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2 years ago

You saved $250.00 to spend over the summer. You decide

2 answers:

5 0

F(x)= -25x + 250

-25 represents the amount of money that you use in one week.
x represents how many weeks.
250 represent how much you saved.

Ludmilka [50]2 years ago

4 0

Answer:

1 minor thing. you made a mistake it is $25.00 not $25,00. But the answer is this.

Step-by-step explanation:

250.00÷25.00= 10.

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Factorise (x+y)^3- (x^3+y^3) plzzz answer

lilavasa [31]

Answer:

$\huge \boxed{ \boxed{ \tt 2xy(x + y)}}$

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

factoring
PEMDAS

<h3>tips and formulas:</h3>

(a+b)³=a³+3a²b+3ab²+b³
a³+b³=(a+b)(a²-ab+b²)

<h3>let's solve:</h3>

$\sf \: use \: 2nd \: formula \: to \: simplify : \\ \sf(x + y {)}^{3} - (x + y)( {x}^{2} - xy + {y}^{2} )$
$\sf factor \: out \: (x + y) : \\ (x + y )\{(x + y)^{2} - ( {x}^{2} - xy + {y}^{2} \}$
$\sf simplify : \\ (x + y {)} \{ {x}^{2} + 2xy + {y}^{2} - {x}^{2} + xy - {y}^{2} \}$
$\sf collect \: and \: combine \: like \: terms : \\ (x + y) \{2xy \}$
$\sf \: rewrite : \\ 2xy(x + y)$

and

we are done

5 0

3 years ago

Suppose y varies directly with x. If y = 4 when x = -2, find x when y = 6.

daser333 [38]

Answer:

Step-by-step explanation:

3 0

3 years ago

The area of the rectangle shown is 66m^2

tekilochka [14]

Answer:

143cm

Step-by-step explanation:

Area=2(l+b)

Substitute the values for the variables.

66=2(l+22/5)

66=2xl+2x<u>22</u>

66=2l+<u>44</u>

Cross multiply

66x5=2l+44

330=2l+44

Collect like terms

-2l = 44-330

-2l = -286

-2 -2

l=143

The missing length is 143m.

3 0

2 years ago

The Juarez family is making a cross- country trip on Saturday they traveled 450.8 miles on Sunday they traveled 604.6 miles how

vaieri [72.5K]

Answer:3

Step-by-step explanation:$;$$;!’

8 0

3 years ago

RIGHT ANSWER ONLY!

natima [27]

Hey there, Lets solve this step by step

<span>The probability of choosing the shaded region is equal to the fraction of the total area that the shaded region is 18 / 50 .
</span>
Formula = Area of unshaded region = Total rectangle Area − Shaded area

Answer = (D)

5 0

3 years ago