. A large tree, b, removes 1.5 kg of pollution from the air each year. A small tree, s, removes 0.04 kg of pollution each year. An urban forest has 1,650 large and small trees. Together, these trees remove 1,818 kg of pollution each year. Which system of equations could be used to find the number of large and small trees in the forest?

Answer:

y = -2x + 19

Step-by-step explanation:

Let the equation of the line is y = mx + b

Here, m = slope of the line

          b = y - intercept

slope of a line passing through (x₁, y₁) and (x₂, y₂) is given by

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

slope of line passing through (2, 15) and (6, 7) will be

[tex]m=\frac{15-7}{2-6}[/tex]

    = (-2)

Equation of the line will be,

   y = -2x + b

Since line passes through point (2, 15)

15 = -2 (2) + b

b = 15 + 4

b = 19

Therefore, equation will be,

y = -2x + 19

Answer:

Step-by-step explanation:

First

a+s=375

a=375-s

Next

5a+3s=1375, now using a found above makes this equation become

5(375-s)+3s=1375

1875-5s+3s=1375

1875-2s=1375

-2s=-500

s=250, since a=375-s

a=375-250

a=125

So 125 adult and 250 student tickets were sold.

Answer:

70 Yards.

Step-by-step explanation:

From Ron to Bill is 30 and from there to John adds 40 which equals 70

I might have done the math wrong, or got the whole thing wrong. Sorry if so.

Answer:

The shoes now cost $5.60

Answer:

1.40

Step-by-step explanation:

100% = 3.50

To get to 60%, divide 100 by 1.6, so this is the scale factor.

3.50/1.6=2.1 (this we need to take away from og amount)

3.50-2.10= 1.40

Answer:

substitute all given values in this formula v=base ×height

then height= base /volume

Step-by-step explanation:

Answer:

9)m≤54

11)x>30

13)y≤40

Step-by-step explanation:

9)m−18≤36

Add 18 to both sides.

m≤36+18

Add 36 and 18 to get 54.

m≤54

11)9x>270

Divide both sides by 9. Since 9 is positive, the inequality direction remains the same.

x=270/9

Divide 270 by 9 to get 30.

x>30

13)y/5≤8

Multiply both sides by 5. Since 5 is positive, the inequality direction remains the same.

y≤8×5

Multiply 8 and 5 to get 40.

y≤40

Answer:

I can't see the equations but I can give you one

Step-by-step explanation:

1150 = 5y + 10a

Answer:

the equation would be

A+Y=150

10A+5Y=1150

Step-by-step explanation:

A=number of adults

Y=number of growth

total tickets = 150

Answer:

75.4

Step-by-step explanation:

Our area is divide the area by pi meaning 12 is our radius

to solve for circumference

we use

[tex]2[/tex]×[tex]\pi[/tex]×[tex]radius[/tex]

(2×3.14)×12=

6.28×12=

7.36

Answer:

8x10x

Step-by-step explanation:

Answer:

It's complement is 94%.

Step-by-step explanation:

Complement of a percentage:

The complement of a percentage is 100% subtracted by this percentage.

In this question:

Percentage of 6% for probability of rain.

So the complement, that is, the probability of not raining, is:

100 - 6 = 94%.

Answer: 30 degrees

Step-by-step explanation:

Answer:

the answer is A.30 dgree

Answer:

no name and function

Step-by-step explanation:

Answer:

x=12

Step-by-step explanation:

58° = (5x-2)

add 2 to both sides

60 = 5x

divide by 5 on both sides x = 12

Answer:

$90.00

Step-by-step explanation:

120.00 x 25% = 30.00

120.00 - 30.00 = $90.00

Answer:

Step-by-step explanation:

The ratio of corresponding sides of similar figures is same:

Answer: x=10

Step-by-step explanation: correct test results

Answer:

Step-by-step explanation:

The sum of those two angles must be 180 degrees.

3x+10+80=180

3x+90=180

3x=90

x=30

Answer:

Um, maybe 21.5?

Step-by-step explanation:

43/2 = 21.5, so maybe

1 = 21.5

Answer:

Step-by-step explanation:

Sin(x) = opposite / hypotenuse.

opposite = 28  The opposite is not connected to the angle.

hypotenuse= 35

Sin(x) = 28/35 = 4/5

Cos(x) = adjacent / hypotenuse.

The adjacent side is part of the angle

adjacent = 21

hypotenuse = 35

Cos(x) = 21 / 35 = 3/5

Tan(x) = opposite / adjacent

opposite = 28

adjacent = 21

Tan(x) = 28/21

Tan(x) = 4/3

Answer:

- 15x^{3} y

Step-by-step explanation:

[tex] - 15x ^{3} y[/tex]

[tex] - 16x^{3} y \: + 2x ^{3} y \: - x ^{3} y \\ \\ - 16x ^{3} y + x^{3} y \: = \: - 15x^{3} y[/tex]

Answer:

b=75/97

Step-by-step explanation:

Answer:

52 dollars and 47 cents, or 52.47

Step-by-step explanation:

First, multiply 12 and 5.50, then you should get 66.00. Then, take the 25% discount, and divide it by a hundred, you should get 0.25, now multiply 0.25 and 66.00. You should get 16.50, thats your discount, so subtract 16.50 from 66.00, you should get 49.50. Now for the sales tax, divide 6.0 by 100, you should get 0.06. Now multiply 0.06 and 49.50, you should get 2.97, thats your tax, add it to 49.50, and you get 52.47 so BOOM, thats your answer, your welcome

Answer:

Step-by-step explanation:

12

Answeer

scan it with photo math it works

Step-by-step explanation:

Hello, I Am BrotherEye

Answer:

This Transparent inquisition can be solved Below

Use transformations to graph a quadratic function in vertex form. A quadratic function in standard form, f(x) = ax² + bx + c, can be changed into vertex form by completing the square. The vertex form of a quadratic function is f(x) = a(x – 5)2 + k, where the vertex of the function is (h, k).

Step-by-step explanation:

Vertex form to standard form converter

Write the parabola equation in the vertex form: y = a*(x-h)² + k ;

Expand the expression in the bracket: y = a*(x² - 2*h*x + h²) + k ;

Multiply the terms in the parenthesis by a : y = a*x² - 2*a*h*x + a*h² + k ;

Best Of Luck

~

BrotherEye

Answer:

c = 240

Step-by-step explanation:

Using the rule of exponents

[tex](a^m)^{n}[/tex] = [tex]a^{mn}[/tex]

Then

[tex](a^{40}) ^{6}[/tex]

= [tex]a^{40(6)}[/tex] = [tex]a^{240}[/tex]

Answer:

Binomial

Step-by-step explanation:

the polynomial has two terms 6xyz and  xy

Answer: 21

Step-by-step explanation:

Answer:

√97

Step-by-step explanation: