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2 years ago

7

What is 2.85 as a mixed number

2 answers:

sveticcg [70]2 years ago

4 0

2 85/100
The numbers with the slash in the middle is a fraction.

stepladder [879]2 years ago

4 0

2 85/100 the numbers with the slash in the middle is a fraction

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A man drove 5 miles directly east from his home, made a left turn at an intersection, and then traveled 11 miles duc north to hi

lubasha [3.4K]

Answer: About 12.083

Explanation:
In order to solve this you would use Pythagorean theorem.

You are given the length of the two legs (5 and 11)

So by plugging in 5 and 11 into A Squared plus B Squared = C Squared, you get that C^2= 146.

By finding the square root of both sides you get square root of 146, which is approximately 12.803

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2 years ago

Find 3 different ratios that are equivalent 7:3 explain why these ratios are equivalent

kkurt [141]

Answer:

7:3, 14:6, 28:12

multiples.. hope that helps.

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3 years ago

Two angles in a triangle have measures of 25° and 55°.

rosijanka [135]

Answer:

B) 100

Step-by-step explanation:

All 3 interior angles of a triangle add up to 180 so:

x + 25 + 55 = 180

x + 80 = 180

x = 180 - 80

x = 100

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3 years ago

A population of mice is increasing exponentially. On Monday there were 120 most. One month later there were 132 most. Ready func

djyliett [7]

Answer:

$y=120 * 1.1^x$ --- function

The monthly rate is 10%

Step-by-step explanation:

Given

Let

$x \to months$

$y \to mice$

So, we have:

$(x_1,y_1) = (0,120)$ --- Monday

$(x_2,y_2) = (1,132)$ --- One month later

Required

The function

The function is represented as:

$y=ab^x$

In $(x_1,y_1) = (0,120)$ , we have:

$120 = a * b^0$

$120 = a * 1$

$120 = a$

$a=120$

In $(x_2,y_2) = (1,132)$ , we have:

$132 = a * b^1$

$132 = a * b$

Substitute: $a=120$

$132 = 120 * b$

Solve for b

$b = \frac{132}{120}$

$b = 1.1$

So, the function is:

$y=ab^x$

$y=120 * 1.1^x$

To calculate the monthly rate (r), we have:

$y =a(1 + r)^x$

Compare to: $y =ab^x$

$1 + r = b$

Make r the subject

$r = b-1$

Substitute $b = 1.1$

$r = 1.1-1$

$r = 0.1$

Express as percentage

$r = 0.1*100\%$

$r = 10\%$

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2 years ago

What are the three choices equivalent to 27^4/3

12345 [234]

the answers are B,D and F

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2 years ago