Answers
Answer:
x=2<br/>y=1
Step-by-step explanation:
\left\{ \begin{array} { l } { 4 x + y = 9 } \\ { 3 x - 2 y = 4 } \end{array} \right.
4x+y=9,3x-2y=4
4x+y=9
4x=-y+9
x=\frac{1}{4}\left(-y+9\right)
x=-\frac{1}{4}y+\frac{9}{4}
3\left(-\frac{1}{4}y+\frac{9}{4}\right)-2y=4
-\frac{3}{4}y+\frac{27}{4}-2y=4
-\frac{11}{4}y+\frac{27}{4}=4
-\frac{11}{4}y=-\frac{11}{4}
y=1
x=\frac{-1+9}{4}
x=2
x=2,y=1
Related Questions
if x = 1/2 when y = 36 what id x when y = 144
Answers
144/36= 4
1/2(4)= 2
x = 2
PLEASE HELP!!!!!!!What has to be true if you want to solve a quadratic?
Answers
Answer:
Here you go
Step-by-step explanation:
The quadratic formula helps you solve quadratic equations, and is probably one of the top five formulas in math. Then the formula will help you find the roots of a quadratic equation, i.e. the values of x where this equation is solved.
CAN SOMEONE PLEASE HELP ME
Answers
Answer:
sorry about being late
Step-by-step explanation:
Volume = length * width * height in [tex]cm^{3}[/tex]
V1 = 11* 6 * 5 = 330
V2 = 27*6*5= 810
v3 = 11*6*3 = 198
V4 = 11*0.5*5= 27.5
The direction are unclear if that's what they have in mind for the size of the box.... just plug in the asked for numbers if those are not correct. :)
Find the volume of figure B
Answers
Answer:
volume of Figure B = 75 m³
The vertex of a parabola is (3,-2) and another point on the parabola is (2,3) find the equation of the parabola in vertex form
Answers
Answer:
[tex]y = 5 ( x - 3 ) ^2 -2[/tex]
OR
[tex]y+2= 5 ( x - 3 ) ^2[/tex]
Step-by-step explanation:
Vertex form of a parabola is given as:
[tex]y = a ( x - h ) ^2 + k[/tex]
Where ([tex]h,k[/tex]) is the vertex and [tex](x,y)[/tex] are the points on the parabola.
We are given that, the vertex is (3, -2) and another point on parabola is given as (2, 3).
[tex]h = 3,k = -2[/tex]
First of all, putting the vertex in the vertex equation as given above:
[tex]y = a ( x - 3 ) ^2 + (-2)[/tex]
Now, putting the values of [tex]x, y[/tex] as 2, 3 and let us find the unknown variable [tex]a[/tex]:
[tex]3 = a ( 2 - 3 ) ^2 + (-2)\\\Rightarrow 3 = a -2\\\Rightarrow a = 5[/tex]
Therefore, the equation in vertex form can be written as:
[tex]y = 5 ( x - 3 ) ^2 -2[/tex]
OR
[tex]y+2= 5 ( x - 3 ) ^2[/tex]
heeeeeeeelpppppppppp
Answers
Answer:
14.83 feet
Step-by-step explanation:
[tex]c^{2} =a^{2} +b^{2}[/tex]
a=[tex]\sqrt{16^{2}-6^{2} }[/tex]
a=14.83 feet
Help please I only have a bit more time?
Answers
Answer:
a
Step-by-step explanation:
it should be right
Sam bought a 7/8 -foot piece of wood to make some small boxes to hold his insect collection. He used 3/16 foot of wood for each box. Which equation can be used to show how many boxes Sam made?
Answers
Answer:
Number of small boxes Sam made = Total piece of wood bought / Piece of wood used for each small box
Step-by-step explanation:
Total piece of wood bought = 7/8 foot
Piece of wood used for each small box = 3/16 foot
Number of small boxes Sam made = Total piece of wood bought / Piece of wood used for each small box
= 7/8 foot ÷ 3/16 foot
= 7/8 × 16/3
= 7×16 / 8×3
= 112 / 24
= 4 16/24
= 4 2/3 small boxes
The equation is:
Number of small boxes Sam made = Total piece of wood bought / Piece of wood used for each small box
Evaluate the polynomial for the given value of x.
- 4x5 - 5x4 – 3x3 - x? for x = -2
A. 97
B. 68
C. 64
D. 63
Answers
Answer:
I might be wrong but I think it is A
How do you become an administrator?
Answers
How do you become an administrator?
I think answering a lot of questions and dont get warnings
Answer:
By getting ligma or Sukon and after that fill out a survey and then joe will tell you if you qualify
Brainliest to the right answer! please help!
Answers
Answer:
-2x+7y
Step-by-step explanation:
Fist look at the x and then y.
2(x + 14) = 40
Can you please do all the steps of solving this?
Ex:
8(7+1)3=192
8 x (7+1) x 3
8
8x8=64
64x3=192
total=192
Answers
Answer:
6
..........
Step-by-step explanation:
2(x+14)=40
2x+28=40
2x=40-28
2x=12
x=6
Answer:
Step by step in screenshot below. Hope this helps.
Step-by-step explanation:
What is included between two congruent sides in an isoceles triangle
Answers
In an isosceles triangle that has exactly two equal sides, the equal sides are called legs and the third side is called the base. The angle included by the legs is called the vertex angle and the angles that have the base as one of their sides are called the base angles.
A train covers the distance between two cities A and B at 70km/h during certain time. If it goes 10km/h faster, it will cover the same distance in one hour less. Find the distance between the two cities and the time it takes to do the first trip
Answers
Answer:
distance between 2 cities is 490km
time taken for first trip is 7 hours
Step-by-step explanation:
speed. time
70 x
10. 1
= 10x =70*1
x=70/10
=7 hours
distance= speed*time
=70*7
=490km
80 middle-school students went on a field trip to watch a performance of Alice In Wonderland. When the teacher took a survey, 70% of the students responded that they enjoyed the play. About how many students enjoyed the play?
Answers
Answer:
56 students
Step-by-step explanation:
Because there are 80 students and only 70% enjoyed it, 70% is equal to 0.7 so you would multiply 80 by 0.7.
If point P is Four-sevenths of the distance from M to N, what ratio does the point P partition the directed line segment from M to N into?
Answers
Answer:
m into5
Step-by-step explanation:
Answer:
ANSWER 4:3
Step-by-step explanation:
Given : A point P is 4/7 of the distance from M to N.
∴ Let the distance between M to N be d.
Also, the point P partition the directed line segment from M to N .
Thus , MN = MP+PN
Now, the ration of MP to PN will be :-
∴ Point P partitioned the line segment MN into 4:3.
When dividing 3x4 – x^2 – 2x + 6 by 2x2 - x - 5, the remainder will be ...?
Answers
Answer: -7.5 maybe
Step-by-step explanation:
Find the value of x in each parallelogram. BOX YOUR ANSWERS!!!!
1.
2.
60°
3.
60°
154
35
4.
5.
85
6.
2
51°
82"
Answers
Answer:
1. 120
2. 26
3. 145
4. 95
5. 129
6. 98
Step-by-step explanation:
Number 1:
Remember: Diagonals are congruent (in this case scenario).
Remember: Consecutive angles are supplementary.
☆You are going to subtract 60 from 18p. (You are subtracting it from 180 specifically because the angles are on a straight angle, and a straight angle equals 180 degrees.)
[tex]180 - 60 = 120[/tex]
^Hence your answer^
Number 2:
Remember: Consecutive angles are supplementary.
☆You are going to subtract 154 from 180.
[tex]180 - 154 = 26[/tex]
Number 3:
Remember: Consecutive angles are supplementary.
☆You are going to subtract 35 from 180.
[tex]180 - 35 = 145[/tex]
Number 4:
Remember: Consecutive angles are supplementary.
☆You are going to subtract 85 from 180.
[tex]180 - 85 = 95[/tex]
Number 5:
Remember: Consecutive angles are supplementary.
☆You are going to subtract 51 from 180.
[tex]180 - 51 = 129[/tex]
Number 6:
Remember: Consecutive angles are supplementary.
☆You are going to subtract 82 from 180.
[tex]180 - 82 = 98[/tex]
Store A sells a set for $25 and offers a 10% discount. Store B sells a set for $27 and offers a 20% discount. Store C sells a set for $26 and offers a 15% discount.
Answers
Answer:
store a's set after discount is $22.5
store b's set after discount is $21.6
store c's set after discount is $22.1
so store b would be the cheapest hope this helps please give me brainliest
Step-by-step explanation:
On a unit circle, the vertical distance from the x-axis to a point on the perimeter of the circle is twice the horizontal distance from the y-axis to the same point. What is sin of theta
Answers
Answer:
2/√5
Step-by-step explanation:
A unit circle is a circle of unit radius. This means that the radius of a unit circle is 1.
Let a represent the horizontal distance. Therefore the vertical distance = twice the horizontal distance = 2a
We can get the hypotenuse using Pythagoras theorem:
hypotenuse² = a² + (2a)²
hypotenuse² = a² + 4a²
hypotenuse² = 5a²
hypotenuse = √5a²
hypotenuse = a√5
sin(θ) = opposite / hypotenuse
sin(θ) = vertical distance / hypotenuse
sin(θ) = 2a / a√5
sin(θ) = 2/√5
In which quadrant does the point (13, 18) lie
Answers
Answer:
Quadrant 1
Step-by-step explanation:
how I understood this is first understanding how a graph works. Once you understand that you can count 13 horizontal on the "X" Axis, then go 18 up on the "Y" axis. you should get a point in the upper left area and that area is called Quadrant 1. Say if 13 was negative instead of going horizontal east you would go horizontal west. And the point should end up in Quadrant 2. Any more questions feel free to ask me below.
Katie is purchasing plates and mugs for her house.
She would like to buy at least 8 items. Plates cost
$8 each and the mugs cost $7 each, and she plans
to spend no more than $112. Write a system to
model the situation and then solve.
Answers
Step-by-step explanation:
Plate: $8 each
Mug: $7 each
Spend Limit: $112
Items Wanted: 8
Considering she wants eight items, she can split that in half and buy four of each item, plate and mug.
8 * 4 = 32
$32 for 4 plates.
7 * 4 = 28
$28 for 4 mugs.
However, if she wanted to spend all the money, she could buy a few more of each item.
A chrome book cost 249.99 at target on Black Friday it is on sale for 15 % off what is the price of the computer on Black Friday
Answers
Answer:
The price is 212.49
Step-by-step explanation:
sorry if wrong.
How much should Mr.Ajay and his wife save ina month to achieve their financial goal?
Answers
Answer:
RM 1000
Step-by-step explanation:
Down payment = 10% of 600 000
[tex]= \frac{10}{100}*600000[/tex]
= RM 60000
5 years = 5 * 12 = 60 months
Amount to be saved in a month = 60000 ÷ 60
= RM 1000
Solve for elimination x-4y= -9 and -x+3y=7
Answers
Explanation:
Hope this helps :)
50% markup for all of the shoes it sells. What would be the selling price of a pair of shoes that has a wholesale cost of $63?
Answers
Answer:
$94.50
Step-by-step explanation:
50%=.50
.50x63=31.50
31.50+63=94.50
7(12b + 9) - b what is the awnser
Answers
Answer:
12b + 14p - 7
Step-by-step explanation:
It is already simplified.
can i get brainlist too
Ben creates a pattern using the rule “add 5.” Laura creates a pattern using the rule “add 10.”
Ben’s pattern: 0, 5, 10, 15, 20, 25
Laura’s pattern: 0, 10, 20, 30, 40, 50
Which is true?
Answers
Answer:
both
Step-by-step explanation:
you count my 5s like 5, 10, 15, 20, 25
you count by 10s like 10, 20, 30, 40, 50
ted's company has recieved an order to print 10^6 pages. ted's company has 100 machines , each of which can print 10^4 pages a day. ted's company can print the 10^6 pages in blank.
in exponent form, this number of days can be represented as blank
Answers
Answer:
1 day ; 10^0
Step-by-step explanation:
Given that:
Order received = 10^6 pages
Number of machines = 100
Daily printing capability by each machine = 10^4
Hence, total output per day = (10^4) * 100 = 10^4 * 10^2 = 10^4+2 = 10^6
Number of days required = number of order / daily output
Number of days = 10^6 / 10^6 = 1
In exponent form:
10^6 / 10^6 = 10^6-6 = 10^0
The ratio table below shows the number of miles Shondra drove in a car for certain amounts of time during a road trip. Driving Distance Hours Driven Miles Driven 1 60 2 120 3 180 4 ? If Shondra traveled the same number of miles each hour, how many miles did she travel in 4 hours?
Answers
Answer:
Step-by-step explanation:
u take 2(64)-600-94 then u get 120
Answer:
240
Step-by-step explanation:
i had a stroke reading the one above me but i took the test:)