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2 years ago

What’s 3/20 of a circle

1 answer:

3 0

The answer to what is 3/20 of a circle is 54 because we know a circle is 360 degrees so we divide that by 30 and we get 18. Now that we have 18 we multiply that by 3 and we get our answer of 54

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At 8:00 A.M., Jackie starts at the north end of a 10-mile trail and begins walking south at an average speed of 2 mph. After a w

Tcecarenko [31]

Answer:

3.08 miles

Step-by-step explanation:

Total distance = 10 miles
Total time = 2 hours
Distance walked = x
Speed walked = 2 mph
Distance cycled = 10 - x
Speed cycled = 15 mph

Using the given data we can have the equation below to the time:

x/2 + (10 - x)/15 = 2
30x/2 + 30(10 - x)/15 = 30(2)
15x + 20 - 2x = 60
13x = 60 - 20
13x = 40
x = 40/13
x = 3.08 miles rounded to 2 decimal places

7 0

2 years ago

Determine if true: 8x2-63=-40

prohojiy [21]

Answer:

False

Step-by-step explanation:

8x2=16

16-63=-47

-47=-40

The numbers do not match.

Hence, the equation is false.

3 0

1 year ago

Read 2 more answers

The time (t) it takes to clean an office building is directly related to the number of people (p) working. Which of the followin

Inessa [10]

Answer:

The time (t) it takes to clean an office building is directly related to the number of people (p) working.

t is proportional to p

$t = kp \\ \boxed{\red{\frac{t}{p} = k}}$

3 0

2 years ago

What is the circumference of this circle d=12 cm

Gnoma [55]

For circumference it’s 12x3.14= 37.68

6 0

2 years ago

Read 2 more answers

it takes someone 15 minutes to prepare 3 1/4 cups of juice how many hours would it take to prepare 32 1/2 cups of juice

wariber [46]

$\bf \begin{array}{ccll} minutes&\stackrel{juice}{cups}\\ \cline{1-2} 15&3\frac{1}{4}\\\\ x&32\frac{1}{2} \end{array}\implies \cfrac{15}{x}=\cfrac{3\frac{1}{4}}{32\frac{1}{2}}\implies \cfrac{15}{x}=\cfrac{\frac{3\cdot 4+1}{4}}{\frac{32\cdot 2+1}{2}}\implies \cfrac{15}{x}=\cfrac{\frac{13}{4}}{\frac{65}{2}}$

$\bf \cfrac{15}{x}=\cfrac{~~\begin{matrix} 13 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{\underset{2}{~~\begin{matrix} 4 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\cdot \cfrac{~~\begin{matrix} 2 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}{\underset{5}{~~\begin{matrix} 65 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}}\implies \cfrac{15}{x}=\cfrac{1}{10}\implies 150=x\leftarrow \begin{array}{llll} \textit{150 minutes or}\\\\ \textit{2 hours and a half} \end{array}$

4 0

2 years ago