Answers
Answer:
The system of this equation is ( -1, 10) which is Option A.
Step-by-step explanation:
Solve for y in the first equation.
[tex]y = - 5x + 5 \\ - 2y = - x - 21[/tex]
Replace all occurrences of yy with -5x+5 in each equation.
[tex]10x - 10 = - x - 21 \\ y = - 5x + 5[/tex]
Solve for x in the first equation.
[tex]x = - 1 \\ y = - 5x + 5[/tex]
Replace all occurrences of x with -1 in each equation.
[tex]y = 10 \\ x = - 1[/tex]
The solution to the system is the complete set of ordered pairs that are valid solutions.
(−1, 10)
Hence, the system of this equation is (-1, 10).
Option A.
Related Questions
jemimah went to the market and bought 500g of meat 850g of fish and 900g of eggs. What is the total weight of the items she bought in a kilograms.
Answers
Answer:
2.25kg
Step-by-step explanation:
500g+850g+900g=2250
2250/1000=2.25kg
What is the value of x? i will give brainliest please help
Answers
Answer:
I completely forgot how to do this I'm sorry
Step-by-step explanation:
Help help help help help
Answers
Answer:
6 ft
Step-by-step explanation:
The triangle CDE is half of the size of triangle ABC, so if you match up the corresponding sides, DE is half of AC. AC is 12 so DE is 6.
hope is helped!
You will get 40 points if you help me and Brainliest!
Answers
Answer:
The answer is c It is hard to explain so sorry
Answer:
C
Step-by-step explanation:
The bus spans from 10 to 20 the absolute value of that is 10 the teachers span from 15 to 30 the absolute value of that is 15 making the teachers 5 miles more than the buses.
def:This is what we call the money you get back when you pay for something.
term:
Answers
Answer:
Change
Step-by-step explanation:
I call what I get back in return, change. The money we get back if you pay extra for something you buy.
Hope this helps!
Solve for the value of a
Answers
Answer:
a=7
Step-by-step explanation:
These two angles are complementary and the sum of their measures is 90°.
Therefore, we can create the equation: (5a+3)+52=90.
1. combine like terms. the equation becomes 5a+55=90.
2. -55 to both sides of the equation. the equation becomes 5a=35.
3. /5 to both sides of the equation. we can reach the conclusion that a=7
PLEASE HELP! What is the ratio of the volumes of two spheres, if the ratio of their radii is 13: 9
Answers
Answer:
[tex] V_1 : V_2= 2197 : 729[/tex]
Step-by-step explanation:
Let the volumes of both the spheres be [tex] V_1, \:V_2[/tex] and their radii be [tex] r_1, \:r_2[/tex] respectively.
[tex] \huge r_1 : r_2= 13 : 9[/tex] (given)
[tex] \implies\huge \frac{r_1}{r_2}= \frac{13}{9}.....(1)[/tex]
[tex] \huge \frac{V_1}{V_2}=\frac{\cancel {\frac{4}{3} \pi} r_1^3}{\cancel {\frac{4}{3} \pi} r_2^3}[/tex]
[tex] \huge \frac{V_1}{V_2}=\frac{ r_1^3}{r_2^3}[/tex]
[tex]\huge \frac{V_1}{V_2}=\bigg(\frac{ r_1}{r_2}\bigg) ^3..... (2)[/tex]
From equations (1) & (2), we have:
[tex]\huge \frac{V_1}{V_2}=\bigg(\frac{13}{9}\bigg) ^3[/tex]
[tex] \huge \frac{V_1}{V_2}=\frac{2197}{729}[/tex]
[tex] \huge \therefore V_1 : V_2= 2197 : 729[/tex]
Thus, the ratio of the volumes of two spheres would be 2197 : 729.
Answer:
2197:729
hope it helps
please mark brainliest
the points (-9,f) and (-10,5) has a slope of 3. What is the value of f?
Answers
(5-f)/(-10-(-9)) = 3
(5-f)/(-1) = 3
5 - f = -3
-f = -8, f = 8
Solution: f = 8
Ops gets $140 per day and laborers get $100 per day. If 35 people were hired and payroll was $4820, how many ops were employed and how many laborers?
Answers
Answer:
2 laborers and 33 ops
Step-by-step explanation:
Given
Let:
L = Laborers
P = Ops
From the statements, we have:
[tex]L + P = 35[/tex] -- total people hired; and
[tex]140P + 100L = 4820[/tex] ---number of hirees
Required
Solve for L and P
Make L the subject in: [tex]L + P = 35[/tex]
[tex]L = 35 - P[/tex]
Substitute [tex]L = 35 - P[/tex] in [tex]140P + 100L = 4820[/tex]
[tex]140P + 100(35 - P) = 4820[/tex]
[tex]140P + 3500 - 100P = 4820[/tex]
Collect like terms
[tex]140P - 100P = 4820 - 3500[/tex]
[tex]40P = 1320[/tex]
Solve for P
[tex]P = 1320/40[/tex]
[tex]P = 33[/tex]
Substitute [tex]P = 33[/tex] in [tex]L = 35 - P[/tex]
[tex]L = 35 - 33[/tex]
[tex]L = 2[/tex]
A right triangle is shown
Enter the value of x.
Answers
Answer:
10
Step-by-step explanation:
Using $A^2 + B^2 = C^2$, we know that $A = 6$ and $B = 8$. $8^2 = 64$ and $6^2 = 36$. $64 + 36 = 100$, and $√100 = 10$.
Answer:
Step-by-step explanation:
use the pythagorean theorem.
a^2+b^2=c^2
6^2+8^2=c^2
36+64=100
√100=10
***IMPORTANT. don't forget to square root the answer you get from a^2+b^2. you are putting the answer in squared form which isn't going to be correct, so don't forget to root it before you enter.
please help ASAP!!!!!!!
Answers
Answer: the length of the base is 50 cm
Step-by-step explanation:
Cynthia bought a shirt for $35 that was originally $55. What was the percent change in the price of the shirt? Round to the nearest hundredths place.
NO LINKS OR I WILL REPORT YOU
Answers
Answer:36.36%
Step-by-step explanation:
%change=100 X (final-inital value) divided by initial
Can anyone please help asap I keep getting those links bots
Answers
Which one is true
1
2
3
4
Answers
What is the surface area 3yd 3yd 3yd
Answers
Answer:
12
Step-by-step explanation:
your welcome :)
25 points. Get it before the mod sees it!
gogogogo lol
Answers
Answer:
yy
Step-by-step explanation:
bi
Write a [tex]y=\frac{4}{5}x-2[/tex] in standard form using integers.
Answers
Answer:
4x-5y=10
Step-by-step explanation:
please answer and explain and i’ll give brainliest
Answers
Step-by-step explanation:
I really want to help you but there's no question.
Graph on a coordinate plane P(-3,-5)
Answers
Answer:
Answer is in the image below
Answer:
P is simply the mark or letter that the point will be called. In this case we have -3,-5. You will move left 3 spaces from the origin and down 5 places from the spot you marked -3. After that will be point P
The graph of f(x) = x3 + x2 - 9x - 9 is shown.
Based on the graph, what are the solutions of x3 + x2 -
9x-9 = 0?
15
12
O x= -1,3
O x = -3, -1
O x= -3,-1,3
O x= -9, -3, -1,3
9
6
3
-5
4
-2
1
2.
4
X
3
-9
- 12
-15
Save and Exit
Next
Submit
Mark this and return
Answers
Answer:
-1, 3, -3
Step-by-step explanation:
I don't see the graph, but you can solve by factoring:
[tex]x^3+x^2-9x-9=0\\x^2(x+1)-9(x+1)=0\\(x+1)(x^2-9)=0\\(x+1)(x+3)(x-3)=0[/tex]
By the factor theorem, the solutions of f(x) are -1, 3, and -3.
The requried solutions of x³ + x² - 9x - 9 = 0 is x = -3, -1, 3. Option C is correct.
What is simplification?Simplification involves applying rules of arithmetic and algebra to remove unnecessary terms, factors, or operations from an expression.
Here,
To find the solutions of equation x³ + x² - 9x - 9 = 0, we need to find the x-intercepts of the graph of the function f(x) = x³ + x² - 9x - 9.
From the graph, we can see that the function intersects the x-axis at three points, which are approximately -3, -1, and 3. Therefore, the solutions of the equation are x = -3, x = -1, and x = 3.
Thus, the correct answer is x = -3, -1, 3.
Options A, B, and D are incorrect because they either do not include all three solutions or include additional solutions that are not present in the graph of the function.
Learn more about simplification here:
https://brainly.com/question/12501526
#SPJ7
An after school music program has 15 out 50 students practicing. Write 15/50 (15 over 50) as a decimal and as a percent.
Decimal -
Percent -
Answers
Now you can easily see decimal and percent form
Decimal: 0.30
Percent: 30 percent
Answer:
Percent- 30
decimal-0.3
Step-by-step explanation:
Hope this helps and have a wonderful day!!!
(50 POINTS) Express each sum using summation notation.
14. 3 + 3^2/2 + 3^3/3 ... + 3^n/n
15. 1 + 3 + 5 + 7 +... [2(12) - 1]
Answers
14: a
1
=
39
/2 0.25 313% 16%
15: 54
Please help me, it's due today. I'll give 86 points to someone who answers and writes the problem step by step.
A 14 -in. diameter pizza is cut into 6 equal sides. About how many square inches of pizza are on each slice? Round to the nearest square inch.
Answers
Answer:
here go the answer hope it help
Step-by-step explanation:
What does it mean if your inference is valid
Answers
In logic, an inference is a process of deriving logical conclusions from premises known or assumed to be true. The term derives from the Latin term, which means "bring in." An inference is said to be valid if it's based upon sound evidence and the conclusion follows logically from the premises.
hope this helped <3
help pleaseeeeee ♀️
Answers
Answer:
9
my bad I realized mistake
Answer:
perimeter of square =4×side
36 inches =4×side
36 inches/4 =side
9 inches =side
PLEASE HELP FAST NEED IT FAST =)
Which pair of triangles demonstrates congruence with the AAS Postulate?
Answers
Answer:
B
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
brainliest?
If x and y are two rational numbers such that x < y , then ______ is a rational number in between x and y.
Answers
Answer:
[tex]\dfrac{x+y}{2}[/tex]
Step-by-step explanation:
Let first number be x and another number is y.
A rational number is a fraction that can be expressed in the form of x/y.
A rational number between x and y is given by :
[tex]R=\dfrac{x+y}{2}[/tex]
So,
If x and y are two rational numbers such that x < y , then [tex]\dfrac{x+y}{2}[/tex] is a rational number in between x and y.
Help me please....... :(
Answers
Answer:
The Degree of the polynomial is 3
1.in an electrical circuit the current,I amperes, is directly proportional to the square root of the power,p watts.
I=4 when p=100
A) find an equation connecting I and P.
B) calculate I when P= 144
Answers
Answer:
A for ever I P=25
b. 5.76
Step-by-step explanation:
18+2 =20
Because 18 is 2 numbers away from 20
Answers
Answer:
Yes, that is correct.
Step-by-step explanation: