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3 years ago

What is the area of a circle that has a diameter of 18"?

2 answers:

7 0

Since the formula for the area of a circle is Pi x r squared, the area would be 81 x Pi (you teacher may want you to use Pi as 3.14 or put it in your calculator).

Xelga [282]3 years ago

6 0

R=9 but the sun is 254.469

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Paul's income is 40% less than Rex's income, Quentin's income is 20% less than Paul's income, and Sam's income is 40% less than

irakobra [83]

Answer:

Ratio of Quentin new income to Sam new income is $\frac{11}{12}$

So option (a) will be correct option

Step-by-step explanation:

Let Rex income is 100

Then Paul income is 40 % less than Rex income 100 - 100×0.4 = 100-40 = 60

And Quentin's income is 20 % less than Paul income

So Quentin's income is 60 - 60×0.2 = 60-12 = 48

Sam income is 40% less than Paul income

So Sam income = 60 - 60×0.4 = 60 - 24 = 36

Now Rex give 60% income Sam

So Sam new income = 36 + 100×0.6 = 60+36 = 96

And Rex give 40% of his income to Quentin's

So Quentin's new income = 48 + 100×0.4 = 40+48 = 88

Now ratio of Quentin's new income to the Sam new income $=\frac{88}{96}=\frac{11}{12}$

So option (a) will be correct answer

3 0

3 years ago

What is the correct comparison symbol for 4/5 and 2/7

Goshia [24]

Answer:

4/5 is greater than 2/7 (>)

Visualize:

4/5 > 2/7

7 0

3 years ago

Mara put down 7.5% on the purchase of her new home. If she put down $14.175, find the purchase price of the home

Novosadov [1.4K]

Given:

Mara put down 7.5% on the purchase of her new home.

She put down $14.175.

To find:

The purchase price of the home.

Solution:

Let x be the purchase price of the home.

According to the question,

Put down = 7.5% of the purchase price of the home.

$14.175=\dfrac{7.5}{100}\times x$

$14.175=0.075x$

Divide both sides by 0.075.

$\dfrac{14.175}{0.075}=x$

$189=x$

Therefore, the purchase price of the home is $189.

3 0

3 years ago

The sum of the speeds of two trains is 720.1 miles per hour. If the speed of the first train is 5.9 mph faster than that of the

Troyanec [42]

Train 1 = (x) = 357.1 mph
Train 2= (x + 5.9) = 363 mph

7 0

3 years ago

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

klemol [59]

Answer: 148.5

Step-by-step explanation:

well there is no real question here but cody is 165 which means you have to multiply that by 10% or 0.10 which gives you 16.5 and subtract that from the total

4 0

3 years ago