The water depth in a lake decreases at a rate of 2 inches per day because of evaporation. How much does the water depth change in 8 days? In 15 days? In 8 days, the water depth changes by inches. In 15 days, the water depth changes by inches.

Answers

Answer 1

Answer: In 8 days it will decrease by 16 inches and  in 15 days the water depth changes by 30 inches.

Step-by-step explanation:

The water depth decreases at a rate of 2 inches per day so in this case if were to write it as an expression it will be -2x  where x is the number of days.

We will have to set it equal the total amount that it has decreased which will be y.

y= -2x    If x  represent the number of days we will put in the days and solve for y.

y = -2(8)

y = -16     This means that in 8 days it will decrease by 16 inches.

y = -2(15)

y= -30   This also means that in 15 days the water depth changes by 30 inches.


Related Questions

which equation matches the graph?​

Answers

The graph’s linear equation would be y=-3x+8
Meaning, you plot (0,8) and move down 3 and right 1 for the slope.

Answer:

y=-3x+8

Step-by-step explanation:

Match each complex numbers with its corresponding distance to the origin

Answers

Answer:

2. z = 1 - 2·i    →    √5

3. z = 4 + 3·i   →      54

4. z = 6 - 8·i    →     10

1. z = √5 - i      →    √6

Step-by-step explanation:

1. z = √5 - i

The distance from the origin = √((√5)² +1²) = √(5 + (-1)²) = √6

Therefore, z = √5 - i → √6

2) z = 1 - 2·i

The distance from the origin = √(1² + (-2)²) = √5

Therefore, z = 1 - 2·i → √5

3) z = 4 + 3·i

The distance from the origin = √(4²+3²)) = √(16 + 9) = √25 = 5

Therefore, z = 4 + 3·i → 5

4) z = 6 - 8·i

The distance from the origin = √(6²+8²)) = √(36 + 64) = √100= 10

Therefore,  z = 6 - 8·i →  10

3x = 27 + 3y
3x - 10y = 27

please explain how you got the answer.

Answers

Answer:

Hi there!

Your answer is:

Y= 0

X= 9

Step-by-step explanation:

3x=27+3y

3x-10y=27

Solve one of them for Y

I chose the first equation

3x=27+3y

-27

3x-27=3y

/3

x-9 = y

NOW, plug y in the second equation!

3x-10y=27

y= x-9

3x-10y=27

3x-10(x-9) = 27

Solve for x!

3x-10x+90 = 27

-7x + 90 =27

-90

-7x = -63

/-7

x= 9

FINALLY, plug back in x for y equation

y=x-9

x=9

y=9-9

y=0

What are the coordinates on the coordinate plane?

Answers

Answer:

0.9 1.8 2.9

Step-by-step explanation:

Answer:

P is (2,1) M is (6,2) G is (5,5) L is (1,3) i think this is right anyway

Step-by-step explanation:

hope it helped!

p.s it would be cool it you would give me brainliest

how do i find thedegree of a pollygon????

Answers

Answer:

Not sure what you mean, but I'm assuming you're referring to the sum of all the interior angles of a polygon. In that case:

Total sum of interior angles of a polygon ->

                               [tex]{180(n-2)[/tex]

However, if you are looking for the degrees of each interior angle, you must divide the total interior angle degrees by the amount of sides on the polygon, n

Degree of each interior angle of a polygon ->

                               [tex]\frac{180(n-2)}{n}[/tex]

In both cases, n represents the amount of sides the polygon has.

what is 5m+6=
what does m =

Answers

Answer:

m=11

Step-by-step explanation:

What is the slope of the line that passes through (-3,5) & (4,-1)

Answers

Answer:

-6/7, the first one

Answer:

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

Step-by-step explanation:

Use the Slope Formula to help determine the slope of the two following points:

[tex]m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex]

(where [tex](x_{1}, y_{1})[/tex] represents the first point and [tex](x_{2}, y_{2})[/tex] represents the second point)

-Apply the two following points to the formula:

[tex](x_{1}, y_{1}) = (-3, 5)[/tex]

[tex](x_{2}, y_{2}) = (4, -1)[/tex]

[tex]m = \frac{-1 - 5}{4 + 3}[/tex]

-Solve for the slope:

[tex]m = \frac{-1 - 5}{4 + 3}[/tex]

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

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

Therefore, the slope is [tex]-\frac{6}{7}[/tex].

Jonathan is signing up for a gym membership with a one-time fee to join and then a monthly fee to remain a member. The monthly fee to be a member is $25 and the total cost of membership, including the joining fee, would be $300 for 8 months. Write an equation for c in terms of t representing the total cost of the gym membership over t months.

Answers

Answer:

C=25t+100

Step-by-step explanation:

PLEASE HELP!? Show all work to multiply (6+√-64)(3-√-16) IM SO CONFUSED.

Answers

Answer:

50

Step-by-step explanation:

money that is paid for borrowing someone else's money.


interest
savings
debit
which one i give you 1 min to answer and you will earn 30 points or 70

Answers

Answer:

debit

Step-by-step explanation:

The answer is INTEREST the first option

I really need some help with this

Answers

Answer:

4

Step-by-step explanation:

The average rate of change of f(x) in the closed interval [ a, b ] is

[tex]\frac{f(b)-f(a)}{b-a}[/tex]

Here [ a, b ] = [ 0, 4 ] , thus

f(b) = f(4) = - 4² + 8(4) - 4 = - 16 + 32 - 4 = 12

f(a) = f(0) = - 4 , then

average rate of change = [tex]\frac{12-(-4)}{4-0}[/tex] = [tex]\frac{12+4}{4}[/tex] = [tex]\frac{16}{4}[/tex] = 4

Make x the subject of m=n + x/p URGENT!! Please

Answers

Step-by-step explanation:

[tex]m = n + \frac{x}{p} \\ \\ \frac{x}{p} + n = m \\ \\ \frac{x}{p }= m - n \\ \\ x = m(p) - n(p) \\ [/tex]

Answer:

p(m - n) = x

Step-by-step explanation:

You want to "solve for x."  To do this, subtract n from both sides (for the purpose of isolating the x/p term):

m - n + x/p

Next, multiply all terms by p:

p(m - n) = x

On a friend road trip, the driver travels 150 miles in 3 hours. At this rate, how
many miles will the driver travel in 30 minutes?

Answers

5555555555555555555555555555555

Which of the following lists is in order from smallest to largest?

0.05, 0.2, 0.48, 0.6
0.2, 0.05, 0.48, 0.6
0.2, 0.48, 0.05, 0.6
0.05, 0.2, 0.6, 0.48
WHO EVER SAYS IT FIRST GETS 100 POINTS

Answers

Answer:

first option

Step-by-step explanation:

Answer:

A. 0.05, 0.2, 0.48, 0.6.

900.06=_____ sig fig
Help?

Answers

Answer:

Lets in say 900.06 ____ the blank is represented as x:

x =  50

x = 45003

x = 900.060

Hope this helps! Please mark Brainliest!

what is the answer to 2x+5=12x-15

Answers

Answer:

Hi there!

Your answer is

x=2

Step-by-step explanation:

2x+5=12x-15

-12x

-10x+5=-15

-5

-10x= -20

/-10

x= 2

Answer:

x=2

Step-by-step explanation:

First you would subtract 2x from both sides so. Then you will add 15 so you can isolate your x onto your right side. Then you will divide both sides by 10 to get x=2.

10x+2y=-30 x and y intercept

Answers

10 is the x intercept and 2 is the y intercept

is this relation a function? justify your answer.
please help!​

Answers

ayo the answer is c.

(i woulda just said tht it doesn't pass the vlt lma.o).

the answer i believe is a.

(0, 3); slope = -2

the answer is y= something idk

Answers

Answer:

Y= -2x+3

Step-by-step explanation:

the point (0,3) is where the y intercept is (since x is 0 and y is 3) and the -2 is the slope (or -2/1, it's still the same thing though).

Hoped this helped!

#4 1 The first term of the sequence is -7 and the common ratio is 1/4 First Five Terms are: The Sequence is (highlight one): Arithmetic or Geometric​

Answers

Answer:

In the picture, the first five terms are highlighted

This is a geometric sequence

Step-by-step explanation:

This is a geometric sequence because it has a common ratio, unlike arithmetic where it has a common difference.

Which statement correctly explains whether or not the values in the table represent a function of x

Answers

Answer:

Step-by-step explanation:

A relation is said to be a function when each input value (x-value) show a distinct output value (y-value).

From the table attached,

For input value x = 0, there are multiple values of output values (y = -2, -1, 0, 1, -2).

Therefore, data given in the table doesn't represent a function.

Answer: D

Step-by-step explanation: this is because of the input and output

Determine if the two fraction are equivalent, 65/4, 13/2

Answers

Answer:

The fractions are not equivalent. If you cross multiply 65 x 2 = 130 and 4 x 13 = 52. 130 > 52. Set them as a proportion. [tex]\frac{65}{4} = \frac{13}{2}[/tex]

They are not equal.

For 65/4 you cannot divide it by 2 and then get 13/2. You would get 32.5/2.

32.5/2 is not equal to 13/2

hope this helps :)

BRAINLIEST ANSWER!! REALLY EASY JUST NEED TO SHOW YOUR WORK!

-2x-10x+12=18

Answers

Answer:

x= -2.5

Step-by-step explanation:

Combine like terms, add 12 to both sides, then divide by the coefficient.

-2x-10x+12= 18

-12x+12=18

-12x=30

x=-2.5

3. Carl is swimming 6 feet UNDER the water and Candice is standing on a dock 10
feet ABOVE the water. How far apart are Carl and Candice? *

Answers

Answer:

16

Step-by-step explanation:

1. Use a vertical number line to count how many spaces are between -6 and 10.

Answer:

16 feet

Step-by-step explanation:

Candice is 10 feet above the dock while Carl is 6 below the dock, then you add 10 and 6

A scale model of the titanic is 107.5 inches long and 12.25 inches wide. The titanic itself was 882.75 feet long. How wide was it?

Answers

Answer:

1162.4

Step-by-step explanation:

1) A soccer tournament has 4 teams, A, B, C and D. Each team will play the other 3 teams once. In each game the winning team earns 3 points, losing team 0 points and ties earn 1 point to each team. After these games are completed, the two teams with the most points will play in the championship. If teams earn the same number of points then the tie-breaker is whichever team scored more goals. Team C loses their first two games to A and B. Are they automatically eliminated or is there still a chance they could advance? Explain how they could still advance or why they are already eliminated.​

Answers

Answer:

b

Step-by-step explanation:

Please help greatly appreciated :)

Answers

Step-by-step explanation:

we know ,

area of circle =πr^2

hence we get from the figure that the diameter of circle is 19 cm and we can find radius

r=d/2

r=18/2=9cm

area of semicircle =πr^2/2

area of Semi circle equals to =22*(9)^2/7/2

=127.2857143

Answer:

Today: Sunday, 11 October 2020

Hour: 23.05 WIB (Indonesian)

_________________________

D = 18

r = 18 ÷ 2 = 9

area of semicircle = πr²/2

area of semicircle = 3.142 . 9²/2

area of semicircle = 3.142 . 81/2

area of semicircle = 254.502/2

area of semicircle = 127.251 cm²

Kyle is making a frame for a rectangular piece of art. The length of the frame is 3 times the width, as shown below. A rectangle with a length of 3 x and height of x. If Kyle uses 18 feet of wood to make the frame, what is the length of the frame? Write the answer in decimal form.

Answers

Given :

A rectangle with a length of 3 x and height of x. If Kyle uses 18 feet of wood to make the frame.

To Find :

The length of the frame.

Solution :

We know, perimeter of the rectangle is given by :

[tex]P=2(l+b)\\\\P=2(3x+x)\\\\P=8x[/tex]

Now, it is given that 18 feet of wood is used.

So,

[tex]8x=18\\\\x = 2.25\ feet[/tex]

Therefore, length of frame is given by  3x = 6.75 feet.

Hence, this is the required solution.

Answer: A, 6.75

Step-by-step explanation: If the frame is 3 times the width and Kyle uses 18 feet them this the only correct option out of the other 3.

whats the answer 3 x + 7 = 19

Answers

Answer:

Step-by-step explanation:

3x +7 =19

3x=19 - 7

3x=12

x=12 :3

x=4

Answer:x=4Step-by-step explanation:3x+7=193x=19-73x=12x=12/3x=4plz mark me as brainilist

At a soccer match, for every goal team A scored, team B scored 3 goals. The ratio of the number of goals scored by team A to the number of goals scored by team B is

Answers

1:3

Team A scores 1 point for every 3 points Team B makes
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