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4 years ago

13

How do you find the slope intercept form for a slope that is -2 passing through points (4,-3)

1 answer:

Veseljchak [2.6K]4 years ago

8 0

To find the slope intercept form, you plug in the slope and the points given and find whats missing
y=mx+b
slope is -2
given points are (4,-3)

-3=-2(4)+b (multiply -2 and 4)
-3=-8+b (add 8 to both sides)
5=b

so the equation for the slope intercept form would be
y=-2x+5

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How many cubes with side 2cm are needed to make a cube with side 6cm

Ilya [14]

Answer:

27 cubes

Step-by-step explanation:

<u>Cube with side 2 has volume:</u>

2³ = 8

<u>Cube with side 6 has volume:</u>

6³ = 2³*3³ = 8*27

<u>Number of cubes:</u>

8*27/8 = 27

7 0

3 years ago

The driving distance between Manchester and London is 195 miles. Faris intends to travel from Manchester to London by coach. The

s2008m [1.1K]

Question:

The driving distance between Manchester and London is 195 miles. Faris intends to travel from Manchester to London by coach. The coach will leave Manchester at 3:30 pm. Faris assumes that the coach will travel at an average speed of 50 mph; using his assumption workout Faris’s arrival time in London

Answer:

$Arrival = 7:24pm$

Step-by-step explanation:

Given

$Distance = 195\ miles$

$Speed = 50mi/hr$

$Take\ off = 3:30\ pm$

Required

Determine the time of arrival

First, we need to calculate the time to complete the journey.

$Speed = \frac{Distance}{Time}$

Make Time the subject

$Time= \frac{Distance}{Speed }$

Substitute values for Distance and Speed

$Time= \frac{195mi}{50mi/hr}$

$Time= 3.9hr$

The arrival time is:

$Arrival = Take\ off + Time\ Taken$

$Arrival = 3:30pm + 3.9\ hours$

Split

$Arrival = 3:30pm + 3\ hours + 0.9\ hours$

$Arrival = 6:30pm + 0.9\ hours$

Convert 0.9 hours to minutes

$Arrival = 6:30pm + 0.9 * 60\ mins$

$Arrival = 6:30pm + 54\ mins$

$Arrival = 7:24pm$

7 0

3 years ago

(6a+11) <br><br>(2a + 83) <br><br>A) 21<br><br>B) 17<br><br>C) 18 <br><br>D) 20 <br><br>(20points)

Neporo4naja [7]

(6a+11)=(2a+83)
6a+11=2a+83
-11 -11
6a=2a+72
-2a -2a
4a=72
4/4a=72/4
a=18
The solution is 18

6 0

3 years ago

Two numbers have a sum of 32. One number is 6 more than the other. Find the numbers

Vlad [161]

<h2>Answer: 13 & 19</h2>

<h3>Step-by-step explanation:</h3>

Let the bigger number be 'U' and the smaller number 't'.

Since the two numbers have a sum of 32, then U + t = 32.

& since one number is 6 more than the other, the U - 6 = t

⇒ U + U - 6 = 32

2U = 38

U = 19

By substituting fot the value of U we found,

19 - 6 = t

t = 13

<h3>∴ the numbers are 13 & 19.</h3>

5 0

3 years ago

Read 2 more answers

Sammy picks blueberries and cherry tomatoes.

Nezavi [6.7K]

Answer:

Step-by-step explanation:

b = pints of blueberries

c = pints of cherry tomatoes

3b + 2c = 28

2b = c

First, substitute 2b into the c of the first equation.

3b + 2(2b) = 28

3b + 4b = 28

7b = 28

b = 4

Then, substitute 4 into the b of the second equation.

2(4) = c

c = 8

Then, substitute both values into the first equation to check.

3(4) + 2(8) = 28

12 + 16 = 28

7 0

3 years ago