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3 years ago

I need help fast I don't understand this at all.

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

7 0

Answer:

80. The correct answer is 80 days

Step-by-step explanation:

It shows your really small with t over 80

Lelechka [254]3 years ago

3 0

Answer:

population x time = 50 x (2) time divided by 80

so what I would do is...

50 x 2 then 100/80 is 1.25 move the decimal and round to get 20 then double to get 40 days but i tried and it time for me to eat

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Show work for full credit and brainliest!<br> 6% of what # is 105

Savatey [412]

6% = 0.06

105 / 0.06 = 1750

Answer

6% of 1750 = 105

Hope that helps

7 0

3 years ago

Read 2 more answers

The equations of three lines are given below. Line 1: y = - 3/4 x + 3 Line 2/8 x - 6y = 2 Line 3/- 3y = 4x + 7 For each pair of

Maru [420]

Answer:

No parallel lines

Lines 1 and 3 are perpendicular

Step-by-step explanation:

Given:

$Line\ 1:y = -\frac{3}{4}x + 3$

$Line\ 2: \frac{2}{8}x -6y = 2$

$Line\ 3: 3y = 4x + 7$

Required

Determine if they are parallel, perpendicular or not

The slope intercept of a line has the form:

$y = mx + b$

Where

$m = slope$

First, we calculate the slope of each lines

$Line\ 1:y = -\frac{3}{4}x + 3$

Compare the above to $y = mx + b$

$m_1 = -\frac{3}{4}$

$Line\ 2: \frac{2}{8}x -6y = 2$

$\frac{2}{8}x -6y = 2$

Make -6y the subject

$-6y = 2 - \frac{2}{8}x$

Divide through by -6

$y = -\frac{2}{6} + \frac{2}{8*6}x$

$y = -\frac{1}{3} + \frac{1}{8*3}x$

$y = -\frac{1}{3} + \frac{1}{24}x$

$y = \frac{1}{24}x-\frac{1}{3}$

Compare the above to $y = mx + b$

$m_2 = \frac{1}{24}$

$Line\ 3: 3y = 4x + 7$

$3y = 4x + 7$

Divide through by 3

$y = \frac{4}{3}x + \frac{7}{3}$

Compare the above to $y = mx + b$

$m_3 = \frac{4}{3}$

So, we have:

$m_1 = -\frac{3}{4}$

$m_2 = \frac{1}{24}$

$m_3 = \frac{4}{3}$

None of the slopes are the same, so none of the lines are parallel.

However, lines 1 and 3 are perpendicular.

This is shown below

When the slope of two lines satisfy the following condition, then they are perpendicular.

$m_1 = -\frac{1}{m_3}$

This gives:

$-\frac{3}{4} = -\frac{1}{4/3}$

$-\frac{3}{4} = -1/\frac{4}{3}$

Convert / to *

$-\frac{3}{4} = -1*\frac{3}{4}$

$-\frac{3}{4} = -\frac{3}{4}$

3 0

3 years ago

16 km<br> d) radius =<br> diameter =

TEA [102]

Answer:

the radius is half the diameter. radius = 8 diameter =16

Step-by-step explanation:

3 0

3 years ago

(PLS HELP <3)

tekilochka [14]

Answer:

1.17 dollars!

Step-by-step explanation:

We are given the equation c=1.17s

To break it down, it means that the cost in dollars=1.17 times amount of songs.

Lets plug in 1 for s.

1.17*1=1.17!

For one song, it will cost 1.17 dollars !

5 0

2 years ago

Read 2 more answers

Mary is traveling to Ecuador for her summer vacation. She looks at a map of the path of her flight. Her plane leaves from Florid

arlik [135]

Answer:

The coordinates of Ecuador is (7,8)

Step-by-step explanation:

Represent Ecuador with E, Panama with P and Florida with F

Given

F(x1,y1) = (5,16)

P(x,y) = (6,12)

Required

Determine the coordinates of E(x2,y2)

From the question, we understand that P is located at the midpoint of E and F.

Using midpoint formula, we have

(x,y) = (½(x1 + x2), ½(y1 + y2))

Substitute values for x,y,x1 and y2;

This gives

(6,12) = (½(5 + x2), ½(16 + y2))

By direct comparison of expression on both sides

½(5 + x2) = 6

½(16 + y2) = 12

Solving for the first equation

Multiply both sides by 2

5 + x2 = 6 * 2

5 + x2 = 12

Make x2 the subject of formula

x2 = 12 - 5

x2 = 7

Solving the second equation

Multiply both sides by 2

16 + y2 = 12 * 2

16 + y2 = 24

Make y2 the subject of formula

y2 = 24 - 16

y2 = 8

Hence, the coordinate of Ecuador is (7,8)

4 0

3 years ago