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3 years ago

Estimate a 15% tip on a dinner bill of $31.53 by first rounding the bill amount to the nearest ten dollars.

Mathematics

2 answers:

Nookie1986 [14]3 years ago

6 0

Answer:

Should be around 4.5

Step-by-step explanation:

If you round 31.53 to the nearest ten dollars, you get 30, 15 percent of 30 is 4.5

yan [13]3 years ago

6 0

4.73 if it’s one person & if it’s for 2 people then 2.36 per person

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Find the slope to y=8/9x-9 and the y intercept

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$The \ general \ form \ of \ a \ straight-line \ equation \ is: \\\\ y=mx+b\\\\where \ "m " \ is \ the \ slope \ of \ the \ line \ and \ "b" \ is \ y -intercept \\ \\ y= \frac{8}{9}x-9 \\\\m=\frac{8}{9}\\b=-9 \\ \\Answer: \ Slope \ is \ equal \ to \ 6 \\ y-intercept \ is \ equal \ ( -9).$

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3 years ago

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Find the sum of the series using the formula

Gnom [1K]

Answer:

We have a1 = 27 and r = 3 (because 27:9 = 3; 9:3 = 3; 3:3 = 1);

Then s = 27 / (1 - 3) ;

Finally, s = - 27 / 2;

Step-by-step explanation:

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3 years ago

The sum of three numbers in order is 57. The equation that represents this is x + (x + 1) + (x + 2) = 57. Which value of x from

muminat

Answer:

Step-by-step explanation:

x + (x + 1) + (x + 2) = 57

x + x + 1 + x + 2 = 57

x + x + x + 1 + 2 = 57

3x + 3 = 57

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x = 54/3

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4 years ago

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nikitadnepr [17]

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3 years ago

A photo of an ant in a science book is increased 565% as large as the actual size. If the ant is 14 millimeters, what is the siz

murzikaleks [220]

Answer:

<u>93.1 millimeters</u> is the size of the ant in the photo.

Step-by-step explanation:

Given:

A photo of an ant in a science book is increased 565% as large as the actual size.

If the ant is 14 millimeters.

Now, to find the size of the ant in the photo.

The actual size of ant = 14 millimeters.

The size of the ant in the photo is increased 565% of 14 millimeters.

Now, to get the size of the ant in the photo we put an expression:

According to question:

$14+565\%\ of\ 14\\\\=14+\frac{565}{100}\times 14\\\\=14+5.65\times 14\\\\=14+79.1\\\\=93.1\ millimeters.$

Therefore, 93.1 millimeters is the size of the ant in the photo.

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4 years ago