2 years ago

5 of 5

Mathematics

1 answer:

andreev551 [17]2 years ago

4 0

Answer:

The hat cost £5 while the a shirt cost £6

Step-by-step explanation:

What I did was Guess and check until I finally found each of there amount.

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Which of the given expressions results in 0 when evaluated at x = 5? A. 5x(x − 7) B. (x + 7)(x − 2) C. (x + 5)(x − 8) D. (x − 8)

vovangra [49]

I choose D. (x-8)(x-5)

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2 years ago

Read 2 more answers

Which of these expressions are equivalent to 0.05(x-40)

Neporo4naja [7]

Answer:

0.05x-2

Step-by-step explanation:

0.05 times x is 0.05x

-40 times 0.05 is -2

put it together and it is 0.05x-2

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3 years ago

How do you solve this equation<br> 5(8x-2)=270

raketka [301]

5(8x-2)=270
distribute the 5 into 8x-2
5*8x-5*2=270
you get
40x-10=270
combine like terms
40x=280
divide both sides by 40 to find x
x=7

5 0

2 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7Bx%7D%20%2B1%7D%7Bx-%5Csqrt%7Bx%7D%20%2B1%7D" id="TexFormula1" title="\frac

zubka84 [21]

Answer:

Step-by-step explanation:

$\frac{\sqrt{x}+1 }{x-\sqrt{x}+1 }=\frac{\sqrt{x}+1}{(x+1)-\sqrt{x}}\\\\=\frac{(\sqrt{x}+1)([x+1]+\sqrt{x})}{([x+1]-\sqrt{x})+([x+1)+\sqrt{x}])}\\\\=\frac{\sqrt{x}*x+\sqrt{x}*1+\sqrt{x}*\sqrt{x}+1*x+1*1+1*\sqrt{x}}{(x+1)^{2}-(\sqrt{x})^{2}}\\\\\\=\frac{x\sqrt{x}+\sqrt{x}+x+1+x+\sqrt{x}}{x^{2}+2x+1-x}\\\\=\frac{x\sqrt{x}+2\sqrt{x}+2x+1}{x^{2}+x+1}\\\\$

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2 years ago

Your food costs are $1700. Your total food sales are $8500. What percent of your food sales do the food costs represent?

iren [92.7K]

20% is correct

0.2 x 8,500 = 1,700

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3 years ago