What is the solution of this system of equations?
x + 3y = 7
3x + 2y = 0
Answers
Answer:
X=-2, y=3
Step-by-step explanation:
Related Questions
If y varies directly as x and x=6 when y = 3 what will y be when x = 10
Answers
Answer:
y = 5
Step-by-step explanation:
5). Find the surface area.
3.6 yd
7 yd
3 yd
2 yd
Answers
The price of the stereo was $96 the tax rate was 6% what was the tax
Answers
Answer:
101.76
Step-by-step explanation:
I need some help with this
Answers
2nd blank: 4x
3rd blank: 8
4th blank: 16
5th blank: 4
Arvida scored 40 points in the first game against Ammons Middle. During the second game Arvida scored 56 points. By what percent did the points scored change
Answers
Answer:
40%
hope this helped :)
Which number line shows the solution to the inequality -4x + 3 < -5
Answers
Answer:x>2
Step-by-step explanation:
4x/4>8/4
24.. A toy company makes 40 plastic harmonicas in 30 minutes. At this
rate how long will it take to make 200 harmonicas?
Proportions
Answers
Answer:
It will take 2 and a half hours
Step-by-step explanation:
Well 40 can go into 200 5 times so you would do 5 times 30 minutes which would be 150 minutes and then you would divide it by 60 to simplify which would be 2 hours and 30 minutes. So it will take 2 and a half hours to make 200 harmonicas.
200/40 = 5
5 * 30 = 150
150/60 = 2 hours and 30 minutes
Answer:
6.7 minutes
Step-by-step explanation:
From what we know, we will have to divide. The things we are dividing are the 30 minutes it took to make the 40 plastic harmonicas and the total we need of harmonicas, which is 200. By dividing 200 by 30, we get 6.666666666666667. But, we can't have that long answer, so we need to round up. Which is when we get our quotient of 6.7 minutes. If I'm wrong, please, don't be afraid to correct me. And have a good day stranger!
Edit: This answer is wrong. I was corrected and now I know what the answer is. Please do avoid this answer. But have a good day to anyone sees this!
10. Maddy has saved $55 from birthday money. She is earning $25 per week for babysitting her neighbors, which
she also saves. Which function can be used to nd a, the amount of money Maddy will have saved at the end of w
weeks of babysitting?
A. a =55w +25 B. a = 25w + 55 C. a = 55w + 80 D. a = 80w +55
Answers
Answer:
B
Step-by-step explanation:
because 25w is 25 dollars per week and you have to add the 55 dollars she earned which equals the total of money she will have.
sorry I'm not great at explaining lol
please please i need help i will mark u brill
Answers
Answer:
Step-by-step explanation:
65 ÷ b + 8 x 4 = 20
Putting value of b = 5 in the equation
65 ÷ 5 + 8 x 4 = 20
13 + 8 x 4 = 20
13 + 32 = 20
45 = 20
Bringing like terms on one side
45 - 20 = 25
Answer:
25
Step-by-step explanation:
Replace b for 45 in the equation
65/5+8x4=
According to the rules of PEMDAS (parentheses, exponents, multiplication, division (done in order they are given) addition and subtraction) You have to solve 65/5 first and then 8x4
13+8x4=
13+32-20=25
An angle measured 140 more than the measure of its supplementary angle. What is the measure of each angle ?
Answers
Answer:
Supplementary angle equals 180°
Complementary angle equals 360°
Step-by-step explanation:
Conjugate angles are more or less related to complementary and supplementary angles. The sum of the two angles put together equals 360 degrees. The last angle that will be named is straight. The measure of the angle equals 180 degrees.
y divided by the product of 3 and x
Answers
Answer: y/3x
Step-by-step explanation: 3 times x is 3x, so y/3x
At Captain's Video Emporium, video club members can play PS5 games for $5 per night. The club also charges a $25.00 membership fee. Slope = __5 per night___________ Y-intercept = _____________ Equation _____________
Answers
Answer:
It's $499, unless you don't care about having a disc drive, then it's $399. That simplicity was by design, said Sony ...
Pls help ill give brainliest
Answers
Solve the following system of equations: (2 points) −2x + y = 1 −4x + y = −1
Answers
Answer:
(x,y)=(1/2,0)
Step-by-step explanation:
rewrite the expression
-2x+y=-1
1-4x+y=-1
Sean earns $8.50 per hour and made a total of $80.75 today. How many hours did he work?
Answers
Answer: 9.5 hours
In order to solve this, you must divide his total (80.75) by his hourly wage (8.50) When you do that, you get 9.5, so he worked 9.5 hours
Step-by-step explanation:
Label each fifth on the number line. )
2.
3
4
2.
1
2
3
4
3
4
5
5
5
5
5
5
5
5
5
5
5
1
2
3
4
5
6
7
8.
0
Enter
Answers
Step-by-step explanation:
1 for 0/5
2 for 1/5
4 for 2\5
4 for 3\5
4 for 4\5
12 for 5\5
1 for 6\5
1 for 7\5
1 for 8\5
The point at which two sides of a polygon meet is called a(n).
OA) segment
OB) face
OC) edge
OD) vertex
Answers
Answer:
its called a vertex
Step-by-step explanation:
The line segments that form a polygon are called the sides of a polygon.
A point where two sides meet is a vertex.( in plural form is vertices)
Write the quadratic equation in sandard form and then choose the value of "b."
(2x-1)(x+5)=0
Answers
= 2x^2 -x+10x -5
= 2x^2 +9x -5
And the b value would be 9 since
Ax^2 +bx + c
Find the 59th term of the arithmetic sequence 26, 17, 8, ...
Answers
26 - 522 = -496
Answer:
-496
Step-by-step explanation:
it's right :)
The table shows the results of a class survey about pets. Suppose 53 students were surveyed. About how many students have one pet? Justify your answer. (I really need an answer now! Please answer as soon as you can )
Answers
|X+1|+|x-2|=3. Can you please help me?
Answers
Answer:
I can answer if you make me brainliest
List all of the factors of 64. (Type the factors in numeric order from smallest to largest. Separate each factor with a comma and a
space after the comma.)
The solution is
I
Submit
Pass
Save and close
Don't know answer
ne web and Windows
Answers
Answer:
{1,2,4,8,16,32,64}
Step-by-step explanation:
1×64=64
2×32=64
4×16=64
Find the volume of the following figure using unit cubes.
Answers
Answer:
Volume : 94
Step-by-step explanation:
2(4 x 5) = 40
2(3 x 5) = 30
2(3 x 4) = 24
------------------
40 + 30 + 24 = 94
Plz I need to know this
Answers
Answer:
triangular prism
Step-by-step explanation:
Which point is located in Quadrant I? A) (0, -5) B) (0, 0) C) (0, 5) D) (5, 1)
help please hhhhhhhhhhhhhhhhhhhhhheeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllllllllllllllllppppppppppppppppppppppppppppp
Answers
Answer:
uhm please show a graph
Step-by-step explanation:
could you show the graph?
A company that manufactures electronic components wants to know the mean discharge time of one particular type of capacitor that it makes. In order to estimate this value, they randomly select 100 capacitors and measure how long they take to discharge. The mean of this sample was 7.25 seconds with a standard deviation of 0.15 seconds. Assuming that this distribution is normal, construct a 99% confidence interval to estimate the mean discharge time for all capacitors of this type. Is this question asking for a confidence interval or hypothesis test
Answers
Answer:
99% confidence interval to estimate the mean discharge time for all capacitors of this type
(7.2146, 7.2854)
Step-by-step explanation:
Step(i):-
Given that the sample size 'n' = 100
Given that the mean of sample x⁻ = 7.25 seconds
Given that the standard deviation of the sample (S) = 0.15 seconds
Level of significance = 0.01
Degrees of freedom = n-1 =100-1 =99
t₀.₀₁ , ₉₉ = 2.3646
We have to find that the 99% of the confidence interval of the mean
Step(ii):-
99% confidence interval to estimate the mean discharge time for all capacitors
[tex](x^{-} - t_{0.01 , 99} \frac{S}{\sqrt{n} } , x^{-} + t_{0.01 , 99} \frac{S}{\sqrt{n} } )[/tex]
[tex](7.25 - 2.3646 \frac{0.15}{\sqrt{100} } , 7.25 + 2.3646 \frac{0.15}{\sqrt{100} } )[/tex]
(7.25 - 0.0354 , 7.25 + 0.0354)
(7.2146, 7.2854)
Final answer:-
99% confidence interval to estimate the mean discharge time for all capacitors of this type
(7.2146, 7.2854)
I need help if right I will mark you
Answers
Answer:
B
Step-by-step explanation:
Please help me I'm so bad at math and doing AFDA really doesn't help..
substitution of a,b,c in this equation
Answers
Answer:
2, 1 and -3
Step-by-step explanation:
Given the quadratic expression
x^2+2x = 3
Write in standard format
x^2+2x-3 = 0
Get the value of a, b and c
The standard form is ax^2+bx+c = 0
ax^2 = x^2
a = 1
bx = 2x
b = 2
c = -3
Substitute into the general formula
x = -b±√b²-4ac/2a
x = -2±√(2)² - 4(1)(-3)/2(1)
The correct values are the values in bold format
What is the probability of choosing a king of hearts or a queen of spades from a deck of cards? Type your answer as a fraction.
Answers
Answer:
Step-by-step explanation:
1 /13
Answer:
1/13???
Step-by-step explanation:
Pls Help and put a proper answer!
You want to buy a digital camera that costs $234. You have saved $50 so far. You earn $6.50 per hour at your summer job. Write and solve an inequality that represents the number of WHOLE hours you need to work in order to buy the digital camera.
Answers
C=#of hrs (>_ is the greater than equal to symbol btw)
6.5x+50>_234
-50. -50
6.5x/6.5>_184/6.5
x>_ 24 hrs
Answer:
H = (234 - 50)/6.50
H = 29 hours
Step-by-step explanation:
H = hours to work
H = (234 - 50)/6.50
H = 28.31 hours