Mathematics Middle School

10. A cliff on the seashore is eroding at the rate of 17 centimeters per year. Write and solve an equation to find the number of
years in which the cliff will erode 85 centimeters.

Answers

Answer 1

Answer:

The number of  years in which the cliff will erode 85 centimeters are:

5 years.

Step-by-step explanation:

To solve the question in the text, you must create a formula that includes the rate (17 centimeters per year) and a variable representing the time (t), how I show below:

f(t) = 17t

Where:

t = time in years

Remember that where are not symbols between two numbers o variables, it means you must multiply (17t actually is 17 * t). Now you only must replace t by years 1 per 1 until obtain the value of 85 (the eroding wanted):

f(1) = 17(1) = 17 f(2) = 17(2) = 34 f(3) = 17(3) = 51 f(4) = 17(4) = 68 f(5) = 17(5) = 85

How you can see, when the time is equal to 5, the f(t) or the eroding is 85, the value we wanted.

Related Questions

Find the surface area of the triangular prism.

Find the surface area of the triangular prism.

Answers

Answer:

I think it is 108

Step-by-step explanation:

The answer should be 108

I need help with this graph?!

I need help with this graph?!

Answers

Answer:

Im pretty sure its D. all numbers greater than or equal to -3

Step-by-step explanation:

The answer would be D

I need help with this plz and thank you

I need help with this plz and thank you

Answers

Answer:

The answer is: w  =  − 30

The Wagner school store is having a sale! At the sale this week, a life sized stuffed animal of Wagner’s mascot is being sold for $158.40. This is a 52% discount of the original price. What is the original price? If necessary, round to the nearest cent.

Answers

Answer:

$240.768 = $241

Step-by-step explanation:

$158.40 + 52% = $240.768 = $241 (rounded)

Answer:

Step-by-step explanation:

Tammy takes a taxi home from the airport. The taxi fare is $2.10 per mile, and she gives the driver a tip of $5. Tammy pays a total of $49.10. Which equation can be used to determine the distance between Tammy's home and the airport?

Answers

2.10x+5=49.10
Is the equation just solve for x

Answer:

Tammy home is 21 miles away from the airport.

Step-by-step explanation:

I tried out different numbers and either had to go up or go down. You'll have to make sure the decimal ends with .10 because she tipped the driver $5 and no change. 2.10 x 21 = 44.1 plus the $5 tip it would be $49.10

can someone help me with this

can someone help me with this

Answers

the answer would be -14 pemdas yk
it would be -14! glad I could help you!

please help me with this question

please help me with this question

Answers

I pretty sure it’s 2 for both since the pattern is -8, divided by 7
For the first one x is 6 and the second one y is -22 because the slope is 1.
18/18=1

7 divided by ? equals 56

Answers

7/x=56
7=56x
7/56=x
0.125=X
392 divided by 7 is equals =56

8th grade math i mark as brainliest

8th grade math i mark as brainliest

Answers

The answer is 25%

P(A and B) = P(A) x P(B)
= 3/6 x 3/6 (3 because there are 3 values greater than 3 on a 6 sided die)

=1/2 x 1/2

=1/4 or 25%
Answer is 25 I did it already

A group of 24 students spent 1,296 minutes studying for an upcoming test. What prediction can you make about the time it will take 150 students to study for the test?

It will take them 174 minutes.
It will take them 2,592 minutes.
It will take them 8,100 minutes.
It will take them 8,745 minutes.

Answers

Answer:

It will take them 8,100 minutes.

Step-by-step explanation:

If it takes a group of 24 students 1,296 minutes to study for an upcoming test, it takes 54 minutes for each student. (=> 1,296/24 = 54)

150 x 54 minutes = 8,100 minutes.

It will take them 8,100 minutes.

8,100 Minutes just had the same question

5. The cost of 3 burritos is $25.50. If the cost is proportional to number of
burritos ordered, which of the following prices is NOT an equivalent rate?

Answers

Answer:

its $26.75

Step-by-step explanation:

Answer:

26.75£ The answer .

EASY

the quotient of two rational numbers is negative. What can u conclude about the dividend and the dividor? Express ur answer in two or more complete sentences.

Answers

twotwoooooowoowowowowo
woah twotwotototoowowowoo

Is this polygon regular or irregular?

Is this polygon regular or irregular?

Answers

Answer:

Make me a Brainlist pls

Step-by-step explanation:

It's an Irregular polygon

Answer:

irregular

Step-by-step explanation:

regular shapes have all equal sides while irregular polygon sides aren't congruent. lemme know if I'm right. Goodluck!

How many fifths are in 1.8?
4 fifths
16 fifths
5 fifths
8 fifths
9 fifths
33.
How many thirds are in -3 2/3
9 thirds
2 thirds
5 thirds
11 thirds
34.
Write as a decimal. 2 7/100
-2.007
-2.7
-2.07
35.
Write as a decimal. 7/8
0.875
0.825
0.75
0.80
36.
Write as a decimal. 21/30
-0.75
-21.30
-0.30
-0.21
-0.7

Answers

Answer:

In 1.8 are 9 fifth, since 1 is 5 fifth and 0.8 is 4 fifth.

In - 3 2/3 are 11 thirds, since 3 is 9 thirds and 2/3 obviously is 2 thirds.

2 7/100 as a decimal is 2.07, since 2.7 would be 2 7/10 and 2.007 would be 2 7/1000.

7/8 as a decimal is 0.875, just type 7÷8 into a calculator and you got it.

21/30 as a decimal is 0.7, you can also just type 21÷30 into a calculator here.

Question one is: 1.8 = 9 fifths

Find the original price given a total amount of $26.98 and tip rate of 14%.

(if you can, please show work! Thanks so much!)

Answers

the answer would be $23.20
It would be $23.20.

Explanation: 14% of $23.20 would be $3.772.

How long does it take a train traveling at a constant rate of 50 miles per hour to
travel 350 miles?

5 hours
300 hours
7 hours
175 hours

Answers

it would be 7 hours so the top person is correct

Determine which of the following are the solutions to the equation below. x2=13

A. +/13


B.+/26


C.26


D.13

Answers

Answer:

I think its A. +/13

Step-by-step explanation:

I hope this can help!

It’s A or C ! Hope it helped :)

pls help ill give brainliest

pls help ill give brainliest

Answers

3. 7
4. -6>y>-12

5. b=<7 or b=>5

6. m>1 or m>5

7. 3


8. 1>k=>1

If my math is correct these are right

Answer:

Step-by-step explanation:

3/8

4/-8

5/6

6/6

7/4

8/-3

What is the shaded area of the polygon?
A) 6
B) 8
C) 10
D) 20

What is the unshaded area of the polygon?
A) 10
B) 15
C) 26
D) 30

What is the shaded area of the polygon?A) 6B) 8C) 10D) 20What is the unshaded area of the polygon?A)

Answers

Answer:

2x5=10 so 1 is C

Step-by-step explanation:

I think the second one is 26  cause the large unshaded area one is 20 and the small one is 6 so I don't know there but I think it's c

Answer:

1 is A)6   2 B(15

Step-by-step explanation:

it is A)6 because it is 2 x 3=6

it is 2 B(15 because 5 x 3=15

can you mark me as brainilest : )

This is 8th grade math on khan academy, correct answers only ty- 7 points
have a gud day folks

This is 8th grade math on khan academy, correct answers only ty- 7 pointshave a gud day folks

Answers

Answer:

9² or 9^2

Step-by-step explanation:

Because the base is the same on the top and the bottom which is "9", you would either add or subtract the top and bottom exponent based on the arithmetic symbol used.

Because the arithmetic symbol division sign is used, you subtract the top exponent by the bottom giving you the answer nine to the power of two.

Answer:

The correct answer is \(9^2\)

Step-by-step explanation:

9 is the base and 7-5=2. so n=2.

A bag contained 18 red marbles, 14 green marbles, and 20 blue marbles. A marble was randomly pulled, the color recorded, and then put back into the bag. This table above shows the results after 25 pulls.

What was the relative frequency of selecting a red or blue marble?


Red:8
Blue8
Green9

Answers

Number of red marbles pulled = 8

Number of blue marbles pulled = 8

Total marbles pulled = 25

Relative Frequency = Total Frequency / Total number of data values

Relative Frequency of red marble = 8/25

                                                         = 32%

Relative Frequency of blue marble = 8/25

                                                         = 32%


Learn more about Relative Frequency here

Visit —

https://brainly.com/question/3857836

Hope my answer helps you✌️

Mark BRAINLIEST

The first person is right

Which statement
is true

Which statement is true

Answers

The answer would be b
it’s d) ruby reads at a rate of 20 pages per day

the ratio of the number of oranges to apples to bananas is 8:5:2. if there are 120 fruits in total, how many bananas are there

Answers

Answer:

Step-by-step explanation:

To find the number of bananas, we need to determine the proportion of bananas in the total number of fruits based on the given ratio.

Let's assume that the ratio of oranges, apples, and bananas can be represented by 8x, 5x, and 2x, respectively, where x is a common multiplier.

The sum of the parts in the ratio is 8x + 5x + 2x = 15x.

We know that the total number of fruits is 120. Therefore, we can set up the following equation:

15x = 120

To solve for x, we divide both sides of the equation by 15:

x = 120 / 15

x = 8

Now that we know the value of x, we can find the number of bananas by multiplying it by the corresponding part of the ratio:

Number of bananas = 2x = 2 * 8 = 16

So, there are 16 bananas in total.

We can add all the parts to the ratio and get 15. Out of 15 parts, 2 are bananas. Now we can calculate how many fruits are in one part. One fifteenth of 120 is 8, so there are 8 fruits in one part. 2 parts are bananas, so multiplying 8 with 2 gives us our answer, 16.

Evaluate.

(−13+0.3(−13) +1) ^2

What is the value of the expression?

Enter your answer as a simplified fraction in the box.

Answers

Answer: 289/900

Explanation: I did this before

ANSWER
25281
100
1 Calculate: (-13 + 0.3 x (-13) + 1)2
252.81
2 Convert to fraction: 252.81
25281
100
Show
Evaluate.(13+0.3(13) +1) ^2What is the value of the expression?Enter your answer as a simplified fraction

Use the best-fit line below to predict the value of y when x = 7

Use the best-fit line below to predict the value of y when x = 7

Answers

Answer:

the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis

The answer to the question is 6

What is the P(landing on blue or pink) from a spinner that has 4 red, 6 blues, and 2 pink?

A
50%

B
2/3

C
6/10

D
1/12

Answers

Your answer is B
4 reds 6 blues 2 pinks and to 12 6+2 is 8
8/12 is 2/3 simplified

Your answer is B

4 reds 6 blues 2 pinks and to 12 6+2 is 8

8/12 is 2/3 simplified

                                                                                                                                       

How many unit cubes with side lengths of 1/2 unit are needed to fill the right rectangular prism?

How many unit cubes with side lengths of 1/2 unit are needed to fill the right rectangular prism?

Answers

Answer:

4

Step-by-step explanation:

I GIVE BRAINLIST!!!! A survey asked students to choose their favorite social networking website. The results are shown in the table.

a. What fraction of the students chose Website A? Write your answer in simplest form.

___ chose Website A.

b. What percent of the students chose Website C?


____% chose Website C.

I GIVE BRAINLIST!!!! A survey asked students to choose their favorite social networking website. The

Answers

Answer:

A. 7/16

B 11/40

Answer:A
Because I had these same answer on a test and I got it right

Two friends plant a tree and record the height of the tree each following year to track its growth. The data can be represented by the linear model y = 4.3z +3.25, where y represents the height of the tree, in feet, and z represents the number of years since it was planted.
Based on the linear model, what is the expected height of the tree in 8 years?

3.25
4.3
31.2
37.65

Answers

Answer:

D.) 37.65

Step-by-step explanation:

I know that 8 is an input based on this word problem. So, then I plug in the 8 for z and solve to find the expected height of the tree in 8 years.

y=4.3z+3.25

y=4.3(8)+3.25

y=34.4+3.25

y=37.65

In 8 years the expected height of the tree is 37.65

The answer is D. 37.65

Select all ratios equivalent to 1:2 A. 10:20 B. 12:24 C. 8:16

Answers

Answer:

A, B, ad C

In order to find the ratio of something you must:

Add the parts of the ratio to find the total number of parts.

Find the value of each part of the ratio by dividing the number by the total number of parts calculated in step 1.

Multiply each part of the original ratio by the value of each part calculated in step 2.

I think A and c ( I think )
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