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2 years ago

What is a rational number

Mathematics

2 answers:

irinina [24]2 years ago

5 0

A number that can be turned into a ratio form.

spayn [35]2 years ago

3 0

A rational number is a number that can be written as a ratio

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The amount of money that Charlie saves each week is directly proportional to the amount he earns. Last week Charlie saved $32 on

Agata [3.3K]

If k is a constant of proportionality then we know from last week that
512= k ·32 so k=512/32=16;

This week
448= k · amount he saved
448=16· amount he saved
amount saved=448/16=28

Answer $28

8 0

2 years ago

Read 2 more answers

Ill mark brainliest.

fgiga [73]

Answer:

(x+6) ÷ +5x ÷ 3 = x+6/15x

Step-by-step explanation:

(x+6) ÷ 5x/3

(x+6) ÷ 5x ∙ 1/3

x+6/5x ∙ 1/3

x+6/5x ∙ 3

x+6/15x

7 0

2 years ago

Which of the following are geometric series?

Fed [463]

<h3>ANSWER</h3>

first is the geometric series

<h3 /><h3>EXPLANATION</h3>

a geometric series is a sequence of numbers whose first term is non zero and each of the succeeding terms is equal to the Prcedding term multiply by a constant number.

if a = first term

and constant number = d

then

GP is given by

a,a r , a r^2 ,a r^3 .............and so on

in first

a = 1/2

and d = 1/2

and hence it is an GP

8 0

2 years ago

Read 2 more answers

8.) Compare<br> 2.51<br> 2.511

posledela

Answer:

the answer is 2.51<2.511

Step-by-step explanation:

Simplifying then comparing both terms 2.512.51 and 2.5112.511, 2.512.51 is less than 2.5112.511, which means that the first term is less than the second term.

6 0

2 years ago

Write an expression for the sequence of operation:<br> ) divide the product of a and b by 9

Alisiya [41]

Answer:

(ab)/9

Step-by-step explanation:

The product of a and b is written ...

Division by 9 is indicated by a fraction with 9 in the denominator and the dividend in the numerator. In text form, it looks like ...

(ab)/9

In typeset form it looks like ...

$\dfrac{(ab)}{9}$

The parentheses are necessary in both cases if you want to make sure the product is formed before the division occurs. The Order of Operations requires that the contents of parentheses be evaluated first.

On the other hand, in text form, ab/9 is supposed to be evaluated left to right, so the multiplication should occur before the division. (There is no "left to right" for the typeset fraction in the case where there are no parentheses.)

_____

<em>Comment on the question</em>

Technically speaking, There is no way to write the expression so that the multiplication is required before the division, because the associative and commutative properties of multiplication allow the sequence to be rearranged to any convenient order.

7 0

2 years ago