Answers
Answer:
x=4 and y=3
Step-by-step explanation:
Ah Algebra...
2x-3y=-1
y=x-1
Let's solve your system by substitution.
2x−3y=−1; y=x−1
Rewrite equations:
y=x−1;2x−3y=−1
Step: Solve
y= x−1
Step: Substitute x−1 for y in 2x−3y=−1:
2x−3y=−1
2x−3(x−1)=−1
−x+3=−1(Simplify both sides of the equation)
−x+3+−3=−1+−3(Add -3 to both sides)
−x=−4−x−1=−4−1
(Divide both sides by -1)
x=4
Step: Substitute4forxiny=x−1:
y=x−1
y=4−1
y=3(Simplify both sides of the equation)
Answer:
x=4 and y=3
Hope this helps :)
Stay Cold,
Brook
Answer:
(4,3)
Step-by-step explanation:
Being that the y variable is isolated in the second equation, the other side of that equation can be substituted for y in the first equation.
[tex]2x - 3(x - 1) = - 1[/tex]
Now simplify for x.
[tex]2x - 3x + 3 = - 1 \\ - x = - 4 \\ x = 4[/tex]
Now with that, insert the x value in for x in the second equation.
[tex]y = (4) - 1 \\ y = 3[/tex]
Now the correct answer is (4,3)
Related Questions
what does 96*96 equal??
Answers
Find the volume of the figure below. Leave your answer in terms of π.
Answers
Answer: 1539π cubic inches.
Step-by-step explanation:
In the figure, we have a hemisphere joined with a cylinder of the same diameter 18 inches.
Radius = 9 inches (half of diamter)
Volume of hemisphere = [tex]\dfrac23 \pi r^3[/tex]
Volume of cylinder = [tex]\pi r^2 h[/tex], where r= radius h= height
Volume of hemisphere= [tex]\dfrac{2}{3}\pi (9)^3=486\pi in.^3[/tex]
Volume of cylinder = [tex]\pi (9)^2 (13)=1053\pi\ in.^3[/tex]
Combined volume = 486π+1053π=1539π cubic inches.
Hence, the volume of the solid = 1539π cubic inches.
it's all on the picture please answer
Answers
Answer:
[tex]\boxed {\boxed {\sf 32+8k}}[/tex]
Step-by-step explanation:
We are given the expression:
[tex]8(4+k)[/tex]
To solve, distribute the 8. Multiply each term inside the parentheses by 8.
[tex](8*4)+ (8*k) \\ (32)+(8k) \\32+8k[/tex]
The expression is equal to 32+8k
Find the slope of the line with x intercept 9 and y intercept of -2
Answers
Answer:
2/9
Step-by-step explanation:
Find the slope of the line with x intercept 9 and y intercept of -2
Given that the equation of the line is y = mx+b
x intercept occurs when y = 0
The coordinate of x intercept is (9,0)
y intercept occurs at x = 0
The coordinate of y intercept is (0, -2)
Slope m = y2-y1/x2-x1
m = -2-0/0-9
m = -2/-9
m = 2/9
Hence the required slope is 2/9
alexander is counting his money from his piggy bank. he stacks four quarters per pile. there are 21 piles of quarters.
how many quarters does he have?
Answers
Answer:
He has 84 quaters
Step-by-step explanation:
all you really have to do is multiply 4 times the number of stacks and you get 84
HELP, thanks, If a triangle has a side length of 8 inches, and another side length of 5 inches, which of the
following choices for the third side length will make a triangle?
a. 7 inches
b. 2 inches
c. 13 inches
d. 15 inches
Answers
Answer:
a. 7
Step-by-step explanation:
So a triangle a two sides that will always sum up to be greater than the third side.
Meaning:
a + b > c
a + c > b
b + c > a
So here, we're given a and b:
8 + 5 > c
8 + c > 5
5 + c > 8
Plug in the values:
13 > 7
15 > 5
12 > 8
These are all true, so it's probably 7.
13 > 2
10 > 5
7 > 8 This one is not true, so not 2.
13 > 13 This is not true, so not 13.
If not 13, we can't go any higher and so it can't be 15.
21 = -3c + 7 -5c -2
i need help with this multi step equation question
Answers
Answer:
c=-2
Step-by-step explanation:
Subtract 4 from 9 then subtract 5 from the result written expression for the sequence of operations described below
Answers
Answer:
( 9 - 4 ) - 5
Step-by-step explanation:
According to the scenario, expressions can be written as follows,
Subtract is denoted by (-) sign.
So, First sequence of operation,
= For subtract 4 from 9 can be written as ( 9 - 4)
= Second sequence of operation,
Now, subtract 5 from result can be written as ( 9 - 4) - 5
Hence, the final written expression will be ( 9 - 4) - 5.
Please help me thank you!
The function ƒ(x) = 2x − 2 indicates:
a shift to the right of 1 unit.
a shift to the left of 2 units.
a shift to the right of 2 units.
None of these choices are correct.
Answers
Answer:
None of the choices are correct
Step-by-step explanation:
This is because it should be going down if it was subtracting but no answer says that so
questions 13 & 14 FAST PLS ITS A TEST! WILL GIVE BRAINLIEST!
Answers
14: answer is x= 1/3, x= 2
solve for x.
hint: use your knowledge of parallel lines. what do you know about these angles? are they congruent or supplementary?
Answers
Answer:
x = 11
Step-by-step explanation:
The given angles are supplementary which means their sum is 180
8x - 6 + 98 = 180 add like terms
8x + 92 = 180 subtract 92 from both sides
8x = 88 divide both sides by 8
x = 11
Use the image to solve
Answers
140 degree
can SOMEBODY HELP ME WITH THIS LESSON I NEED HELP ASAP !!
Answers
Answer:
what's your question? I'm here to help if I can.
21) Which expression is equivalent to 6(7x − 4)? A) 13x − 10 B) 13x − 24 C) 42x − 10 D) 42x − 24
Answers
Answer:
Answer is D) 42x − 24
Step-by-step explanation:
Opening the expression given in question
6(7x − 4)
6 will be multiplied by both items present inside parenthesis.
it can be written as
={(6 * 7x) - (6*4)}
=42x-24
Hope that clears the question.
A bottel holds z ounces of water a second bottel holds 16 onces witch is 8/5 times as much warter how much does the frist bottel hold
Answers
Answer:
The first bottle holds 10 ounces of water.
Step-by-step explanation:
The bottle holds z ounces.
The second bottle holds 16 ounces, which is 8/5 times the first, which is z.
How much water does the first bottle holds?
[tex]\frac{8z}{5} = 16[/tex]
[tex]8z = 16*5[/tex]
[tex]8z = 80[/tex]
[tex]z = \frac{80}{8}[/tex]
[tex]z = 10[/tex]
The first bottle holds 10 ounces of water.
The number 64 is a perfect_____.
A. square
B. cube
C. square and cube
Answers
Answer:
square and cube
square- 8
cube- 4
Answer:
C) square and cube
Step-by-step explanation:
Square: 4×4×4×4=64
Cube: 8×8=64
Can I please have Brainliest?
Can someone help me with this. Will Mark brainliest.
Answers
Answer:
False
Step-by-step explanation:
because all four sides of a rectangle don't have to be equal. However, the sets of rectangles and rhombuses do intersect, and their intersection is the set of squares—all squares are both a rectangle and a rhombus.
:))
IL GIVE BRAINLY IF YOU CAN HELP ME ON THESE 2
Answers
Answer:
THE answers to both questions are A
Step-by-step explanation:
Answer:
a for both
Step-by-step explanation:
just move point c on the graph where it tells u to. a translation only affects location
Iplease need help will mark brainliest
Answers
Answer:
6. xint=-7
yint=-3
7. xint=-7
yint=-5
Step-by-step explanation:
Answer:
6. (-7,-3)
7. (-7,-6)
Them are the coordinates
The probability of randomly selecting two oranges from a bowl of 5 oranges and 4 tangerines if the first selection is replaced
Answers
Answer:
25/81
Step-by-step explanation:
The probability of randomly selecting two oranges = (number of oranges in the bowl / total number of fruits in the bowl) x (number of oranges in the bowl / total number of fruits in the bowl)
total number of fruits in the bowl = 5 + 4 = 9
5/9 x 5/9 = 25/81
The Tober family built a square deck with an area of 75 m'. The length of one
side is between which two whole numbers
Answers
Answer:
Between 8 and 9
Step-by-step explanation:
The square root of 75 is about 8.6
Therefore the answer is between the number 8 and 9.
3/10 = N/10
Find the missing value to write an equivalent fraction.
Multiply the numerator and denominator by
.
The missing numerator is
.
Answers
Answer:
3 = N
Step-by-step explanation:
Multiply the numerator and denominator by 10:
10(3/10) = 10(N/10) becomes 3 = N
Factor this trinomial completely.
15x2 + 11x- 12
O A. (x+3)(15x – 4)
O B. (x + 4)(15x – 3)
O C. (3x + 4)(5x - 3)
O D. (3x + 3)(5x - 4)
Answers
Answer:
(5x-3)(3x+4)
Step-by-step explanation:
I hope this helps
Help me!
No links!! Please!!
Answers
Answer:
The perimiter is 65
On Monday morning, a school cafeteria had 97.88 gallons of milk. At lunch, the students drank 8
gallons of the milk. How much milk does the cafeteria have left?
gallons
Answers
Answer:
89.88 gallons of milk
Step-by-step explanation:
97.88-8=89.88
4.What is the equation in point-slope form of the line passing through (3, 6) and (−2, 1)? (5 points)
a
y + 6 = 1(x + 3)
b
y + 1 = −1(x + 2)
c
y − 6 = −1(x + 3)
d
y − 6 = 1(x − 3)
Answers
Answer:
d
Step-by-step explanation:
im doing fast calculation
What is the slope of the line below?
The image is a graph of an x-axis and a y-axis. A line is drawn which passes through the points (2,3) and (-2,-7).
A. 5
B. 0.2 or 15
C. 2.5 or 52
D. 0.4 or 25
Answers
Answer:
The awnser is C. but please know I may be wrong
Step-by-step explanation:
In ΔIJK, k = 81 inches, i = 65 inches and ∠J=28°. Find the area of ΔIJK, to the nearest square inch.
Answers
Answer: 1236
its the answer from deltamath
5. Determine the horizontal distance when the vertical distance is 2m. You must
solve algebraically, not just use your graph to predict.
Really need help with this. Thanks. :)
Answers
Answer:
5
Step-by-step explanation:
A store had 112 diet sodas. The ratio of diet sodas to regular sodas was 8:4. How many regular sodas were there?
Answers
Answer:
56
Step-by-step explanation:
There are two ways the answer to this question can be determined
Method 1 : the fast method
We know that 8 is twice 4
4 x 2 = 8
The ratio of diet soda = 8
the ratio of regular sodas = 4
Diet sodas = 112
the number of regular sodas = 112 / 2 = 56
Method 2 : The long method
I would first determine the total number of diet and regular sodas. Let the total number be represented by d
from the question, the following equation can be derived :
(8/12) x d = 112
divide both sides of the equation by 12/8 to determine the value of d
d = 112 x (12/8) = 168
We can now derive a value for the number of regular soda
regular sodas = ( ratio of regular sodas / total soda) x total number of sodas
(4/12) x 168 = 56