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3 years ago

15

How can you tell how many tens are in a number

1 answer:

Delvig [45]3 years ago

8 0

Based off of the first digit in a two-number value like 50 means there's 5 tens.

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A line passes through point A (14,21). A second point on the line has an x-value that is 125% of the x-value of point A and a y-

seropon [69]

Answer:

The equation of the line in point-slope form is $y-21 = - \frac{3}{2}\cdot (x-14)$ .

Step-by-step explanation:

According to the statement, let $A(x,y) = (14,21)$ and $B(x,y) = (1.25\cdot x_{A},0.75\cdot y_{A})$ . The equation of the line in point-slope form is defined by the following formula:

$y-y_{A} = m\cdot (x-x_{A})$ (1)

Where:

$x_{A}$ , $y_{A}$ - Coordinates of the point A, dimensionless.

$m$ - Slope, dimensionless.

$x$ - Independent variable, dimensionless.

$y$ - Dependent variable, dimensionless.

In addition, the slope of the line is defined by:

$m = \frac{y_{B}-y_{A}}{x_{B}-x_{A}}$ (2)

If we know that $x_{A} = 14$ and $y_{A} = 21$ , then the equation of the line in point-slope form is:

$x_{B} = 1.25\cdot (14)$

$x_{B} = 17.5$

$y_{B} = 0.75\cdot (21)$

$y_{B} = 15.75$

From (2):

$m = \frac{15.75-21}{17.5-14}$

$m = -\frac{3}{2}$

By (1):

$y-21 = - \frac{3}{2}\cdot (x-14)$

The equation of the line in point-slope form is $y-21 = - \frac{3}{2}\cdot (x-14)$ .

5 0

3 years ago

Write a mathematical expression for the word expression. Seven times a number plus one

abruzzese [7]

Answer:

7x +1

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Tell me the answer to 10 times 2000 equal blank thousand equal blank

timofeeve [1]

10x2000= 20,000
2000
X 10
--------
0000
20000

5 0

3 years ago

What is 5.5 written as a fraction in simplest form

julia-pushkina [17]

5.5 as a fraction is 11/2

6 0

3 years ago

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Solve the equation 3=8^x for x<br>

Furkat [3]

Answer:

x=2 2/3

Step-by-step explanation:

The equation also means that x=8^3

8/3=2 2/3

7 0

3 years ago