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3 years ago

Find the average of 63 68 54 64 and 51 and explain the average

2 answers:

5 0

The average of a list of numbers is determined by adding all the numbers up, and then dividing by how many numbers there were (In other words, the sum of all the numbers divided by the amount of numbers).
63 + 68 + 64 + 54 + 51 = 300.
There are 5 numbers total.
300 (sum of all numbers)/5 (amount of numbers)
300/5 = 60.
Your average is 60.

VLD [36.1K]3 years ago

4 0

The average is 60
and the average yu take all the #s and add them and see what it = than / by how many #s there are!

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When multiplying and dividing two numbers in scientific notation, why do u sometimes have to rewrite one factor ?

zalisa [80]

You sometimes need to rewrite a factor because the lead number is not between 1 and 10 as it needs to be in scientific notation. For instance, if we had lead numbers of 2 and 5, as we do in the following problem.

2x10^3 * 5x10^9

Then we get the answer of 10x10^12. We need to adjust this by moving the decimal place and increasing the exponent by 1. The correct answer would be 1x10^13 instead.

5 0

3 years ago

Read 2 more answers

HELP MUTIPLE CHICE IM BEING TIMED GEOMETRY PICKING SOMEONE FOR Brainliest

ollegr [7]

Answer:

1. SSS

2. Q and S

3. 20

Step-by-step explanation:

1. SSS similarity: If the corresponding sides of two triangles are proportional, then the two triangles are similar.

Triangles NLM and WUV are similar by SSS similarity, because

$\dfrac{NL}{WU}=\dfrac{36}{63}=\dfrac{4}{7}\\ \\\dfrac{LM}{UV}=\dfrac{40}{70}=\dfrac{4}{7}\\ \\\dfrac{NM}{WV}=\dfrac{24}{42}=\dfrac{4}{7}$

2. Completed steps:

a) draw a circle with center at P and radius r

b) draw a circle with center at Q and radius r

c) using compass, measure the distance between two points of intersection of the first circle with angle rays

d) using point of intersection of the second circle with PQ as a center, draw the circle of radius equal to the distance from c) to get point S

Last step: connect points Q and S, line QS will be parallel to line r.

3. If lines MN and UT are parallel, then angles MUT and VMN are congruent; also angles UTN and MNV are congruent.

AA similarity: In two triangles, if two pairs of corresponding angles are congruent, then the triangles are similar .

By AA similarity, triangles VMN and VUT are similar, thus

$\dfrac{VM}{VU}=\dfrac{VN}{VT}\\ \\\dfrac{VM}{VM+8}=\dfrac{49-14}{49}\\ \\49VM=35(VM+8)\\ \\49VM=35VM+280\\ \\49VM-35VM=280\\ \\14VM=280\\ \\VM=20\ units$

5 0

2 years ago

What is the written form of 35 1/5

FromTheMoon [43]

35.20 is the decimal version

8 0

3 years ago

A dollar bill is 6.14 inches long, 2.61 inches wide, and 0.0043 inches thick. If you laid 1 million dollar bills end to end, how

navik [9.2K]

The answer would be 97 when rounded to the nearest mile (if you were were going for length)

4 0

3 years ago

Find the equation of lines

bearhunter [10]

Answer:

y = x + 6.

Step-by-step explanation:

y = mx + c where m = the slope of the line and c is the y-intercept.

So here m = 4/4 = 1 and c = 6, so it's:

y = 1x + 6.

3 0

3 years ago