solve the systems using elimination.
2x + 3y = 17
3x + y = 15
Answers
Answer:
x = 4
y = 3
(4,3)
Step-by-step explanation:
Related Questions
Solve Tor the variable X. 4/5х + 8 = 29 + 1/5x
Answers
Answer:
x=35
Step-by-step explanation:
Answer:
X= -5
Step-by-step explanation:
The length of Lila's bedroom is 5 yards longer
than its width. Write an expression for the perimeter
of the bedroom. (APR.1)
A. 5x +4
B. 4x + 10
C. 10x + 4
D. 4x + 5
Answers
Answer:
D. 4x+5
Step-by-step explanation:
Not sure but I think it makes sense
A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 140 lb and each box of books weighs 60 lb. The maximum capacity of the elevator is 970 lb. How many boxes of books can the delivery person bring up at one time?
The delivery person can bring up_____boxes of books.
HEY YALL PLS HELP ME IN DIS PLSSSSS
Answers
Answer:He can bring up 13.8333333333 boxes each trip
Step-by-step explanation:
970-140= 830
830÷60=13.8333333333
What is “r” to the square root of two divided by “r” to the square root of 12
Answers
Answer:
0.0277777777778
Step-by-step explanation:
4 divided by 144 = that if you meant 144 divided by four the answer is 36
Solve the system of equations 9x-6y=-12 and 8x-5y=-8 by combining the equations
Answers
Answer:
(x, y) = (4, 8)
Step-by-step explanation:
We can multiply the first equation by -8 and the second by +9, then add the result.
-8(9x -6y) +9(8x -5y) = -8(-12) +9(-8)
-72x +48y +72x -45y = 96 -72
3y = 24
y = 8
Substituting for y in the first equation, we have ...
9x -6(8) = -12
9x = 36 . . . . . . add 48
x = 4
The solution is (x, y) = (4, 8).
8.) Write an inequality that can be used to represent this situation, where x represents Olivia’s sister’s age. (Short answer)
Olivia is 6 years older than her sister. The sum of their ages is no more than 28 years.
Bonus: What is the oldest age her sister can be?
please show work!! It took me ages to try to solve this!
thank you future answers! :D
Answers
Answer:
The oldest age of Olivia’s sister can be 11 years.
Step-by-step explanation:
Given: Olivia’s sister’s age is x years.
To write: inequality that can be used to represent the given situation.
As Olivia is 6 years older than her sister,
Olivia's age [tex]=x+6[/tex]
As the sum of their ages is no more than 28 years,
[tex]x+(x+6)\leq 28\\2x+6\leq 28\\2x\leq 28-6\\2x\leq 22\\x\leq \frac{22}{2}\\ x\leq 11[/tex]
So, the oldest age of Olivia’s sister can be 11 years.
In the function rule f(n) = 6n + 3, what is the 8th term?
Answers
Answer:
51
Step-by-step explanation:
you plug 8 in for n to get 6*8 which is 48 and then add 3 which is 51.
________ is a social system that forced Indians to work in the colony mines and as indentured servantitude.
A) Escondidas B) Minimum Wagers
C) Servitados D) Encomiendas
Answers
Answer:
Answer is D
Step-by-step explanation:
Answer:
D Encomiendias
Step-by-step explanation:
What is 2 + 2?
WILL MARK BRAINLIEST
i'm so confused HELP
Answers
Answer:
4 HAH AHQ HQH!!!
Step-by-step explanation:
1 1 1 1
Answer:
4
Step-by-step explanation:
2+2 is 4
Can someone help me, please and thank you? I'll give BRAINLEST to the person who gets it right!!!
Answers
Answer:
1) r = 17
2) n = -10
3) n = 7
4) n = -135
5) x = -1
6) m = -11
7) n = -7
8) x = 5
Step-by-step explanation:
1) To solve for any variable, make sure to isolate the variable
2) Next, make sure to do the same thing you do to one side of the equation the other side, so te equation is in balance
3) Finally, solve for your variable!
Hope this helps!
please answer this question I will give brainliest please ignore c
Answers
Answer:
the relation between angles a and b is that they both add up to 180 degrees. l and m do not seem parallel to me because their corresponding angles do not add up to 180 degrees.
Answer:
Step-by-step explanation:
a)angles a and b are a linear pair
b)no, because in parallel lines alternate exterior angles are always equal but here they are not equal
Order the following numbers from least to greatest 4.6, 4.4, 4.12, 4.6 repeating
Answers
Answer:
4.12, 4.4, 4.6, 4.6 repeating. hope this helps!
Which is an example of structured observation?
A. A parent visits her son's second-grade classroom to
observe his behavior.
B. A zoo employee observes a new gorilla's interaction
with the other gorillas in the enclosure.
C. A new employee sits beside a veteran employee to see what types of situations occur during a normal work
day.
D. After receiving an anonymous tip, a supervisor
observes his staff to see if any of them are downloading music while they should be working.
Answers
The example of structured observation is when a new employee sits beside a veteran employee to see what types of situations occur during a normal work
For better understanding, let's explain what structure observation means
Structured Observation is simply refered to as method or technique often used for data collection. it is said to rely on wide or explicit rules for observing, categorizing, and recording behaviour of all types.There is direct observation of behaviour of which is not often used due to the fact that there is limited access to some social spaces and difficulty in capturing some behaviours. It is made up of smaller sample sizes.From the above we can therefore say that the answer The example of structured observation is when a new employee sits beside a veteran employee to see what types of situations occur during a normal work is correct
Learn more about structured observation from:
https://brainly.com/question/7871590
Help your boy out I’m not smart;)
Answers
Answer:
(1,19)
Step-by-step explanation:
point M is the point of JK
x coordinate of M = x1+x2/2= -10+12/2=2/2=1
y coordinate of M= y2+y2/2= 25+13/2=38/2=19
(1,19)
Grayson has already prepared 16 kilograms of dough and will continue preparing 1 kilogram
of dough every hour. How much dough did Grayson prepare if he worked for 6 hours?
Answers
Answer:
the answer is 22 kilograms
Step-by-step explanation:
1 x 6 = 6
6 + 16 = 22
Noah took pictures of different lizards for a science project. He wanted 20 pictures altogether, but he only had 11 pictures so far. How many more pictures did he need?
Answers
Answer:
9 pictures
Step-by-step explanation:
if Noah needed 20 pictures in all ,but only had 11 he would subtract 11 from 20 leaving Noah with 9 pictures.
Solve for n 11(n – 1) + 35 = 3n
Answers
Answer:
n=-3
Step-by-step explanation:
Given: 11(n-1)+35=3n
Multiply 11 with the parenthesis. 11n-11+35=3n
Combine like terms. 11n+24=3n
Take 3n away from each side. 8n+24=0
Take 24 away from each side. 8n=-24
Divide each side by 8. n=-3
Jon is 5 years older than Dana. Ella is twice as old as Jon and Zach is twice as old as Dana. The sum of their ages is 93. How old is Jon?
Answers
Answer:
Dana's age = 13 years
Zach's age = 26 years
Jon's age= 18 years
Ella's age = 36 years
Step-by-step explanation:
Let
Dana's age = x
Zach's age = 2x
Jon's age= x + 5
Ella's age = 2(x + 5)
Sum of their age = 93
x + 2x + (x + 5) + 2(x + 5) = 93
x + 2x + x + 5 + 2x + 10 = 93
6x + 15 = 93
Subtract 15 from both sides
6x + 15 - 15 = 93 - 15
6x = 78
Divide both sides by 6
x = 78/6
= 13
Therefore,
Dana's age = x = 13 years
Zach's age = 2x
= 2(13)
= 26 years
Jon's age= x + 5
= 13 + 5
= 18 years
Ella's age = 2(x + 5)
= 2(13+5)
= 26+10
= 36 years
Dana's age = 13 years
Zach's age = 26 years
Jon's age= 18 years
Ella's age = 36 years
Sum of their age = 13 + 26 + 18 + 36
= 93 years
HELP!!! how do i solve this 2x^(2)-1=5x
Answers
Answer:
x= 5/4 + or - 1/4(square root of 33)
Step-by-step explanation:
Half of a number decreased by 8 is -3”
Answers
Answer:
2/n - 8 = -3
Step-by-step explanation:
half of a number means half of the letter n so 2/n.
decreased is subtraction
1)
Given 2x - y = 6, solve for y.
A) y = 2x + 6
B) y = 2x - 6
C) y = -2x + 6
D) y = -2x - 6
Answers
Subtract 2x from the left side and the right side. Then you get -y = -2x+6. The divide each side by negative 1. Thus getting you to an answer of y = 2x-6
Answer:
the answer would be C because it's like backwards if you understand what I mean
I’m stuck can someone help please
Answers
Answer:
D. The function has no intercepts.
Step-by-step explanation:
There are vertical and horizontal asymptotes on both the x and y-axis (meaning nothing can touch them), so it is impossible for there to be any intercepts.
A student group at NAU collected information from a local dine in resturant indicating the tip amount left by customers over the course of a two year period. The tip amounts were roughly normally distributed with a mean of $7.84 and a standard deviation of $2.60
Answers
Answer:
The desired range will be "($ 2.64, $ 13.04)".
Step-by-step explanation:
The query given seems to be missing. Kindly check find the entire questions attachment.
The given values are:
Mean
= $ 7.84
Standard deviation
= $ 2.60
Those are established by empirical rule whether 95% including its values cheat throughout two standard deviations of such the mean, for something like a roughly normal distribution results.
Thus, the range of values which might absorb 95% of all sums will be:
= [tex](Mean - 2\times Standard \deviation, Mean + 2\times Standard \ deviation)[/tex]
On putting the estimated values, we get
= [tex](7.84 - 2\times 2.60, 7.84+ 2\times 2.60)[/tex]
= [tex](7.84-5.2, 7.84+5.2)[/tex]
= [tex]($2.64, $ 13.04)[/tex]
8(2x + 7) - 5(3x + 14)
Answers
Answer:
x-14
Step-by-step explanation:
16x + 56 - 15x - 70
x- 14
Answer:
__________________________________
Step 1:
[tex]8(2x + 7) - 5(3x + 14)[/tex]
write equation
________________________________
Step 2:
[tex] = 16x + 56 - 15x - 70[/tex]
open brackets and multiply 8 with (2x+7) and 5 with (3x + 14)
________________________________
Step 3:
[tex] = 16x - 15x - 70 + 56[/tex]
Take similar digits same side to make equation more easy to solve
________________________________
Step 4:
[tex] = x−14[/tex]
subtract 16x with 15x to get→x and subtract -70 and 56 to get -40
________________________________
⚡ Final answer:
x−14✓
What is the value of x? Justify each step. AC = 16
Answers
Answer:
-2
Step-by-step explanation:
2x-6x=8
-4x=8
x=-2
Answer:
x=1
Step-by-step explanation:
AB+BC=AC
2x+6x+8=16
8x+8=16
8x=16-8
8x=8
divide both sides by 8
x=1
1. & 2. In the diagram below, points A, B, and C are collinear. Answer each of the following questions. The figure shown below is not drawn to scale, meaning you cannot determine your answers by using your ruler.
Answers
Answer:
a). AB = 8 in
b). AB = 9.75 in
c). AC = 6.5 in
d). BC = 1.5 in
Step-by-step explanation:
a). Since, AB = AC + CB
Length of AC = 5 in. and CB = 3 in.
Therefore, AB = 5 + 3 = 8 in.
b). Given : AC = 6.25 in and CB = 3.5 in
Therefore, AB = AC + CB = 6.25 + 3.5
AB = 9.75 in.
c). Given: AB = 10.2 in. and BC = 3.7 in.
AB = AC + BC
AC = AB - BC
AC = 10.2 - 3.7
AC = 6.5 in
d). Given: AB = 4.75 in and AC = 3.25 in.
BC = AB - AC
BC = 4.75 - 3.25 = 1.5 in.
Question 2
How do the slopes of the line segments in part a compare with one another? In geometric terms, what can you conclude about the lines?
Answers
Answer:
All the lines have the same slope, m = 0, showing that they are all parallel.
sample answer from PLATO
First decide whether the angles are congruent or supplementary, then solve for x.
(x+72)=65
Answers
Answer:
[tex]\boxed{x = -7}[/tex]
Step-by-step explanation:
[tex](x+72)=65[/tex]
Subtract 72 from both sides.
[tex]x + 72 - 72 = 65 - 72[/tex]
[tex]x = -7[/tex]
Hope this helped you!
1.8+(-2)= i need some help
Answers
-3.8
add 1.8+ -2
hope it helps
a
In a group of 115 people, 55 like tea only ,
48 like coffee only, and each person tikes
at least one of the two drinks.
Now tell me ?
(0) How many people like both the drinks
Answers
Answer:
12
Step-by-step explanation:
55+48=103
So 12 people are left which are the ones who like both drinks
