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3 years ago

6

Please be quick! I need this as soon as possible!

2 answers:

Ber [7]3 years ago

7 0

Answer:

<h2>64%</h2>

Step-by-step explanation:

$\bold{METHOD\ 1:}\\\\\begin{array}{ccc}25g&-&100\%\\\\16g&-&p\%\end{array}\qquad\text{cross multiply}\\\\\\25p=(16)(100)\\25p=1600\qquad\text{divide both sides by 25}\\\boxed{p=64}$

$\bold{METHOD\ 2}:\\\\\begin{array}{cccc}25&-&100\%&\text{divide both sides by 25}\\\\\dfrac{25}{25}&-&\dfrac{100\%}{25}\\\\1&-&4\%&\text{multiply both sides by 16}\\\\(1)(16)&-&(4\%)(16)\\\\16&-&64\%\end{array}$

Katarina [22]3 years ago

5 0

Answer:

64%

Step-by-step explanation:

The nickel= 9/25

The copper=16/25

1. Multiply by 4 to get a total of 100

nickel=36/100

copper= 64/100

Sorry if it is wrong but i hope i was right

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6-√8 divide √2-1

agasfer [191]

Answer:

4 $\sqrt{2}$ +2

Step-by-step explanation:

$\frac{6-\sqrt{8}}{\sqrt{2}-1}$

= $\frac{6-\sqrt{8}}{\sqrt{2}-1}$ × $\frac{\sqrt{2}+1}{\sqrt{2}+1}$

= $\frac{(6-\sqrt{8})(\sqrt{2}+1)}{2-1}$

=6 $\sqrt{2}$ + 6 - $\sqrt{8}\sqrt{2}$ - $\sqrt{8}$

=6 $\sqrt{2}$ + 6 - 4 - $\sqrt{8}$

=6 $\sqrt{2}$ + 2 - $\sqrt{8}$

=6 $\sqrt{2}$ + 2 - 2

=4 $\sqrt{2}$ +2

for $\sqrt{8}$ = 2 $\sqrt{2}$ ,

$\sqrt{8}$ = $\sqrt{2*2*2}$

= ( $\sqrt{2}$ )^2 × $\sqrt{2}$

=2 × $\sqrt{2}$

5 0

3 years ago

What is equivalent to (3 - 2x) (4x - 7)

bonufazy [111]

Answer:

-8x^2+26x-21

Step-by-step explanation:

(3-2x)(4x-7)

12x-8x^2-21+14x

-8x^2+12x+14x-21

-8x^2+26x-21

7 0

3 years ago

Read 2 more answers

(3x+4)-(-8-2x) simplified

goldenfox [79]

Answer:

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Step-by-step explanation:

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3 years ago

Which geometric figure are always paraelograms

kolbaska11 [484]

I don’t know I hope u get it

3 0

2 years ago

Plis help with this. - - -

madreJ [45]

Answer: 16

Step-by-step explanation:

multiplying by negative exponents can be a little tricky. So (1/4x)^-2 becomes 16/x^2 = __/x^2 so the missing number is 16

4 0

3 years ago