Answer: x=-2
Y= -20
Step-by-step explanation
You replace the y in the second equation with 10x. This is because it says 10x=y
2x+10x=12x so you put that
12x=-24
To get x by its self you divide by 12.
-24 divided by 12 is -2.
Now you plug in -2 to either equation as y. I chose the first one because it's easier.
10(-2)=y
-20=y
Kari bought a fountain online. It cost $946 plus 28% shipping and handling. What was the total cost?
Answer:
$1210.88
Step-by-step explanation:
100 + 28 = 128
946/100 X 128 = 1210.88
An airplane is flying at a height of 200m. Its angle of elevation to an observer on the ground is 230. Calculate the distance of the airplane from the observer.
Answer:
Distance between the plane and the observer is 511.86 miles.
Step-by-step explanation:
From the figure attached,
A plane is flying at point A which is at 200 m height and observer is at point C.
Angle of elevation (∠ACB) of the plane from the observer is 23°.
Let the distance between the observer and the plane is x meters.
By applying sine ratio for angle C,
sin(∠C) = [tex]\frac{\text{Opposite side}}{\text{Hypotenuse}}[/tex]
sin(23°) = [tex]\frac{200}{x}[/tex]
x = [tex]\frac{200}{\text{sin}(23)}[/tex]
x = 511.86 miles
Therefore, distance between the plane and the observer is 511.86 miles.
Solve for x. -3 < x - 10
Answer:
7 < x
Step-by-step explanation:
-3 < x - 10
+10 +10
------------------
7 < x
Answer:
x > 7
Step-by-step explanation:
-3 < x -10
=> x - 10 > -3
=> x > 10 - 3
=> x > 7
HELP WHATS THE ANSWER FOR THIS
Answer:
Step-by-step explanation:
ITS 125!
Answer:
B. 55
Step-by-step explanation:
N+W=180°
N+125°=180°
N=180°-125°
N=55°
What is the y-coordinate for the solution to the system of equations? {−x+3y=9 {y=2/3x
Answer:
y = 6
Step-by-step explanation:
3 y - x = 9
y = (2 x)/3
Substitute y = (2 x)/3 into the first equation:
{x = 9
y = (2 x)/3
Substitute x = 9 into the second equation:
Answer:
x = 9
y = 6
Which of the following statements are true?
Please help..
Answer:
The answer is C
Eli is blocking off several rooms in a hotel for guests coming to his wedding. The hotel can reserve small rooms that can hold 3 people, and large rooms that can hold 5 people. Eli reserved twice as many large rooms as small rooms, which altogether can accommodate 65 guests. Determine the number of small rooms reserved and the number of large rooms reserved.
Answer:
Step-by-step explanation:
Answer:
5 small rooms and 10 large rooms
Step-by-step explanation:
EZ POG
In the diagram, which pair of angles are vertical angles?
•<1 and <2
•<4 and<6
•<6 and <8
•<5 and <3
alex, brian, and carlton competes the same weightlifting category this year and one of them won! the weight alex lifted plus the weight brian lifted was 220 kg. the weights lifted by alex and carlton totaled 240 kg. and the weights lifted by Brian and Carlton totaled 250 kg. How many kilograms did the winner lift
Answer:
135 Kilograms
Step-by-step explanation:
Alex = 105
Brian = 115
Carlton = 135
135
Ashley and Gabby bought lunch from the food trucks on Sugar Day. Ashley bought 3 tacos and a drink for $7. Gabby bought 2 drinks and 2 tacos for $8. How much does 1 taco cost? A taco costs__
Answer:
$1.5
Step-by-step explanation:
This would be solved using a simultaneous equation
let tacos = t
drink = d
3t + d = 7 -- eqn 1
2t + 2d = 8 -- eqn 2
Multiply equation 1 by 2 to derive equation 3
6t + 2d = 14 eqn 3
Substract equation 2 from equation 3
6t + 2d = 14 -- eqn 3
-
2t + 2d = 8 -- eqn 2
= 4t = 6
solve for t
6/4 = 1.5
= $1.5
standard form of -43/63 is
Answer:
7.28 × 1013
Step-by-step explanation:
The standard form of a number is introduced to avoid the difficulty of reading the large numbers. Any number that can be written in the decimal form between 1.0 to 10.0 multiplied by the power of 10.
A principal of $3100 is invested at 3% interest, compounded annually. How many years will it take to accumulate $4000 or more in the account? (Use the
calculator provided if necessary.)
Write the smallest possible whole number answer.
Answer:
8.46 years
Step-by-step explanation:
Given data
P=$3100
R= 3%
A= $4000
Calculate time, solve for t
t = ln(A/P) / r
substitute
t=ln(4000/3100)/3
t=ln1.290/0.03
t= 0.254/0.03
t= 8.46
Hence the time is 8.46 years
5. Which of the following systems of linear inequalities is represented on the graph
below?
A figure is going to be dilated by a scale factor of 3.5.
A. The area will change by a factor of 3.5.
B. The area will change by a factor of 7.
C. The area will change by a factor of 12.25.
D. The area will change by a factor of 49.
Which of the following describes the effect of the dilation on the area of the figure? P.S I will give brainliest
HURRY PLEASE find the lcm of 2x-6 and 4x+12 and x^2-9
Answer: 4 ( x − 3 ) ( x + 3 )
Step-by-step explanation:
The least common multiple (LCM) of two or more non-zero whole numbers is the smallest whole number that is divisible by each of those numbers. In other words, the LCM is the smallest number that all of the numbers divide into evenly.
Answer:
Below.
Step-by-step explanation:
2x - 6 = 2(x - 3)
4x + 12 = 4(x + 3)
x^2 - 9 = (x - 3)(x + 3)
So the LCM is:
4(x - 3)(x + 3)
or 4x^2 - 36.
pls help me with this equation!!!!!!!!!!!!!
Answer:
The missing angle is 65°
Step-by-step explanation:
For context, all triangles' angles will always add up to 180°. The outside angle of S is supplementary to the inside angle, so in order to find S:
180 - 153 = 27°
<TSU = 27°
S = 27°
U = 88°
As mentioned before, angles of triangles will add up to 180. In order to find the missing angle (?) we will add the other two sides and subtract them from 180.
27 + 88 = 115
180 - 115 = 65°
Can someone actually answer this unlike the last guy, please?
Answer:
m^2+n/2-17
Step-by-step explanation:
Answer:
[tex](4) \frac{n}{2} +m^{2} -17=2n+m^{2} -17[/tex]
Step-by-step explanation:
Step one: Remove Parenthesis
[tex]4*\frac{n}{2} =2n[/tex]
Step two: Add the rest back
[tex]=2n+m^{2} -17[/tex]
If there is something I missed please fill it in again sorry if I'm wrong.
From her home, Jada would have to walk 3 miles north to get to her friend Brianna's house and 4 miles east to get to her friend Luke's house. One day, Jada walked from her home to Luke's house. Together, Luke and Jada cut directly through the field that separated them from Brianna's house. When they finished playing at Brianna's, Jada walked back home. In all, how far did Jada walk?
Answer: 12 miles
Step-by-step explanation: Stright from her house to luke is 5 miles back ti brianna is 4 miles and back home is 3 miles all together 5+4+3=12
Please help me with number 1 to 6 please
PLEASE SOMEONE HELP ME
Answer:
-12x + -4y = 8 would be the full equation so -12x goes in the box
Step-by-step explanation:
I think
(-4)(3x) = -12x
..........
pls pls help with this. extra points. why would i use factoring to solve this quadratic equation?
Answer: x =
-1/6 -2
explanation:
I looked it up on Math
way
Answer: x=-2 x=-1/6
Step-by-step explanation: you can use factoring to solve this becuase it is factorable to real numbers. You would want to use quadratic formula is there is an imaginary number or square roots.
(6x+1)(x+2)=0
set them both equal to zero and solve, foil your answer
PLEASE HELP ITS MATH!!!!
This triangle has one side that lies on an extended line segment. Based on this triangle, what statement about x is true? A. x = 27 because 180−109−44=27 B. x = 65 because 109−44=65 and 44 + 65 = 109 C. x = 71 because 180−109=71 D. x = 153 because 109 + 44 = 153 and 153−44=109
MEASUREMENTS (down below)
A triangle with base on an extended line. Two angle measures are given. Top interior angle is forty-four degrees. Lower right exterior angle is one hundred nine degrees. Lower left interior angle is labeled x degrees.
Answer:
B. x = 65 because 109−44=65 and 44 + 65 = 109
Step-by-step explanation:
Given :
The triangle below :
Sum of interior angles of a triangle :
(44° + x + (180 - 109) = 180°
44° + x + 71° = 180
115° + x = 180°
x = 180° - 115°
x = 65°
5. Which of the following books in question #4
best represents an "outlier
A Book 7
B. Book 3
C. Book 8
D. There were no outliers in the scatter plot.
Answer:
c
Step-by-step explanation:
Answer:it’s A
Step-by-step explanation:
An integer is chosen random between 1 to 100. find the probability that it is divisible by 8
Answer: 0.12
x is the number which is chosen
The number of ways to choose x from 1 to 100 is 100 (ways)
because x is divisible by 8 => x ∈ {8; 16;...; 96}
=> the number of terms divisible by 8 from 1 to 100 is (96 - 8)/8 + 1 = 12
the number of ways to choose x which is divisible by 8 is 12 (ways)
=> the probability that x is divisible by 8 is 12/100 = 0.12
Step-by-step explanation:
Which of these people ran for about 35 minutes?
А
Karen ran from 10:48 AM until 11:32 AM
B
Kevin ran from 9:12 AM until 9:56 AM
С
Adam ran from 1:54 PM until 2:28 PM
D
Malin ran from 3:42 PM until 4:17
9514 1404 393
Answer:
D Malin ran from 3:42 PM until 4:17
Step-by-step explanation:
You need only examine the least-significant digits to determine of the difference of times will end in 5.
The only time difference that is 35 minutes is ...
3:42 pm to 4:17 pm . . . . . . choice D
I need help with math if you don't know the answer get out of the question and don't answer it and give the wrong answer or some link or even say "I don't…
If you are good at math please do this. IF U DONT DO IT AND PUT AN ANSWER SAYING YOU DONT KNOW IM REPORTING YOUR ACC
help mathhhhhhhhhh I don't understand will give brainly est if right if wrong u get the report and no points
Hey, I am here ranting about the fact that someone reported me for not having a long enough answer, even though the answer was CORRECT. I don´t know is it just me?
DO NOT REPORT Is it just me or do you just suddenly remember the good old days and how they were?
x=-y+3,3x-2y=-1 use substitution to solve the equation
Answer:
{x,y} = {1,2} I believe <3
Step-by-step explanation:
Answer:
3x - 2y = -1
[2] x + y = 3
Step-by-step explanation:
Select all please!:)
Answer:
d
Step-by-step explanation:
Answer:
the second one and the last one
Step-by-step explanation:
Joe ordered some books online and spent a total of $75 . Each book cost $6 and he paid a total of $3 for shipping . How many books did he buy ?
write 16+32 as a product of two factors using the GCF and the distributive property.
Answer:
48
Step-by-step explanation:
16+32=16(1+2)=16(3)=48
16 + 32 as product of two factors = 16 × 3
What is factor?A factor is a number that divides another number completely with no remainder. Factors and multiples are related concepts in math.
Given expression,
16 + 32
It can be written as
4 × 4 + 4×4×2
Greatest common factor = 4×4 = 16
16(1) + 16(2)
Using Distributive property, factoring out the GCF
16 (1 + 2)
16 × 3
Hence, 16 × 3 is the product form of 16 + 32.
Learn more about factors here:
https://brainly.com/question/2058395
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