How many solutions does the system of linear equations have? y=6x + 4 y = 3x - 2
Answer:
5 solutions
Step-by-step explanation:
due to mathimatical change during the slope change
The table below shows all possible outcomes of flipping a coin two times in a row, where H stands for heads and T stands for tails.
Possible
Outcome
Heads/Tails
Combination
HH
HT
2
3
TH
TT
4
Which fraction represents the probability of flipping two tails in a row?
5 in
12 in
Solve for x.
Right triangle
Answer:
That kind of depends what x is...the theta angle? the hypotenuse? the base?
But i'll solve it for the missing value of the hypotenuse
5^2 +{ 12^2=c^2
169=c2
c=169 root
c=13 inches
find the sum of all numbers from 150 to 200 which are divisible by7
Step-by-step explanation:
The sum is 1225
Solution :
The numbers from 150 to 200 divisible by 7 are 154,161 ,168,…., 196
Here, a=154,d=7a=154,d=7 and tn=196tn=196
tn=a+(n−1)dtn=a+(n-1)d …(Formula )
∴196=154+(n−1)×7∴196=154+(n-1)×7 …(Substituting the values )
∴196−154=(n−1)×7∴196-154=(n-1)×7
∴427=n−1∴427=n-1 ∴n−1=6∴n-1=6 ∴n=7∴n=7
Now, we find the sum of 7 numbers.
Sn=n2[t1+tn]Sn=n2[t1+tn] ...(Formula )
=72[154+196)=72[154+196)
=72×350=72×350
=7×175=7×175
=1225
which equation is equivalent to x+8=21
The value of the square root of 12 is between which two integers? let me know asap
Answer:
The answer to this question is 3 and 4.
Un objeto tiene una masa de 0.044Lb cuando se sumerge en una probeta que inicialmente contiene 0.350L de agua, el nivel de agua se eleva a 0.485L. ¿Cuál es la densidad (g/mL) del objeto?
Answer:
147.84 g/L
Step-by-step explanation:
Paso 1
El volumen del objeto se calcula como:
0.485L - 0.350L
= 0.135 litros
Paso 2
Convertimos la masa del objeto de libras a gramos
1 libra = 453.592 gramos
0.044 libras (lb) = x
Cruz multiplicar
x = 0.044 × 453.592 gramos
x = 19.958064 gramos
Paso 3
Densidad del objeto
= Masa (gramos) / Volumen (L)
= 19.958064 gramos / 0.135L
= 147.837511111 g / L
Aproximadamente = 147.84 g / L
Por lo tanto, la densidad (g / mL) del objeto es 147.84 g / L
Can someone pls answer both answers? Thank you so much :3
Answer:
1.40
2.51
welp that's all
A train travels at an average speed of 63.5 miles per hour. At this speed, how far could the train travel in 4.75 hours?
Answer:
301.625 miles
Step-by-step explanation:
63.5 times 4.75
Find m<YQR pls need grade gud.
Answer:
21°
Step-by-step explanation:
We can prove these two triangles congruent by the HL (Hypotenuse-Leg) theorem. Then, we know that m<YQR is congruent to m<PQY. We can then use their given values to form an equation.
5x+6=16x-27
Continue to solve . . .
33 = 11x
x=3
Therefore, we can plug this value of 3 into the expression for the value of m<YQR, and you will get
(16 x 3) - 27, which is equal to 21°.
When liquid silver nitrate and liquid sodium chloride are combined, solid silver chloride forms along with a new liquid, sodium nitrate. Which substance represents the precipitate?
Answer:
sodium chloride
Step-by-step explanation:
It is the chemical element (symbol Na) with an atomic number of 11 and atomic weight of 22.98977. It is a soft, waxy, silvery, reactive alkali metal that is never found unbound in nature.
Match each of the equations with their corresponding graph
Answer:
Equation A) y = [tex]x^{3} + 2x^{2} - 1[/tex] is Graph E
Equation B) y = [tex]2x^{2} - x -3[/tex] is Graph A
Equation C) y = [tex]\frac{1}{x} +1[/tex] is Graph B
Equation D) y = [tex]2-3x^{2} -x^{3}[/tex] is Graph D
Solve the system of linear equations below, using substitution method.
8x+9y=368x+9y=36
3x+4y=163x+4y=16
Given:
The system of equations is
[tex]8x+9y=36[/tex]
[tex]3x+4y=16[/tex]
To find:
The solution of the given system of equations using the substituting method.
Solution:
We have,
[tex]8x+9y=36[/tex] ...(i)
[tex]3x+4y=16[/tex] ...(ii)
From (ii), we get
[tex]3x=16-4y[/tex]
[tex]x=\dfrac{16-4y}{3}[/tex] ...(iii)
Putting this value in (i), we get
[tex]8\left(\dfrac{16-4y}{3}\right)+9y=36[/tex]
Multiply both sides by 3.
[tex]8(16-4y)+27y=108[/tex]
[tex]128-32y+27y=108[/tex]
[tex]-5y=108-128[/tex]
[tex]y=\dfrac{-20}{-5}[/tex]
[tex]y=4[/tex]
Putting y=4 in (iii), we get
[tex]x=\dfrac{16-4(4)}{3}[/tex]
[tex]x=\dfrac{16-16}{3}[/tex]
[tex]x=\dfrac{0}{3}[/tex]
[tex]x=0[/tex]
Therefore, the solution of given system of equations is (0,0).
Christi alters a skirt. She cuts 7 inches off the bottom of the skirt and then adds a 5-inch ruffle to the skirt's remaining bottom edge. Which expression best represents the final length of the skirt?
Answer: ( x -2 ) inches
Step-by-step explanation:
Let x = length of skirt.
Given: Christi first cuts 7 inches off the bottom of the skirt and then adds a 5-inch ruffle to the skirt's remaining bottom edge.
Cutting of length will be represented by a negative integer.
The expression best represents the final length of the skirt = x-7+5 inches
= x -2 inches
Hence, the expression best represents the final length of the skirt = ( x -2 ) inches
I can’t figure this out! I don’t really know if I’m supposed to use the vertices that are on the coordinate plane or something else, I need help. My question is, What’s the area and the perimeter of the polygon????
Answer:
Area : 27
Perimeter : 24
Step-by-step explanation:
Area : Just count the number of squares in the box
Perimeters : Count the number of squares surrounding the box
When salt and water are combined, they form a salt or saline solution. How much ml of water must be added to 150 mL of an 80% saline solution to produce a 30% saline solution?
ax+by=? Answer it plzzz
Answer:
x=
a
y−b
Step-by-step explanation:
Chocolate Cravings sells 6 chocolate covered pretzels for $1.80 and 5 chocolate covered strawberries for $6.00. At this rate, what is the total cost of buying 2 pretzels and 2 strawberries? WHO EVER ANSWERS THIS FIRST WILL GET 45 POINTS AND WILL BE RATED BRAINIEST
Answer:
60 for chocolate pretzels and 1.50 for strawberry for the total cost will be 2.10$
Step-by-step explanation:
Answer:
the total would be 1.50
Step-by-step explanation:
An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $6830 and his stock in Company B was worth $2600. The stock in company A has increased 20% since last year and the stock in company B has increased 5%. What was the total percentage increase in the investors stock account?
Answer:
15.9
Step-by-step explanation:
Find new values:
6830
(
1
+
0.2
)
=
8196
6830(1+0.2)=8196
2600
(
1
+
0.05
)
=
2730
2600(1+0.05)=2730
Last Year This Year
Stock A 6830 8196
Stock B 2600 2730
Total 9430 10926
Find overall increase:
Find overall increase:
9430
(1+r)=
10926
9430(1+r)=10926
9430
(1+r)9430=
0926
9430
9430
9430(1+r)
=
9430
10926
1
+
r
=
1.158643
1+r=1.158643
r
=
0.158643
r=0.158643
Subtract 1
Final Answer:
15.9
%
Final Answer: 15.9%
Multiply by 100 and round to nearest 10th
Milan is saving money to buy a game. So far he has saved $20, which is four-fifths of the total cost of the game. How much does the game cost?
Answer:the answer is 16
Step-by-step explanation:
:) hi
Answer:25
Step-by-step explanation: Mangekyou Sharingan
Use the quadratic formula to find both solutions to the quadratic equation
given below.
3x - x + 6 = 0
Answer:
3x-x+6=0
2x+6=0
2x=-6
x= -6/2
x=. -4
Quadrilateral ABCD is a rectangle. BD = 6x - 14 and AC = 8x - 20. What is BD?
3
2
4
6
Answer:
4
Step-by-step explanation:
The diagonals are equal length:
[tex]6x - 14 = 8x - 20\\-2x = -6\\x = 3[/tex]
[tex]BD = 6x - 14\\BD = 6 * 3 - 14\\BD = 18 - 14\\BD = 4[/tex]
The length of diagonal BD in rectangle ABCD is 4 units.
RectangleA rectangle is a quadrilateral (has four sides and four angles) in which opposite sides are parallel and equal to each other. All the angles of a rectangle measure 90 degrees.
The diagonals of a rectangle are equal to each other.
AC = BD (diagonals of rectangle are equal)
6x - 14 = 8x - 20
2x = 6
x = 3
BD = 6(3) - 14 = 4 units
The length of diagonal BD in rectangle ABCD is 4 units.
Find out more on Rectangle at: https://brainly.com/question/25292087
Expand using the distributive property -2(2 + 3x)
Answer:
-4-6x
Step-by-step explanation:
Distribute the -2
Answer:
-6x-4
Step-by-step explanation:
Khan academy anyone can help me plz on this
16. During a discount salle, an online video game store sells all puzzle games for $6.00 and all action gernes for
$8.00. Bella plans to spend exactly $19.00 on games from this store.
Which equation represents Bella's purchasing options, where is the number of puzzle games bought and yis
the number of action games bought?
A. (6 + 8) = 404
B. 40+ 62 = 8y
C. 40 +8y=63
D. 6x + 8y = 40
How many terms are in 80.6-3p-q
Answer:
there is 2 terms
Step-by-step explanation:
Answer:
3 terms
Step-by-step explanation
In order to determine the number of terms, count the addition or subtraction signs, then add one. Here, we have two "term separators" and we also have the first term. Therefore, there are three terms.
Find the values of x and y
Can someone help?
Answer:
y=70
x=55
Step-by-step explanation:
In an equilateral triangle, all the angles measure 60 degrees. Knowing this, we can set the following equations:
[tex]60=y-10\\60=x+5[/tex]
[tex]60=y-10[/tex]
Add 10 to both sides
[tex]60+10=y-10+10\\70=y[/tex]
[tex]60=x+5[/tex]
Subtract both sides by 5
[tex]60-5=x+5-5\\55=x[/tex]
I hope this helps!
Answer:
x is 55° & y is 70°.
Step-by-step explanation:
This is an equilateral triangle.
In an equilateral triangle all sides are 60°
So,
1) x+5 = 60
x = 55°.
2) y-10 = 60
y = 70°.
Answer: x is 55° & y is 70°.
Use the information to answer the question.
Molly's hair was 20 inches long. Three years later it was 35 inches long
What was the percent increase, to the nearest hundredth, of Molly's hair length? Enter the answer in the box.
percent
The answer is 75%
This has nothing to do with the problem I just have to write a lot so I can put the answer in
Explain whether the graph represents a function.
Answer:
The vertical line test can be used to determine whether a graph represents a function. ... If we can draw any vertical line that intersects a graph more than once, then the graph does not define a function because that x value has more than one output. A function has only one output value for each input value.
Aaron went shopping for a new camera because of a sale. The store was offering a 10% discount. If the price on the tag was $27, what would be the price after the discount but before tax, to the nearest dollar and cent?
Answer:
24.30
Step-by-step explanation:
10/100=.1
27×.1= 2.70
27-2.70=24.30