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3 years ago

8

How do you solve this question ? (Mr.borders has $145 in his savings account. He earns $36 a week mowing lawns. If mr. Borders s

aves his earnings, after how many weeks will he have $433 saved ?

2 answers:

sleet_krkn [62]3 years ago

8 0

First write a equation which would be 145+36x=433 then solve which would give you 8

Gennadij [26K]3 years ago

4 0

36 X 8 is 288
288 plus 145 that he has already is 433
it will take 8 weeks

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Please show me how to solve the initial value problem <br> y'=tanx y(pi/4)=3

AlexFokin [52]

The ODE is separable, i.e. you can write

$\dfrac{\mathrm dy}{\mathrm dx}=\tan x\iff\mathrm dy=\tan x\,\mathrm dx$

Integrating both sides gives the general solution.

$\displaystyle\int\mathrm dy=\int\tan x\,\mathrm dx$
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Given that $y\left(\dfrac\pi4\right)=3$ , we have

$3=-\ln\left|\cos\dfrac\pi4\right|+C$
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$3-\ln\sqrt2=C$

and so the particular solution to the IVP is

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4 years ago

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kozerog [31]

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7 0

3 years ago

-a + 28 = 14 solve for a

pochemuha

Answer:

a = 14

Step-by-step explanation:

28[-14]=14;

-14

5 0

3 years ago

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levacccp [35]

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3 years ago

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Use substitution to solve the system equation.<br><br><br> n=3m-11<br><br> 2m+3n=0

prohojiy [21]

Answer:

m = 3, n = -2.

Step-by-step explanation:

Substitute n = 3m - 11 in the second equation:

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11m = 33

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Substitute for m in n = 3m-11:

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3 years ago