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3 years ago

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

Mathematics

2 answers:

Ber [7]3 years ago

7 0

Answer:

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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4 years ago

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Step-by-step explanation:

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3 years ago

Zoey made 6 1/2 cups of trail mix for a camping trip. She wants to divide the trail mix into 3/4 cup of servings. Twelve people

AlekseyPX

Answer:

Step-by-step explanation:

Given that:

Total number of cups of trail mix available for camping trip = $6\frac{1}{2}$

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To find:

Whether each person will be able to get the servings?

Solution:

Here, we can find the total number of servings by dividing the total number of cups of trail mix with the amount of one serving.

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Therefore, total number of servings available as per the given quantities:

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3 years ago

Eitan randomly selected volcanoes to travel to and study. After traveling, he had seen 13 cinder cone volcanoes, 18 shield volca

larisa [96]

Answer:

Probability of selecting one volcano in the world on which to conduct an extensive study is given by

$\frac{1}{37}$

Step-by-step explanation:

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8 0

3 years ago

Read 2 more answers

Make a conjecture about the sum of the first 15 positive even number

erica [24]

I conclude that the sum will be even because any even number can be represented by 2n where n is a whole number
and even numbers are 2 apart, so
the sum of the first 15 are
2n+2(n+1)+2(n+2) etc until we get to 2(n+14)
we can undistribute the 2 from all of them and get
2(n+n+1+n+2...n+14)
and we are sure that whatever is in the parenthasees is a whole number because whole+whole=whole
therefor, the sum is even

if you did want to find the sum then
an=2n
the 15th even number is 30
the first is 2
S15=15(2+30)/2=15(32)/2=15(16)=240
which is even

6 0

3 years ago