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3 years ago

Answer please ANSWRR ANSWER ANSWER

Mathematics

1 answer:

pochemuha3 years ago

5 0

A is the answer to the question

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Joel has a bag with 128 pieces of candy in it. He gives his sister 25% of the candy. How many pieces of candy does Joel give his

Charra [1.4K]

Answer:

$Joel \: \: gave \: \: his \: \: sister \: \: 32 \: \: pieces\: \: of \: \: candy$

Step-by-step explanation:

$\frac{x}{128} = \frac{25}{100}$

$(x)100 = (25)128$

$(x)100 = 3200$

$\frac{(x)100}{100} = \frac{3200}{100}$

$x = \frac{3200}{100}$

$x = 32$

$Joel \: \: gave \: \: his \: \: sister \: \: 32 \: \: pieces \: \: of \: \: candy$

3 0

3 years ago

The first 4 terms of a 10-term geometric series are listed below. Which expression represents the sum

Stella [2.4K]

Given:

First 10 term of a geometric series are:

$\dfrac{16}{25}+\dfrac{8}{5}+4+10+...+a_10$

To find:

The expression that represents the sum of the series.

Solution:

The first term of the given geometric series is:

$a_1=\dfrac{16}{25}$

The common ratio of the given geometric series is:

$r=\dfrac{a_2}{a_1}$

$r=\dfrac{\dfrac{8}{5}}{\dfrac{16}{25}}$

$r=\dfrac{8}{5}\times \dfrac{25}{16}$

$r=\dfrac{5}{2}$

The sum of first n terms of a geometric sequence is:

$S_n=\dfrac{a_1(1-r^n}{1-r}$

Where r is the common ratio.

Putting $a_1=\dfrac{16}{25},r=\dfrac{5}{2},n=10$ in the above formula, we get

$S_{10}=\dfrac{16}{25}\left(\dfrac{(1-(\dfrac{5}{2})^{10}}{1-\dfrac{5}{2}}\right)$

Therefore, the correct option is C, i.e., $\dfrac{16}{25}\left(\dfrac{(1-(\dfrac{5}{2})^{10}}{1-\dfrac{5}{2}}\right)$ .

5 0

3 years ago

Which expressions are equivalent to 2(2x + 4y + x − 2y)?

Sholpan [36]

Answer:

Step-by-step explanation:

2(x+2y)=2x+4y

2x+4y

So option B is the correct answer

6 0

3 years ago

Read 2 more answers

Please help ASAP i don’t understand this !!

igor_vitrenko [27]

Answer:

f(-7) = -3

Step-by-step explanation:

f(x) = ( x-2)/3

Let x = -7

f(x) = ( -7-2)/3

= (-9)/3

= -3

7 0

3 years ago

Read 2 more answers

Which point lies on the graph of the equation 10y = 3x - 11?

GaryK [48]

Answer:

A. (2,-0.5)

Step-by-step explanation:

A pair of coordinates is always (x,y) so

If you insert the numbers into the equation you get

10(-0.5) = 3(2) - 11

-5 = 6 - 11

-5 = -5

Therefore (2,-0.5) is the point that likes on the graph

5 0

3 years ago