Answers
Answer:
x = 1
y = -2
Step-by-step explanation:
5x - 2y = 9 -----------(I)
2x + 7y = -12 --------------(II)
Multiply (I) by 7 35x - 14y = 63
Multiply (II) by 2 4x + 14y = - 24 {Now add and thus y will be eliminated}
39x = 39
x = 39/39
x = 1
Plugin x = 1 in equation(I)
5*1 - 2y = 9
5 -2y = 9
-2y = 9 -5
-2y = 4
y = 4/-2
y = -2
Related Questions
helpppppppppppp meeeeeeee
Answers
Answer:
A
Step-by-step explanation:
Answer: A is the answer
Step-by-step explanation:
PLEASE HELP ME!!!! 20 POINTS!!!!!!!
What is the correct expanded form and value of 4/5?
A. 4/5+4/5+4/5=12/5
B.4/5•4/5•4/5=64/125
C. 4+4+4+4/5=12/5.
D. 5/4•5/4•5/4=125/64
Answers
The same digits are used for the expressions 3² and 2³. select the symbol that correctly compares the expressions
Answers
The exponent expression 3² is greater than the exponent expression 2³.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
The same digits are used for the expressions 3² and 2³. The value of the exponent expressions is given as,
3² = 9
2³ = 8
The exponent expression 3² is greater than the exponent expression 2³.
More about the Algebra link is given below.
https://brainly.com/question/953809
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Please help ASAP: X-1/2=3/4
Answers
Answer:
x = 5/4 OR 1 1/4
Answer:
x = 5/4 or 1 1/4
Step-by-step explanation:
X-1/2=3/4
Add 1/2 to each side
X-1/2+1/2=3/4+1/2
x = 3/4 +1/2
Get a common denominator
x = 3/4 + 2/4
x = 5/4
x = 1 1/4
What is the solution of this linear equation system? y = 3x-2 y-2 = x
Answers
Answer:
(2,4)
Step-by-step explanation:
Replace all occurrences of y with 3 x − 2 in each equation.
3x - 4 = x
y= 3x -2
Solve for x in the first equation.
x = 2
y = 3x - 2
Replace all occurrences of x with 2 in the equation.
y = 4
x= 2
The solution to the system is the complete set of ordered pairs that are valid solutions.
(2,4)
hope this helps :)
The temperature at noon was -4° C. By midnight, the temperature dropped 8°C
Which expressions represent the temperature at midnight?
Select all that apply
А
-4 + 8
B.
- 8
C 1 - 4 - 8
D
-4 + (-8)
E
-4-(-8)
F
1-4-(-8)
Answers
What is 20 percent of 65
Answers
Answer:
13
Step-by-step explanation:
20/100 multiply by 65
Please help:) I'll report you if you steal points :(
Answers
hope this helped even tho I’m kinda late haha
What is the value of
56÷37?
56÷37?
Answers
Answer:
exact form is 56/37
decimal form is 1.513
mixed number form is 1 19/37
Step-by-step explanation:
Find the constant of proportionality for the table of values,
The constant of proportionality is k=
Answers
Answer:
2.5
Step-by-step explanation:
[tex]y/x\\15/6[/tex]
also known as 15 divided by 6 which equals 2.5 so
2.5 is the constant of proportionality
Instead I’d using the values 1,2,3,4,5,6 on dice, suppose a pair of dice have the following 1,2,2,3,3,4 on one die and 1,3,4,5,6.8 on the other.find the probability of rolling a sum of 12
Answers
Answer:1/24
Step-by-step explanation:
Since the first die has 4 distinct numbers, and second has 6 distinct numbers, so total number of combinations possible = 4 × 6 = 24
Now, the number of chances where we get the rolling sum as 12 is only one. (
Therefore, the probability of getting sum 12 is 1/24
Answer:
1/36
Step-by-step explanation:
For the acellus people
The Rodriguez
family is on a
vacation. They
started with $1,875.
They have spent
$140 each day and
have $895 left for the
rest of their vacation.
Write and solve an
equation to find how
many days have they
been on their
vacation already?
Answers
What is the scale factor of ABC to AXYZ?
B
35°
36
27
48"
48°
96"
96
A
21
C
0
A. 2
ов.
c. Ž
O O
D. 3
SUBMIT
Answers
The value of scale factor of triangles ABC to XYZ would be,
⇒ 3
What is mean by Triangle?A triangle is a three sided polygon, which has three vertices and three angles which has the sum 180 degrees.
We have to given that;
To find scale factor of triangles ABC to XYZ.
Now, We can formulate;
scale factor of triangles ABC to XYZ is,
= AB / XY
= 27 / 9
= 3
Thus, The value of scale factor of triangles ABC to XYZ would be,
⇒ 3
Learn more about the triangle visit;
brainly.com/question/1058720
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15% of an amount is 30?
Answers
Answer:
200
Step-by-step explanation:
15% × ? = 30
? =
30 ÷ 15% =
30 ÷ (15 ÷ 100) =
(100 × 30) ÷ 15 =
3,000 ÷ 15 =
200
0,15*? = 30
? = 30/0,15
? = 200
The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 4 to 3. If there were 5663 total votes, how many yes votes were there
Answers
Answer:
3236
Step-by-step explanation:
4+3=7
7u-> 5663
1u->809
4u->3236
Write the missing decimal so that each pair adds to 1/2 + ...= 1
Answers
Answer:
0.5
Step-by-step explanation:
1/2 + 0.5 = 1
The measures of the angles of a triangle are shown in the figure below. Solve for x.
Answers
Answer: 27°
Step-by-step explanation: Here, we're asked to find the missing angle measure in the triangle shown which is represented by the variable x.
To find the value of x, remember that the sum of the
measures of the angles in a triangle is 180°
So we can setup the equation 63 + 90 + x = 180.
Remember that a box indicates a 90° angle.
Now to solve for x, let's first simplify on the left side of the equation.
63 + 90 is 153 so we have 153 + x = 180.
Now to get x by itself, we subtract 153 from both sides of the equation.
On the left side of the equation, 153 - 153 cancels out and we have x
and on the right side of the equation, 180 - 153 is 27.
This means that the missing angle in the triangle is 27°.
What is the solution to the inequality x2 < 16 – 6x?
Answers
Answer:
−8 < x < 2 would be the answer if the equation was x^2
if the equation was x(2), the answer is x<2
Step-by-step explanation:
Answer:
x < –8 or x > 2.
Step-by-step explanation:
The solution to the inequality x^2 < 16 - 6x is x < -8 or 2 < x.
64 = 5h
= h
what's the value of h?
Answers
Answer:
H = 64/5
Eplanation:
64=5h
5h=64
64/5
H
pls help!!!!!!!!!
What is one way a sitcom will get an audience to feel a particular emotion?
by using a laugh track
by using different characters
by using different theme songs
by using one-liners
Answers
Answer: One way is by putting on background music. Heroic music makes the audience feel exited.
Step-by-step explanation:
Answer:
a laughing track
Step-by-step explanation:
sitcoms are shows like friends, where when something is funny, it plays laughing in the background, essentially telling everyone to laugh becasue something funny just happened
A store is selling scooter for $40. You have a coupon and person for $15. What percent was the coupon? 20 points!!
Answers
Answer:
$15 is 37.5% of $40.
Step-by-step explanation:
) A computer program found that the line LaTeX: c=2t-89c = 2 t − 89 is a good fit for the data. Use this equation to predict how many cups of lemonade Lin might sell on a day when the high temperature is 74 degrees. We predict she will sell 40 cups of lemonade.
Answers
Answer:
Number of cups of lemonade = 59 cups
Step-by-step explanation:
Given the linear function :
C = 2t - 89
At temperature of 74° ;
The cups of lemonade as calculated using the linear model:
C = 2t - 89 ; where c = cost of lemonade ; t = temperature.
C = 2(74) - 89
C = 148 - 89
C = 59
A function assigns the values. The prediction that she will sell 40 cups of lemonade that day is wrong.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
As it is given that function, c=2t-89, where the number of cups of lemonade is represented by c, and t represents the temperature of the day.
Now, as it is given that the temperature at the day is 74, therefore, the number of cups that will be sold that day can be predicted as,
[tex]c = 2t-89\\\\c = 2(74)-89\\\\c = 148-89\\\\c = 59[/tex]
Hence, the prediction that she will sell 40 cups of lemonade that day is wrong.
Learn more about Function:
https://brainly.com/question/5245372
8 2/3 ÷ 5 7/9 is equal to what?
Answers
Answer:
it equals to 8 1/3
Step-by-step explanation:
Help I need the answer in 5 minutes!!
Answers
Answer:
the answer is B
Step-by-step explanation:
Needing some help please
Answers
Answer: Should be (4,0)
Step-by-step explanation:
Describe the transformation below. Use words like translated, reflected, rotated, or dilated with a description.
Answers
Answer:
translated
Step-by-step explanation:
the shape slides to a new position, but nothing is changed size wise.
Could someone help me with this question?
Answers
Answer:
Step-by-step explanation:
9x -1 = 80
A -10
B 9
C 10
D -9
Answers
Answer:
The answer is B!
Step-by-step explanation:
Add 1 to both sides, then divide 80 by 9!
I need help.
If you don't know please don't answer a guess or a silly answer.
If you know for sure please put the answer below and you will get 20 points.
Thank you!
Answers
Answer:
20.5
Step-by-step explanation:
2.50+7.50+.30(35)
Find the 10th term of the geometric sequence 3, 6, 12,
Answers
Step-by-step explanation:
to calculate common ratio
=second term divided by first term