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4 years ago

Driving me nuts this one.

1 answer:

4 0

Hmmm let hmm come to think..5£ is a bit too much for some junk glass anyway =) hehee, anyhow. so 5cents then

let us nevermind the price for now, and see how many grams are needed for the 6hours

so 1 bottle (500 grams), gives Adam 7.5 minutes of oven time
how many grams will it be for 6hrs or 6 * 60 = 360 minutes?

$\bf \begin{array}{ccllll}
grams&minutes\\
\textendash\textendash\textendash\textendash\textendash\textendash&\textendash\textendash\textendash\textendash\textendash\textendash\\
500&7.5\\
x&360
\end{array}\implies \cfrac{500}{x}=\cfrac{7.5}{360}
\\\\\\
\textit{that'll give you, }\boxed{?}\textit{ grams of glass for 6hrs}\\\\
\textit{divide by 1000 to make it Kgs}\implies \cfrac{\boxed{?}}{1000}Kgs
\\\\\\
\textit{is 5cents per Kgs of glass, so }\cfrac{\boxed{?}}{1000}\cdot 5$

that's how many "p" (pennies? pence? pounds?) will it be for 6hrs of oven time for Adam

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3 years ago

Caroline, Krutika and Natasha share some sweets in the ratio 4:3:3. Caroline gets 9 more sweets than Natasha. How many sweets do

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Step-by-step explanation:

Let

x ---> number of sweets that Caroline gets

y ---> number of sweets that Krutika gets

z ---> number of sweets that Natasha gets

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$\frac{x}{y}=\frac{4}{3}$

$x=\frac{4}{3}y$ ----> equation A

$\frac{x}{z}=\frac{4}{3}$

$x=\frac{4}{3}z$ ----> equation B

$y=z$ ---> equation C

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$x=z+9$ ---> equation D

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3 years ago

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tino4ka555 [31]

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3 years ago

Which equation has the solutions X=1 +-SQRT 5?

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Answer:

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Step-by-step explanation:

We are given the root of the equation

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If we are given solution of the equation then find equation using formula.

If a and b are the solution of equation then equation would be (x-a)(x-b)=0

Here, $a=1+\sqrt{5} , b=1-\sqrt{5}$

Equation form would be $(x-1-\sqrt{5})(x-1+\sqrt{5})=0$

Now we simplify the above equation to get correct option.

$x^2-x+x\sqrt{5}-x+1-\sqrt{5}-x\sqrt{5}+\sqrt{5}-5=0$

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So, D is correct. $x^2-2x-4=0$

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4 years ago

Read 2 more answers

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<h3>The system of linear inequalities to model the situation are:</h3>

$x+y\leq 20\\\\7.50x+6y\geq 92$

Solution:

Let "x" be the time spent in dog walking job

Let "y" be the time spent in car wash attendant

Given that,

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"at most" means "less than or equal to" 20

Therefore,

$x+y\leq 20 ---------- eqn 1$

Also given that,

Your dog- walking job pays $7.50 per hour

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Thus, a inequality is framed as:

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$7.50x+6y\geq 92 ------------ eqn 2$

Thus eqn 1 and eqn 2 is the system of linear inequalities to model the situation

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