PLS HELP WILL MARK YOU BRAINLIEST NO FAKE ANSWERS
a air balloon is at a height of 2,520 feet. it begins to descend at the rate of 140 feet per minute.
1.Write an expression to model its height after x minutes
2. Find the expression for 2,5,8,10,15 minutes

Work Shown:

[tex]5t +2r = 3t+10\\\\5t = 3t+10-2r\\\\5t-3t = 10-2r\\\\2t = 10-2r\\\\t = \frac{10-2r}{2}\\\\t = \frac{10}{2}-\frac{2r}{2}\\\\t = 5-r\\\\[/tex]

Answer:

A and B

Step-by-step explanation:

F(x) = (x - 1)(x + 6)           To find the zeros of f(x) set each factor = 0 and solve for x.

X - 1 =0       x + 6 = 0

x = 1;    x = - 6

Answer:

c is the correct answer. -1.5(w-5)

#3

Answer:

11% of 10 is 1.1

Step-by-step explanation:

hope this helps

Answer:

1.1

Step-by-step explanation:

multiply 10 by 11 percent, ie

[tex]10 \times \frac{11}{100 } \\ 1.1[/tex]

Answer:

20%

Step-by-step explanation:

the number is increased by 3 so you put 3 on 15 and 3/15=1/5=2/10=20/100

The percentage increase in the pay of Nina is 20%.

To calculate the percentage increase work out the difference (reduction) between the two figures you are comparing before calculating a percentage drop. Then, increase the result by 100 after dividing the decrease by the initial number.

% Increase = Increase / Original Number × 100

Nina got the initial pay as $15.00 per hour.

After the increment, her pay increased to $18.00.

The total increment = final pay - initial pay

                                 = 18.00 - 15.00

                                 = 3.00

Now, the percentage increase = (3/15)×100

                                                   = 20

Therefore, there is the 20% increment for the pay of Nina.

To know more about the percent change of a quantity, here

https://brainly.com/question/809966

#SPJ2

Answer:

4/5 minute or 12 seconds

Step-by-step explanation:

1/4 page= 12 seconds

1 page = 48 seconds

48/60

24/30

8/10

4/5

Answer:

1) Divide; 2) Multiply; 3) Subtract; 4) Drop down the next digit. Of these steps, #2 and #3 can become difficult and confusing to students

Step-by-step explanation:

Answer:  3∛3

Step-by-step explanation:

81^(1/3) = ∛(81) = ∛(27 × 3) = 3∛3

Answer:

32 - 4 = 28 units^2

Step-by-step explanation:

Rectangle area = width x length

4 x 8 = 32

Rectangle minus the missing right triangle.

Triangle area: (base x height)/2

Right triangle = (4 x 2)/2 = 4

Answer:

pop or kpop

if I can't have u is my fav

have a nice day <3

Step-by-step explanation:

fancy like

Answer:

7.685 × 10^6

Step-by-step explanation:

Answer:

see explanation

Step-by-step explanation:

The scale factor is the ratio of corresponding sides, image to original.

A

scale factor = [tex]\frac{3}{9}[/tex] = [tex]\frac{1}{3}[/tex]

B

scale factor = [tex]\frac{9}{3}[/tex] = 3

Answer:

D. 48

Step-by-step explanation:

We don't know the numbers of coupons sent to existing members and to potential members, but we know a relationship between the number.

They sent 5 times as many coupons to potential members as they did to existing members.

Let x = number of coupons sent to existing members.

Then 5x = number of coupons sent to potential members.

The total number of coupons sent was x + 5x = 6x

The total number of coupons sent was 288.

Therefore, 6x must equal 288 giving us an equation with a single variable.

6x = 288

x = 48

Answer: 48

Answer:

Amount of sales tax ≈ $2.44 dollars;

Price with sales tax ≈ $33 dollars;

Step-by-step explanation:

1. Calculate the 'Amount of sales tax':

Formula:

Amount of sales tax =

Sales tax rate × Price without sales tax

Calculation:

Amount of sales tax =

8% × 30.56 =

8/100 × 30.56 =

8 ÷ 100 × 30.56 =

0.08 × 30.56 =

2.4448 ≈

2.44

(Rounded to a maximum of 2 decimals)

2. Calculate the 'Price with sales tax':

Formula:

Price with sales tax =

Price without sales tax + Amount of sales tax

Calculation:

Price with sales tax =

30.56 + 2.4448 =

33.0048 ≈

33

(Rounded to a maximum of 2 decimals)

Answer:

The slope of AB is undefined; the slope of CD is 0; The lines are perpendicular.

Step-by-step explanation:

Line AB would form a vertical line. Slope is Δy/Δx. To go from 3 to 7 (the y-coordinates) you need to go up 4 units. So we would then have Δy/Δx = 4/Δx. To go from -5 to -5 (the x-coordinates) we have to go left or right 0 units. So, Δy/Δx = 4/Δx = 4/0. Anything divided by 0 is undefined. Remember: vertical lines always have an undefined slope.

Line CD would form a horizontal line. To go from 9 to 9 (the y-coordinates) you need to go up or down 0 units. So, Δy/Δx = 0/Δx. To go from 1 to -10 (the x-coordinates) you need to go down 11 units. So Δy/Δx = 0/Δx = 0/1. 0 divided by anything is 0. Remember: horizontal lines always have a slope of 0.

If you picture a horizontal line and a vertical line intersecting, they would both form a right angle when they intersect.  By definition, this would make both lines perpendicular.

Answer:

Similar triangles are in proportion. Therefore equilateral triangle are in proportion.

Step-by-step explanation:

Answer:

1. 700

2. $157.50

3. $857.50

Step-by-step explanation:

Regular pay is calculated by taking 40 hours x $17.50 to get $700.

Overtime is calculated by taking 6 hours x 17.50 x 1.50 to get $157.50

Gross pay would be adding these two amounts together.

Answer:

100 points cool the answer is 30

Answer:

x=28/3

Step-by-step explanation:

combine multiplied terms into a single fraction

7 = 3x/4

multiply all terms by the same value to eliminate fraction denominators

4 · 7 =  4 · 3x/4

cancel multiplied terms that are in the denominator

4 · 7 = 3x

multiply the numbers

28 = 3x

divide both sides of the equation by the same term

28/3 = 3x/3

simplify

a. cancel that are in numerator and denominator

28/3 = x

b. move the variable to the left

x = 28/3

Answer:

It is linear because the ratio of the change in the final cost compared to the rate of change in the price tag is constant

Answer:

It's A. Edge 2022

Step-by-step explanation:

So basically, you just multiply 10, 20, 30, and 40 by 0.75
So now the numbers on your table are 7.5, 15, 22.5, and 30.
7.5 + 7.5 is 15, 15 + 7.5 is 22.5, and 22.5 + 7.5 is 30, so it's linear.

Answer:

Integers: 32,33,34,35

Step-by-step explanation:

Consecutive means back-to-back, with a difference of 1

Therefore this can be represented with the following equation (where x is the first number), and we can set this equal to the sum

[tex]x+(x+1)+(x+2)+(x+3)=134\\4x+6=134\\4x=128\\x=32[/tex]

Therefore since x = 32, all four integers are:

[tex]32,33,34,35[/tex]

If we check this, we can see that their sum equals to 134

[tex]32+33+34+35 = 134[/tex]

Hope this helps!

Answer:

Y = mx + b

Step-by-step explanation:

m represents the slope of the line and b represents the y-intercept.