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3 years ago

What is the percent increase from 48 to 50?

Mathematics

2 answers:

andrezito [222]3 years ago

6 0

Answer:

4 percent

Step-by-step explanation:

hhhhh

Novosadov [1.4K]3 years ago

4 0

Answer:

Step-by-step explanation:

Since percentages are counted with % (100), we multiply 50 by 2 to get 100. We also 48 by 2 to get 96. Then we subtract 96 from 100 to get 4%.

48 increases by 4% o get 50.

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Find the quotient mentally. Convert a fraction into a decimal

nekit [7.7K]

Answer:

7.5

Step-by-step explanation:

6 0

3 years ago

In a certain year, the average e-mail user sent or received 114 e-mails each day. The number of e-mails received was 6 more then

Tems11 [23]

Answer:

78 emails

Step-by-step explanation:

Given

Represent sent emails with x and received with y.

So, we have:

$x + y = 114$ -- First statement

$y = 6 + 2x$ -- Second statement

Required

Determine the number of emails received (y)

Make x the subject in $x + y = 114$

$x = 114 - y$

Substitute 114 - y for x in $y = 6 + 2x$

$y = 6 + 2(114 - y)$

Open bracket

$y = 6 + 228 - 2y$

Collect Like Terms

$2y+y = 6 + 228$

$3y = 234$

Divide by 3

$y = 234/3$

$y = 78$

7 0

3 years ago

Can someone explain to me how to do this question? It needs to be simplified and no decimals or fractions.

Masteriza [31]

$\sqrt{180} - \sqrt{45 } \\ = \sqrt{2 \times 2 \times 3 \times 3 \times 5} - \sqrt{3 \times 3 \times 5 } \\$

Taking common

$\sqrt{3 \times 3 \times 5} ( \sqrt{4} - 1) \\ = 3 \sqrt{5} (2 - 1) \\ = 3 \sqrt{5}$

Hope it helps mate

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5 0

4 years ago

Gina started with the circle (x−2)2+y2=16. She translated it 4 units left and 1 unit down. Then she reduced the radius by 1 unit

olchik [2.2K]

Answer:

(x + 2)² + (y + 1)² = 9

Step-by-step explanation:

Gina started with a circle with the given equation as,

(x - 2)² + (y - 0)² = 16

Since, standard equation of a circle is,

(x - a)² + (y - b)² = r²

Here (a, b) is the center of the circle and 'r' is the radius.

Therefore, from the given equation of the circle,

Center of the circle → (2, 0)

Radius of the circle → √16 = 4 units

She translated this circle 4 units left and 1 unit down.

Rule for the new center after translation will be,

(x, y) → (x - 4, y - 1)

(2, 0) → (2 - 4, 0 - 1)

→ (-2, -1)

Coordinates of the new center → (-2, -1)

Then she reduced the radius by 1 units.

Therefore, radius of the new circle = 4 - 1 = 3 units

Now we substitute these values in the standard equation of the circle to get the equation of the new circle.

(x + 2)² + (y + 1)² = 3²

(x + 2)² + (y + 1)² = 9

5 0

3 years ago

bought a soccer ball for 19.95 and bought a pair of sneakers that cost three times the as much as the ball she had 7.80 left how

lilavasa [31]

Answer:$87.69

Step-by-step explanation:

8 0

3 years ago