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2 years ago

100 POINTS PLEASE HELP ASAP!!!!

Mathematics

1 answer:

Tpy6a [65]2 years ago

6 0

Answer:

Find a number that divides equally in both the numerator and denominator then divide the numerator and denominator by the number you just found an

Step-by-step explanation:

1) Find a number that divides equally in both the numerator and denominator

2) Then divide the numerator and denominator by the number you just found

3) Keep on doing this until you can't divide the numerator and denominator exactly with the number you found

NOT 100% SURE IF THIS IS WHAT YOU MEANT OR IF YOU EVEN UNDERSTAND WHAT I HAVE WRITTEN BUT I TRIED MY BEST

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The sum of an infinite geometric series is three times the first term. Find the common ratio of this series.

adelina 88 [10]

Answer:

$\frac{2}{3}$

Step-by-step explanation:

The sum of an infinite geometric series is expressed according to the formula;

$S_\infty = \dfrac{a}{1-r}$ where;

a is the first term of the series

r is the common ratio

If the sum of an infinite geometric series is three times the first term, this is expressed as $S_\infty = 3a$

Substitute $S_\infty = 3a$ into the formula above to get the common ratio r;

$3a = \dfrac{a}{1-r} \\\\$

$cross \ multiply\\\\3a(1-r) = a\\\\3(1-r) = 1\\$

open the parenthesis

$3 - 3r = 1\\\\$

subtract 3 from both sides

$3 - 3r -3= 1-3\\\\-3r = -2\\\\r = \frac{2}{3}$

Hence the common ratio of this series is $\frac{2}{3}$

3 0

2 years ago

2 The area of the back yard is 72m. The length is 12m. What is

meriva

2. 6m
3. No, she has 2.8ft of fabric. She is 2.2 yards short... :)

8 0

2 years ago

Can I have help help on 22,24,26,28,30 please

Dmitriy789 [7]

I'll do 22 for you. 22, 24, 26, 28, and 30, are very similar to each other.

PROPORTIONS:
Draw it out.

5/7 = either c/6, or b/5.
I'll do c/6
5/7 = c/6
solve for c
7c=30
c=30/7
now do the same thing to the remaining side, b.
there!

4 0

3 years ago

An architect is sketching a blueprint of a patio for a new fence. On the blueprint, C is the midpoint of segment AD. Point B is

Gre4nikov [31]

Answer:

The length of AD is 32 feet

Step-by-step explanation:

Proportional distances

When distances are proportions of others, we can express all of them as relative fractions until we reach some known distance and solve for the desired length

Let's call x the length of AD. Given C is the midpoint of AD, then

$\displaystyle AC=CD=\frac{x}{2}$