find 3 ordered pairs (x,y) that satisfy both equations below
[tex]5x-6y=1[/tex]
[tex]15x-18y=3[/tex]

Answer:

$84

Ruby started with $84 before purchasing the school supplies.

Step-by-step explanation:

$32 + $4 + $18 + $30 = $84

_________

[tex] \: [/tex]

[tex] \frac{j}{3} = 4.5[/tex]

[tex]j = 4.5 \times 3[/tex]

[tex]j = \bold{13.5}[/tex]

Work Shown:

[tex]n(A \cup B) = n(A) + n(B) - n(A \cap B)\\\\26 = n(A) + 16 - 5\\\\26 = n(A) + 11\\\\n(A) + 11 = 26\\\\n(A) = 26-11\\\\n(A) = 15\\\\[/tex]

V=Bh (with B being the area of the base).

h=V/B, or 456/24, or 19.

Answer:

P = -3r -5t + 25

r(-2): P = -5t + 31

r(-5): P = −5t + 40

r(5): P = −5t + 10

t(4): P = −3r + 5

t(-4): P = −3r + 45

t(8): P = −3r − 15

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Answer:

  1.3854 liters

Step-by-step explanation:

1000 cm³ = 1 liter

1385.4 cm³ = 1.3854 liters

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Answer:

  $1 per person

Step-by-step explanation:

The per-person cost (x) can be found from the proportion ...

  x/(0.5 lb) = $8/(4 lb)

Multiplying by 0.5 gives ...

  x = (0.5 lb) × ($8 /(4 lb)) = $1 . . . . . . units of lb cancel

The cost per person will be $1.

Answer:

$22.55

Step-by-step explanation:

To find the tax due divide 8.2% by 100 to convert it into a decimal which equals to .082 . Next multiply 275 by .082 which gives you $22.55.

Answer:

68*

Step-by-step explanation:

90-22=68

Step-by-step explanation:

3x - y = -11

(-15) + 4 is 11 hence RHS = LHS

Answer:

2,300

Step-by-step explanation:

the number in the tens digit is less than 5 so the 3 in the hundreds place does not round up.

Applying the integral formula, it is found that the expected number of coupons a customer will use is of 1.83.

The probability density function is given by:

[tex]f(x) = \frac{4x + 3}{27}, [0,3][/tex]

The integral formula for the expected value is:

[tex]E(x) = \int_0^3 xf(x) dx[/tex]

Hence, applying the formula for f(x) given in this problem, the expected number of coupons a customer will use is:

[tex]E(x) = \int_0^3 \frac{4x^2}{27} + \frac{x}{9} dx[/tex]

[tex]E(x) = \frac{4x^3}{81} + \frac{x^2}{18}|_{x = 0}^{x = 3}[/tex]

[tex]E(x) = 1.83[/tex]

The expected number of coupons a customer will use is of 1.83.

A similar problem, which also involves the calculation of the expected value via integral, is given at https://brainly.com/question/14263236

Answer:

No

Step-by-step explanation:

Plug the coordinates into the given inequality

2(2) + 3(2) ≤ 10(2) + 4(2) < 10

4 + 6 ≤ 20 + 8 < 10

10 ≤ 28 < 10

(2,2) is not a solution to this system of inequalities since 28 cannot be less than 10.

Answer:

The answer would be 1.17.

Step-by-step explanation:

Answer:

[tex]5[/tex]

Step-by-step explanation:

answer= 5

2+1+2=5

2=1+1

1

2=1+1

5 one

thx for following me

Answer:

x = -5/3, y = -1 or [tex](-\frac{5}{3}, -1)[/tex]

Step-by-step explanation:

Solving systems of linear equations using process of elimination involves eliminating one of the variables (and its coefficient) in order to solve the other variable either through addition or subtraction. However, there may be other mathematical operations necessary before one of the variables can be eliminated.  

Equation 1:   3y - 6x = 7

Equation 2:  -4y - 3x = 9          

(-2)(-4y - 3x) = 9 (-2)

8y + 6x = -18

  8y + 6x = -18

+ 3y - 6x = 7

11y = -11

[tex]\frac{11y}{11} = \frac{-11}{11}[/tex]

y = -1

-4(-1) - 3x = 9      

    4 - 3x = 9

    4 - 4 - 3x = 9 - 4

   - 3x = 5

[tex]\frac{-3x}{-3} = \frac{5}{-3}[/tex]

[tex]x = - \frac{5}{3}[/tex]

Verify whether the values for x and y are correct by substituting their values into both equations:

x = -5/3, y = -1

Equation 1:   3y - 6x = 7

[tex]3(-1) - 6(-\frac{5}{3}) = 7[/tex]  

-3 + 10 = 7

7 = 7 (True statement).

Equation 2:  -4y - 3x = 9          

-4(-1) - 3 (-5/3)  = 9          

[tex]-4(-1) - 3(-\frac{5}{3}) = 9[/tex]

4 + 5 = 9

9 = 9  (True statement).

Therefore, x = -5/3 and y = -1 are the solutions to the given systems of linear equations.  

Answer:

slope = 2

Step-by-step explanation:

Calculate the slope m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (5, - 1 ) and (x₂, y₂ ) = (3, - 5 )

m = [tex]\frac{-5-(-1)}{3-5}[/tex] = [tex]\frac{-5+1}{-2}[/tex] = [tex]\frac{-4}{-2}[/tex] = 2

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Answer:

  x = 22.5°

Step-by-step explanation:

The interior angle at E is (180 -4x), the supplement of the exterior angle there, 4x. The sum of angles 2x and (180-4x) will be equal to 6x, because alternate interior angles at transversal BE are congruent:

  2x +(180 -4x) = 6x

  180 = 8x . . . . . . . add 2x and simplify

  22.5 = x . . . . . . . divide by 8

The value of x is 22.5°.

r = -6

Step-by-step explanation:

The slope of a line is defined as

[tex]m = \dfrac{y_2 - y_1}{x_2 - x_1}[/tex]

Let [tex]P_1(-4, 2)[/tex] and [tex]P_2(4, r)[/tex]. Since m = -1, we can write

[tex]-1 = \dfrac{r - 2}{4 - (-4)} \Rightarrow -1 = \dfrac{r - 2}{8}[/tex]

or

[tex]r - 2 = -8 \Rightarrow r = -6[/tex]

Answer:

116

Step-by-step explanation:

you can use variables

a+b=110

a+c=112

a+d=113

b+c=118

b+d=121

add up the weights and you get 574 kg (you need to find c+d)

3a+3b+2c+2d=574

a+b+c+d = 230 as given then you multiply by 3 so you can cancel out 3a and 3b and subtract 690-574 because we multiplied by 3

you are left with c+d=116

Answer:

X=33

Step-by-step explanation:

Hope this helps!!!

Answer:

Graph 1 is the answer

Answer:

68/3 in decimal also Know as 22.67

explanations:

STEP 1: you first of all convert to a fraction 7 2/5=107/15

STEP 2: so the next one 5 2/3 = 17/3

STEP 3: so the next one 9 13/15= 148/15

so after that we add all the answers from step 1-3

which is : 107/15 + 17/3 + 148/15= 68/3.

hope you understand with this few explanations of mine .

pls follow.

thanks.

Answer:

refer to the picture attached for steps

Step-by-step explanation:

hope it helps

d option

Answer:

58

Step-by-step explanation:

35 - 4 (5 - 9) + 7

Opening Brackets

= 35 - [4 x (-4) ] +7

= 35 + 16 + 7

Answer:

The answer is -2/2x=1

Step-by-step explanation:

Its the second graph on edge

Answer: it’s 2 and 6

Step-by-step explanation:

Answer:

$12,000

Step-by-step explanation:

[tex]p(({1 + i})^{n} - 1)[/tex]

[tex]26376( ({1 +.0499 })^{8} - 1) \\ = 12000[/tex]

Answer:

10:5

Step-by-step explanation:

The simplest form of the ratio 10 seconds to 5 min will be;

⇒ 1 : 30

What is mean by Ratio?

A ratio indicates how many times one number contain in another number. The ratio of two number is written as x : y, which is equivalent to x/y.

Where, x and y are individual amount of two quantities.

And, Total quantity gives after combine as x + y.

Given that;

The ratio is,

⇒ 10 seconds to 5 minutes.

Now,

Since, The ratio of two numbers has always same units.

So, We change 5 minutes into seconds as;

Since, 1 minutes = 60 seconds

Hence, 5 minutes = 5 x 60 seconds

                            = 300 seconds

Thus, The ratio becomes,

⇒ 10 seconds to 300 seconds

⇒ 10 : 300

⇒ 10 / 300

⇒ 1 / 30

⇒ 1 : 30

Thus, The simplest form of the ratio 10 seconds to 5 min will be;

⇒ 1 : 30

Learn more about the ratio visit:

https://brainly.com/question/25927869

#SPJ2

Answer:

The answer to your question is (7.5.4