All categories

3 years ago

Fatima wants to add a 20% tip on a $56 restaurant bill.

2 answers:

8 0

It seems like it would be 1. I don’t know how to do that but 56 is rounded to 60 and if you find 10% and double it that would make it 20 I assume

NNADVOKAT [17]3 years ago

4 0

Answer:

The answer is A) Round 56 to 60, find 10%, then double.

Step-by-step explanation:

You would round to 60 because 56 is closer to 60 than 50 then 10% is half of 20% so you would double it after you found 10% of 60.

Hope this helps :)

You might be interested in

Which is greater 16/25 or 65%

sesenic [268]

65 % is bigger than 16/25

5 0

2 years ago

Read 2 more answers

Answer each question. What is 35% of 90x? What percent of 16x is 9x?

Ket [755]

Answer:

35% of 90x = 31.5

16x is 9x =

Step-by-step explanation:

35 /100 x 90 = 31.5

6 0

3 years ago

Read 2 more answers

9. At the football club there are 3 boys for every 2 girls. There are

77julia77 [94]

Answer:

hay 20 chicas

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Please the the working. A car bought for $200 and sold for $250, what was the percentage gain of the cost price?

Vesna [10]

9514 1404 393

Answer:

25%

Step-by-step explanation:

A percentage change is calculated using the formula ...

pct change = ((new value) - (old value))/(old value) × 100%

For your numbers, this is ...

pct change = (250 -200)/200 × 100% = 50/200×100% = 25%

The selling price was 25% more than the cost price.

6 0

2 years ago

Find the standard deviation of 21, 31, 26, 24, 28, 26

Vesnalui [34]

Given the dataset

$x = \{21,\ 31,\ 26,\ 24,\ 28,\ 26\}$

We start by computing the average:

$\overline{x} = \dfrac{21+31+26+24+28+26}{6}=\dfrac{156}{6}=26$

We compute the difference bewteen each element and the average:

$x-\overline{x} = \{-6,\ 5,\ 0,\ -2,\ 2,\ 0\}$

We square those differences:

$(x-\overline{x})^2 = \{36,\ 25,\ 0,\ 4,\ 4,\ 0\}$

And take the average of those squared differences: we sum them

$\displaystyle \sum_{i=1}^n (x-\overline{x})^2=36+25+4+4+0+0=69$

And we divide by the number of elements:

$\displaystyle \sigma^2=\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n} = \dfrac{69}{6} = 11.5$

Finally, we take the square root of this quantity and we have the standard deviation:

$\displaystyle\sigma = \sqrt{\dfrac{\sum_{i=1}^n (x-\overline{x})^2}{n}} = \sqrt{11.5}\approx 3.39$

8 0

2 years ago