1
2
What is the x-value in the solution to this system of linear equations?
2x - y = 11
x + 3y = -5
-3
02
4
Answer:
x = 4
Step-by-step explanation:
2x − y = 11 ⇒ -y = - 2x +11 ⇒ y = 2x - 11
x + 3y = -5
x + 3(2x - 11) = -5
x + 6x - 33 = -5
+33 +33
7x = 28
÷7 ÷7
x = 4
The solution of x in the system of linear equations is x = 4
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
2x - y = 11 be equation (1)
x + 3y = -5 be equation (2)
Multiply equation (1) by 3 , we get
6x - 3y = 33 be equation (3)
Adding equation (2) from equation , we get
7x = 28
Divide by 7 on both sides , we get
x = 4
Hence , the equation is solved and x = 4
To learn more about equations click :
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Angle ABD is 90°.
36ο
B
What is the measure of ZABC?
Ο Α. 369
Ο Β. 549
Ο Ο Ο Ο Ο
Ο C. 90°
Ο D. 1269
Ο Ε. 144
Answer:
a
Step-by-step explanation:
368
Answer:
answer is 54. Since angleABD - angleCBD = angleABC
THEREFORE,. 90-36
Solve for p.
21 + p = 44
Enter your answer in the box.
p=
Please help!
Answer:
p=23................
Answer:
p = 23
Step-by-step explanation:
simplify the expression so there is only one positive power for the base, -5.
Answer: The answer is C
Answer:
the anwer is c ig
Step-by-step explanation:
Find the value of X. 87° 92° 105 135
Answer:
121°
Step-by-step explanation:
Sum of angles in a pentagon = ( n-2) 180
(5-2)180
=3x180
=540°
X+87+92+105+135=540
X+419=540
X=540-419
X=121°
How many groups of ten are there in 230
Answer:
23
Step-by-step explanation:
230/10=23
since it got deleted last time -_-
pt 2 pls help me with math
Answer:
Step-by-step explanation:
Slope = (6-3)/(2-1) =3
How many 2/5 s are there in 4?
Answer:
there are ten (10) 2/5 in 4 .
To get ready for school supply shopping, a store orders 25,000 folders. The store gets another shipment of 15,250 folders the day before the sale.The store sells 32,400 folders the first day. How many folders does it have left after the first day?
Answer:
7,850
I’m pretty sure that’s right, I just added 25,000 and 15,250 together then subtracted the answer from 32,400 and got 7,850
Find the value of x.
Answer:
-5
Step-by-step explanation:
Distribute 4(x+6) = 4x+6
Since the angle are congruent to eachother set them equal to oneanother
4x+6 = 5x+11
Subtract 4x on both sides.
6 = x+11
Subtract 11 on both sides.
-5 = x
100 points! Help on 10 and I will mark brainliest
Answer:
Step-by-step explanation:
If each grid piece is 1 block, and there are going to there are 5 the 6*.05 = .3
the answer to your question is (If each grid piece is 1 block, and there are going to there are 5 the 6*.05 = .3)
Can someone help me?
Answer:
Purple -3 is the answer
Step-by-step explanation:
We start by opening the bracket
That would be;
x-x-3
= 0-3 = -3
So selecting the correct option, we can see that our answer is purple
Solve for x.
32 - 9 = 72 +14
Answer: their is no x?
Step-by-step explanation:
Answer:
Step 1 : 9=72 & 8=56
So, in 8 & 9, values are 72 & 56 resp. The gap between the two are
72 - 56 = 16
Step 2 : 8 = 56 & 7 = 42
So, in 8 & 7, values are 56 & 42 resp. The gap between the two are
56 - 42 = 14
Step 3 : 7 = 42 & 6 = 30
So, in 7 & 6, values are 42 & 30 resp. The gap between the two are
42 - 30 = 12
Step 4 : 6 = 30 & 5 = 20
So, in 6 & 5, values are 30 & 20 resp. The gap between the two are
30 - 20 = 10
Step 5 :
From steps 1, 2, 3 & 4 its’s clear that the gap between the next sequence is 8.
4 = x
So, now
20 - x = 8
X = 20 – 8
X = 4
So, 4 = 12
Now, to find 3 = y, we know that the gap between the next sequence is 6.
So, now
12 - y = 6
Y = 12 – 6
Y = 6
So, 3=6
Step-by-step explanation:
ayo I need some more help lol sorry!!!
Answer:
B,C, and D.
Step-by-step explanation:
sorry it took forever to get a response
The radius of a circle is 1 foot. What is the area of a sector bounded by a 90 degree arc?
Answer:
The answer is 11/14 ft^2 or pi/4 ft^2
Step-by-step explanation:
The area of the sector bounded by that angle measure will be the area of the circle divided by 4
Area of the circle is;
pi * r^2
so the area here is;
22/7 * 1 * 1 = 22/7
divide this by 4
= 22/28 = 11/14 ft^2
What is the slope line through 1,-1 and 6,2
Answer:
[tex]\huge\boxed{slope=\dfrac{3}{5}=0.6}[/tex]
Step-by-step explanation:
The formula of a slope:
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
We have the points (1, -1) and (6, 2).
Substitute:
[tex]m=\dfrac{2-(-1)}{6-1}=\dfrac{2+1}{5}=\dfrac{3}{5}=0.6[/tex]
find the distance between b and d
answer choices:
10.6 units
4.7 units
22 units
6.6 units
Answer:
10.6 units
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Reading a Cartesian PlaneCoordinates (x, y)Algebra II
Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Step-by-step explanation:
Step 1: Define
Find points from graph.
Point B(-3, -4)
Point D(6, -9)
Step 2: Find distance d
Simply plug in the 2 coordinates into the distance formula to find distance d
Substitute in points [DF]: [tex]\displaystyle d = \sqrt{(6+3)^2+(-9+4)^2}[/tex](Parenthesis) Add: [tex]\displaystyle d = \sqrt{(9)^2+(-5)^2}[/tex][√Radical] Exponents: [tex]\displaystyle d = \sqrt{81+25}[/tex][√Radical] Add: [tex]\displaystyle d = \sqrt{106}[/tex][√Radical] Evaluate: [tex]\displaystyle d = 10.2956[/tex]Round: [tex]\displaystyle d \approx 10.3[/tex]All the answer choices are wrong. Closest answer is 10.6 units.
Answer:
Coordinate grids are pretty fun and easy, your answer is gonna be 22 units im pretty sure! Have not done them in a while, so I hope this is correct!
A sweater was on sale at 40% off the regular price. Ella saved $20 by buying the sweater on sale. What was the regular price of the sweater?
Answer:
$60
Step-by-step explanation:
i-ready
The sum of twice a number and 18 is 5 less than three times the number, Write the
equation and find the number.
Step-by-step explanation:
Let x represent the number.
We have 2x + 18 = 3x - 5, therefore x = 23.
The number is 23.
What is the sum of 1.57 and 6.88?
7 tenths, 3 hundredths, and 5 thousandths
8 ones, 4 tenths, and 5 hundredths
5 ones, 4 tenths, and 8 hundredths
7 tenths, 4 hundredths, and 5 thousandths
Answer:
The answer would be B: 8 ones, 4 tenths, and 5 hundredths.
Explanation:
First, you would have to use the equation: 1.57 + 6.88 = ?
Do the math, and 1.57 + 6.88 = 8.45
Now look at the answer choices. You can automatically get rid of every answer choice but B because none of them have an 8 in the ones place.
What is the Area of this irregular shape?dfgju i
Answer:
The area of the irregular shape is 20 square cm
Step-by-step explanation:
Area of an Irregular Shape
Some shapes do not have regular shapes like squares, circles, triangles, etc. where well-known formulas can be applied to calculate their areas.
We have to calculate the area of the shape provided in the figure. We have divided the shape into three rectangles (see figure below). The total area of the irregular shape is:
A = A1 + A2 + A3
The first rectangle has dimensions 2 cm by 1 cm, thus its area is:
A1 = 1 cm * 2 cm = 2 square cm
The second rectangle has dimensions 2 cm by 3 cm, thus its area is:
A2 = 2 cm * 3 cm = 6 square cm
The third rectangle has dimensions 3 cm by 4 cm, thus its area is:
A3 = 3 cm * 4 cm = 12 square cm
The total area is:
A = 2 square cm + 6 square cm + 12 square cm = 20 square cm
The area of the irregular shape is 20 square cm
i need help plz.
i think its 6.6ft what do u guys think?
Answer: 6.6ft
Step-by-step explanation:
What is the value of 4(2f-3d)+2(2d+e)
Answer:
−8d+8f+5.436564
Step-by-step explanation:
based on the results, what is the experimental probability that the puppy will be named lemon or linus?
Answer:
Sorry
Step-by-step explanation:
I wish I knew
Will mark brainliest
Solve each system by elimination. Show work for answer
4x+9y=5
-4x +7y=11
Answer:
adding both equations
4x+9y=5
-4x+7y=11
+ + =+
________
0 +16y=16
y=1
putting the value of y in first eqn
4x+9×1=5
4x=5-9
4x=-4
x=-1
so the x is -1 and y is 1
Solve: (4hj)^0
A. 0
B. 4h^1j^1
C. 4
D. 1
Answer:
Any number powered to zero, the answer to the equation will be 1
$7,600.00 is to be divided in the ratio 5:6:8 respectively for three siblings Joseph, Mike
and Aaron. Calculate how much money each sibling will get.
Answer:
I’ll take 7,6000 dollars
Step-by-step explanation:
HELP PLEASE!! Identify the function shown in this graph.
Answer:
A. y=3x-2
hope this help
Sandy charges each family that she babysits for a flat fee of $10 for the night and $5 extra per
child. Sandy made a total of 30 dollars. Write an equation to represent the number of children
that Sandy watched.
*WILL GIVE A BRAINIST*
GEOMETRY