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Paul [167]
3 years ago
11

Help from 1-3 show work please!!

Mathematics
1 answer:
prohojiy [21]3 years ago
6 0
1. N represents the length of each side

2. <span>(n) + (n+1) + (n + 2) 
(Not to sure of this one, xd)

3.
</span><span>30x-40</span>
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The perimeter of a triangle is 150 inches. the width is 12 inches find the length of the base
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8 0
3 years ago
4.13×10^-8×0.04×10^5
Alik [6]
I hope this helps you

6 0
4 years ago
Ella bought a 2 bedroom unit 12 years ago for $95 000 and recently sold it for $280 000 (after deducting selling costs).
Pani-rosa [81]

C.P. = $95000

S.P. = $280000

a. Profit

= S.P. - C.P.

= $280000 - $95000

= $185000

b. Let the profit% of C.P. be x.

(x/100) × $95000 = $185000

=> x/100 = $185000/$95000

=> x/100 = 37/19

=> x = (37/19) × 100

=> x = 3700/19

=> x = 194 14/19

So, profit percent of buying price is 194 14/19%.

c. Let the profit% of S.P. be x.

(x/100) × $280000 = $185000

=> x/100 = $185000/$280000

=> x/100 = 37/56

=> x = (37/56) × 100

=> x = 3700/56

=> x = 925/14

=> x = 16 1/14

So, profit percent of selling price is 16 1/14%.

d. Buying price percentage profit sounds better as far as Ella is concerned.

8 0
3 years ago
At the moment a hot iron rod is plunged into freezing water, the difference between the rod's and the
jonny [76]

Answer:

<h2>The function is</h2><h2>D(t) = 100 \times( \frac{40}{100} )^{t}</h2>

Step-by-step explanation:

At t = 0 the difference is 100 degree celsius.

After one second the temperature difference will be 100 - \frac{100\times60}{100} = 100(1 - \frac{60}{100} )

After two second, the difference will be 100(1 - \frac{60}{100} )(1 - \frac{60}{100} ) = 100(1 - \frac{60}{100} )^{2}

Hence, it can be written that,

D(t) = 100 \times(1 - \frac{60}{100} )^{t} = 100 \times( \frac{40}{100} )^{t}

5 0
4 years ago
Read 2 more answers
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