For each pair solve of simultaneous equations solve for x and y x+y=13 and 8x-5y=0

Answer:

70 degrees

180-40=140

140/2 = 70

Answer:

C

Step-by-step explanation:

A, B and D are all false based on the data. C is true

Answer:

Answer is = A

Step-by-step explanation:

Just did the A-P-E-x

Answer:

The answer to your question is 26

Step-by-step explanation:

Answer:

3.913%

Step-by-step explanation:

We are given that Sheila earned is commission $900 for selling $23,000 worth of jewelry, and we are asked to find the rate of her commissions as a percent.

The rate of commissions would basically just be what percent of the money made does she get. Since Sheila sold $23,000 worth of jewelry and got $900 for doing so, her rate of commission would be:

900 ÷ 23,000 ≈ 0.03913

Which expressed as a percent is:

3.913%

So her rate of commissions would be 3.913%.

I hope you find my answer to be helpful. Happy studying.

Answer:

58%

Step-by-step explanation:

Just do 0.576923 times 100% & you should get 57.6923% than round because it says nearest whole number so that's how your answer is 58% :)

Answer:

1/3

Step-by-step explanation:

Slope formula: y2 - y1/x2 - x1

Answer:

D

Step-by-step explanation:

3 represents skateboards and 1 represents bikes. We need to get from 3 to 12 and 1 to the answer by using the same number you used to get from 3 to 12.

To get from 3 to 12 you multiply by 4

3*4=12

So let's go ahead and multiply 1 by 4 as well

1*4=4

Your ratio is now 12:4 and 4 stands for bikes so there are 4 bikes

Answer:

26.75 so 27

Step-by-step explanation:

214 divided by 8 = 26.75

Answer:

27 boxes

Step-by-step explanation:

214 ÷ 8 = 26.75

Because you can't get .75 of a box, Jacob needs at least 27 boxes.

Hope this helps! :)

Answer: True for all x

Step-by-step explanation:

4x - 6 + 2x = 3(2x-2)

Group Like Terms: 4x+2x - 6 = 3(2x-2)

Add Similar Elements (4x+2x=6x): 6x - 6 = 3(2x-2)

Expand: 3(2x-2) ; 6x - 6

6x - 6 = 6x - 6

Add 6 to Both Sides: 6x - 6 + 6 = 6x - 6 + 6t: 6x - 6x = 6x - 6x

Simplify: 6x = 6x

Subtract: 6x - 6x

Simplify: 0 = 0

Both sides are equal in this equation, therefore all values for x is true.

Hope This Helped, Have A Great Day!

it is true

Answer:

left hand side6+2x

6x-6

right hand side

3(2x-2)

6x-6

now

6x-6=6x-6

0=0

Answer:

Solution → (7, 3)

Step-by-step explanation:

Given system of equations is,

3x - y = 18 -------(1)

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

Substitution method is the best method to solve the given system of equations.

Substitute the value of y from equation (2) to equation (1)

3x - (x - 4) = 18

3x - x + 4 = 18

2x = 18 - 4

2x = 14

x = 7

From equation (2)

y = 7 - 4

y = 3

Solution of the system of equations will be (7, 3).

Answer:

8

Step-by-step explanation:

good luck. hope this helps.

Answer:

Width=6 Length=36

Step-by-step explanation:

The stage is rectangular since the length is not equal to width.

We use the formula (Width × Length) to obtain the area of any rectangle.

But the Length is 6 times the Width, therefore we equate the formula for the area of stage as

Width × 6Width = 216

we get Width as 6 and 6width which is the length as 36

Answer:

the answer is 81,920 I hope this helps you!!

Answer: $44,550

Step-by-step explanation:

Supplies used during the period are treated as expenses to the business so have to be deducted from net income.

If the supplies for the year was $2,300, the net income would be adjusted as follows:

= 46,850 - 2,300

= $44,550

Answer:

It would be B (15x + 20x)

Answer:

The fourth vertex must be located at [tex]Z(x,y) = (4, -1)[/tex]. The graph of the figure is included below.

Step-by-step explanation:

Let be [tex]X(x,y)[/tex], [tex]Y(x,y)[/tex], [tex]Z(x,y)[/tex] and [tex]W(x,y)[/tex] so that a rectangle is formed. Hence, we must satisfy the following conditions:

[tex]X(x,y) = (a, c)[/tex] (1)

[tex]Y(x,y) = (a, d)[/tex] (2)

[tex]Z(x,y) = (b, c)[/tex] (3)

[tex]W(x,y) = (b, d)[/tex] (4)

[tex]a < b[/tex] (5)

[tex]c < d[/tex] (6)

If we know that [tex]a = -1[/tex], [tex]b = 4[/tex], [tex]c = -1[/tex], [tex]d = 1[/tex], then we have the following points:

[tex]X(x,y) = (-1, -1)[/tex]

[tex]Y(x,y) = (-1, 1)[/tex]

[tex]Z(x,y) = (4, -1)[/tex]

[tex]W(x,y) = (4,1)[/tex]

Then, the fourth vertex must be located at [tex]Z(x,y) = (4, -1)[/tex].

Answer:

A

Step-by-step explanation:

y = mx + b

    m = slope

    b = y-intercept

3x - 2y = 12

-2y = -3x + 12

2y = 3x - 12

y = 3/2x - 6

Slope is 3/2

Y-intercept is -6

Answer:

4.25

Step-by-step explanation:

Answer:

22

Step-by-step explanation:

Answer:

23,26,29,32,35,38,41,44

Step-by-step explanation:

In mathematics, WHOLE NUMBERS  are the basic counting numbers 0, 1, 2, 3, 4, 5, 6, … and so on.  Whole numbers are the real numbers which includes zero and all the positive integers. Whole numbers don't include negative numbers, fractions, or decimals.  

Answer:

15cm

Explanation:

the formula for calculating the perimeter of a rectangle is (length + breadth) ÷ 2. so, we can divide the given perimeter by 2 to find the sum of the length and breadth of the rectangle:

42 ÷ 2 = 21cm

now, since we know the length of the rectangle is 6cm, we can subtract it from the sum of the length and breadth:

21 - 6 = 15cm

thus, the breadth of the rectangle is 15cm.

i hope this helps! :D

Answer:

Costs $2.75

Step-by-step explanation:

Set up:

[tex]\frac{12}{1.50} = \frac{22}{x}[/tex]

Cross Multiply:

12x = 33

Divide by 12:

x = $2.75

Answer:

£2.74

Step-by-step explanation:

hioe this helps!

have a good day :)

Answer:

B: 8 7/8 Lbs

Step-by-step explanation:

answer = [tex]15\frac{1}{8} -3\frac{1}{2} -2\frac{3}{4}[/tex]

step 1 find a common denominator

common denominator - 8

* apply *

[tex]\frac{1^*^1}{8^*^8} =\frac{1}{8} \\\\\frac{1^*^4}{2^*^4} =\frac{4}{8} \\\\\frac{3^*^2}{4^*^2} =\frac{6}{8}[/tex]

now we have

[tex]15\frac{1}{8} -3\frac{4}{8} -2\frac{6}{8}[/tex]

step 2 make each fraction a improper fraction

We can do this my multiplying the big number by the denominator and adding that to the numerator.

[tex]15*8=120\\120+1=121\\\frac{121}{8} \\\\3*8=24\\24+4=28\\\frac{28}{8} \\\\2*8=16\\16+6=22\\\frac{22}{8}[/tex]

now we have

[tex]\frac{121}{8} -\frac{28}{8} -\frac{22}{8}[/tex]

Now we can subtract

remember when subtracting fractions you only subtract the numerators. ( so we keep the denominator as 8 )

so 121 - 28 - 22 = 71

so the answer is [tex]\frac{71}{8}[/tex]

finally we want to change the answer back into a mixed fraction

To do this we divided 71 and 8

8 can go into 71 8 times

8 * 8 = 64

71 - 64 = 7

We're left with [tex]8\frac{7}{8}[/tex]

Answer:

b

Step-by-step explanation:

Answer:

The temperature changed by 45˚

Step-by-step explanation:

Set up an algebraic equation

-5 + x = 40

Add 5 to both sides

x = 45