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2 years ago

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Flying against the wind, a jet travels 5920 miles in 8 hours. Flying with the wind, the same jet travels 10.980 miles in 9 hours

. What is the rate of the jet in still air and what is the rate of the wind?

1 answer:

STALIN [3.7K]2 years ago

4 0

Here is my answer. I hope this is helpful.

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56.13 value of 5what is the value of 5

mamaluj [8]

Answer:

5=tens

6=ones

1=tenths

3=hundredths

Hope this helps

Step-by-step explanation:

6 0

2 years ago

Factorise the following :<br>

timurjin [86]

Answer:

2.

x³+2x²+5x+10

x²(x+2)+5(x+2)

taking common

(x+2)(x²+5) is your answer

a³-a²b²-ab+b³

taking common

a²(a-b²)-b(a-b²)

taking common

(a-b²)(a²-b)

5 0

3 years ago

Read 2 more answers

Find the smallest positive integer k such that 3240/k is a square number

sashaice [31]

Answer:

10

Step-by-step explanation:

First, factorize the number 3,240:

$3,240=2\cdot 1,620=2\cdot 2\cdot 810=2\cdot 2\cdot 2\cdot 405=2\cdot 2\cdot 2\cdot 2\cdot 5\cdot 81=2^3\cdot 5\cdot 9^2$

So,

$3,240=2^2 \cdot 2\cdot 5\cdot 9^2=18^2\cdot 10$

Now consider the fraction

$\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{k}$

If k = 10, then

$\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{10}=18^2$

is a square number.

For all k < 10, the fraction tex]\dfrac{3,240}{k}[/tex] is not a square number (this follows from factorization).

Or you can simply check the values of the fraction for all k < 10:

k = 1, $\dfrac{3,240}{1}=3,240$ is not a square number;
k = 2, $\dfrac{3,240}{2}=1,620$ is not a square number;
k = 3, $\dfrac{3,240}{3}=1,080$ is not a square number;
k = 4, $\dfrac{3,240}{4}=810$ is not a square number;
k = 5, $\dfrac{3,240}{5}=648$ is not a square number;
k = 6, $\dfrac{3,240}{6}=540$ is not a square number;
k = 7, $\dfrac{3,240}{7}$ is not a square number;
k = 8, $\dfrac{3,240}{8}=405$ is not a square number;
k = 9, $\dfrac{3,240}{9}=360$ is not a square number.

5 0

3 years ago

Roger manages an ice cream stand. He keeps track of how many minutes each customer stands in line.

aalyn [17]

<span>0.5 = 2
0.75 = 2
1.0 = 3
1.25 = 4
1.5 = 5
2.0 = 2
2.25= 1
2.5 = 1

You should always count the numbers you used to make sure the total matched the total number of data. In this case, there are 20 numbers, and the total is also 20.</span>

5 0

3 years ago

Read 2 more answers

The diameter of the pan is 9 inches. What is the approximate circumference of a lid that will fit his frying pan? (Use 3.14 for

konstantin123 [22]

Answer:

28.26

Step-by-step explanation:

the equation for circumference is 2pi*r or pi*d

3.14*9 (the diametre) is 28.26

Answer 28.26

6 0

2 years ago