what is 3n? i dont know how to do matrices

Answer:

You can divide and see if its devided by 3, and if its not in the times table, you will have a decimal

Step-by-step explanation:

Answer:

m = 55t

t = m/55

Step-by-step explanation:

According to the formula for calculating speed expressed as;

Speed = distance/time

Given;

Distance = 55mph

required:

distance as a function of t

time as a function of distance m

If distance is m and time is t

From the formula;

55 = m/t

m = 55t

Hence the equation to solve for miles m is m = 55t

To get t, we will cross multiply from 55 = m/t;

55t = m

Divide both sides by 55

55t/55 = m/55

t = m/55

Hence the equation to solve for time in hours is t = m/55

Answer:

m = -8

b = 0

Step-by-step explanation:

In slope intercept form [ y = mx + b ], m = slope and b = y-intercept.

We aren't given a b value, but we are given a m value which is -8.

Best of Luck!

Answer:I am pretty sure that it is that you add 26 and 71 and then subtract it by 180 and then the other one is across so it would be the same answer so it would be 83

Step-by-step explanation: I hope this helped

Answer: majic makes people foeat

Step-by-step explanation: i eat gatorade

Answer:

Pennywisee

Step-by-step explanation:

Answer: x+1 = y/2

Step-by-step explanation:

X is increasing by 1

(Adding 1 to each number)

For Y, divide it by 2

-4/2 = -2

-2/2 = -1, etc.

Answer:

$3000

Step-by-step explanation:

If the remainder is spent on other costs, then that means 60% of the tuition as spent on other costs.

To find the total tuition, divide 1800 by 0.6:

1800/0.6

= 3000

So, their tuition was $3000

Answer:

the ans is 5 I think only

Answer:

75,000 gears

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The sum spent has to be either equal to or less than 40. So r many rides, each of them being 1.50, plus 10 dollars has to equal to less or equal to 40 dollars.

Answer:

The answer is B

The greatest number of rides Daniel can go on is 20.

Step-by-step explanation:

Total: The same or less than 40

Fair Admission: 10

ride: 1.50x

40 ≤ 10 + 1.5r

To solve:

40 ≤ 10 + 1.5r

40 - 10 ≤ 10 + 1.5r - 10

30 ≤ 1.5r

30 ÷ 1.5 ≤ 1.5r ÷ 1.5

20 ≤ r

The greatest number of rides Daniel can go on is 20.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!

Answer:

y = 1x - 1

Step-by-step explanation:

[tex]\frac{y2-y1}{x2-x1}\\\frac{1-(-4)}{2-(-3)}\\\frac{1+4}{2+3}\\\frac{5}{5}=1\\y=1x+b\\1=1(2)+b\\1 = 2 + b\\-1 = b\\y = 1x-1[/tex]

Answer:

6.5 inches

Step-by-step explanation:

you would divide 65 by 10 feet to get the answer in inches which is 6.5

Answer:

|10|

Step-by-step explanation:

Since 10 is negative (below the sea level), 10 is 10 spaces away from zero on the number line, meaning your answer is |10|.

Answer:

-1/6

Step-by-step explanation:

im assuming you meant multiply them? if so then

1         -2            -2           -1

---   *  ---    =       ---    =    ---

3         4              12          6

or

1/3=4/12 and -2/4=-6/12

4/12*-6/12=-24/144=-1/6

Answer:

-1/6

Step-by-step explanation:

just multiply 1/3x2/4=

and then in front of the answer put the negative sign

Answer:

the answer is 2...........jpjpjp ion knowwwwwwwww

Step-by-step explanation:

Answer:

y = 9x/5 + 50

Step-by-step explanation:

We are represent the information as coordinate (x,y)

If the cost for an order of 100 kilograms of steel bars is $230, this is expressed as (100, 230)

Also if the cost for an order of 150 kilograms of steel bars is $320, this is expressed as;

(150, 320)

Find the equation of a line passing through the points. The standard form of the equation is expressed as y = mx+c

m is the slope

c is the intercept

Get the slope;

m = y2-y1/x2-x1

m = 320-230/150-100

m = 90/50

m = 9/5

Get the y-intercept by substituting m = 9/5 and any point say (100, 230) into the expression y = mx+c

230 = 9/5(100)+c

230 = 9(20)+c

230 = 180 + c

c = 230-180

c = 50

Get the required equation

y = mx+c

y = 9/5 x + 50

Hence an equation for the cost of an order of steel bars (y) in terms of the weight of steel bars ordered (x) is y = 9x/5 + 50

Answer:

461 divided by 10^3 is 0.461.

Step-by-step explanation:

Hope this helps and I hope u have an Amazing day!!

Answer:

18.84

Step-by-step explanation:

The formula for circumference is 2(pi)r, I think. The radius is 3. 3 times 2 is 6. 6 times 3.14 is around 18, I think.

hope this helps

Answer:

A

Step-by-step explanation:

Answer:

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Answer:

The effect of doubling the diameter is increased the area to paint as 4 times. So, paint needed is 4 times than it was before. And the area is increased by 9 times when the diameter is increased by a factor of 3. So, paint needed is 9 times than before.

Step-by-step explanation:

Please remember the concept

If side lengths are in the ratio a : b

Then the area are in the ratio of a^2 :b^2

The volume are in the ratio of a^3 :b^3,

When diameter is doubled, the area ratio becomes [tex]x^{2} :(2x)^{2}[/tex] which is simplified to [tex]x^{2} :4x^{2}[/tex]

So, the area is increased by 4 times.

According to this concept , the diameter is increased by the scale factor 3.

Let the diameter of tank is 'x', so the diameter becomes "3x"

So, it's area ratio would be [tex]x^{2} :(3x)^{2}[/tex]

If we simplify it we get [tex]x^{2} :9x^{2}[/tex]

We conclude that  area to be increased by 9 times.

Answer:

i believe those line by it mean the opposite of so the answer would be 13

Answer:

13

Step-by-step explanation:

The absolute value is the distance of a number from 0. In this case it is 13. Hope this helps!! :)

Answer:

4

Step-by-step explanation:

Answer:

Creo que es 40

Step-by-step explanation:

80+15x+(11x-4)=180

26x=104

x=4

Entonces

11x-4 --> 11*4-4 = 40

Answer:

5!60

Step-by-step explanation:

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Answer: 8(8+3)

Step-by-step explanation:

64 + 24 is the same as 8*8 + 8*3. Therefore you can "pull out" the 8 and that is your answer