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3 years ago

What are fractions used for?

Mathematics

2 answers:

mixas84 [53]3 years ago

8 0

Fractions are used for dividing things into equal portions.

user100 [1]3 years ago

5 0

Fractions are important because they tell you what portion of a whole you need, have, or want. fractions are used in baking to tell how much of an ingredient to use. fractions are used intelling time; each minute is a fraction of the hour.

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Find the equation of the line which passes through the point (7,2) and is perpendicular to y=5x-2

MariettaO [177]

Answer:

$\displaystyle y=-\frac{1}{5}x+\frac{17}{5}$

Step-by-step explanation:

<u>Equation of a line</u>

A line can be represented by an equation of the form

$y=mx+b$

Where x is the independent variable, m is the slope of the line, b is the y-intercept and y is the dependent variable.

We need to find the equation of the line passing through the point (7,2) and is perpendicular to the line y=5x-2.

Two lines with slopes m1 and m2 are perpendicular if:

$m_1.m_2=-1$

The given line has a slope m1=5, thus the slope of our required line is:

$\displaystyle m_2=-\frac{1}{m_1}=-\frac{1}{5}$

The equation of the line now can be expressed as:

$\displaystyle y=-\frac{1}{5}x+b$

We need to find the value of b, which can be done by using the point (7,2):

$\displaystyle 2=-\frac{1}{5}*7+b$

Operating:

$\displaystyle 2=-\frac{7}{5}+b$

Multiplying by 5:

$10=-7+5b$

Operating:

$10+7=5b$

Solving for b:

$\displaystyle b=\frac{17}{5}$

The equation of the line is:

$\boxed{\displaystyle y=-\frac{1}{5}x+\frac{17}{5}}$

7 0

3 years ago

Alenjandra spent her birthday money on a video game that cost $d, a controller for $13, and a memory card for $16. She had a $5

Gala2k [10]

Add 16 and 13 and 5 then after you got your total count up to 75 use a paper to help you solve then the amount you counted up to will be the amount of the cost of the video game

8 0

3 years ago

1/5 times 1/5 times 100

IgorLugansk [536]

Answer:

1/1000

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

On a number line, the coordinates of j, k, l, m, n are −10.5, −4, −1, 1.5, 4 respectively. find the lengths of the two segments.

nordsb [41]

Answer:

JK = 6.5
KM = 5.5
not congruent

Step-by-step explanation:

JK = K-J = (-4) -(-10.5) = 6.5

KM = M -K = 1.5 -(-4) = 5.5

6.5 ≠ 5.5, so the segments are not congruent.

6 0

3 years ago

Maribel is offered a job as a paralegal at an annual base salary of $47,000. In addition, the company will pay the following ben

Misha Larkins [42]

Answer:

66763

Step-by-step explanation:

47000*(1+0.105+0.17)+338+6500

5 0

2 years ago