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2 years ago

What is 70 percent of 20?

Mathematics

2 answers:

RideAnS [48]2 years ago

4 0

Answer:

Step-by-step explanation:

All you need to do is turn 70% into a decimal which is .70

Then multiply .70 and 20

.70*20

which gives you 14

EastWind [94]2 years ago

3 0

Change the percent to a fraction, which is 70/100. Then multiply that fraction by 20.

(70*20)/100 = 1400/100
Move the decimal place over 2 spots to the left to get 14

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The probability that it will rain tomorrow is 0.65

tatiyna

0.65 = 65% SO THE ANSWER IS 0.45 or 45%

3 0

2 years ago

Read 2 more answers

1 point

stepan [7]

Answer:

$y = 250x$

Step-by-step explanation:

The options are not given; however, the question can still be answered.

Given

Direct Proportion:

In 20 minutes, y = 250 bottles

Required

Determine the graph

In the first 20 minutes, y = 250

In the next 20 minutes, y = 250 + 250 = 500

In the next 20 minutes, y = 500 + 250 = 750

This gives a arithmetic sequence:

250, 500, 750, ........

Next, is to determine the equation of the sequence using;

$T_n = a + (n - 1)d$

In this case;

$T_n = y$

$x = n$

$a = 250$

$d = 750 - 500 = 500 - 250 = 250$

Substitute these values in the above formula;

$y = 250 + (x - 1) * 250$

Open Bracket

$y = 250 + 250x - 250$

Collect Like Terms

$y = 250x + 250 - 250$

$y = 250x$

Hence; the graph that shows the given description is the graph with equation $y = 250x$

4 0

2 years ago

In a chess club the probability that Shaun will beat Mike is 3/8 .

romanna [79]

Answer:

$\frac{10}{56} = 0.1786$ probability that Shaun loses both games

Step-by-step explanation:

Games are independent, so we find each separate probability, and multiply them.

In a chess club the probability that Shaun will beat Mike is 3/8.

So $1 - \frac{3}{8} = \frac{8}{8} - \frac{3}{8} = \frac{5}{8}$ probability that Shaun loses.

The probability that Shaun will beat Tim is 5/7 .

So $1 - \frac{5}{7} = \frac{2}{7}$ probability that Shaun loses.

What is the probability that Shaun loses both games?

This is:

$p = \frac{5}{8} \times \frac{2}{7} = \frac{5*2}{8*7} = \frac{10}{56} = 0.1786$

$\frac{10}{56} = 0.1786$ probability that Shaun loses both games

3 0

2 years ago

Find the domain. f(x)=x^2-81/x^2-2x-8

r-ruslan [8.4K]

The answer is

-2,4
basically all of the valid x values

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2 years ago

Solve all pls!!!!!!! :))

S_A_V [24]

Answer:

1) 3/4

2)7/8

3)5/6

Step-by-step explanation:

$\frac{1}{2} \times 2 = \frac{2}{4}$

2/4+1/4=3/4

$\frac{1}{2} \times 4 = \frac{4}{8}$

4/8+3/8=7/8

$\frac{1}{2} \times 3 = \frac{3}{6}$

$\frac{1}{3} \times 2 = \frac{2}{6}$

2/6+3/6=5/6

7 0

2 years ago