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Shkiper50 [21]
3 years ago
12

What is 18/21 in lowest terms

Mathematics
2 answers:
vaieri [72.5K]3 years ago
5 0

Answer:

6/7

somehow three

Step-by-step explanation:

18/21=

6/7

ie 3 can go into 18,6 times and can go into 21,7 times.

Maurinko [17]3 years ago
3 0

Answer:

3

Step-by-step explanation:

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3+5=8 and 13+5=18 therefore the sum of two odd numbers is an even number
Ratling [72]
True, 13+17=30,51+49=100

3 0
2 years ago
32.17 divided by 7= i need to estimate and quotient
joja [24]
32.17/7 =

about 4.59571428571429

are there any instructions on rounding it to the nearest tenth, hundredths, etc.?
8 0
3 years ago
0/1 Hannah went to the store and spent $14. 69 on a book, $20. 99 on a shirt, and $5. 99 on a pack of pencils. If she paid with
tester [92]

Answer:

$8.33

Step-by-step explanation:

$14.69                                                                  50.00

+ $20.99                                                            -  41.67

=35.68                                                                =   $8.33

+5.99

=$41.67

5 0
2 years ago
Find all geometric sequences such that the sum of the first two terms is 24 and the sum of the first three terms is 26.
Serga [27]

Answer:

<h3>The nth term Tn = -8(-1/4)^(n-1) or Tn = 6(1/3)^(n-1) can be used to find all geometric sequences</h3>

Step-by-step explanation:

Let the first three terms be a/r, a, ar... where a is the first term and r is the common ratio of the geometric sequence.

If the sum of the first two term is 24, then a/r + a = 24...(1)

and the sum of the first three terms is 26.. then a/r+a+ar = 26...(2)

Substtituting equation 1 into 2 we have;

24+ar = 26

ar = 2

a = 2/r ...(3)

Substituting a = 2/r into equation 1 will give;

(2/r))/r+2/r = 24

2/r²+2/r = 24

(2+2r)/r² = 24

2+2r = 24r²

1+r = 12r²

12r²-r-1 = 0

12r²-4r+3r -1 = 0

4r(3r-1)+1(3r-1) = 0

(4r+1)(3r-1) = 0

r = -1/4 0r 1/3

Since a= 2/r then a = 2/(-1/4)or  a = 2/(1/3)

a = -8 or 6

All the geometric sequence can be found by simply knowing the formula for heir nth term. nth term of  a geometric sequence is expressed as

if r = -1/4 and a = -8

Tn = -8(-1/4)^(n-1)

if r = 1/3 and a = 6

Tn = 6(1/3)^(n-1)

The nth term of the sequence above can be used to find all the geometric sequence where n is the number of terms

6 0
3 years ago
Jaleel's house is 18 feet high. Jaleel, who is 5 feet tall, stands next to his house on a sunny day. How long is the shadow of J
viktelen [127]

Answer:

21 feet

Step-by-step explanation:

First you find the difference between Jadeel's height and Jadeel's shadow

8-5=3

So the difference is 3

Then you add it to the house shadow because it is how much extra foot high it is

So the house shadow is 21 feet

4 0
2 years ago
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