Answer:
y = -10
Step-by-step explanation:
(-7x+3y) - (-7x +10y) =-65 -(-135)
-7x + 3y + 7x -10y = 70
-7y = 70
y = -10
The equation that results from subtracting - 7x + 3y = - 65 and
- 7x + 10y = - 135 is 7y = - 70.
What are simultaneous equations?We know two simultaneous equations have a unique solution when they intersect at a point,
when they are parallel they have no solution and when they are coinciding they have an infinite no. of solutions.
Given, a system of equations - 7x + 3y = - 65 and - 7x + 10y = - 135.
Subtracting the first equation from the second we get,
- 7x + 10y = - 135
(-) - 7x + 3y = - 65
_________________
Negative sign gets distributed
- 7x + 10y = - 135
+ 7x - 3y = + 65
_________________
7y = - 70
y = - 70/7
y = - 10.
So, the value of x is -7x +10×(-10) = - 135.
- 7x - 100 = - 135.
- 7x = - 135 + 100.
- 7x = - 35.
x = 7.
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The anderson family has many pets.They have 5 dogs,3 cats, and 2 rabbits.The ratio compare the number of rabbits to the number of dogs is _____ to _____
Answer: 2:5
Step-by-step explanation: There are 2 rabbits and 5 dogs.
Choose the appropriate transformation for the figure
Picture above ***
Find the volume of a cone with the radius of 6 height of 8 and length of 10
The volume of the cone with a radius of 6 units, height of 8 units, and length of 10 units is approximately 301.5928 cubic units.
To find the volume of a cone, you can use the formula:
Volume = (1/3) * π * r^2 * h
Where π (pi) is approximately 3.14159, r is the radius of the cone, and h is the height of the cone.
In this case, the radius is given as 6 units, and the height is given as 8 units.
To calculate the volume, substitute these values into the formula:
Volume = (1/3) * 3.14159 * (6 units)^2 * 8 units
Volume = (1/3) * 3.14159 * 36 square units * 8 units
Volume ≈ 301.5928 cubic units
Therefore, the volume of the cone with a radius of 6 units, height of 8 units, and length of 10 units is approximately 301.5928 cubic units.
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-19.86 as A Fraction: How did you do it?
Need Help Please!!
Answer: -993/50 or -19 43/50
Step-by-step explanation:
-19.86 = -19 86/100
-19 86/100 = -19 43/50
or -993/50
Which decimal is less than 0.8 and greater than 0.02?
 A. 0.81
 B. 0.46
 C. 0.86
 D. 0.006
Answer:
the answer would be d
which is 0.006
Need help ASAP Select all numbers that are irrational
Answer:
The 3rd and 4th ones :))
a standard bathtub holds 70 gallons of water on average it takes 7 and 1.5 minutes a bathtub how many gallons go down the drain each minute
Answer:
jrir4hut4hgu8
Step-by-step explanation:
8
Which is the algebraic representation for a rotation 180° clockwise?
A. Y,X
B. -y,x
C. Y,-x
D. -x-y
The required algebraic representation for a rotation 180° clockwise is -x, -y. Option D is correct.
What is the transformation of geometry over the coordinate plane?Transform the shapes on a coordinate plane by rotating, reflecting, or translating them. Felix Klein introduced transformational geometry, a fresh viewpoint on geometry, in the 19th century.
here,
When rotation 180° clockwise takes place then the sign of the coordinate is reversed as if it is positive then it becomes negative and vice versa.
So the algebraic representation for a rotation 180° clockwise of (x, y) is (-x, -y).
Thus, the required algebraic representation for a rotation 180° clockwise is -x, -y. Option D is correct.
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8x - 5y = -6
6x + 2y = -16
Answer:
both x and y are -2 in this case
What is the slope of a line with the equation y = -x + 6?
Brainliest FAST & CORRECT!!!
Answer:
oop
Step-by-step explanation:
Answer:
It is the 4th choice mark me brainliest
Step-by-step explanation:
solve as multi step eqaution 42 = 3(2y - 4)
Simplify X+2/x2+2x-3/x+2/x2-x
Answer:
the correct answer is B :)
Step-by-step explanation:
edge 2020
Answer:
B
Step-by-step explanation:
cause math
sum of angle
measures: 180
find the value of x
then find the angle measures of the polygon
Answer: X = 60 degrees.
60 + 60 + 65 - 5 = 180.
Evaluate the expression.
|23 – 4|
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[tex] |4 - 23| = - (4 - 23) = [/tex]
[tex]23 - 4 = 23 - 3 - 1 = [/tex]
[tex]20 - 1 = 19[/tex]
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I need help on a math assignment.
Answer:
(18 , - 10)
Step-by-step explanation:
5x + 4y = 50 .... (1)
x + 2y = - 2 ... (2)
Solve (2) for "x"
x = - 2y - 2 .... (3)
(3) ----> (1)
5(- 2y - 2) + 4y = 50 ⇔ - 6y - 10 = 50 ⇒ y = - 10 .... (4)
(4) ----> (2)
x + 2(- 10) = - 2 ⇒ x = 18
(18, - 10)
Del has 12 less than 3 times the number of comic books as Patrick. Del has at most 57 comic books. What solution represents the number of comic books, b, Patrick can have?
Answer:
Del has 19 comic book
Step-by-step explanation:
to figure this out we need to take 57 and divide by the 3 given.
57 ÷ 3 = 19
so because we divided 57 by 3 we know the answer is 19
Del has 19 comic books
Please help on the clear top two! Someone please explain what I’m supposed to do step by step.
Answer:
So what you're being asked to do for #4 is graph the line. The y-intercept would be -2, and then a line with a slope of 1/3(rise over run) will go through that y-intercept. For the second one, you need to convert it to y = mx + b form and then do the same thing.
he distance between 314 and −134
Answer:
i am pretty sure its 180
Step-by-step explanation:
mark me brainliest plz so close to next rank
Adding & Subtracting Polynomials need help
Answer:
aisuejejrfjtntn
Step-by-step explanation:
Describe how to evaluate and then evaluate
the following power: 81 3/2
Answer:729
Step-by-step explanation:
81^3/2
(3^4)^3/2
3^6
729
Kelsey has a new baby brother! He weighs 8 lbs 3 oz. The doctor said the baby should gain about 5 ounces per week. At that rate, how much should the baby weigh-in 3 months (12 weeks)?
i dontt get it plse hellp meeee
Answer:
there is nothing here
Step-by-step explanation:
Answer:
-2
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
1/3*(x-10)-(-4)=0
Step by step solution :
STEP
1
:
1
Simplify —
3
Equation at the end of step
1
:
1
(— • (x - 10)) - -4 = 0
3
STEP
2
:
Equation at the end of step 2
(x - 10)
———————— - -4 = 0
3
STEP
3
:
Rewriting the whole as an Equivalent Fraction
3.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 3 as the denominator :
-4 -4 • 3
-4 = —— = ——————
1 3
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
3.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
(x-10) - (-4 • 3) x + 2
————————————————— = —————
3 3
Equation at the end of step
3
:
x + 2
————— = 0
3
STEP
4
:
When a fraction equals zero :
4.1 When a fraction equals zero ...
Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.
Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.
Here's how:
x+2
——— • 3 = 0 • 3
3
Now, on the left hand side, the 3 cancels out the denominator, while, on the right hand side, zero times anything is still zero.
The equation now takes the shape :
x+2 = 0
Solving a Single Variable Equation:
4.2 Solve : x+2 = 0
Subtract 2 from both sides of the equation :
x = -2
One solution was found :
x = -2
Jesus is the son, the spirit, and the Living of God! ...
Answer:
Yessir he's coming soon
Step-by-step explanation:
Complete the like terms to create an equvalent expression:
-4r - 2r + 5
A soccer coach filled a water cooler with 34.07 liters of water before a game. The players drank 29.6 liters during their game. How many liters of water were left in the cooler?
Answer:
4.47 liters
Step-by-step explanation:
To find how many liters were left, subtract the amount they drank from the original amount:
34.07 - 29.6
= 4.47
So, there were 4.47 liters of water left in the cooler.
After players drank 29.6 liters of water from 34.07 liters there is 4.47 liters of water left in the cooler.
What are some alternative names for arithmetic operations?Addition is also known as the sum, subtraction is also known as the difference, multiplication is also known as the product, and division is also known as the factor.
Given, A soccer coach filled a water cooler with 34.07 liters of water before a game.
The players drank 29.6 liters during their game.
∴ Liters of water that is left in the cooler is the difference between water-filled before the game to the water drank by players during their game which is,
= (34.07 - 29.6).
= 4.47 liters are left in the cooler.
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Evaluate: 476.8 - 54.32 + 16.54 - (-12.23)
A) 559.89
B) 410.25
C) 426.79
D) 451.25
NEED HELP ASAP
Identifying values in the domain, probs really easy for you!
Answer:
Not
Not
In domain
Step-by-step explanation:
u cannot square root a negative number as you'll get a complex number, making h(x) undefined
Also I’m not really sure how to find the value of x for this any help would be lovely
Answer:
x = 25
Step-by-step explanation:
The other angle in the triangle would equal 130 because the sum of angles in a triangle add up to 180.
2x + 130 = 180 because it is a linear pair
2x = 50
x = 25
Answer:
x = 25
Step-by-step explanation:
Today Yumaira sold twice as many bags of popcorn at the ball game as she sold last Saturday. In the 2 days she sold a total of 96 bags. Find The number of bags of popcorn sold today and how many popcorn bags were sold on Saturday.
Answer:
32 bags we sold last Saturday, and 64 today.
Step-by-step explanation:
So first, we make a ratio. 2:1, as she sold twice as much. yo could also write it in an equation; 2x+x=96. in both, we see that 3x is equal to 96, and so, x would be equal to 32. to find how many she sold today, multiply that number by 2, to get 64. Hope this helped :)