Answers
Answer:
x=3
y=1
Step-by-step explanation:
-2x - 7y = -13
3x + 6y = 15
3(-2x - 7y = -13) = -6x - 21y = -39
2(3x + 6y = 15) = 6x + 12y = 30
-6x - 21y = -39
---------------------- The -6x and 6x cancel out, 12 - 21 is equal to 9, 30 - 39 = -9
6x + 12y = 30
Therefore, you can say that -9y = -9 so y = 1
FInally, plug that back into either one of the original equations:
3x + 6(1) =15
3x = 9
x = 3
Related Questions
Box contains 3 red and 5 white balls, while Box II contains 4 red and 2 white balls. A ball is chosen at random from the first box and placed in the second box without observing its color. Then a ball is drawn from the second box. Find the probability that it is white.
Answers
A ball is drawn from the second box. The probability that it is white. is 3/8
What is probability ?The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true.
An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.
The probability is computed by dividing the total number of possible outcomes by the number of possible ways the event could occur. Probability and odds are two distinct ideas. Odds are calculated by dividing the likelihood of an event by the likelihood that it won't.
Computation Of Probability is in the image .
To learn more about Probability
https://brainly.com/question/11234923
# SPJ2
Score: 0 of 1 pt
x 7.3.7
Amanter on the edge of a mol has the shape a rectangular prism. It is 9 inches high, 2 inches wide, and 14 feet long. How much water can the gutter hold in cubic inches in gallons? Use the fact that
1231 inches
The gather canto cubic inches of water
Answers
Answer:
1.1 gallons
Step-by-step explanation:
Given that the shape of the gutter is in the form of a rectangular prism with length 14 feet, width 2 inches and of height 9 inches.
The volume of the gutter = length x width x height
= 14 x 2 x 9
= 252
The volume of the gutter = 252 cubic inches
But with the given fact, we divide the volume determined by 231 inches.
Then,
the required volume in gallons = [tex]\frac{252}{231}[/tex]
= 1.090908
The gutter can hold water of 1.1 gallons.
If m∠XWY=20∘,m∠XWZ=40∘, and XY = 16, what is the value of YZ?
Answers
Answer:
YZ=16
Step-by-step explanation:
Because they are parallel
Help me please I really need this to be done
Answers
Answer:
852
Step-by-step explanation:
1420 ×60% as an equation would be: 1420×.60
$9,800,000 is what percent of $7,000,000
Answers
Answer:
686000000000
Step-by-step explanation:
1. We assume, that the number 7000000 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 7000000 is 100%, so we can write it down as 7000000=100%.
4. We know, that x is 9800000% of the output value, so we can write it down as x=9800000%.
5. Now we have two simple equations:
1) 7000000=100%
2) x=9800000%
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
7000000/x=100%/9800000%
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.
7. Solution for what is 9800000% of 7000000
7000000/x=100/9800000
(7000000/x)*x=(100/9800000)*x - we multiply both sides of the equation by x
7000000=1.0204081632653E-5*x - we divide both sides of the equation by (1.0204081632653E-5) to get x
7000000/1.0204081632653E-5=x
686000000000=x
x=686000000000
now we have:
9800000% of 7000000=686000000000
Which of the following numbers could not be used to describe a distance walked?
O 12 feet
O - 140 feet
130 feet
O |-125 feet
Home | Lesson AS...
acer
Answers
Answer:
You cant use acre to describe distance walked
Step-by-step explanation: Because 1 acre is 43560ft
7. In the accompanying diagram of right triangle ABC, altitude BD divides hypotenuse
AC into segments of 3 and 9. Find AB.
A) 6
B) 36
C) 313
D) 12
Answers
Answer:
A.
Step-by-step explanation:
A circle has two tangents AB and AC that intersect in the exterior of the circle. If the measure of the arc closest to the intersection is 118°, determine the measure of ∠A
Answers
Answer:
62
Step-by-step explanation:
[tex]360 - 118 = 242[/tex]
[tex] \frac{242 - 118}{2} = 62[/tex]
Angle a=62
Adrian
Marlon had 6 hits in 15 at bats. How does Marlon's
hits to at bats ratio compare to Adrian's?
Adrian had 4 hits in 10 bats.
Answers
Answer:
Hence, both Marlon and Adrian both have the same at bats percentage.
Step-by-step explanation:
Marlon's at bats :
Number of at bats = 15
Hits = 6
Hit percentage = 6/15 * 100% = 40%
Adrian :
Number of at bats = 10
Hits = 4
Hit percentage = 4/10 * 100% = 40%
Hence, both Marlon and Adrian both have the same at bats percentage.
Can someone please help me?
Answers
Answer:
F. The mode of the data for Store 2 is greater than the mode of the data for Store 1
Step-by-step explanation:
The mode for Store 2 = 2 (2 appears most)
The mode for Store 1 = 1 (1 appears most)
Therefore, mode of the data for Store 2 is greater than mode of the data for Store 1
Statement F is supported by the information in the dot plots.
(PLEASE HELP) Triangle LMN is similar to triangle OPR. Find the measure of side RO. Round your answer to the nearest tenth if necessary. Figures are not drawn to scale.
Answers
Answer:
RO = 107.36Step-by-step explanation:
ΔLMN = ΔOPR ----- (given)
so,-----------------------NM / NL = RP / RO
19 / 34 = 60 / RO
RO = 60 × 34 ÷ 19
RO = 107.36
slope=4; y-intercept =-5
Answers
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! HELP !!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Retail price: $745; discount rate: 12.5% what is the discount?
Answers
Answer:
mmmmmmmm
Step-by-step explanation:
the answer ................
WORTH 50 POINTS!!!!!!!!!!!!!!!
1. What is the degree of the monomial 3x^2y^3?
A. 2
B. 3
C. 5
D. 6
2. What is the simplified form of 8b^3c^2 + 4b^3c^2 ?
A. 12bc
B. 12b^3c^2
C. 12b^6c^4
D. 12b^9c^4
3. What is the simplified form of (4j^2 + 6) + (2j^2 + 3) ?
A. 6J^2 --- 3
B. 6J^2 + 3
C. 6J^2 + 9
D. 4J^4 + 3
4. what is the difference of the following polynomials?
(6x^3 - 2x^2 + 4)
- (2x^3 + 4x^2 - 5)
------------------------------------
A. 4x^3 - 2x^2 - 1
B. 8x^3 + 6x^2 - 1
C. 4x^3 - 2x^2 + 1
D. 4x^3 - 6x^2 + 9
( OKAY THIS ONE EVEN HARDER ;-; )
5. f (x) = 3x^3 - 4x^2 + 6x and g (x) = 5x^3 + 2x^2 - 3x. What is f (x) - g (x) ?
A. -2x^3 - 6x^2 + 9x
B. -2x^3 - 6x^2 - 3x
C. 2x^3 + 6x^2 + 3x
D. 8x^3 - 6x^2 - 9x
------------------------------------------------------------------------------------------------------------------
i need my grades to improve a bit so please help ;(
(if you wanna do some work while listening to sugarcrash for an hour then i will send you da link!)
Answers
Answer:
2. 6j^2 + 3
Step-by-step explanation:
Answer:
A=5283
Step-by-step explanation:
HELP PLEASEEE I NEED IT
Answers
Answer:
See explanation
Step-by-step explanation:
1st photo:
(a) MKL ~ MLJ ~ LKJ
basically, you have to match the corners to each other (i dont have a better way of explaining this sorry)
(b) KL/KJ = KM/LK AND LJ/MJ = KJ/JL
match sides to each other
2nd photo:
(a) d = 7[tex]\sqrt{2}[/tex]
you have to use special right triangle rules for a 45-45-90 triangle
(b) a = [tex]\frac{4\sqrt{3} }{3}[/tex]
you have to use special right triangle rules for a 30-60-90 triangle
3rd photo:
x = 38.9°
[tex]cos^{-1}[/tex](7/9) = 38.9°
ADFE - AACB. What is the length of DE? Diagrams are not drawn to scale.
С.
15
62
3
3072
B
D
X
E
45
A А
Answers
Answer:
The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115The angles of A and B are 45 degrees. This is true because the other angle is a right angle (90 degrees) and if you are making a triangle the degrees of the sides have to = 180 to be a complete triangle. The triangle is complete, so I took 180 – 90 = 90 ÷ 2 = 45.
The angle of C is 115 because it is a supplementary angle. A supplementary angle is an angle that has two angles with a sum of 180 degrees and 180 – 65 = 115
Step-by-step explanation:
For which value of x is the row in the table of values the incorrect? The function is quadric function y=5x^2
A. x=5
B. x=0
C. x=3
D. x=2
Answers
Answer:
x = 2
Step-by-step explanation:
Substitute x = 2 into y = 5x² , that is
y = 5(2)² = 5(4) = 20 ≠ 10
Thus (x, y ) = (2, 20 ) and not (2, 10 )
Khan Academy
Multiplying decimals like 2.45x3.6 (standard algorithm)
6.13 x 8.6 = ?
Report a
Stuck? Watch a video or use a hint.
Answers
Answer:
52.718
Step-by-step explanation:
6.13 x 8.6 equal 52.718
in short
52.71
Answer:
52.718
Step-by-step explanation:
6.13x8.6=52.718
What is the surface area? 4 mm 3 mm 1 mm
Answers
Answer:
This is your answer ☺️☺️☺️
What is a tree diagram?
a
A drawing with branches of all possible outcomes
b
A written list of all possible outcomes
c
A description of all possible outcomes
Answers
Answer:
Ok so a tree diaphragm is used in math. The answer is b a written list because it’s a little small diaphragm used for math also I’m in sixth grade
Step-by-step explanation:
Please help, find the surface area and lateral area.
Answers
Answer:
1,764
Step-by-step explanation:
first you 6x7 then 3x4x3.5 then add the products together
p.s. your welcome
A convex hexagon has interior angles that measure 100°, 127°, 90°, 182°, and 85°. What is the measure of the 6th interior angle?
a. 187°
b. 88°
c. 136°
d. 160°
Answers
If f (x) = 2x, find the output when x = -4.
Answers
Answer:
f(-4) = -8
Step-by-step explanation:
f (x) = 2x
Let x=-4
f(-4) =2*-4
= -8
Answer:
The answer is -8.
Step-by-step explanation:
f(x)=2x
f(-4)=2(-4)
f(-4)=-8.
Alicia's monthly gross pay is $1,700. Alicia pays 10.5% of her monthly income in federal withholding. How much federal withholding does she pay?
Answers
Answer:
$161.90
Step-by-step explanation:
You divide 1700 by 10.5.
Which of the following cannot be determined?
a. The angle between two vectors.
b. The magnitude of a vector.
c. The point product of a vector.
d. The angle of a vector in standard position.
Answers
Answer:
C point product of a vector.
Step-by-step explanation:
Got it right on Odyssey ware
Find the slope of the line that passes through (10, 4) and (3, 1).
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
Answers
Answer:
(3,-9)
Step-by-step explanation:
sorry if its wrong i tried...
(10,4),(3,1)
Subtract the y-coords, then the x-coords.
4-1=3
10-3=7
The slope is 3/7. Let me know if you need help graphing it too.
3 is the rise and 7 is the run. You start at (0,0) and you go up 3 units, then 7 units right. The first coordinate should be (7,3). Repeat until you have a straight line.
---
hope it helps
How do you explain that 0.9 is equivalent to 0.90?
Answers
Answer:
it is equivalent because if you the zero to 0.9 then you will see that 0.9 and 0.90 are the same numbers.
Step-by-step explanation:
Quadrilateral ABCD is translated to get quadrilateral A′B′C′D′. Vertex A is at (-5, 2), and vertex A′ is at (2, -2).
Quadrilateral ABCD is translated
. If vertex B is at (-6, 5), then vertex B′ is at
FILL IN THE BLANKS
Answers
proof: the translation from A to A’ is (7,-4) therefore applying the same conditions to B would give you the outcome of (1,1)
A right triangle has a leg of 15 feet and a second leg of 24 feet. Find the length of the hypotenuse
to the nearest hundredth of a foot.
Answers
Answer:
9
Step-by-step explanation:
-