2x – 1 = y + 4
3y +1 = 3х – 2
Answer:x=4 y=3
Step-by-step explanation:
Let's solve your system by substitution.
2x−1=y+4;3y+1=3x−2
Step: Solve2x−1=y+4for y:
2x−1=y+4
2x−1+−y=y+4+−y(Add -y to both sides)
2x−y−1=4
2x−y−1+−2x=4+−2x(Add -2x to both sides)
−y−1=−2x+4
−y−1+1=−2x+4+1(Add 1 to both sides)
−y=−2x+5
−y
−1
=
−2x+5
−1
(Divide both sides by -1)
y=2x−5
Step: Substitute2x−5foryin3y+1=3x−2:
3y+1=3x−2
3(2x−5)+1=3x−2
6x−14=3x−2(Simplify both sides of the equation)
6x−14+−3x=3x−2+−3x(Add -3x to both sides)
3x−14=−2
3x−14+14=−2+14(Add 14 to both sides)
3x=12
3x
3
=
12
3
(Divide both sides by 3)
x=4
Step: Substitute4forxiny=2x−5:
y=2x−5
y=(2)(4)−5
y=3(Simplify both sides of the equation)
can someone please like pretty please help me with this? i seriously need help and my teacher won’t help me with it even after I’ve told him I don’t understand it and it’s about to be due and Emmy whole grade depends on it and I have no idea how to solve it ! I’ll mark you brainleist and give a 5.0 rating, PLEASE HELP !!
Answer:
She made $1230 more on printed shirts than plain shirts in 25 weeks.
Step-by-step explanation:
Hi,
Okay, I have to admit, this is pretty complicated. But, it's not impossible :) First things first, we know that the equation in the table is the number of shirts sold after W number of weeks. We know that we need to, first, find the total number of shirts sold in 25 weeks.
The equation for the plain shirts is 5w -4. Let's start with that.
Plugin 25 for w to find the total number of plain shirts sold after 25 weeks.
5w - 4
5(25) - 4
= 121
She sold 121 plain shirts after 25 weeks. But we're not done yet, we still have to see how much money she made after selling 121 plain shirts. To do this, we have to multiply the total number of plains shirts sold by 15. (we know that each plain short costs $15, that's why we're multiplying it by 121)
When you do this...
121 x 15
You get...
$1815
She got $1815 after 25 weeks just for selling plain shirts.
Now, let's find the total cost of printed shirts after 25 weeks.
The equation for the printed shirts if 8w + 3.
8w + 3
8(25) + 3
= 203
She sold 203 printed shirts in 25 weeks. Let's find the cost. Each printed shirt costs $15 so we need to multiply 203 by 15.
203 x 15
You get...
$3045
She made $3045 by selling printed shirts in 25 weeks.
Now, we have to subtract $3045 by $1815 to find how much more she made. You get...
3045 - 1815
= $1230
She made $1230 more on printed shirts than plain shirts in 25 weeks.
I really hope this helps :)
Deon invests $15,000 in a savings account that pays 3% simple interest. How much will be in the account after 4 years if Deon makes no withdrawals or deposits to the account?
Answer:
$16,800
Step-by-step explanation:
The amount that would be in the account = amount deposited + interest earned on deposit
interest earned on deposit can be determined by determining the simple interest
Simple interest = principal x time x interest rate
principal = the amount deposited = $15,000
Time = the duration of the deposit = 4 years
interest rate = the percentage on deposit that would be earned = 3%
15,000 x 0.03 x 4 = $1,800
The amount that would be in the account = $15,000 + $1800 = $16,800
WORD PROBLEM
also thank you so much for the help
Derrick bought 7 tacos and 5 burritos and spent a total of $37.50. Stella bought 3 tacos and1 burrito and spent a total of $11.50. Determine the price for one taco and one burrito
Need help with this trigonometry word problem
The angle of elevation of the top of the building at a distance of 50 m from its foot on a horizontal plane is found to be 60°. Find the height of the building.
Please show your work
Answer:
[tex] \huge \boxed{ \boxed{ 50 \sqrt{3} \: or \: 86.6}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:trigonometryPEMDASlet's solve:to find the height we need to use tan function because we are given adjacent and angle and we need to figure out opposite (height) [tex]\tan(\theta)=\dfrac{opposite}{adjacent}[/tex]
let opposite be AC
let adjacent be BC
according to the question:
[tex] \quad \: \tan( {60}^{ \circ} ) = \dfrac{AC}{BC} [/tex]
now we need a little bit algebra to figure out AC (height)
[tex] \sf \: substitute \: the \: given\: value \: of \: BC : \\ \tan( {60}^{ \circ} ) = \frac{AC}{50} [/tex][tex] \sf sustitute \: the \: value \: of \: \tan( {60}^{ \circ} ) \: i.e \: \sqrt{3} : \\ \sqrt{3 } = \frac{AC }{50} [/tex][tex] \sf cross \: multiplication: \\ 50 \sqrt{3} = AC[/tex][tex] \sf swap \: sides \: (your \: wil) : \\ AC = 50 \sqrt{3} \\AC = 86.6 \: ( \sf \: decimal \: if\: needed)[/tex][tex]\text{we are done!}[/tex]
Can anyone help me please
Answer:
Step-by-step explanation:
Sorry bro can’t help you on that one
What is the biggest difference between an adult's
budget and a teen's budget?
Answer:
Parents usually have a bigger budget bc they can work , teens on the other hand depending on age cant
Step-by-step explanation:
please solve this: expand (4+2x)1/2
Answer:
Refer to the attachment. Hope it helps you. Please mark as the brainliest. Thanks
the book that Rudy chose to read for his book report 198 Pages you can read 9 pages in 15 minutes but he takes five minute breaks every half an hour Rudy begins reading at 8 a.M. What time will you finish reading the 198 pages
Answer:
2:25 PM
Step-by-step explanation:
The computation of the finish time is given below:
As in the given situation Rudy could read 9 pages in 15 minutes
So in one minute she could read
= 9 ÷ 15 minutes
= 0.6 pages
Now for 198 pages she could take
= 198 × 1minute ÷ 0.6 pages
= 330 minutes
On break
= 330 ÷ 30 × 5 minutes
= 55 minutes
Consumed minutes
= 330 + 55
= 385 min
= 6 hours and 25 min
Now the finished time is
= 8:00 AM + 6:25
= 14:25
= 2:25 PM
Make a conditional relative frequency table for The Columns of movie type. Determine which statement has the strongest association.
A. Females prefer drama movies.
B. Males prefer comedy movies.
C. Males prefer thriller movies.
D. Females prefer comedy movies.
Answer: Option A.
Step-by-step explanation:
The association can be found as the quotient between the elements with a given characteristic and the total number of elements.
For example, in option A we have:
A. Females prefer drama movies.
There are 72 females who like drama movies, and there is a total of 126 females, the quotient is:
Q = 72/126 = 0.57
This is the relative frequency of females who like's drama movies
Then the relative frequency table will be something like:
Males:
who prefer comedy: Q = 45/125 = 0.36
who prefer drama: Q = 15/125 = 0.12
who prefer thriller: Q = 65/125 = 0.52
Females:
who prefer comedy: Q = 36/126 = 0.29
who prefer drama: Q = 72/126 = 0.57
who prefer thriller: Q = 18/125 = 0.14
Now we want to answer, which one of the given options has the strongest association.
As larger is the value Q, larger is the association.
We can clearly see that, from the given options, the strongest association is for females who prefer drama, then the correct option is A.
Option A
Step-by-step explanation:
i got it right on me test
Someone please help me I’ll give out brainliest please dont answer if you don’t know
Answer:
[tex]3x-1[/tex]
Step-by-step explanation:
[tex]3+2(x-2)+x=3+2x-2.2+x=(2x+x)+(3-4)\\=3x-1[/tex]
Answer:
3x-1
Step-by-step explanation:
trust me i know
Why do you think triangles and math are important and bridges you must use proper math terms and provide your reason as wide triangles and bridges are important must contain 3 to 4 sentences. Help
PLS PLS HELP IM A HOPELESS 6th GRADER
Answer:
10
Step-by-step explanation:
You can count from point A to B.
State whether or not each of the triangles are similar (use either AA, SSS, or SAS)
Answer:
ΔABC and HGF are similar.
Step-by-step explanation:
In the given triangles ABC and HGF,
If both the triangles are similar,
Their corresponding sides will be proportional.
[tex]\frac{AB}{GH}=\frac{BC}{FG}= \frac{AB}{HF}[/tex]
[tex]\frac{72}{12}=\frac{48}{8}= \frac{84}{14}[/tex]
6 = 6 = 6
True.
Therefore, ΔABC and HGF are similar.
There are 36 dinosaurs pictured in Karmita's book. If 2/3 of them were plant eaters, how many were plant eaters.
A.12 plant-eaters
B.18 plant-eaters
C.24 plant-eaters
D.28 plant-eaters
need help with this please
Answer:
-2/5
Step-by-step explanation:
Exactly the opposite of the sign, opposite of + is negative (-)
Shanti is making a patchwork quilt. Each piece of fabric has a black star on it. She uses the grid shown to plan the locations of the different fabric squares.
1. What transformation maps square 1 onto square 2?
2.what transformation maps square 2 onto square 3?
3. What transformation maps square 1 onto square 5?
Answer:
1. Slide over the Y-Axis
2. Reflection over the Y-Axis
3. Reflection over the y axis first as well as a rotation
what is x 1/4(8x+12)=21
Answer:
x = 9
Step-by-step explanation:
1/4(8x+12) =21
1/4 * 8x = 2x
1/4 * 12 = 3
2x + 3 = 21
21 - 3 = 18
2x = 18
18/2 = 9
x = 9
Answer:
x=9
Step-by-step explanation:
Try first by multiplying the 8x and 12 in the brackets by 1/4 so it will be:2x+3=21
Now subtract 3 from each side2x=18
Then divide each side by 2x=9
Pls help me i’m on my test and i’m stuck
A car costs $45,000 new but depreciates at a rate of 19% per year. What is the value of the car after four years?
A
$19,371.02
B
$44,744.00
c.
$45,000.43
D.
$90,240.26
Answer:It is 19,371.02
Step-by-step explanation: If You Find out What 19 Percent of the number is then subtract it from your Number Then Repeat This 4 Times
What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid
Help pls!! What is the location of L?
Answer:
Its kind of blurry but i think its 3,4
Step-by-step explanation:
If X axis and Y axis goes by 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Then it would be 3,4
Answer:
assuming you want the coordinates it is (3,4)
Step-by-step explanation:
Someone plz help me giving brainliest
Answer:
1. ROUND
2. COMMUNITIVE
3. AREA MODEL
4. MIXED NUMBERS
FALSE
FALSE
TRUE
TRUE
Step-by-step explanation:
HOPE THIS HELPS YOU OUT! BE THE FIRST TO COMMENT /FREE ON THESE COMMENTS TO GET A FREE BRAINLIY AWARD! PLZ ALSO CONDISER MARKING ME BRAINLIEST AND THANKS! MY JOURNEY HAS JUST BEGAN ON BRAINLY SO ASK ME IF U HAVE ANY QUESTIONS! -BEACHVIBES23
The owner of a bookstore orders 32 copies of a book for $12.34 each. What was the total cost for the books? Enter your answer in the box.
Answer:
It costs $394.88
Step-by-step explanation:
Was it correct??
Answer:
The total cost for 32 books is $394.88.
Step-by-step explanation:
FIND THE AREA (LEAVE EXPLANATION)
Answer:
82 mm^2
Step-by-step explanation:
you would have to find the area for 2 squares. The first is 8 x 9, so the area of that would be 72. The second square is 5 x 2, which is ten. Add those together to get 82
Each afternoon at leat 40 people buy coffee from a coffee shop .Write an inequality that represents this situation.Let x represent the number of people who buy coffee in an coffee in an afternoon
Answer:
x ≥ 40
Step-by-step explanation:
Given:
At least people buy coffee = 40
Number of people buy coffee = x
Find:
Inequality
Computation:
Number of people buy coffee ≥ At least people buy coffee
x ≥ 40
Miguel can type 42 words in 6 minutes
What is his rate in words per minute?
I NEED HELP ASAP! NEEDING SOMEONE
Answer:
The answer is G
Step-by-step explanation:
Here is a right square pyramid. Round answers in this problem to the nearest tenth if necessary. What is the volume of the pyramid? Remember V (square pyramid) = (1/3) Bh, where B = area of base.
Answer:
Step-by-step explanation:
r = radius h = height s = slant height V = volume L = lateral surface area B = base surface area A = total surface area π = pi = 3.14159 √ = square root
What type of sequence is shown below?
10; 110; 1,110; 11,110; ...
arithmetic
geometric
neither
DONE
Answer:
The first one's C-Neither, The second one's A- arithmetic and the last one's 11
Step-by-step explanation:
I just did the assignment myself just now and P.S. UNUS ANNUS
Given sequence us neither arithmetic sequence nor geometric sequence.
What is sequence?"It is the list of elements arranged in particular order."
What is an arithmetic sequence?"It is a sequence in which consecutive terms have common difference."
What is geometric sequence?"It is sequence in which consecutive terms have common ratio."
For given example,
we have a sequence 10; 110; 1,110; 11,110; . . .
If we take the difference between consecutive terms then it would be,
110 - 10 = 100
1110 - 110 = 1000
11110 - 1110 = 10000
this means, the difference between consecutive terms is not constant.
So, given sequence is not an arithmetic sequence.
Now, we take the ratio between consecutive terms then it would be,
110/10 = 11
1110/110 = 10.09
11110/1110 = 10.009
this means, the ratio between consecutive terms is not constant.
So, given sequence is not a geometric sequence.
Therefore, given sequence us neither arithmetic sequence nor geometric sequence.
Learn more about sequence here:
https://brainly.com/question/11266123
#SPJ2
Please help thank you so much
Answer:
[tex]\Huge\boxed{x=15}[/tex]
Step-by-step explanation:
Hello There!
The angle labeled 6x is a right angle
If an angle is formed using the diameter of a circle then the opposite angle of that side is a right angle
So 6x = 90
isolate the variable
divide each side by 6
90/6= 15
6x/6=x
we're left with x = 15
Answer: 15
Step-by-step explanation:
Since the angle looks to be around 90 degrees and the x is timsed by 6 the answer would have to be a lower number. And from the options only 15 would work.