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3 years ago

Expand: 5 ( n - 1)?? could you please show working out to. Thanks

1 answer:

4 0

You expand 5(n-1) by multiplying 5 by n which gives you 5n and then multiply 5 by -1 so that gives you -5 and therefore the answer is 5n-5

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Write an equation in point-slope form of the line that passes through (-1, – 4) with slope -2.

Rom4ik [11]

Y+4=-2(x+1)

This is the point slope form (y-y1) =m(x-x1)

I hope it will helped!

4 0

3 years ago

Find the slope C(-8,-7) and D (13,-1

DaniilM [7]

So you will use slope formula which is m = (y2 -- y1) / (x2 -- x1)

-1 minus -7=6

13 minus -8=21

Remember it changes to a positive Keep,Change,Change

So its 6/21

Or 1/4

Ask questions if you still need help

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3 years ago

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Step2247 [10]

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3 years ago

Read 2 more answers

It costs $15 to send 3 packages through a certain shipping company. Consider the number of packages per dollar. a. Find the cons

Contact [7]

x is the number of packs 3x=15$ x=5$

6 0

3 years ago

A business sells kicking tees by mail for 3 each the shipping charge is 5 the function p=n+5 shows how the number of tees n rela

melamori03 [73]

<u>Answer: </u>

When you buy 2 , 3 and 4 tees , price you pay are 10.33 unit price , 13 unit price and 15.667 unit price respectively.

<u>Solution: </u>

Information provided in the question seems to be less . so assuming following two things.

1)Given function p = n + 5 do not include shipping cost as shipping cost is also dependent on number of tees.

2)If shipping charges for 3 tees is 5 , then shipping charges of 1 tee is $\frac{5}{3}$

When you buy 2 tees , n = 2

Price = p = n+5 = 2+5 = 7

Shipping charges =( $\frac{5}{3}$ ) x 2 = $\frac{10}{3}$

So total price you pay for two tees = 7 + ( $\frac{10}{3}$ ) = 7 + 3.3333 = 10.3333 unit price.

When you buy three tees , n = 3

Price = p = n+5 = 3+5 = 8

Shipping charges =( $\frac{5}{3}$ ) x 3 = 5

So total price you pay for two tees = 8 + 5 = 13 unit price.

When you buy four tees, n = 4

Price = p = n+5 = 4+5 = 9

Shipping charges =( $\frac{5}{3}$ ) x 4 = $\frac{20}{3}$

So total price you pay for two tees = 9 + ( $\frac{20}{3}$ ) = 47/3 = 15.667 unit price.

Hence when you buy 2 , 3 and 4 tees , price you pay are 10.33 unit price , 13 unit price and 15.667 unit price respectively.

3 0

3 years ago