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3 years ago

5

You will need 100 feet of fencing to put all the way around a rectangular garden. the length of the garden is 30 feet. what is t

he width?

2 answers:

Helga [31]3 years ago

8 0

The answer is 20 hope i helped

Ber [7]3 years ago

7 0

On side is 20 Bc L= 30 (L x 2)
=> 60
=> 100 - 60
=> 40 = W
=> W / 2
=>20
1 Side is 20
Hope I Helped

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Expand and simplify -2(x + 4x^2) + 3(x^2 + 2x)

Vlad1618 [11]

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1 year ago

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Bas_tet [7]

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Step-by-step explanation:

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2 years ago

A students needs at least seven hours of sleep each night.The student goes to bed at 11:00 p.m. and wakes up up before 6:30 a.m.

andriy [413]

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3 years ago

The fourth term in an arithmetic sequence is 18 and the seventh term is 39. If the first term is a1 , which is an equation for t

evablogger [386]

Answer:

<h2> aₙ = 7n - 10</h2>

Step-by-step explanation:

The nth term: $a_n=a_1+d(n-1)$

So:

a₄ = a₁ + 3d

18 = a₁ + 3d ⇒ 3d = 18 - a₁

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39 = a₁ + 6d

39 = a₁ + 2(18 - a₁)

39 = a₁ + 36 - 2a₁

39 = 36 - a₁

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So the nth term:

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2 years ago

Suppose you received a job offer with a starting salary of $48,500 per year and a guaranteed raise of $1200 per year. Find the n

LuckyWell [14K]

Answer:

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Step-by-step explanation:

<u>This is going to be an arithmetic progression:</u>

48500, 48500 + 1200, 48500 + 1200*2, ...

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a₁ = 48500

<u>and the common difference is </u>

d = 1200

<u>Sum of AP is:</u>

S = (a₁ + aₙ)*n/2 = (2a₁ + (n - 1)d)*n/2

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(2*48500 + (n - 1)*1200)*n/2 = 321000
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1200n² + 95800n - 642000 = 0
6n² + 479n - 3210 = 0

<u>Solving we get a positive root of:</u>

n ≈ 6.21 and it rounds up to 7 years

3 0

2 years ago