what is the value of the expression below when x=8 and y=3


[tex]8x - 9y[/tex]

​

Answer:

-1/7

Step-by-step explanation:

11x-1 = 1+25x

x= -1/7

Answer: B

Step-by-step explanation:

x = van

y = bus

12x + 9y = 456

1x + 2y = 83

(Simplify equations)

9y = -12x + 456

y = -1.3x + 456/9

2y = -x + 83

y = -1/2x + 41.5

(Find x)

-1.3x + (456/9) = -.5x + 41.5

0.8x = 9.16

(Round)

x = 11

(Find y by plugging x in)

y = -1/2(11) + 41.5

y = -5.5 + 41.5

y = 36

(Check)

12(11) + 9(36) = 456

132 + 324 = 456

1(11) + 2(36) = 83

11 + 72 = 83

Answer:

$24750

Step-by-step explanation:

Given data

Principal= $45000

Time=5 years

Rate= 11%

Let us apply the simple interest expression

SI= PRT/100

substitute

SI= 45000*11*5/100

SI= 2475000/100

SI= $24750

Hence, Craig would have paid $24750

Answer:

A 3^7

Step-by-step explanation:

I already helped you with this :P

Can i have brainliest again?!

Answer:

A: M= 100 - w=20 = M-0

 ( if he has 100 dollars n he buys a 5 dollar coffee every week then he will have 0 dollars left over in 20 weeks )

B.  6 weeks

Answer:

A. m = 100 - 5w

B. 17 weeks

Step-by-step explanation:

1. 50 degree angle I believe

2. 150 degree angle

3. 45 degree angle

Sorry if this doesn't help but, with no context about the answers they have given you I can't fully help. Try using a protractor like this down below.

Have a good day!

Answer:

a. -24w^6/y^7z^3

Step-by-step explanation:

i hope this helps :)

Answer: 9 months

Explaination: First subtract the total price which is $65 and subtract it by the final amount of money he had which is $38. Doing this you should get $27. To find the number of months divide it by 3 and you should get 9 months! Hope this helps! :)

Answer:

9 months

Step-by-step explanation:

$65 - $38 = $27 (the amount of money he had withdrew.)

27 ÷ 3 = 9

(since every month Paul withdrew $3.)

So, Paul withdrew $27 from his original balance of $65 to get his ending balance of $38. That means, if Paul withdrew $3 each month, he withdrew money for 9 months.

I would appreciate brainliest, if not that's ok!

Answer:

Hoping someone else can answer with more confidence, but here's what I have:

on the left hand side:

upper is partial/penumbral lunar eclipse

lower is total solar eclipse

on the right hand side:

on the top: it's impossible for the moon to be behind the sun, so I'm not sure what they want there

middle is total solar eclipse

bottom is partial/penumbral lunar eclipse

Hope I helped at least a little

Answer:

A

Hope it helps and i don't know how to explain

Answer:

35 / 4 = 8.75

35 - 8.75 = 26.25

I hope you a great life. Till we meet again, Farewell!

Answer:

Slope, sometimes referred to as gradient in mathematics, is a number that measures the steepness and direction of a line, or a section of a line connecting two points, and is usually denoted by m. Generally, a line's steepness is measured by the absolute value of its slope, m. The larger the value is, the steeper the line. Given m, it is possible to determine the direction of the line that m describes based on its sign and value:

A line is increasing, and goes upwards from left to right when m > 0

A line is decreasing, and goes downwards from left to right when m < 0

A line has a constant slope, and is horizontal when m = 0

A vertical line has an undefined slope, since it would result in a fraction with 0 as the denominator. Refer to the equation provided below.

Slope is essentially change in height over change in horizontal distance, and is often referred to as "rise over run." It has applications in gradients in geography as well as civil engineering, such as the building of roads. In the case of a road the "rise" is the change in altitude, while the "run" is the difference in distance between two fixed points, as long as the distance for the measurement is not large enough that the earth's curvature should be considered as a factor. The slope is represented mathematically as:

m =

y2 - y1

x2 - x1

Answer:

b = 65

Step-by-step explanation:

b is the y- intercept

if you start to graph 6x from the two points that are already given then it'll find the y-intercept which is b

here's the graph

Answer:

The = sign

Step-by-step explanation:

[tex]\frac{7}{8} -\frac{9}{12} =\frac{1}{8}[/tex]

1/8 = 1/8

Answer: =

Step-by-step explanation:

[tex]\frac{7}{8}-\frac{9}{12} ?\frac{1}{8}[/tex]

We need to find a common denominator for the two

which will be 24

But we need to multiply the numerators as well to change them.

[tex]\frac{7}{8}(\frac{3}{3})-\frac{9}{12} (\frac{2}{2} )?\frac{1}{8}\\\frac{21}{24}-\frac{18}{24}? \frac{1}{8}\\\frac{3}{24} ?\frac{1}{8}\\Simplify\\\frac{1}{8} =\frac{1}{8}[/tex]

Answer:

1. You can tell because every y value divided by its corresponding 3 value is 1/3, except 0 because 0 divided by 0 is 0.

2. Samuel is incorrect because when his sister's age is divided by his age, it differs every year.

(Example: 5/10 ≠ 10/15)

Answer:

Its D

Step-by-step explanation:

Answer:

area of triangle =1/2×perpendicular×base

35m²×2=(g-11)(g-8)

70=g(g-8)-11(g-8)

70=g²-8g-11g+88

70=g²-19g+88

0=g²-19g+88-70

0=g²-19g+18

g²-18g-g+18=0

g(g-18)-1(g-18)=0

(g-18)(g-1)=0

either

g=18

or

g=1

Step-by-step explanation:

base=18-8=10m

perpendicular=18-11=7m

The dimensions of the polygon in the shape of right angle triangle is 10 m by 7 m.  

The area of the right angle triangle is the space occupied by it on the two-dimensional plane.

The area of the right angle triangle is half of the product of base and height.

[tex]A=\dfrac{1}{2}bh[/tex]

Here, (b) is the base of the triangle and (h) is the height.

The area of the polygon is 35 m². The height of the triangle is (g - 11) m and base is (g - 8) m. Thus, using the above formula,

[tex]A=\dfrac{1}{2}bh\\35=\dfrac{1}{2}(g-11)(g-8)\\70=g^2-8g-11g+88\\0=g^2-19g+18\\[/tex]

On factorizing above equation,

[tex]0=(g-18)(g-1)\\g=18,1[/tex]

Taking the bigger root, the height of the polygon is,

[tex]h=g-11)\\h=18-11\\h=7\rm\;m[/tex]  

The base of the polygon is,

[tex]b=(g-8)\\b=18-8\\b=10\rm\;m[/tex]

Hence, the dimensions of the polygon in the shape of right angle triangle is 10 m by 7 m.  

Learn more about the right angle triangle here;

https://brainly.com/question/17264112

Answer: x< 2

Step-by-step explanation: -2x +6 < -3x +8

-2x +3x < 8-6

Answer:

no the solution would be (-2, -8)

Step-by-step explanation:

i graphed both of the equations and found the solution <33

Answer:

(-2,-8) is correct

Step-by-step explanation:

4x = y

5x +2 = y

4x = 5x +2

-2 = x

y = 5×-2 + 2

=-8

( x , y )

Answer:

$3572

Step-by-step explanation:

Answer:

C.) 3572

Step-by-step explanation:

I Just took the test

Answer:

Step-by-step explanation:

y is always (1/3) of x.

Thus, if x = 0, y = 0; if x = 1, y = (1/3)(1) = 1/3, and so on.  The corresponding ordered pairs are (0, 0), (1, 1/3), (-2, -2/3)

Answer:

B, y=2x

Step-by-step explanation:

Because the x is doubling Every time you go up the line

Answer:

Step-by-step explanation:

You may invent a value for x, substitute that value into the given equation and thereby calculate y:

If 7x - 4y = -5 and x = 0, then -4y = -5 and y = 5/4.  The corresponding ordered pair is (0, 5/4).  Other x values may be chosen at random and the same operations performed so as to find other possible ordered pairs corresponding to 7x -4y = 5.

Answer:

391.5 in²

Step-by-step explanation:

SA = 2(9)(10) + 9(10) + 13.5(9)

SA = 180 + 90 + 121.5

SA = 391.5

Answer: The Answer Would Be D

Answer:

1) m∠AB'C = 41°

2) m∠BAC = 49°

3) m∠B'AC = 49°

4) m∠ACB = 90° Given

5) m∠ACB' = 90°

6) [tex]\overline {AB'}[/tex] = 24

7) Isosceles triangle

8) True

Step-by-step explanation:

Given that triangle ΔABC, is the reflection of ΔAB'C, and given that a reflection is a rigid transformation, we have;

1) ΔABC ≅ ΔAB'C Given

∴ m∠AB'C ≅ m∠ABC given that Corresponding Parts of Congruent Triangles are Congruent (CPCTC)

m∠AB'C = m∠ABC by the definition of congruency

∴ m∠AB'C = m∠ABC = 41°

2) Similarly, we have;

m∠BAC = 180° - (90° + 41°) = 49° Given the sum of interior angles of a triangle theorem

m∠BAC = 49°

3) m∠BAC = m∠B'AC by CPCTC

∴ m∠B'AC = m∠BAC = 49° by transitive property

m∠B'AC = 49°

4) m∠ACB = 90° Given

5) ∴ m∠ACB' = 90° given that the sum of angles on a straight line is 180°

6) [tex]\overline {AB}[/tex] = 24 Given

[tex]\overline {AB}[/tex] ≅ [tex]\overline {AB'}[/tex]  given that ΔABC ≅ ΔAB'C and CPCTC

[tex]\overline {AB}[/tex] = [tex]\overline {AB'}[/tex]

[tex]\overline {AB'}[/tex] = [tex]\overline {AB}[/tex] = 24

[tex]\overline {AB'}[/tex] = 24

7) In ΔABB', [tex]\overline {AB'}[/tex] = [tex]\overline {AB}[/tex] = 24 therefore, ΔABB' has two sides equal and ΔABB' Is an isosceles triangle

8) True, the angles opposite the congruent sides are the base angles of the isosceles triangle and they are therefore congruent

Answer: -5, 1

Step-by-step explanation: