Answer:
c
Step-by-step explanation:
−5x + y = −3
3x − 8y = 24
Answer:
x = 0
y = -3
Step-by-step explanation:
-5x + y = -3 --------------(I)
3x - 8y = 24 ------------(II)
Multiply the equation (I) by 8
(I)*8 - 40x + 8y = -24
(II) 3x - 8y = 24 {Add and y will be eliminated}
-37x = 0
x = 0
Plugin x = 0 in equation(I)
-5*0 + y = -3
0 + y = -3
y = -3
Answer:
- 5x + y =-3 ......1
3x -8y = 24.........2
eqn 1 is multiply by 8 .we get -40 x +8y=-24 .....3
-40 x +8 y =-24 ...........3
3 x - 8y = 24 ......... 2
·································
-37 x +0 = 0
··························
x =0
put x = 0 in equation 2
3 x -8 y =24
3×0 -8 y = 24
0 -8 y=24
-y =24÷8
-y =3
y = -3
ans ;
x = 0
y = -3
Step-by-step explanation:
Anyone know the answer to this?
Answer:
hello again
Step-by-step explanation:
the radius of the circle is 6mm
for having the circumference we need diameter
for having diameter we should multiply in 2
so:
[tex]d = 2r \\ \\ d = 2 \times 6 = 12mm \\ v = \pi \: d \\ v = 12\pi \: mm[/tex]
i hope this is the answer
The area of a rectangular pool is 72 square yards. One side of the pool is 6 more than 3 times the length of the other side. What are the dimensions of the pool?
Answer:
Step-by-step explanation:
PLZ BE HONEST my cousin keeps on putting on a fid about how he looked soo ugly. there was this kid at his school that said U G L Y you ain't got no alibi. I laughed when he told me, and now he won't put it off.
Answer:
Ok, first of all, Nobody is ugly don't listen to the haters. But I feel like yr cousin can glow up. He just needs to get rid of the glasses and get a new hairstyle, workout, and dress better!
On a bicycle, Caitlyn rides for 4 hours and is 46 miles from her house. After riding for 7 hours, she is 79 miles away. What is her rate?
Answer:
Caitlyn's average is roughly 11.4.
Step-by-step explanation:
You get this by dividing 46 by 4, which gets you 11.5.
You then divide 79 by 7, that equals 11.3, rounded.
The number in-between the two numbers is 11.4.
Hope this helps!
Pls mark brainliest! ;)
1. -9x + 1 = -80
What is the value of x
please help I suck at 2 step equations
and answer the questions below as well, please
find the value of X
2. x/8 = 11
3. 10 - 6x = -104
4. -3x = 18
5. x/-4 = 6
6. -9x - 13 = -103
7. 8 + x/-4 = 5
8. 5 - x = 20
THANK YOU
Answer:
1. x=9
2. x=88
3. x=-15.7
4. x=-6
5. x=-20
6. x=10
7. x=-12
8. x=25
Hope this helps
HELP PLZ PLZ PLZ PLZ
IT IS A PIC
Answer:
A
Step-by-step explanation:
just count lol
it's 14 cubic units.
x greater than, less than, or equal to 73 degrees?
The measure of an angle is nine times the measure of its complementary angle. What is the measure of each angle?
Answer:
the angle is 81 and it's complementary angle is 9
let X be the angle
let 90-x be it complementary angle
so X=9(90-x)
X=810-9x
810=10x
X=810/10
X=81
and complementary angle 90-x which is 90-81 is equal to 9...
WHAT IS 2x^2 - 70 = 4x ?!? this is for solving quadratic equations by factoring ! i don't understand it : (
Answer: ☁️ x = 7,-5. ☁️
Hope it helps.
Explanation: Have a nice day!~ ￣▽￣❤️
A tv costs $215 and has a 30% increase. What is the amount of increase? Show your work
i well try to give brainlist for first to answer correctly
Answer:
The price increased by 64.5, which makes a total of 279.5
Step-by-step explanation:
215*0.30 = 64.5
215 + 64.5 = 279.5
0.30 = 30% of 100
When you multiply by 0.30 you get 30%, or with any decimals, like multiply by 0.50 to get 50% of something, etc.
Helpppppp plsssss......,,,??
Answer:
25
Step-by-step explanation:
square 7 and 24 to get 625. Then square root it to get 25
The measure of one interior angle of a parallelogram is 42 degrees more than twice the measure of another angle. Find the measure of each angle.
Answer:Measure of the angles are 50, 130, 50 & 130
Step-by-step explanation: seen from the diagram, adjacent angles are supplementary and opposite angles are equal.
enter image source here
Let one angle be A
Other adjacent angle b will be 180-a
Given b = 2a + 30. Eqn (1)
As B = 180 - A,
Substituting value of b in Eqn (1) we get,
2
A
+
30
=
180
−
A
∴
3
a
=
180
−
30
=
150
A
=
50
,
B
=
180
−
A
=
180
−
50
=
130
Measure of the four angles are
50
,
130
,
50
,
130
How many do you want to bet nobody’s not gonna held me on this question
Answer:
-209
Step-by-step explanation:
Manny is paid semimonthly. His semimonthly salary is $1,239. What is his annual salary?
Answer:
Semimonthly is twice a month. There are 12 months in a year, which means Manny will get paid 12 x 2 = 24 times a year.
His annual salary is:
$1,239 x 24 = $29,736
Compare Texas to Carolina. Write the answer in scientific notation. Texas= 2.5x10 to the power of 5. Carolina= 1.2x10 to the power of 3.
Answer:
Texas is 2.08333 * 10^2 times the size of Carolina.
Step-by-step explanation:
Given :
Given that:
Texas= 2.5x10^5
Carolina = 1.2x10^3
Comparing the size of Texas and Carolina
Texas / Carolina
(2.5 * 10^5) ÷ 1.2 * 10^3
(2.5/1.2) * 10^5-3
2.08333 * 10^2
Hence, Texas is 2.08333 * 10^2 times the size of Carolina.
Which inequality describes the possible values of x?
B
F
12
50°
с
E
G
(5x-10)
10
D
A. 2
O
B. 2
C. 2
D. 2 < x < 22
Answer:
Step-by-step explanation:
ive done this before and the answer to the equation is c and also truss me on this if you want. I wouldnt
The inequality that describes the possible value of x is 2< x < 22.
What is inequality?In mathematics, "inequality" refers to a relationship between two expressions or values that is not equal to each other. Therefore, inequality emerges from a lack of balance.
Given that ∠A = 50°
AB ≈ DE ≈ EF
BC = 12
CD = 10
And the ∠E = (5x - 10)°
From the Graph, we can see that Angle A is the alternate angle to angle G
Alternate angles are the angles that occur on opposite sides of the transversal line. We can easily spot two interior alternate angles by drawing Z. The value of alternate angles is equal.
thus, ∠A = ∠E
50° = 5x -10
5x = 60
x = 12
Therefore, from the given options the value of x lies in the inequality 2 < x < 22.
Learn more about inequality here:
https://brainly.com/question/29166625
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Determine whether you can construct many, one, or no triangle(s) with each description.
An isosceles triangle with side lengths of 6 cm, 6 cm, and 9 cm
One Triangle
Many Triangles
No Triangles
A right triangle with side lengths of 9 cm, 12 cm, and 15 cm
One Triangle
Many Triangles
No Triangles
A scalene triangle with angle measures of 140° and 20°
One Triangle
Many Triangles
No Triangles
____________________________________________________________________
it looks weird but it's basically asking how many triangles you can make with whatever description it gives- yea im stu.pid and dont understand it
Answer:
First one is one triangle.
Second one is one triangle.
Third one is no triangle (I think, I've never studied this kind of math before so I'm kinda stumped)
a large painting has a length of 18 inches and width of 12 inches. If each dimension is reduced by x inches to make the ratio of length to width 5 to 3, what is the value of x
Answer:
The value of x = 3.
Step-by-step explanation:
The ratio between length and width is given by:
[tex]\frac{L}{W}=\frac{5}{3}[/tex]
Where:
L represents the new length W represents the new widthNow, we know that each dimension is reduced by x inches, it means:
[tex]L=18-x[/tex]
[tex]W=12-x[/tex]
Then, we will have:
[tex]\frac{18-x}{12-x}=\frac{5}{3}[/tex]
Finally, we just need to solve it for x.
[tex]3(18-x)=5(12-x)[/tex]
[tex]5x-3x=60-54[/tex]
[tex]2x=6[/tex]
[tex]x=3[/tex]
Therefore, the value of x = 3.
I hope it helps you!
Explain how to find the slope and y-intercept by just looking at the equation
y = x - 2. Then graph the equation and verify your answers.
Evaluate rg + 2d when r = 3, g = 5, and d = 2
Answer:
rg+2d= 12
Step-by-step explanation:
(3+5)+2(2)
8+4=12
I need help with this equation for math
Answer:
The answer would be B
Step-by-step explanation:
the y-intercept would be a postive 4 and because it's a negative slope, it would rule out all of them except B.
Answer:
y = -1/2x +4
Step-by-step explanation:
We have two points so we can find the slope
m = (y2-y1)/(x2-x1)
= ( 0-4)/(8-0)
= -4/8
= -1/2
We know the y intercept is 4
The slope intercept form of the line is
y = mx+b where m is the slope and b is the y intercept
y = -1/2x +4
what is a real life example of a parabola
Answer:
A banana could be one
Step-by-step explanation:
3
A few friends went bowling. The scores
are given below. Use the scores to
calculate the range of the data. *
(1 Point)
104, 117, 104, 136, 189, 109, 113, 104
Answer:
The range here is 85
Step-by-step explanation:
Here, we want to calculate the range of the data
Mathematically, the range is defined as the difference between the lowest value and the highest value in the dataset
From the given data points, the highest value is 189, while the lowest value is 104
So the range is the difference between the two which is;
189-104 = 85
About Carrier culture initially contains 2500 bacteria and doubles every half hour
Answer:
A bacteria culture initially contains 2500 bacteria and doubles every half hour. The formula for the population is p(t)=2500e^(kt) for some constant k. Find the size of the bacterial population after 100 minutes. Find the size of the bacterial population after 4 hours.
Step-by-step explanation:
Answer:
1. 10000 bacteria
2. 640000 bacteria
Step-by-step explanation:
2500 bacteria: 30 minutes
x bacteria: 60 minutes
The bacteria gets doubled twice
2500*2*2=10000
x bacteria:240 minutes
The bacteria gets doubles 8 times
2500*2*2*2*2*2*2*2*2= 640000
What is the unit rate for the ratio 288Points/6 Games
how does a fraction model help you
Answer:
Fraction models can help clarify ideas that are often confused in a purely symbolic mode and construct mental terms that help them to perform fraction tasks meaningfully.
Step-by-step explanation:
Mohamed wants to buy a television that costs $800, including taxes. To pay for the television, he will use a payment plan that requires him to make a down payment of $200, and then pay $65 each month for 10 months. What is the percent increase from the original cost of the television to the cost of the television using the payment plan?
Answer:
6.25%
Step-by-step explanation:
I'm simply returning the favor.
If the down payment is $200, then we can subtract:
$800 - $200 = $600
Then we can find the "rent" times ten, then subtract it from the $600 left to pay.
$65*10 = $650
Now here is the hard part. We know that 600 < 650. So we need to subtract 650 from 600.
$650 - $600 = $50
Now we need to find how much more Mohamed paid than the original price.
$850 is _____% more than $800.
$850 is 106.25% more than $800.
Subtract 100% to get the difference.
6.25% is your answer.
Hope this helps. Have a nice day.
there are 13 boys and 10 girls in the classroom. What is the ratio of boys to girls
Answer:
13 to 10 13:10 13/10 all the same.
it can't be simplified because 13 can't be made smaller in equal proportions to 10.
Step-by-step explanation:
Answer:
13 to 10
Step-by-step explanation:
I haven't done this since 2nd grade
If the middle term of a quadratic trinomial is negative and the last term is negative, then
the sum of the factors for the middle term must be __
Answer:
Negative
Step-by-step explanation:
Years of Factoring:
What the problem tells us is that we have:
X^2 - 4x - 3
or something along these lines. If we factor this we get:
(X-4)(X+1)
The bigger inside factor has to be negative for these problems, because the third term is negative.
The sum of the middle term must give a negative value.
What is a quadratic equation?A quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.
Given that If the middle term of a quadratic trinomial is negative and the last term is negative then the sum of the middle terms must give a negative value.
What the problem tells us is that we have:
x² - 4x - 3
Something along these lines. If we factor this we get:
(x-4)(x+1)
The bigger inside factor has to be negative for these problems because the third term is negative.
Therefore, the sum of the middle term must give a negative value.
To know more about quadratic equations follow
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