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3 years ago

I need advice on this answer not good at math

Mathematics

2 answers:

Temka [501]3 years ago

5 0

Answer:

A rational number is defined as a number that can be written as a fraction and a number that terminates.

An irrational number is defined as a number that can't be written as a fraction and a number that has no end.

Step-by-step explanation:

4/7 is irrational because, in decimal form, it is 0.57142857...

Square root of 30 is also irrational because the square root is 5.47722557...

21 divided by square root of 4 is rational because square root of 4 is 2 and 21 divided 2 is 10.5.

pi is irrational because, in decimal form, it is 3.14159265....

-27 is also rational because it terminates

madreJ [45]3 years ago

5 0

Answer:

4/7 rational, Sq root 30 irrational, 21/Sq root 4 rational, pi irrational, -27 irrational

Step-by-step explanation:

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Bob bought 16 packs of cola. Each pack had 8 cans. He drank 9 of the cans. How many cans are left?

grin007 [14]

Answer:

119 Cans Left

Step-by-step explanation:

If bob brought 16 packs of soda, and each pack had 8 cans, there would be 128 cans. This is because 1 pack is worth 8 cans.

16 × 8 = 128

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Bob drank 9 of the cans, which is the same as subtracting from 128. This gives us the answer.

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3 years ago

Steve has three times as many quarters as half-dollars. The coins total $13.75. How many total coins does he have, how would you

statuscvo [17]

Hello,
Let assume x the number of half-dollars3x is the number of quarters.
The coins total $13.75.
$0.50 *x+ 0.25 *3x=13.75\\

\Rightarrow\ \dfrac{x}{2}+ \dfrac{3x}{4}=13.75\\

\Rightarrow\ \dfrac{2x}{4}+ \dfrac{3x}{4}=13.75\\

\Rightarrow\ \dfrac{5x}{4}=13.75\\

\Rightarrow\ 5x=4*13.75\\

\Rightarrow\ 5x=55\\

\Rightarrow\ x=11\\

$

11 is the number of half-dollars

33 is the number of quarters.

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3 years ago

Anthony spent half his allowance at the show store then he mowed his neighbors lawn and got 10$ if he now has 22$ write an equat

marta [7]

Answer:

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Step-by-step explanation:

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4 years ago

Read 2 more answers

I need advice on this answer not good at math​

I need advice on this answer not good at math