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2 years ago

Find the value of x.

Mathematics

2 answers:

SVETLANKA909090 [29]2 years ago

8 0

Answer: 111

Step-by-step explanation: its half of the circle

choli [55]2 years ago

3 0

$\bold{ANSWER:}$
x = 42

$\bold{SOLUTION:}$

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Agata [3.3K]

Answer:

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3 years ago

A cyclist rides her bike at a rate of 12 meters per second. What is this rate in kilometers per hour? How many kilometers will t

IgorLugansk [536]

Answer:

Part 1) The rate is $43.2\frac{km}{h}$

Part 2) $129.6\ km$

Step-by-step explanation:

Part 1)

we know that

A cyclist rides her bike at a rate of 12 meters per second

Remember that

1 hour=3,600 seconds

1 kilometer=1,000 meters

therefore

$12\frac{m}{sec} =\frac{(12/1,000)}{(1/3,600)}=\frac{12*3,600}{1,000}=43.2\frac{km}{h}$

Part 2) How many kilometers will the cyclist travel in 3 hours?

using proportion

$\frac{43.2}{1}\frac{km}{h}=\frac{x}{3}\frac{km}{h}\\ \\x=43.2*3\\ \\x=129.6\ km$

3 0

3 years ago

What is 15n - 2n = 6 - n

lilavasa [31]

15n - 2n = 6 - n
13n = 6 - n
14n = 6
n = 6/14
n = 3/7

4 0

3 years ago

Read 2 more answers

Help please!

wlad13 [49]

y = 3x - 4

(4,2); when x = 4; y = 3(4) - 4 = 9 ........FALSE
(1, -1); when x = 1; y = 3(1) - 4 = -1 ........TRUE
(-1, -7); when x = -1; y = 3(-1) - 4 = -7 ........TRUE
(2, 2); when x = 2; y = 3(2) - 4 = 2 ........TRUE

answer
(1, -1)
(-1, -7)
(2, 2)

6 0

4 years ago

a rectangle billboard is 30 feet by 18 ft. if a gallon of paint cover 250 square feet how many gallons should be purchase to cov

Likurg_2 [28]

We are given dimension of billboard as 30 feet by 18ft.

since billboard is a rectangle so Area =l *b

Area of billboard = 30*18=540 feet square

1 gallon of paint covers 250 square feet

so for 540 square feet paint needed = 540/250 = 2.16 gallons

Answer: 2.16 gallons should be purchased to cover the entire billboard

5 0

3 years ago