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3 years ago

How can you solve problems with rational numbers?

Mathematics

1 answer:

nikitadnepr [17]3 years ago

8 0

Answer:

Step-by-step explanation

Rational number is a number that can be written as a fraction. Fractions, integers and decimals are all rational numbers.

Fraction to Decimal: rewrite as a division problem. Divide

Ex:1/2=2÷1=0.5

Decimal to Fraction: rewrite the digits over the appropriate power of 10/100. Simplify

Ex: 0.15= 3/20

15÷5=3

100÷5=20

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Can u pls help me with this question asap

alexdok [17]

Between 3 and 4 cups.

Let’s find 87% of 4.
(4)(0.87)= 3.48

So in 4 cups of milk, there is 3.48 cups of water, which is between 3 and 4 cups.

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3 years ago

Just 49 and explain please

Arisa [49]

Since you have points (-2,7) you can plug those into each equation to see if they work. If the equation works your answer should be equal to y. in doing that the correct equation is
(B) y=-x+5
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5 0

3 years ago

The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $336.00. What was it worth

sesenic [268]

Answer:

The value of basketball player's autograph a year ago is $280

Step-by-step explanation:

Given as :

The present value of autograph = $ 336.00

The rate of increase of autograph = 20%

The time period = 1 year

Let The value one year ago = $ x

So ,

The value of autograph after n year = The present value × $(1+\frac{Rate}{100})^{n}$

Or, $ 336.00 = $ x × $(1+\frac{20}{100})^{1}$

Or, $ 336.00 = $x × 1.2

∴ x = $\frac{336.00}{1.2}$ = $280

Hence The value of basketball player's autograph a year ago is $280 Answer

6 0

3 years ago

Find the slope of the line

slega [8]

Answer:

we cant answer if we dont see the problem

Step-by-step explanation:

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2 years ago

What is the period of y = 8 cos (5pie x + 3pie/2)-9<br> Give an exact value. Units

zzz [600]

$\\ \rm\Rrightarrow y=Acos(Bx+C)+D$

This is the general formula and the period is 2π/B

Now our given function

$\\ \rm\Rrightarrow y=8cos\left(5\pi x+\dfrac{3\pi}{2}\right)-9$

On comparing we get

A=8
B=5π
C=3π/2
D=-9

Period:-

$\\ \rm\Rrightarrow \dfrac{2\pi}{B}$

$\\ \rm\Rrightarrow \dfrac{2\pi}{5\pi}$

$\\ \rm\Rrightarrow \dfrac{2}{5}$

3 0

2 years ago

Read 2 more answers