Can you please help me with the questions I will give you brainliest.

Answer:

r = r

Step-by-step explanation:

4(r + 20) = 1/5(20r + 400)

4r + 80 = 4r + 80

    - 80         - 80

4r = 4r

4      4

r = r

Answer:

no solution

Step-by-step explanation:

4(r + 20) = 1/5(20r + 400)

4r + 80= 4r+ 80

-4r           -4r

80= 80

Hope this helps

Answer:

2835

Step-by-step explanation:

Answer:

Step-by-step explanation:

Note that if it has a y- intercept of 20, this means that when x = 0 , y = 20

Find the table which shows that :)

Answer:

-45

Step-by-step explanation:

Sum of two integers = -30

one of them = 15

let another number be 'x'

x + 15 = -30

x = -30 - 15

x = -45

so the other number is -45

Answer:

35 degree celcuis

Step-by-step explanation:

Step-by-step explanation:

figziigx8tzztizjgztizgixoxvyxoyxitzigxohx9yssoyxr8axyoz74zt9ztxyxt8xoyxoy

Answer:

(-1,0)

Step-by-step explanation:

Midpoint formula: (coordinate 1 + coordinate 2)/2

(-4+2)/2 = -1

(-2+2)/2 = 0 0 divided by anything =0

Answer:

It represents 1 + the percent of the markup written in decimal form

Answer:

percent of original price being paid

Answer:

M²

Step-by-step explanation:

Parallel lines have equal slopes.

One line has a slope of M then the line parallel to it has a slope of M , thus

product of slopes = M × M = M²

The the product of their slopes is M².

A line's slope is determined by how its y coordinate changes in relation to how its x coordinate changes. y and x are the net changes in the y and x coordinates, respectively. Therefore, it is possible to write the change in y coordinate with respect to the change in x coordinate as,

m = Δy/Δx

where, m is the slope

Given:

two lines are parallel

and the slope of one of the lines is M

Also, the parallel lines have the same slope.

So, both the line lines have slope M.

Now, the the product of their slopes

= M x M

= M²

Hence, the product of their slopes is M².

Learn more about slope here:

https://brainly.com/question/3605446

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Answer:

a geometric transformation would mean to make some changes in any given geometric shape. In geometry, transformations relate to the movement of figures on a plane. Each transformation follow a rule

Step-by-step explanation:

For example 4 to the felt and 3 to the top, (x,y) (x-4, y+3)

2 down and 4 to the right, (x.y) (x-2, y+4)

Basically if you see an image on a graph, its the preimage and you need to create the new image the same size and shape as the the original.  

Answer:

Number line 4

Step-by-step explanation:

−9x −12 ≤ 42

-9x-12+12≤42+12

-9x≤54

-9x/-9≤54/-9

x≤-6

Number line 4 will represent the solution set of given inequality

−9x −12 ≤ 42.

When two numbers or algebraic expressions are in opposition to one another, this is known as an inequality. It can be expressed as greater than, greater than or equal to, less than, or less than or equal to.

Given:

−9x −12 ≤ 42

-9x-12+12≤42+12

-9x ≤ 54

-9x/-9 ≤ 54/-9

x ≤ -6

To know more about inequality please visit:

https://brainly.com/question/28823603

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Answer:

5c + 2.12

Step-by-step explanation:

I hope this helps!

Answer:

yes you are saying 5-9-16 is greatest possible value but how can you show it please help me I am also

Answer:

your answer is > or the second choice

Step-by-step explanation:

-7+2=-5  > 3+(-9)=-6

Answer:

the second option is correct. -5 > -6

Answer:

D          

Step-by-step explanation:

Answer:

∆FSH ≅ △_____

By rule Cannot Be Determined

Step-by-step explanation:

Both do not have an answer.

Answer: I think is 420 miles in 7 hours

hope this helps :D

Step-by-step explanation:

Answer:

A train would cover 180 miles in 3 hours, So in 6 hours it will cover 360 miles, in 7 hours it will cover 420 miles.

Step-by-step explanation:

150 miles → 2 1/2 hours = 150 minutes

x miles     → 3 hours = 180 minutes

(150 × 180) ÷ 150 = x miles

27,000 ÷ 150 = x miles

180 = x miles

Answer:

£12 per hour

Step-by-step explanation:

7 × 5 = 35 hours

35 h : 420

1 h : x

x = 420×1 / 35

= £12 per hour

Answer:

(attached image)

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

Original Equation: 2(7 + 8)

So you have to multiply 2 by 7 which equals 14

Then you multiply 2 by 8 which equals 16

Your equation should now look like this: 14 + 16

Add 14 and 16 together.

Your answer is 30

Hope I helped :)

Please condsider brainliest

Answer:

3 inches.

Step-by-step explanation:

72 / 24 = 3.

hope that helps!

Answer:

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\[/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(82, −96) and (87, −86)

We have

[tex]m = \frac{ - 86 - - 96}{87 - 82} = \frac{ - 86 + 96}{5} = \frac{10}{5} = 2 \\ [/tex]

We have the final answer as

Hope this helps you

1)

[tex]f(x) = 2x - 5\\f(4) = 2(4) - 5 = 8 - 5 = 3[/tex]

2)

[tex]f(x) = 2x - 5\\f(-6) = 2(-6) - 5 = -12 - 5 = -17[/tex]

3)

[tex]g(x) = x + 3\\g(8) = 8 + 3 = 11[/tex]

4)

[tex]h(x) = 4x\\h(5) = 4 \cdot 5 = 20[/tex]

5)

[tex]k(x) = x^2 + 2x - 5\\k(6) = 6^2 + 2 \cdot 6 - 5 = 36 + 12 - 5 = 43[/tex]

6)

[tex]k(x) = x^2 + 2x - 5\\k(-3) = (-3)^2 + 2(-3) - 5 = 9 - 6 - 5 = -2[/tex]

7)

[tex]g(x) = x + 3\\g(3x) = 3x + 3 = 3(x + 1)[/tex]

8)

[tex]f(x) = 2x - 5\\f(4x) = 2(4x) - 5 = 8x - 5[/tex]

9)

[tex]h(x) = 4x\\h(5t) = 4(5t) = 20t[/tex]

10)

[tex]k(x) = x^2 + 2x - 5\\k(4t) = (4t)^2 + 2(4t) - 5 = 16t^2 + 8t - 5[/tex]

11)

[tex]f(x) = 2x - 5\\f(x + 3) = 2(x + 3) - 5 = 2x + 6 - 5 = 2x + 1[/tex]

12)

[tex]f(x) = 2x - 5\\g(x) = x + 3\\f(g(x)) = 2(x + 3) - 5 = 2x + 6 - 5 = 2x + 1[/tex]

Answer:

-30r+15

Step-by-step explanation:

Apply the distributive law:

20(-1.5r)+20 · 0.75

Apply minus plus rules:

-20 · 1.5r +20 · 0.75

Simplify:

-20 · 1.5r + 20 · 0.75 = -30r+15

I hope it's right!! :)

Answer:

Step-by-step explanation:

To boil rice you use the following ratio

Water : Rice

3 : 1

? : 8

Basically what the ratio 3:1 means is that for every 3 cups of water, you need 1 cup if rice.

6 cups of water, you need 2 cups of rice (6:2)

9 cups of water, 3 cups of rice (9:3)

Etc.

All you would have to do is multiply 3 by 8 to find out how much water she needs for 3 cups of rice :)

Answer:

ok the ratio of water to Rice is 3:1 meaning water is 3 rice is one and your child that we have 8 cups of rice so really quite the ratio of rice to the number of cups of rice so it will be if one is equals to 8 what about 3 that is the ratio that represents water so we'll cross multiply so that you have 3 * 8/1 and the answer is 24 so the number of cups of water needed is 24

Answer:

-8

Step-by-step explanation:

The temperature dropped 8 degree, resulting in a negative change. So the integer to represent it would be negative 8 degrees.

Answer:

6p² + 7m and 63m + 81

Step-by-step explanation:

all you need to do for the first one is add the P and the M together and the - one M then for the second one you just need to multiply 21 and 27 by 3