Find the values of x and y by writing two equations and solving the system of equations.

Step by step:

A:

2x+8=-3.5x+19

2x+3.5x=19-8

5.5x=11

x=2

B:

9(x-2)=7x+5

9x-18=7x+5

9x-7x=5+18

2x=23

x=11.5

C:

3(3x+2)-2x=7x+6

9x+6-2x=7x+6

7x+6=7x+6

No solution

x to y can be expressed as a fraction this way: x/y.

Let x = 12

Let y = 18

12/18

We can now reduce to lowest terms.

Dividing 12 and 18 by 6, we get 2/3 as the final answer.

The simplified fraction is 2/3. This means that the ratio of 12 to 18 can be expressed as 2/3. It indicates that for every 2 units of the first quantity (12), there are 3 units of the second quantity (18). Simplifying the fraction ensures that there are no common factors other than 1 between the numerator and the denominator, making it the simplest representation of the ratio.

To express the ratio 12 to 18 as a fraction in simplest form, we can divide both numbers by their greatest common divisor (GCD). The GCD of 12 and 18 is 6. By dividing both numbers by 6, we simplify the fraction to its simplest form:

12 ÷ 6 = 2

18 ÷ 6 = 3

Thus, the simplified fraction is 2/3. This means that the ratio of 12 to 18 can be expressed as 2/3. It indicates that for every 2 units of the first quantity (12), there are 3 units of the second quantity (18). Simplifying the fraction ensures that there are no common factors other than 1 between the numerator and the denominator, making it the simplest representation of the ratio.

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Answer:

After 20 days, the two runners will have run the same number of miles

Step-by-step explanation:

The problem can be solved by using equations. However, we'll approach the solution by using pure reasoning and logic, besides calculations.

The first runner has already run 15 miles this month and plans to run 2 1/2=2.5 miles per day for the rest of the month.

The other runner has not yet run and plans to run 3 1/4 = 3.25 miles per day for the rest of the month. Since his running rate is greater than the other runner, they will both eventually have the same number of miles.

The difference in their running rates is 3.25 - 2.5 = 0.75 miles per day. Since the current difference between them is 15 miles, the second runner needs to run for 15 / 0.75 = 20 days.

After 20 days, the two runners will have run the same number of miles

Answer:

No she should add extra lengths

Step-by-step explanation:

The difference between scaled copy  and jada drawing is that it is in the ratio

8:4

2:1

that is the scaled copy is twice as large as the jada drawing itself.

So every dimension is doubled or made twice as large as the initial measurement. Andre should not add 4 units to all sides instead the drawing is made twice as large . It will serve the same purpose of enlarging the drawing while maintaining its shape. If extra mesurements are added the drawing will be changed.

Answer:

1/8n<3

Step-by-step explanation:

The letter "n" represents the number. Less than or equal to is represented by "<" but with a line under it.

Answer:

1/8n<3

Step-by-step explanation:

Answer:

168 is the change in population

Step-by-step explanation:

well if u think about it all u really have to do is take 28×6 and it would help u find the change in population

Answer:

The total change is -168.

Step-by-step explanation:

The deer population changed 6 times, and it decreased by 28 each time, so the equation is:

6 times -28 (because the population is decreasing) = -168

Hope this helps :)

Answer:

$32.65 is the answer.

Step-by-step explanation:

First, we must calculate 7.25% of 30.45.

30.45 x 0.0725 = $2.20

Now, we must add this to the original price

$30.45 + $2.20 = $32.65

Therefore, $32.65 is the total cost of his purchase.

Hope this helps! :)

Answer:

Step-by-step explanation:

before tax = $30.45

tax sales = 7.25%

total cost = $30.45 x 1.0725

               = $32.66

Answer: 22

Step-by-step explanation: I took the test

Answer:

22

Step-by-step explanation:same but in the past

The rewritten form of the number 2.49 x 10^4 divided by 3.0 x 10^2 in scientific notation as required in the task content is; Choice A; 8.3 × 10¹

According to the task content, it follows that the result of the quotient is to be determined.

The quotient can be evaluated as follows;

= (2.49 × 10⁴)/(3.0 × 10²)

= (2.49/3.0) × (10⁴/10²)

= 0.83 × 10²

Hence, when expressed in scientific notation, the result is; 8.3 × 10¹.

Ultimately, The rewritten form of the number 2.49 x 10^4 divided by 3.0 x 10^2 in scientific notation as required in the task content is; Choice A; 8.3 × 10¹.

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Answer:

A: The correlation coefficient is a statistical measure of the strength of the relationship between the relative movements of two variables. The values range between -1.0 and 1.0. A calculated number greater than 1.0 or less than -1.0 means that there was an error in the correlation measurement.

B: he correlation coefficient is a statistical calculation that is used to examine the relationship between two sets of data. The value of the correlation coefficient tells us about the strength and the nature of the relationship. Correlation coefficient values can range between +1.00 to -1.00.

Step-by-step explanation:

Hopefully this helped!!!

Answer:

A, sorry if wrong but it can't be b or d

Answer:

(1) Coeficcient (2) Constant (3) 4 terms (4) In descending order, 2, 1, 3, 4 (5) -2 (6) 1 (7) 5 (8) 2 (9) -15, 5x, -7x^2, 2x^3 (10) -4x^2y, 2xy, 5x, 7

Step-by-step explanation:

Sorry if I got one wrong

Answer:

1) Coefficient

2) Constant

3) 4

4) 3x^2 = 2

10x = 1

6x^3 = 3

x^2y^2 = 4

5) 3

6) 2

7) 5

8) 1

9) 2x^3-7x^2+5x-15

10) -4x^3y+2xy+5x+7

Answer:

the y-intercept is 5 the slope is 3

Step-by-step explanation:

Answer:

Multiply 1/4 six times.

Start from zero and move 1/4 six times.

Product: 1 2/4      Other equivalent fractions: 2/3, 1 4/8, 18/12

Step-by-step explanation:

1.  1/4                      

2. 1/2 (2/4)

3. 3/4

4. one whole (4/4)

5. 5/4 ( 1 1/4)

6. 6/4 ( 1 2/4) (1 1/2)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1. 1/4 + 1/4 = 2/4

2. 2/4 + 1/4 = 3/4

3. 3/4 + 1/4 = 4/4

4. 4/4 + 1/4 = 5/4

5. 5/4 + 1/4 = 6/4

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

1/4 times 6.                                      In other ways..  

6/4                                                                    1/4 times 6/1 = 6/4

Answer:

y=6x-12

Step-by-step explanation:

y2-y1

--------

x2-x1

Answer:

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac {3}{7}}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac {3×3}{7×3}}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac {9}{2}}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac {1}{3}}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac {1×7}{3×7}}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac {7}{21}}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac {9}{21}}\iff {\dfrac {7}{21}}[/tex]

[tex]{:}\leadsto [/tex][tex]\sf {\dfrac{9}{21}} \gt {\dfrac {7}{21}}[/tex]

[tex]\therefore[/tex][tex]\sf {\dfrac {3}{7}} \gt {\dfrac {7}{21}}[/tex]

Answer:

personally i think c

Step-by-step explanation:

its because for the graph there is 90 and it has a point and when i used a calc i put the points and the a=18 so 90 eould be 18 again this what i think i am not really AMAZING at it but i get some of it for ex the chart equals it only equals a=5

Answer:

42

Step-by-step explanation:

Hope this helps

The correct answer is option C which is  The zero of the function is shifted 4 units to the left.

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

When we plot the functions on the graph we can see that the vertex of the parabola is shifted from the ( 0,0 ) to ( 4,0 ).

Therefore the correct answer is option C which is . The zero of the function is shifted 4 units to the left.

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Answer:

option b ......................

The equation that can be used to solve  log₄(x + 4) + log₄(x - 2) = 2 is

x² + 2x - 8 = 0.

The logarithm is the opposite of the exponential function.

This indicates that the exponent to which a fixed number, base b, must be raised in order to obtain a specific number x, is represented by the logarithm of that number.

Given, log₄(x + 4) + log₄(x - 2) = 2.

We know logₐx + logₐy = logₐxy.

log₄(x + 4)(x - 2) = 2.

log₄(x² - 2x + 4x - 8) = 2.

log₄(x² + 2x - 8) = 2.

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Answer:

9,008

Step-by-step explanation:

67 + 12 = 79

14 + 15 = 29

79 + 29 = 108

8,900 + 108 = 9,008

plz mark me brainliest

Answer:

9008

Step-by-step explanation:

67+8,900= 8967

8967+12= 8979

8979+14 = 8993

8993+15=9008

Answer:

$1200

Step-by-step explanation:

20 hours makes $400

so when you add 20 hours to 40 hours its basically adding $400 to $800

Answer: [tex]x = 9[/tex]

Step-by-step explanation:

[tex]4x=43-7 = 36\\x =36/4 = 9\\x = 9[/tex]

Answer:

Step-by-step explanation:

a). 3 ...... 8

3 × 8 = 24

3 + 8 = 11

b). n + 1.5 = 6.5 ⇒ n = 5 (across from OR to the left from 1.5)

5 × 1.5 = 7.5 (under the X sign)

Answer:

good luck tho oh and dont forget to tell me the answer

Step-by-step explanation:

Answer:

2x(9x - 8)(x - 1)

Step-by-step explanation:

Answer:

37

Step-by-step explanation:

10z=3 and z=4

substitute

10(4)-3

simplify

40-3

answer

37

Answer:

360,000

Step-by-step explanation:

just multiply by 3

Answer:

3,120 second year 3,244.80 the third year.

Step-by-step explanation:

4% of 3,000 is 120

so 3,120 then 3,244.80 the third year after the 4% is compounded

Answer:

Point X is the loacation [tex]\pi[/tex], and is an irrational number

Step-by-step explanation:

[tex]\pi[/tex] ≈ 3.14

it is also a irrational number