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3 years ago

What factors do 28 and 44 have in common?

2 answers:

6 0

2 and 9 are factors of 18.

When we have two or more given numbers, we can find the largest factor that both numbers have in common. This is called the GCF or the Greatest Common Factor.

There are several different methods that can be used to find the GCF. Let's take a look at some of the methods.

Method 1: List out the factors.

Example: Find the GCF of 64 and 96. 

Step 1: List the factors of each number. 

64: 1, 2, 4, 8, 16, 32, 64

96: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96

Step 2: Look for factors that both lists have in common.

Step 3: Pick out the largest factor that both lists have in common and call this the GCF.

Therefore, the GCF of 64 and 96 is 32.

Method 2: Upside Down Division

Find the GCF of 280 and 144.

Step 1: Place the numbers inside an upside down division bar.

Step 2:Now, we need to divide both numbers by a common factor. Because both of the numbers are even, we could start with 2.The answer goes underneath the bar.

Step 3: We will continue to divide until we have two numbers that are relatively prime. Remember that relatively prime means two numbers that do not have any common factors other than 1.

35 and 18 are relatively prime. 

Step 4: Now we take all of the factors on the side and multiply them together.

PtichkaEL [24]3 years ago

5 0

(28,44)=4 hope this is what you are looking for

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Ray Of Light [21]

Add $\frac{x}{2}$ to both sides:

$\dfrac{2x}{5}+\frac{x}{2} = 9$

Add the fractions in the left hand side:

$\dfrac{2x}{5}+\frac{x}{2} = \dfrac{4x}{10}+\frac{5x}{10}=\dfrac{9x}{10}$

So, the equation becomes

$\dfrac{9x}{10}= 9$

Multiply both sides by 10:

$9x = 90$

Divide both sides by 9:

$x = 10$

5 0

4 years ago

wo urns contain white balls and yellow balls. The first urn contains 3 white balls and 6 yellow balls and the second urn contain

vlada-n [284]

Answer:

Answer is

$\frac{7}{30}$

Step-by-step explanation:

Given that there are two urns. First urn contains 3 white balls and 6 yellow balls and the second urn contains 7 white balls and 3 yellow balls.

A ball is drawn from each urn.

Probability for ball from urn I is white = no of white balls/total balls in I urn

$= \frac{3}{9} =\frac{1}{3}$

Probability for ball from urn II is white = no of white balls/total balls in I urn

$=\frac{7}{10}$

Since drawing one ball from each urn is independent of the other we find

Prob that both balls are white=

Prob that ball from I urn is white *Prob that ball from II urn is white

= $= \frac{7}{10} *\frac{1}{3}\\=\frac{7}{30}$

5 0

3 years ago

Read 2 more answers

PLEASE HELP ME!!!

IgorC [24]

Answer:

Option A) Inside the circle

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The radius is equal to the distance from the center to any point on the circle

the formula to calculate the distance between two points is equal to

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

we have

A(-5,-8),M(-1,-3)

substitute the values

$r=\sqrt{(-3+8)^{2}+(-1+5)^{2}}$

$r=\sqrt{(5)^{2}+(4)^{2}}$

$r=\sqrt{41}\ units$

step 2

Find the distance from the center to point V

we know that

If the distance from the center to point V is equal to the radius, then the point V lie on the circle

If the distance from the center to point V is less than the radius, then the point V lie inside the circle

If the distance from the center to point V is greater than the radius, then the point V lie outside the circle

we have

A(-5,-8),V(-11,-6)

substitute in the formula

$d=\sqrt{(-6+8)^{2}+(-11+5)^{2}}$

$d=\sqrt{(2)^{2}+(-6)^{2}}$

$d=\sqrt{40}\ units$

$\sqrt{40}\ units< \sqrt{41}\ units$

The distance from the center to point V is less than the radius

therefore

The point V lie inside the circle

4 0

4 years ago

Find an equation of the line described. Store the equation in slop-intercept form when possible.

Finger [1]

Answer:

Y = -5

Step-by-step explanation:

The line needs to be parallel to the y-axis, which means it forms a 90° angle with the y-axis. This means the line we are looking for is a straight horizontal line. The line must pass through the point (-7, -5), but we can disregard the x value since we figured out that the line is perfecly horizontal, so it has no x value. The answer we are left with is y = -5, which is a horizontal line across -5 on the y axis.

Hopefully you can understand my explanation :)

6 0

4 years ago

2. Express as a unit rate. a) Betty drives her car 150 km in 2 h. 150 km/2 =

Vinvika [58]

Answer:

Step-by-step explanation:

150km/2hr divided by two is 75 km/hr

7 0

4 years ago