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3 years ago

Please help I need it

Mathematics

1 answer:

vitfil [10]3 years ago

3 0

Answer:

$\frac{1}{3}$

Step-by-step explanation:

just consider the lengh:

$\frac{1}{3}$

or the width :

$\frac{3}{9}$

or the area:

$\sqrt{ \frac{3 \times 1}{9 \times 3} } = \sqrt{ \frac{3}{27} } = \sqrt{ \frac{1}{9} } = \frac{1}{3}$

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I geologist note is that the land alone at fault line moved 24.8 cm over the past 175 years on average how much did the land mor

zmey [24]

First, let's establish a ratio between these two values. We'll use that as a starting point. I personally find it easiest to work with ratios as fractions, so we'll set that up:

$\frac{24.8\ cm}{175\ years}$

To find the distance per year, we'll need to find the unit rate of this ratio in terms of years. The word unit refers to the number 1 (coming from the Latin root uni- ); a unit rate involves bringing the number we're interested in down to 1 while preserving the ratio. Since we're looking for the distance the fault line moves every one year, we'll have to bring that 175 down to one, which we can do by dividing it by 175. To preserve our ratio, we also have to divide the top by 175:

$\frac{24.8\ cm}{175\ years}\div \frac{175}{175} \approx 
\frac{0.14\ cm}{1\ year}$

We have our answer: approximately 0.14 cm or 1.4 mm per year

3 0

3 years ago

The sum of two number is 14 and their different 6

STatiana [176]

8+6=14 and 14-8=6 so the 2 numbers are 8 and 6

8 0

4 years ago

Read 2 more answers

tina invests in $1,200 in a account with an interest rate of 6.25%. How many years for the account to reach $11,900.

nikklg [1K]

Hello!

To find the amount of years it will take for Tina's account to reach $11,900, we need to first, write an equation, then we would solve for the amount of years it would take using logarithms.

1. Write an equation

Since this question is a compound interest problem, we would write the equation in a format like this: y = a(1 + n)^x.

In this equation, y is the final value, a is the beginning value, n is the interest rate, and x is the amount of years. Since we are given the values of y, a, and n, we can substitute those values into the equation.

11900 = 1200(1 + .0625)^x

Notice that 6.25% was converted to 0.0625. To convert percentages to a decimal, divide the percent by 100.

2. Solve for x using logarithms

11900 = 1200(1.0625)^x (divide by 1200 to both sides)

11900/1200 = 1.0625^x (take the log of both sides)

log 11900/1200 = x log 1.0625 (divide both sides by log 1.0625)

log 11900/1200 / log 1.0625 = x

x = 37.8429...

This can be rounded to about 37.84 years.

Therefore, it will take about 37.84 years for Tina's account to reach 11,900 dollars.

6 0

3 years ago

Also pls show the steps for solving thanks

Burka [1]

Answer:

the first step is always start with the numbers that are in parenthesis the bonnets then division then multiplication and division from left to right.

Step-by-step explanation:

8 0

3 years ago

What's the rule for 830 823 817 812 808

yanalaym [24]

Answer:

Each time you subtract one less then before

Step-by-step explanation:

I know this because from 830 to 823 they subtracted by 7 and then from 823 to 817 they subtracted by 6 so it keep going down the line.

7 0

3 years ago