Answers
Step-by-step explanation:
multiple ways are possible.
but the easiest might be equation arithmetic, because the y terms are so nicely related.
we multiply the second equation (the whole equation) by 3, and then we add both equations fully :
4x - 6y = 13
-15x + 6y = 15
---------------------
-11x + 0 = 28
-11x = 28
x = -28/11
and that we use in any of the two original equations to get y :
-5x + 2y = 5
-5(-28/11) + 2y = 5
140/11 + 2y = 5 = 55/11
2y = -85/11
y = -85/11 / 2/1 = -85/22
let's make the check :
4×-28/11 - 6×-85/22 = 13
-112/11 + 510/22 = 13
-112/11 + 255/11 = 13
143/11 = 13
13 = 13
correct.
Related Questions
Write the equation of a function whose parent function function, f(x) =x+5, is shifter 3 units to the right a. g(x) = x+3 b. g(x) = x+8 c. g(x) = x-8 d. g(x) = x+2
Answers
202³ converted to base 10 is?
Answers
I assume you mean 202₃. Then
202₃ = 2•3² + 0•3¹ + 2•3⁰
202₃ = 2•9 + 0•3 + 2•1
202₃ = 18 + 0 + 2
202₃ = 20
Four employees of Papa Tony's Pizza are cleaning up at the end of a busy night. There is a list of 43 clean-up tasks that need to be completed. If each employee does the same number of tasks, how many tasks should each employee do? Solve. Explain how you interpreted the remainder.
Answers
Answer:
43÷4=10R3
Each employee should do 3 tasks each, with a remainder of 3.
x tends to 0 (sinax-sinbx)/x
Answers
Answer:
1xxx double answer po
Step-by-step explanation:
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Matt have 2 cookies, while christine have 2 more than matt how many cookies will they have if the add them altogethe?.
Answers
Answer:
6 cookies
____________________
Christine has 2 MORE than Matt.
2 + 2 = 4(Christine)
4 + 2 = 6(total)
Matt has 2
Christine has two more than matt
2+2=4
4+2=6
They will have six cookies all together
what number can be divided into 2 without a equal groups without a remainder A 331 B 485 C 588 D 693
Answers
Answer:
c
Step-by-step explanation:
588/2= 294
Think of a number. Double the number. Add 200. Divide the answer by 4. Subtract one-half the original number. What is the value of the result?
Answers
Answer:
50
Step-by-step explanation:
helppppppppppppppppppppppppppppppppppppppppppppppppppppppppppp
Answers
Answer:
2/1 or 20/10
Step-by-step explanation:
the line moves up 2 times every 1 time it moves right.
The image point of A after a translation right 4 units and down 2 units is the point B(4,−5). Determine the coordinates of the pre-image point A.
Answers
Answer:
THE ANSWER
Step-by-step explanation:
Hope it helps❤️
Answer:
(0, -3)
Step-by-step explanation:
Of the students in Bill's grade, 23 students have a pet and the other 10 students do not. What is the ratio of the number of students who do not have a pet to the number of students who have a pet
Answers
Answer:
10:33
Also YB better
Step-by-step explanation:
Answer: there will be 33 kids what is 33 divided by 10
3 r 3
Step-by-step explanation: 33÷ 10 = 30
Identify the similar triangles. Find x and the measures of the indicated sides.
What is the answer? Angle similarity
Answers
Answer:
See belowStep-by-step explanation:
Given:
Angles A and C are equal. This makes triangles similar:
ΔAED ~ ΔCBDRatio of corresponding sides is same:
AE/BC = DE/BD(x + 1)/(x + 5) = 2.4/7.23(x + 1) = x + 53x + 3 = x + 52x = 2x = 1Side measures are:
DE = 1 + 1 = 2BD = 1 + 5 = 6If the scale factor of volumes of 2 similar shapes is 15.625
what will be the scale factors of lengths?
Answers
Answer:
If the scale factor is one, it means that corresponding sides are equal in length. In this case the shapes would be congruent (ie identical) rather than similar. They have the same shape, the same angles and the same size.
Step-by-step explanation:
2 times a number less 4 is 20
Answers
Answer:
68?
Step-by-step explanation:
Answer:
The answer is 8
Step-by-step explanation:
Let the number be x
4x- 12=20 (12 less than 4 times a number is 20)
4x= 20 +12
4x=32
x=8
Hope this helps!!
6.
The graphs of f (x) and g(x) are shown.
Solve for the value of k for which g(x) = f( x + k)
Answers
Answer:
k = - 3
Step-by-step explanation:
Given f(x) then f(x + k) is a horizontal translation of f(x)
• If k > 0 then a shift left of k units
• If k < 0 then a shift right of k units
Here g(x) is the graph of f(x) shifted 3 units right , then
g(x) = f(x - 3) with k = - 3
In 5 days, a scientist wrote 3 pages of a
research paper. At that rate, how many
days will it take the scientist to write a
30-page research paper? (6.1A, 6.1B,
6.1F)
А
18 days
C 25 days
B 30 days
D 50 days
Answers
Answer:
5 days= 3 pages
x day=30 pages
30x 5 /3
150/3
50 days
Step-by-step explanation:
You can just add a zero to the ends
helppppppoopoppppppppp
Answers
Answer:
Conversion of 25m to centimeters: 2500cm
Volume is 2500m^3 (meters cubed)
Step-by-step explanation:
25m x 100cm (that's how many are in a meter) = 2500cm
Volume Formula: length x width x height (or l x w x h)
Length: 50m
Width: 25m
Height: 2m
Therefore, the volume is...
l x w x h
= 50m x 25m x 2m
= 2500m^3
Solve and graph the equation
3x - 3= 0
Answers
Answer:
x=1
Step-by-step explanation:
because I did the math and it's right
Answer:
x = 1
Step-by-step explanation:
solve th variables for x,y,z
Answers
Answer:
X=180-(65+65) =50
Z is 180-65 = 115
y =30
Step-by-step explanation:
Answer:
x = 50° , y = 30° , z = 115°Step-by-step explanation:
Solved in the attachment!! HOPE IT HELPS YOU!!What is the domain of the function on this graph?
Answers
Answer:
[tex] - 6\leqslant x \leqslant 6[/tex]
[-6 6]
Twice the number of x is equal to 25
whats the answer (algebraic)
Answers
2x=25
2x/2. 25/2
X=12.5
Answer:
x = 12.5
Step-by-step explanation:
The phrase "Twice the number of x" = 2x
2x = 25 ⇒ Divide both sides by 2
2x ÷ 2 = 25 ÷ 2
x = 12.5
-Chetan K
Express v in terms of w
Answers
Answer:
[tex]v=\frac{2w}{2w-1}[/tex]
Step-by-step explanation:
[tex]w = \frac{v(1-w)}{v-2}[/tex]
Multiply both sides by (v - 2) to remove the fraction
[tex]w(v-2) = v(1-w)[/tex]
Expand both sides
[tex]vw-2w=v-vw[/tex]
Add 2w to both sides (to make the left side simpler)
[tex]vw = v - vw + 2w[/tex]
Subtract (v - vw) from both sides
[tex]vw - (v - vw)=v-vw+2w-(v-vw)[/tex]
Simplify
[tex]2vw - v=2w[/tex]
Factor 2vw - v
[tex]v(2w-1) = 2w[/tex]
Divide both sides by (2w - 1)
[tex]\frac{v\left(2w-1\right)}{2w-1} = \frac{2w}{2w-1}[/tex]
Simplify
[tex]v=\frac{2w}{2w-1}[/tex]
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ʜᴀᴠᴇ ᴀ ɴɪᴄᴇ ᴅᴀʏ!
g^2 + 4gh ; if g = -3 and h= 5
Answers
- BRAINLIEST answerer
HELP PLEASE!!!!
WILL GIVE BRAINLIEST
ANY LINKS OR WRONG ANSWERS WILL BE REPORTED!!!!
Answers
Answer:
The numerator is 70.
Step-by-step explanation:
70% converts to the fraction of 70/100. Therefore, the numerator is 70.
Hope you have a great day,
Ginny
Answer:
70
Step-by-step explanation:
70% converted to a fraction is 70/100 which is 70
What is the measurement of this angle?
Answers
The angles are verticals so the answer is 82
Regan and Tisha are using roses and carnations to arrange bouquets for the Budtime Flower Expo. Regan plans to use 6 roses and 4 carnations, and Tisha plans to use 5 roses and 3 carnations. Whose bouquet will smell more like roses?
Answers
Answer:
Tisha's bouquet will smell more like roses . Step-by-step explanation:
For a Brainly please help me
A car travels at a rate of 60 miles per hour for 4 hours. Let y be the distance, in miles, the car travels for a given amount of time, x, in hours. What is the domain of the function?
Question 2 options:
0≤y≤4
0≤x≤60
0≤x≤4
0≤y≤60
Answers
Answer:
Step-by-step explanation:
PLEASE I NEED HELP INSTANTLY WILL GIVE BRAINLIEST AND A THANK
Answers
Answer:
Oooo exciting! But please tell me what your question is so I can help you! :D
Answer:
What's your question?
Step-by-step explanation:
can someone help me figure out if the anwser is a or b? photo below :)
Answers
The easiest way to solve this is that in A, it shows 2 solid lines. Since you can see greater than and less than or equal to, there shouldn't be two solid lines, but one solid and two dotted lines.
Help me please. Jejdjfnrttkfkrk
Answers
Answer:
I say the answer is going to be C
Step-by-step explanation:
fraction and percent word problem
From 2012 to 2014, the cost of limes fell by 20%. Farmers increased the cost of limes by 20% from 2012 to 2013. How much did the cost fall from 2013 to 2014, after the farmers were removed?
(A) 20%
(B) 33.3%
(C) 50%
(D) 66.6%
(E) 80%
Answers
Answer:
Step-by-step explanation:
Ruth bought two watermelons. The first watermelon was 21.6 pounds, and the second watermelon was 9.07 pounds. How many pounds of watermelon did Ruth buy?
pounds
