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2 years ago

Two numbers are co-prime if they have no common factors (other than

Mathematics

1 answer:

Triss [41]2 years ago

4 0

Answer:

See below.

Step-by-step explanation:

105/3 = 35

35/5 = 7

7/7 = 1

429/3 = 143

143/11 = 13

13/13 = 1

105 = 3 * 5 * 7

429 = 3 * 11 * 13

Not co-prime

For the other parts of the problem, do the same I did above. Find the prime factorizations of both numbers, and see if they have any prime factors in common.

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Sarah is cutting ribbons for a pep rally. The length of each ribbon needs to be 3.42 inches.

charle [14.2K]

Answer:

3,420in or 285 feet

Explanation:

3.42 x 1,000 = 3,420

5 0

3 years ago

Mai is filling her fish tank. Water flows into the tank at a constant rate. Complete the table and answer the question below.

kvasek [131]

Answer:

$r = 1.6$

Step-by-step explanation:

Given

x ----- y

0.5. --- 0.8

1. --- 1.6

3.--- 4.8

25. --- 40

Required

Determine the constant of proportionality

This can be calculated using the following formula:

$y = rx$ ; Where r is the constant of proportionality;

Solve for r

$r = \frac{y}{x}$

When x = 0.5; y = 0.8

$r = \frac{0.8}{0.5}$

$r = 1.6$

When x = 1; y =1.6

$r = \frac{1.6}{1}$

$r = 1.6$

When x = 3; y = 4.8

$r = \frac{4.8}{3}$

$r = 1.6$

When x = 25; y = 40

$r = \frac{40}{25}$

$r = 1.6$

Notice that the value of r is constant throughout;

Hence:

$r = 1.6$

5 0

3 years ago

I need help I would really thank whoever answers this for me

Mars2501 [29]

To do these problems, you plug in the ‘n’ value given into the equation.

a. 6j - 3 : j = 4
6(4) - 3
24 - 3
21

b. 1/2b + 5 : b = 14
1/2(14) + 5
7 + 5
12

c. 8 + 4k : k = 3.5
8 + 4(3.5)
8 + 14
22

6 0

3 years ago

Read 2 more answers

What property of equality is x+3.75=7

stira [4]

3.25 you just subtract 3.75 from 7
Hope this helps!

5 0

4 years ago

Find the distance between points A (10,-1) and B (-2,5). Round to the nearest tenth

bija089 [108]

Answer:

<h2>The answer is 13.4 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

$d = \sqrt{ ({x1 - x2})^{2} + ({y1 - y2})^{2} } \\$

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

A (10,-1) and B (-2,5)

The distance is

$|AB| = \sqrt{ ({10 + 2})^{2} + ({ - 1 - 5})^{2} } \\ = \sqrt{ {12}^{2} + ({ - 6})^{2} } \\ = \sqrt{144 + 36} \: \: \: \: \: \: \: \\ = \sqrt{180} \\ = 6 \sqrt{5} \: \: \\ =13.416407$

We have the final answer as

<h3>13.4 units to the nearest tenth</h3>

Hope this helps you

7 0

3 years ago