1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
SVETLANKA909090 [29]
3 years ago
8

It is estimated that there are 10^20 grains of sand on a beach in Florida in April. The beach is heavily eroded by tourists over

the peak summer holiday season. Approximately one hundredth of the beach is removed as a result of this erosion. How many grains of sand are removed from the beach?
Mathematics
1 answer:
lyudmila [28]3 years ago
5 0
\bf \textit{how much is }\frac{1}{100}\quad of \quad 10^{20}?\implies \stackrel{\textit{one hundredth}}{\cfrac{1}{100}}\cdot 10^{20}\implies \cfrac{1}{10^2}\cdot 10^{20}
\\\\\\
10^{-2}\cdot 10^{20}\implies 10^{-2+20}\implies 10^{18}
\\\\\\
1,000,000,000,000,000,000~grains
You might be interested in
At midnight,the temperature is at 34 degress Fahrenheit.The temperature decreases 3 degrees each hour until 2:00 am. The tempera
Charra [1.4K]
1 am = 31
2am= 28

3am=30
4am =32
5am=34
6am=36
7am= 38 degrees
4 0
3 years ago
You need 3 1/2 cups of flour for each batch of cupcakes. How many whole batches can make if you have 17 cups of flour? Show two
rosijanka [135]

<u>ANSWER:</u>

4 batches of cupcakes can be made.

<u>SOLUTION: </u>

Given, we need 3\frac{1}{2} cups of flour for each batch of cupcakes. And we have 17 cups of flour.

We need to find how many batches can be made.

1st way:

We will get the number of batches when we divide the available cups with cups required for one batch.

Available cups = 17 and required cups for one batch = 3\frac{1}{2} = \frac{7}{2} cups

number of batches = $\frac{17}{\frac{7}{2}}$

$=\frac{17}{1} \times \frac{2}{7}$

$=\frac{34}{7}$ = 4.857

As the number of batches can’t be fraction, we will neglect the fractional part.

2nd way:

Let the number of batches be x.

Then, cups of flour required for batches must be less than available flour

(x)(\frac{7}{2}) < 17

(x)(7) < (2)(17)

7x < 34

x < \frac{34}{7}

x < 4.857

As the number of batches must be an whole number, x becomes 4.

Hence, 4 batches of cupcakes can be made.

3 0
3 years ago
Rectangle MNOP has diagonals NP and MO. Determine the length of NP if NP = 7x - 4 and MO = 3x + 19.
Alexeev081 [22]

Answer:

Give me heart and 5 stars I don’t need your smile

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Does this table represent a function ? Why or why not
ollegr [7]

The answer should be A

Hope this helps

8 0
3 years ago
Read 2 more answers
Please make it simple
Lilit [14]

Answer: He earned $340 while mowing lawns and while working at the pizza place he earned $1,060. The math is 1,400 divided by 2 you get 700 then you add 360 to that and then subtract the 1,060 from 1,400 you'll get 340 for mowing and 1,060 for pizza

4 0
2 years ago
Other questions:
  • Please help me with his math question ​
    5·1 answer
  • 2 Points
    11·1 answer
  • Prove that triangle with side lengths of x^2-1, 2x, x^2+1 is a right triangle.
    5·1 answer
  • a rental car costs $26 per day plus $0.30 per mile. if someone has $350 to spend and needs to drive the car 60 miles each day, f
    6·2 answers
  • Anyone please !!!!!!
    6·1 answer
  • How many angles on the diagram have a measure of 70º?
    13·2 answers
  • The arch support of a bridge can be modeled by y=-0.00125x^2, where x and y are measured in feet. a) the width of the arch is 80
    9·1 answer
  • How to sketch this function y=x(squared) -2x+3
    14·1 answer
  • What is the solution to the equation = 25?<br><br> x = 5<br> x = 10<br> x = 25<br> x = 125
    11·1 answer
  • How are these triangles congruent
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!