Solve equation [2] for the variable y
[2] 2y = -5x + 1
[2] y = -5x/2 + 1/2
// Plug this in for variable y in equation [1]
[1] 7x - 3•(-5x/2+1/2) = -5
[1] 29x/2 = -7/2
[1] 29x = -7
// Solve equation [1] for the variable x
[1] 29x = - 7
[1] x = - 7/29
// By now we know this much :
x = -7/29
y = -5x/2+1/2
// Use the x value to solve for y
y = -(5/2)(-7/29)+1/2 = 32/29
Solution :
{x,y} = {-7/29,32/29}
2. A printing machine makes 240 books
in 30 hours. Written as a unit rate,
what is the speed at which the printing
machine makes books?
Answer quick plzzz
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer: 8 books/ hour
Explanation:
240 / 30 = 8 books/ hour
I hope this helped!
<!> Brainliest is appreciated! <!>
- Zack Slocum
*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆
Answer:
8 books
Step-by-step explanation:
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hope this helps!
Help me with these ASAP!!!!!!
Answer:
6) 108 in³
7) 30 ft³
Step-by-step explanation:
6) volume = 36 x 3 = 108 in³
7) total volume = 4 x 5 x 6 x 0.5 = 60 ft³, each person gets half = 30 ft³
A store pays $423 for a crystal vase and marks the price up by 46%. What is the amount of the mark-up?
Answer:
194.58$
Step-by-step explanation:
Have a great day! :)
If DE is not parallel to BC, what is DE?
Answer:
41
Step-by-step explanation:
BCDE is an isosceles trapezoid making the legs congruent.
DE = BC = 41
Please do correctly! If you do I will mark you Brainliest!
Answer:
The figure should be 56 units squared.
Step-by-step explanation:
The long side is 14 units long (6+6+2) and the short side is 4 units long, so 14 multiplied by 4 is 56.
Hello can someone help :)
What is the smallest possible probability in any experiment?
Answer:
your asking us 'in any experiment' and im
kinda confused. do u want my answer to apply to the image below? if so it would be 1/4
if not then let me know and elaborate
A basket of snacks contains 8 packs of oreos, 2 bags of chips, 6 packs of gummies, and 4 granola bars. Bill randomly choses 2 snacks. What is the probability a granola bar is chosen one choice after the other without replacing the first bar? {PLZZZZ HELP}
Answer:
There is a 3/95 probability that a granola bar is chosen one choice after the other without replacement.
Step-by-step explanation:
The probability of choosing a granola bar without replacing the first bar is 4/20, or 1/5. 4 represents the number of granola bars, and 20 represents the total snacks. Then there are 19 snacks and 3 granola bars which represents the 3/19 chance of getting a granola bar the second time without replacing it.
To find the probability of both of those events happening, multiply them.
(1/5) * (3/19) = 3/95.
Find x and y
Show all the work
Please answer correctly !!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!!
Answer:
13
Step-by-step explanation:
First, we need to find the area of the rectangle that the triangle RST is in, which would be 4*5=20. Second, we need to subtract the three triangles so the remaining area would be the area of the triangle that we need to solve for. The sum of the areas of the three triangles would be: 1/2*2*5 + 1/2*2*2 + 1/2*4*3 = 5 + 2 + 6 = 13.
Answer:
13
Step-by-step explanation:
Sheyna has less than 180 minutes to decorate 60 cookies for the bake sale. How long can she spend decorating each cookie to stay within her time limit? (a) Write and solve an inequality.
Answer:
m < 3
Step-by-step explanation:
Cookies to decorate = 60
Time < 180 minutes
The inequality
60m < 180
Where,
m = number of minutes
60m < 180
m < 180/60
m < 3
Less than 3 minutes decorating each cookie
Can anyone please help me with this math equation?
Answer:
1/5
Step-by-step explanation:
umm what's (3/5)/3
1/5
Use the Distributive Property to complete the equivalent expression. Enter your answers in the boxes.
4(y – 3) =
Answer:
4y−12
Step-by-step explanation:
4(y−3)
Use the distributive property to multiply 4 by y−3.
4y−12
Resolución de Problemas con Ecuaciones Lineales
o de Primer Grado.
Ejemplo
Utilizamos el lenguaje algebraico para hacer esa representación.
Sea x número de casos Infectados en Santiago
Sea 2x + 5,088 números de casos Infectados en Sto. Dgo.
Entonces x + 2x + 5,088 = 43,956
x + 2x = 43,956 - 5,088
3x = 38,868
x = 38,868
3
x = 12,912
Luego: x número de casos Infectados en Santiago = 12,912
2x + 5,088 número de casos Infectados en Sto. Dgo. = 2 (12,912) + 5,088 = 31,000 43,956
NESECITO QUE ME AYUDEN A RESOLVER EL PROBLEMA
ACTIVIDAD 1 : Según el boletín #329, d/f 10/02/2021 del Ministerio de Salud Pública, el número total de casos infectados hasta esa fecha en el Distrito Nacional, era el doble más 12,585 casos más que los que había en la provincia de la Santiago. ¿Cuántos contagiados hay en cada una de las provincias si entre las dos suman 89,766 casos?
HELP MEEEEE
Answer:
what? pls translate it to english
The ratio of red marbles to blue marbles in the bag was 3 to 4. If 24 marbles were blue, how many were red?
Answer:
there would have been 18 red
Step-by-step explanation:
round 33.885 to the nearest 100th
Answer:
33.89
Step-by-step explanation:
How to Calculate Rounding to the Nearest 100th?
If the digit after hundredth is greater than or equal to 5, add 1 to hundredth. Else remove the digit. Example
124.586
The third digit of right of decimal point is 6
The second digit after decimal point is 8 which is greater than 5
So add 1 to 8
Result = 124.59
Answer:
it's 33.89 hope it helps
The dot plot below represents how long it takes students in a 7th grade math class to
get to school every morning.
SOMEONE HELP PLZ GIVING OUT BRAINLEST
Answer:
40
Step-by-step explanation:
All you have to do is subtract the biggest number from the smallest in order to get your answer.
45 - 5 = 40. Hence, the answer is 40
Hope this helps! :)
The number of students in the class should be considered as the 40.
Calculation of the number of students in the class;= Largest commute time - smallest commute time
= 45 - 5
= 40
Here we basically deduct the smallest commute time from the largest commute time so that the no of student in the class should come.
Learn more about class here: https://brainly.com/question/17217914
Derek bought his truck for $30,000. The value has dropped by $900 each year. He determined that the value of his truck (V) can be modeled by: V = 30,000 - 900x where x is the number of years since he bought his truck.
In how many years will his truck be worth $4,800?
Answer:
28 years
Step-by-step explanation:
The difference between 30,000 and 4,800 is 25200. So we divide this number by 900 to find out how many years it will take for the truck to depreciate to this value
At a school carnival, the diameter of the mat of a trampoline is 16 feet and the diameter of its metal frame is 18 feet. What is the length, in feet, of the metal frame that surrounds the trampoline? Use 3.14 for π and round your answer to the nearest tenth.
290
This is the answer
A, B, and C are polynomials, where A = n, B = 2n + 6, and C = n2 – 1. What is AB – C in simplest form?
–n2 + 3n + 5
n2 + 6n + 1
2n2 + 6n – 1
3n2 + 5
Answer:
n^2 + 6n + 1
Step-by-step explanation:
Firstly, we have to evaluate AB
What we have to do is to multiply A and B
We have this as;
n(2n + 6) = 2n^2 + 6n
Now, we have to subtract the value of C from here and that is;
(2n^2 + 6n) - (n^2 - 1)
2n^2 + 6n - n^2 + 1
= 2n^2 -n^2 + 6n + 1
= n^2 + 6n + 1
Answer:
B
Step-by-step explanation:
Find the value of x and each arc measure
Answer:
x=11
mMN=65
mNP=115
mNQP=245
Step-by-step explanation:
10x-45=6x-1
4x=44
x=11
mMN 6(11)-1=65/ 10(11)-45=65
mNP 180-65=115
mNQP 65+115+65=245
Can anyone help me with this math equation??
Answer:
0.4
Step-by-step explanation:
if u reduce that fraction it would be 4/10 which is 0.4 in decimal form
What are the solutions to 2(x – 7)2 = 32
A. x = 7+ 132
B.x = V65
C.x:3 and x = 11
D. X:-1 and x = 15
Answer:
C. x:3 and x = 11
The scatter plot shows the number of new magazine subscriptions compared with the percentage of advertisements in the magazines
A. The number of new subscribers to the new magazines will increase
B. The number of new subscribers to the magazines will decrease
C. The advertising revenue will increase the profit of the magazine
D. There is no association in the data to make a prediction
Answer:
The answer is B!
Step-by-step explanation:
I hope this helps! Have a great rest of your day!
pls help! giving thanks
Answer:
I would say C but also not sure
plss help i’ll give brainliest thank you!
Answer:
36
Step-by-step explanation:
The formula of LCM is LCM(a,b) = ( a × b) / GCF (a,b)
The Greatest Common Factor of (9,12) = 3
Therefore
LCM of 9 and 12 = (9 × 12) / 3
= 108/3 = 36
LCM of 9 and 12 = 36
Irrespective of the method, the solution to our question LCM of 9 and 12 is the same.
Therefore, LCM of 9 and 12 is 36
Complete the function table for the function: y=4x+4
х
у
-6
-1
2
8
Answer:
-6,-1
Step-by-step explanation:
y=4x+4 then simplify and came up with -6,-1.
khan academy! please helppp
Answer: Figure A to Figure B is a scale factor of 0.5
Step-by-step explanation:
It's not too hard to figure out scale factor, since the two shapes are the same aside from their scale. Notice how Figure A is 4 units tall, and that Figure Bis 2 units tall. From one figure to another, use the equation Figure B/Figure A to find the scale factor. Although you won't really need to memorize all this, you can count the amount of units on your fingers and figure it out from there.
Solve for X. Round your answer to the nearest tenth.
please solve for M<PRQ
Answer:
[tex] m\angle PRQ =49\degree [/tex]
Step-by-step explanation:
[tex] m\angle PSQ = 360\degree - (128\degree + 134\degree )[/tex]
[tex] m\angle PSQ = 360\degree - 262\degree [/tex]
[tex] m\angle PSQ = 98\degree [/tex]
Now, by inscribed angle theorem:
[tex] m\angle PRQ = \frac{1}{2} \times m\angle PSQ [/tex]
[tex] m\angle PRQ = \frac{1}{2} \times 98\degree [/tex]
[tex] m\angle PRQ =49\degree [/tex]
Find -4- 2(1)/(2). Model the expression on the number line by drawing an arrow
I'm giving 30 points for this one
Answer:
Step-by-step explanation:
It would be the middle of the 6 and 5 because you go -4 plus to to the left and in half would be in the middle of that.