 opposite interior angles.
∠ SQR is an exterior angle of Δ PQS , thus
x + x = 68
2x = 68 ( divide both sides by 2 )
x = 34
Answer:
X = 34°
Step-by-step explanation:
In order to solve this question we will need to know the following, when two lines intersect the opposite angles at that point are equal to each other, that the sum of all angles of a triangle is 180 degrees, and that the angle of a straight line is equal to 180 degrees.
Frist we will have to notice that ∠TSU is equal to ∠PSR, because they are opposite to each other (If you would like to understand this more you can research on a topic call "vertical angels"). Now it is important to understand the following.
∠PSR = ∠PSQ + QSR
Since ∠PSR = ∠TSU = 4x, ∠QSR = 3x ⇒
⇒ ∠PSR = ∠PSQ + QSR
4x = ∠PSQ + 3x
4x - 3x = ∠PSQ
x = ∠PSQ
Now, since the sum of all angles in a triangle is equal to 180 we can now say the following:
∠QPS + ∠PSQ + ∠PQS = 180°
In order to find out what PQS is equal to we need to use our knowledge about the angel of a strait line (the angel of a strait line is equal to 180°).
So now we can say the following:
180° = ∠PQS + SQR
∠PQS = 180° - ∠SQR
Since we know that ∠SQR = 68° ⇒
⇒∠PQS = 180° - ∠SQR
∠PQS = 180° - 68°
∠PQS = 112°
Since ∠QPS = x, PSQ = x, and ∠PQS = 112° ⇒
⇒ ∠QPS + ∠PSQ + ∠PQS = 180°
x + x + 112° = 180°
2x = 180° - 112°
2x = 68°
x = 34°
Pls help with both...........
Answer:
1000
512 is ans ...............
which statement is true?
What is the slope of this here line?
Answer:
3/5
Step-by-step explanation:
It rose 3 and ran 5 (rise over run)
If the equation of a line is y = - 5x + 3, which is true?
A) Slope is 3, Y-Intercept is -5
B) Slope is -5 , Y- Intercept is 0
C) Slope is -5, Y-Intercept is 3
D) Slope is 5, Y-Intercept is -3
PLS ANSWER 64 POINTS (64 POINTS AND ILL MARK BRAINIEST) PLS...
Answer:
A
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
So the formula for slope is y = mx + b
Here is what it looks like so far: y = -5x + 3
In that equation, -5 is m (slope)
and 3 is b (y-intercept)
So the answer is C
bj...
Suppose that you own a compact car
that you bought new for 18,000 dollars.
The value of this particular make of car is
known to depreciate at a rate of 20%
per year.
Define a unit for each quantity in the
worksheet. Then enter a variable for
the time since you bought the car new
Answer:
Depreciation and Written Down Value for first 5 years of purchase is explained.
Step-by-step explanation:
The Car was purchased for $18000 this will be depreciated at a rate of 20% per year.
Declining Method
Year 1
$18,000 * 20% = $3,600 Depreciation
$18,000 - $3,600 = $14,400 Written Down Value WDV
Year 2
$14,400 * 20% = $2,880 Depreciation
$14,400 - $2,880 = $11,520 WDV
Year 3
$11,520 * 20% = $2,304 Depreciation
$11,520 - $2,304 = $9,216 WDV
Year 4
$9,216 * 20% = $1,843 Depreciation
$9,216 - $1,843 = $7,373 WDV
Year 5
$7,373 * 20% = $1,475 Depreciation
$7,373 - $1,475 = 5,898 WDV
Ian bought a cup of coffee. At first, he sipped slowly. As it cooled down, he drank more quickly. The last bit was cold, and he dumped it out
Answer:
ian just wasted the last bit of coffee.
Step-by-step explanation:
4 / 1.21 what’s the answer?
Answer:
3.30
Step-by-step explanation:
Help I’m being timed!!!!
Answer:
C the 3 one is the answer
Question 15
If you have these three lengths 6cm,7cm,6cm can they make a Triangle?
O True
False
Answer:
the answer is yes
since there is there sides that's what shows in a triangle
Angle WXY underwent a sequence of two rotations around different centers. The original size of WXY is 82°. what is the size of the angle after the sequence of rotations?
Given:
[tex]\angle WXY=82^\circ[/tex]
It underwent a sequence of two rotations around different centers.
To find:
The size of the angle WXY after the sequence of rotations.
Solution:
We know that, rotation is a rigid transformation. It means, the size and shape of the figure remains the same after the rotations. It other words, the figure and its image are congruent after rotation.
So, the measure of angle WXY remains same after the sequence of rotations, i.e.,
[tex]\angle W''X''Y''=82^\circ[/tex]
where, [tex]\angle W'X"Y"[/tex] is the image of [tex]\angle WXY[/tex] after the sequence of rotations.
Therefore, the size of the angle WXY after the sequence of rotations is 82°.
Answers choices are in the picture
Answer: I believe the answer is b.
PLZZZZZZZZZZZZZZZZZZZZZZZZZ HELP MEEEEEEEEEEE PLZ SHOW YOUR WORK SO I CAN GIVE YOU BRAINLIEST
Solve the inequality below.
Answer:
x<6 is the answerrrrr
Step-by-step explanation:
hope it helps give me brainliest
HELP!!! PLEASE TELL ME WHICH GRAPH GOES WHERE!!! DON'T IGNORE PLEASE!!!
So y=mx+b is still prevalent here even if it's an inequality. Meaning your slope AND y-intercept can help you. Even if it's in ax+by=c you can easily get the y alone into slope-intercept.
y<_3x+5 for example. For one, it is y is less than or equal to 3x+5. So the line shouldn't be dotted. So that leaves us with the two far-right graphs to look at. 5 is our y-intercept in the equation. So look at our graph and see which one has the line passing through 5. They both do. Okay, well we can still use our sign, it shows that y is LESS than 3x+5. So the shaded blue part should be on the right. If it was the other way around it would be the left. So our graph should be the far right for this equation.
Hope this helps... I know it's kind of messy. If you need any more help let me know. But I hope I outlined what to look for.
Help me pls !!!!!!!!!’n
Answer:
x=-31/4
Step-by-step explanation:
Cross multiply and bring 3 to the opposite side.
3(3x+8) =5x-7
9x+24=5x-7
Bring all the x to one side and the numbers to the other
9x-5x=-7-24
4x=-31
x=-31/4
In Ms. Monroe's 2nd Period class, 5 students made an A
and 6 students made a B on the last quiz in math class
out of a total of 32 students.
What percent of students made an A or B combined?
(ROUND TO THE NEAREST WHOLE PERCENT)
Y
Answer:
yes
Step-by-step explanation: yes
HELP!!!! THIS IS DUE AT 9:30!!!
Answer:
C) x=8
Step-by-step explanation:
180=40+(8x-24)+(6x+10)
180=26+14x
154=14x
11=x
[tex]11\neq8[/tex]
Answer The Question Below:
Answer:68600m
Step-by-step explanation:98 meters to cm is 9800 then times it by 7 you get 68600