2x - 8y = 16 and 3x - 2y = 19 How would I solve by substitution?

Answer:

P = 16

Step-by-step explanation:

Answer:

657

Step-by-step explanation:

Answer:

Options (a), (b), (e)

Step-by-step explanation:

a). [tex]\frac{5^{10}}{5^{8}}=5^{10-8}[/tex]

          = 5²

    True.

b). (4⁸)³ = [tex]4^{8}\times 4^8\times 4^8[/tex]

            = [tex]4^{24}[/tex] [Since, [tex]x^{a}\times x^{b}\times x^c=x^{a+b+c}[/tex]]

    True.

c). [tex]10^{-4}=\frac{1}{10^4}[/tex]

    And [tex]\frac{1}{4^{10}}\neq \frac{1}{10^4}[/tex]

    False.

d). [tex]15^{6}\times 15^{3}=15^{6+3}[/tex]  [Since, [tex]x^{a}\times x^{b}=x^{a+b}[/tex]]

                    = 15⁹

    And [tex]15^{9}\neq 15^{18}[/tex]

    False.

e). [tex](6^{8})^{0}=1[/tex] [Since, a⁰ = 1]

    True.

Answer:

Please check the explanation.

Step-by-step explanation:

Given the equation

y = 0.5x

when x = 12

y = 0.5 · (12)

y = 6

when x = 0

y = 0.5(0)

y = 0

when x = 8

y = 0.5(8)

y = 4

when x = 12

y = 0.5(12)

y = 6

Thus, the table is completed such as:

x             y

0             0

8             4

12           6

Therefore, the ordered pairs that complete the equation y = 0.5 x are:

The graph of the equation is attached below.

Answer:

D. 95800

Step-by-step explanation:

958x10^2

958 x 100

95800 Alternative Form: 9.58 x 10^4

Answer:D

Step-by-step explanation: All you need to do is move the non existent decimal in 958 2 spaces to the right. So it would go from 958. to 95,800.

Answer: Sorry I cant see the picture

Step-by-step explanation:

Answer:

(11+w)/4

Step-by-step explanation:

Let the first term be 3 miles

If he plans to increase the distance of his run by 1/4 mile, then

common difference = 1/4

To get the distance Kane runs in a training session after w weeks , we will use the nth term of an AP

Tw = a+(w-1)d

Tw = 3 + (w-1)(1/4)

Tw = 3 + 1/4 w - 1/4

Tw = 11/4 + 1/4 w

Tw = (11+w)/4

Hence the distance Kane runs in a training session after w weeks is (11+w)/4 weeks

Answer:

35 boys

Step-by-step explanation:

Answer:

15/35 or 43% if your going to the nearest whole number so there are 35 boys and 15 girls

Step-by-step explanation:

Let x = the number of boys

Let 50 - x = the number of girls

Girls/Boys: 3 = 50 - x       Cross Multiply

                   7        x

3x = 350 - 7x

10x = 350

x = 35 boys

50 - x = 15 girls

Check: 15/35 = 3/7

Answer: C) Tracy spends $7 every 4 days

Graphing the function as well as x = 4 will show that there is a difference in the y-value of 7 between x=0 and x=4, meaning she spends $7 every 4 days.

Answer:

x1=-5/2, x2=1

Step-by-step explanation:

Answer:

x1=-5/2, x2=1

Step-by-step explanation:

because if you use quadratic formula

you would have x = -3 + or - √3^2 -4 x 2 x (-5)/ 2 x 2

simply and combine like terms give you

x = -3 + 7 / 4

x = -3 - 7 / 4

then you get

x = 1

x = -5/2

Answer:

[tex]sin[/tex][tex](Q)[/tex] = [tex]\frac{47}{73}[/tex]

Step-by-step explanation:

Answer:

they are perpendicular because they have slopes that are negative reciprocals

Step-by-step explanation:

th

The statement that best explains the relationship between lines FG and HJ is "They are not perpendicular because their slopes are not negative reciprocals."

The slope or gradient of a line in mathematics is a numerical representation of the steepness and direction of the line.

If a line passes through two points (x₁ ,y₁) and (x₂, y₂) ,

then the equation of line is

y - y₁ = (y₂- y₁) / (x₂ - x₁) x (x - x₁)

To find the slope;

m =  (y₂- y₁) / (x₂ - x₁)

To find the slope of a line passing through two given points, we use the formula:

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

where (x1, y1) and (x2, y2) are the coordinates of the two points.

For line FG, the two points are F(-4, 1) and G(0, -2):

slope of FG = (-2 - 1) / (0 - (-4)) = (-2 - 1) / 4 = -3/4

For line HJ, the two points are H(-4, -2) and J(0, 4):

slope of HJ = (4 - (-2)) / (0 - (-4)) = 6/4 = 3/2

The slopes of lines FG and HJ are not equal. However, we can see that they are not negative reciprocals of each other:

slope of FG = -3/4

slope of HJ = 3/2

Therefore, lines FG and HJ are not perpendicular because their slopes are not negative reciprocals of each other.

To learn more about the slope;

brainly.com/question/3605446

#SPJ7

Answer:

The value of x is 67.5

Step-by-step explanation:

The sum of the measures of the angles around a point is 360°

Let us solve the question

∵ In the given figure there are 3 adjacent angles around one vertex

→ By using the rule above

∴ The sum of their measures is 360°

∵ One of the angles is a right angle

∵ The measure of the right angle is 90°

∵ The measures of them are x, 3x, and 90°

∴ x + 3x + 90° = 360°

→ Solve the equation by adding the like terms to find x

∵ (x + 3x) + 90 = 360

∴ 4x + 90 = 360

→ Subtract 90 from both sides

∵ 4x + 90 - 90 = 360 - 90

∴ 4x = 270

→ Divide both sides by 4

∴ x = 67.5

∴ The value of x is 67.5

Answer:

B. Penny Stock

Step-by-step explanation:

Penny stocks are very cheap stocks

Answer:

There were 30 questions on the test.

Step-by-step explanation:

1. Set up your equation: 27/90 = y/100

2. Next you want to cross multiply: 2700 = 90y or 270 = 9y

3. Divide 270 by 9 to find your y: y = 30

There were 30 questions on the test.

Answer: Around two gallon cans

Step-by-step explanation:  One gallon can of paint covers up to 400 square feet, which is enough to cover a small room, like a bathroom. Two gallon cans of paint cover up to 800 square feet, which is enough to cover an average size room.

Answer:

50

Step-by-step explanation:

5+5 = 10

10 × 10 = 100

100 ÷ 2 = 50

Answer:

area of a triangle = 0.5 X base X height

0.5 X 4 X 4 = 8 cm^

area of a rectangle l X w

3 X 5 = 15 cm^

area of a parallelogram = base X height

5 X 3 = 15 cm^

add totals together

15 + 15 + 8 = 38 cm^

Answer:

8.4 meters

Step-by-step explanation:

According to the problem, computation of the given data are as follows:

Ribbon roll = 12 meter

Number of pieces cut = 9

Length of each piece = 0.4 meter

So, total length cut = 0.4 × 9 = 3.6 meters

So, we can calculate the ribbon available for making wreaths by using following formula:

Ribbon available after cut = Ribbon total length - Total length cut

By putting the value,

Ribbon available for wreaths = 12 meters - 3.6 meters

= 8.4 meters

Answer:

6:54

Step-by-step explanation:

Correct time set = 10 am

Correct time after 3 hours = 10 am + 3 hours

= 1 pm

Steven watch after 3 hours = 12:54

This means Steven watch is 6 minutes behind the normal time

If Stephen does not adjust his watch, at what time on his watch should he show up at the restaurant for a 7 o' clock date with Mabel?

Time Stephen show up for date with Mabel = 7:00 - 6 minutes

= 6:54

Answer:

154,598

Step-by-step explanation:

You can show the growth in the following equation

100,000(1.02)^n

where n is the number of years

To find the population in 22 years you just plug in 22 for n

100,000(1.02)^22

154597.9671

Which rounds to 154598

Answer:

B.The expanded form is (Two-fifths) (two-fifths) (two-fifths).

E.Two-fifths)cubed = StartFraction 8 Over 125 EndFraction

Answer:

b and e :D

Step-by-step explanation:

Answer:

i like your cut g

Step-by-step explanation:

Answer:

We conclude that:

Step-by-step explanation:

Total number of packages = 24

The total number of packs in 24 packages = 24 packs

Total price for 24 packs of gum = 42$

If the total price for 24 packs of gum is 42$, then the price for 1 pack can be calculated by dividing 42 by 24.

i.e.

Total price in one pack of gum = 42/24 = 3$

Therefore, we conclude that:

Answer:

True I think. I could be wrong but don’t be mad if I am.

Step-by-step explanation:

Answer:

The answer is "[tex]4 \cdot 7[/tex]".

Step-by-step explanation:

In the question the total given value =4(x+7).  if we add the value it will be 11 but if we multiply the value it is equal to [tex]4 \cdot 7[/tex].

The error gardener made is that the area of the extended portion is 28 ft² instead of 11 ft².

Given to us

The original length of the garden is x.

The Area of the extended garden is 4(x+7).

Given to us is the area of the complete garden, therefore, comparing the expression with the area of a rectangle,

[tex]\text{Area of rectangle}= \rm{ Breadth \times Length[/tex]

[tex]4(x+7) = Breadth \times Length[/tex]

Therefore, the breadth of the rectangle is 4 feet, since the breadth of the rectangle is not been changed the breadth of the rectangle is same as before, also (x+7) represents the complete length of the garden after it is extended, and since the original length of the garden is x, the length extended is 7 feet.

We know that the breadth of the rectangular garden is 4 and the area of extended length is 7, therefore,

The Area of the only Extended Portion of the Garden

= 4 x 7 = 28 ft²

Hence, the error gardener made is that the area of the extended portion is 28 ft² instead of 11 ft².

Learn more about Rectangle:

https://brainly.com/question/10046743

Answer:

B and D

Step-by-step explanation:

First off, we can rotate it. When rotating, I found that the x and y values switch places in a way.

We would need to rotate it 90 degrees counterclockwise about the origin in order to get it in the same position as triangle BDE. This makes statement B correct.

In order to make triangle ABC smaller, the dilation would have to be smaller than one. Counting the right side's length, ABC has 6 squares and BDE has 3.

This would mean 6 * 1/2 = 3, meaning statement D is true.

Answer:

12x+12

Step-by-step explanation:

Answer:

12+12

Step-by-step explanation:

9+12+3

9x+12+3x12+12

9+8+3+4

9x+8+3x+49+12+3

have a good day/night

may i please have a branlliest

2115

Step-by-step explanation:

You multiply 235 by the number of candy bars in this case it would be 9