Use emlimination to solve the system x-5y=20 and x+3y=-4 for x

Answer:

7.5 pounds

Step-by-step explanation:

you divide 120 by 16 to get how many pounds is needed

Answer:

7.5 pounds because...

Step-by-step explanation: ... it is 7.5 pounds if you divide 120 divided by 16 you would get 7.5 pounds.

Answer:

10 red, 35 blue

Step-by-step explanation:

2/9 of the 45 marbles must be red.

2/9 * 45 = 10

Answer:

10

Step-by-step explanation:

let's make the number of red marbles x

so probability of getting red marbles is x/45

so;.

[tex] \frac{x}{45} = \frac{2}{9} [/tex]

[tex] 45 \times \frac{x}{45} = \frac{2}{9} \times 45[/tex]

[tex]x = \frac{2}{9} \times 45[/tex]

[tex]x = 10[/tex]

so the number of red marbles is 10

Answer:

Choice A x= 16, y= 9√2

Step-by-step explanation:

x= 9+7 =16

y= √9²*2= 9√2

Answer:

x = 10

Step-by-step explanation:

Given

[tex]\frac{2x}{5}[/tex] = 4 ( multiply both sides by 5 )

2x = 20 ( divide both sides by 2 )

x = 10

Answer:

The answer would be 22.

Answer:

39.8

Step-by-step explanation:

for this question, use the Pythagorean theorem which is:

a^2 + b^2 = c^3

a = 35

b = 19

c = the answer

lets solve it:

35^2 +19^2 = c^2

solve the exponents first

1225 + 361 = c^2

1586 = c^2

square root both to find c

(the answer is rounded)

39.824 = c

rounded to nearest 10th:

c = 39.8

Answer:

the answer is 39.8m

Step-by-step explanation:

You divide the pool with the diagonal and you obtain a right angled triangle with its base as 35m and its height as 19m. then using pythagoras theorem, you find the length of the hypotenuse and this is the length of the diagonal of the pool.

Answer:

y=9 7/15

Step-by-step explanation:

y + 3 7/15 = 12 14/15 - 8/15

y + 3 7/15 = 12 14/15

y + 3 7/15 = 12 14/15

   - 3 7/15  - 3 7/15

y             =  9 7/15

Answer:

D - "Following the strand of sugar and slavery leads directly

into the tumult of the Age of Revolutions."

Step-by-step explanation:

Answer:

D - "Following the strand of sugar and slavery leads directly

into the tumult of the Age of Revolutions."

Step-by-step explanation:

Answer:

x=114

Step-by-step explanation:

opposite angles are equal

Answer:

114°

Step-by-step explanation:

114° is opposite to x

opposite angles are equal

x=114°

the other one is 66°,because straight lines add upto 180°, hence 180-114=66°

Answer:

(A) 20 degrees

Step-by-step explanation:

Inside the (G) angle is writen (2x + 10)

2 X 10 = 20

Answer:

The answer would be B

Step-by-step explanation:

x-1=y

Answer:

(C)y=0

Step-by-step explanation:

An exponential function of the form [tex]f(x) = a (b^x) + c[/tex] always has a horizontal asymptote at y = c.

Given our function [tex]y=4^x[/tex]

Comparing with the form,  [tex]f(x) = a (b^x) + c[/tex], we observe that c=0.

Therefore, the exponential function has an asymptote at y=0.

The correct option is C.

Answer:

Sine and cosine — a.k.a., sin(θ) and cos(θ) — are functions revealing the shape of a right triangle. Looking out from a vertex with angle θ, sin(θ) is the ratio of the opposite side to the hypotenuse , while cos(θ) is the ratio of the adjacent side to the hypotenuse .

Step-by-step explanation:

Answer:

A.k.a., sin(total), cos(total) are functions that indicate the direction a triangle is right. Speaking from an angle point, sin(f) is an opposite of a hypotenous ratio, while cos(f) is the equivalent to the hypotenuse ratios

Step-by-step explanation:

Answer is above

Hope this helps.

Answer:

28

Step-by-step explanation:

It is 28 because if you have a graphing table make sure to mark (2,0) and (6,0) first and then mark the seven, after you mark the seven mark (2,7) and (6,7)

Answer:

$36.42

Step-by-step explanation:

3*$9.99=$29.97

5*$1.29=$6.45

3 albums would cost $29.97, and 5 individual songs would cost $6.45.

3 albums would cost $29.97, and 5 individual songs would cost $6.45.

For your birthday you get an i‐Tunes gift card. The total cost for you to buy 3 albums at $9.99 each and then 5 individual songs each worth $1.29 is given by the expression 3(9.99) + 5(1.29).

What is Equation?

Two expressions with an equal sign is called as equation.

Through given data we construct equations,

3 albums at $9.99 is given by

3*$9.99=$29.97

5 individual songs each worth $1.29

5*$1.29=$6.45

Total cost for you to buy 3 albums at $9.99 each and then 5 individual songs each worth $1.29 is given by the expression.

3(9.99) + 5(1.29).

=29.97+6.45

=36.42

#SPJ2

Answer:

89

Step-by-step explanation:

Step-by-step explanation:

Assuming we use only one kind of bread, meat and cheese, we have 3, 2, and 3 options for them respectively. Therefore, the total amount of sandwiches we can make is 3 * 2 * 3 = 18.

Answer:

The unit rate for the pencils ANNA bought is $7.14

The unit rate for the pencils HENDRICK bought is $10.5

The unit rate for the pencils JAMIE bought is $6.87

Jamie, Anna, Hendrick

Step-by-step explanation:

Answer:

She wronged in V1.

Step-by-step explanation:

She write wrongly for the values of length and height. The length of V1 should be 7ft + 4ft which is 11ft and the height is 5ft.

So the volume of V1 is :

V1 = 2ft × 11ft × 5ft

= 110 ft³

Answer:

x = -3   and   y = -4

x + y = -3-4 = -7

Step-by-step explanation:

-4x + 9y = -11 ------------------------------------------------------------------------(1)

-3x + 7y = -9--------------------------------------------------------------------------(2)

multiply through  equation (1) by 3   and multiply through equation(2) by 4

-12x + 27y = -33 -----------------------------------------------------------------------(3)

-12x + 28y   = -36 ----------------------------------------------------------------------(4)

subtract equation (1) from equation (2)

y = -3

substitute y = -3 into equation (2)

-3x + 7(-3) = -9

-3x -21 = -9

add 21 to both-side of the equation

-3x -21 + 21 = -9 + 21

-3x = 12

divide both-side of the equation by -3

-3x/-3 = 12/-3

x = -4

x = -3   and   y = -4

Answer:

$666

Step-by-step explanation:

I think you just need to do 2664×0.25 ( which you can do it on a calculator ) , is

$666

Answer:

666

Step-by-step explanation:

Because u multiply 2664 by .25

Answer:

D

Step-by-step explanation:

Refer to picture.

When graph of y = x is transformed to y = x - 13,

U can visualise it by drawing the before and after transformed graphs to compare in order to deduce the answer.

From the picture, you will realise that when x is unchanged, I'm this case I'm using points x=0 and x=13, the value of the y coordinate in the transformed graph (y = x-13) actually decreased by 13 units as compared to the original graph of y=x.

Hence the graph actually got translated 13 units in the direction of negative y axis which is option D

As per the translation of a graph, the given graph y= x is translated 13 units  to the right.

"The translation of a graph is its rigid movement, vertically or horizontally."

The given equation of the graph is: y = x.

The equation of the translated graph is: y = x - 13.

We know, the translation of a graph from y = f(x) to y = f(x - a) is translating the graph to the right by 'a' units.

Therefore, the given graph y= x is translated 13 units to the right.

Learn more about the translation of a graph here: https://brainly.com/question/21280965

#SPJ3

We need to use this formula:

a(b+c)=ab+ac

[tex]6(4-3w)=6\times4-6\times3w=24-18w[/tex]

Answer: D

Answer:

D will be your answer!

Step-by-step explanation:

I hope this helps!

Answer:

increases

Step-by-step explanation:

edg 2020

Answer:

increases

Step-by-step explanation:

Answer:

Step-by-step explanation:

First add 45 and 78 to find the total weight in grams.

45 + 78 = 123

Then find the weights that will work 1 100, 2 10, 3 1,

Answer:

C)

Step-by-step explanation:

Area of bottom of pool = length  * width

                                   a  = 14 * 6

Answer:

28

Step-by-step explanation:

Consider the expansion:

[tex]$(x+y)^2=\sum_{k=0}^{n} \binom{n}{k}y^{n-k}x^k$$[/tex]

[tex]$ \binom{n}{k}=\frac{n!}{(n-k)!k!}[/tex]

We have

[tex]$\left(x + y\right)^{8}=\sum_{k=0}^{8} \binom{8}{k} \left(y\right)^{8-k} \left(x\right)^k[/tex]

I'm sorry but I will not write and solve everything, typing LaTeX takes time. But that's the idea:

For [tex]k=0[/tex]

[tex]$\binom{8}{0} \left(y\right)^{8-0} \left(x\right)^{0}=\frac{8!}{(8-0)! 0!}\left(y\right)^{8} \left(x\right)^{0}=y^{8}[/tex]

For [tex]k=2[/tex]

[tex]$\binom{8}{2} \left(y\right)^{8-2} \left(x\right)^{2}=\frac{8!}{(8-2)! 2!}\left(y\right)^{6} \left(x\right)^{2}=28 x^{2} y^{6}[/tex]

[tex](x+y)^8={x}^{8} + 8{x}^{7}y + 28{x}^{6}{y}^{2} + 56{x}^{5}{y}^{3} + 70{x}^{4}{y}^{4} + 56{x}^{3}{y}^{5} + 28{x}^{2}{y}^{6} + 8x{y}^{7} + {y}^{8}[/tex]

Answer:

y = 2/3x

Step-by-step explanation:

The first step is to find the slope

Pick two points on the line (0,0) and (3,2)

m = (y2-y1)/(x2-x1)

    = (2-0)/(3-0)

    = 2/3

The y intercept is 0

Using the slope intercept form

y =mx+b  where m is the slope and b is the y intercept

y = 2/3 x +0

y = 2/3x

Answer:

1/3x

Step-by-step explanation:

trust me

Answer:

C

Step-by-step explanation:

The triangle is reflected across the y-axis and moved down 3 units.

Answer:

The correct option is:

A) L'' (-4 , -4) , M'' (-1 , -4) , N'' ( -1 , 0) , O'' (-4 , 0)

Step-by-step explanation:

The following are the vertices of a rectangle LMNO

L (-4 , 6)

M (-1 , 6)

N (-1 , 2)

O (-4 , 2)

First we have to reflect it across x-axis

When we reflect a shape across x-axis, the x components of the points remain the same while y components change their signs. After reflection:

L' (-4 , -6)

M' (-1 , -6)

N' ( -1 , -2)

O' (-4 , -2)

After we translate it up by two units, we add +2 to y components of each reflected point.

L'' (-4 , -4)

M'' (-1 , -4)

N'' ( -1 , 0)

O'' (-4 , 0)

Hence, the correct option is A