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ololo11 [35]
3 years ago
14

Can someone help me? ​

Mathematics
1 answer:
Rasek [7]3 years ago
3 0

Step-by-step explanation:

given \:  - 5n = 4m

making m the subject first by dividing through by 4

\frac{ - 5}{n}  =  \frac{4m}{4}

m =  \frac{ - 5n}{4}

from the question, given n = -1 ,0 ,1

so when n= -1

m =  \frac{ - 5( - 1)}{4}

m =  \frac{5}{4}

when n=0

m =  \frac{ - 5(0)}{4}

m =  \frac{0}{4}

m = 0

when n=1

m =  \frac{ - 5(1)}{4}

m =  \frac{ - 5}{4}

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What is the different between trade and cash discount and interest.
kkurt [141]

Answer:

Trade discount is given on the catalogue price of the goods while the cash discount is given on the invoice price. Trade discount is granted with the aim of increasing the sales in bulk quantity, whereas Cash discount is granted to facilitate a quick payment. ... A trade discount is shown as a deduction in the invoice.

8 0
3 years ago
Find the missing value so that the two points have a slope of -3/10 (x,-8) and (-5,-5)
rosijanka [135]

Answer:

5

Step-by-step explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

-3/10 = (-5--8)/(-5-x)

-3/10 = (-5+8)/(-5-x)

Using cross multiplication

-3 (-5-x) = 10*(-5+8)

Simplify

-3(-5-x) =10(3)

Divide by -3

-3/-3(-5-x) =10(3)/-3

-5-x = -10

Add 5 to each side

-5-x+5 = -10+5

-x=-5

Divide by -1

x=5

4 0
3 years ago
The length of a rectangle is 3 cent. less than four times it’s width. it’s area is 10 sq cent.
Schach [20]

Answer:

i dontnt underzstand it

Step-by-step explanation:

8 0
4 years ago
A company knows that unit cost C and unit revenue R from the production and sale of x units are related by Upper C equals StartF
levacccp [35]

Answer:

$990 per unit.

Step-by-step explanation:

The Unit Cost (C) and Unit Revenue R from the production and sale of x units are related by the function:

C=\dfrac{R^2}{220000} +3221

We are required to find the rate of change of revenue per unit when the cost per unit is changing by $9 and the revenue is ​$1,000.

Rate of Change of C,

\dfrac{dC}{dt}=\dfrac{R}{110000} \dfrac{dR}{dt} \\\dfrac{dC}{dt}=\$9, R=\$1000\\9=\dfrac{1000}{110000} \dfrac{dR}{dt}\\\dfrac{dR}{dt}=9 \div \dfrac{1000}{110000}\\=9 X  \dfrac{110000}{1000}\\\dfrac{dR}{dt}=\$990 $ per unit$

The Revenue is changing at a rate of $990 per unit.

6 0
3 years ago
Which is a factor of 15xy − 45x − 6y + 18?
Lisa [10]
I see right away that 3 can be factored out of <span>15xy − 45x − 6y + 18.

The quotient is 5xy - 15x - 2y + 6, so that 

</span>15xy − 45x − 6y + 18   =   3(5xy − 15x − 2y + 6)   (2 factors)
<span>
               or                        3 [ 5x(y-1] - 2 [y-3])


</span>
7 0
3 years ago
Read 2 more answers
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