I HAVE 5 MINUTES PLEASE HELP (15 points)

Mathematics

2 answers:

erastova [34]4 years ago

7 0

The answer choice is a. y=(-1/2)x

ladessa [460]4 years ago

6 0

Answer:

y= -1/2x

Step-by-step explanation:

It is A

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O 12 Ms. Ruby has 1 beanbag chair in her room. She lets 4 students take equal turns sitting in the chair during a 38-minute read

My name is Ann [436]

The number of students allowed to sit, N=4.

The total number of minutes, T=38 minutes.

Let x be the number of minutes for a student

$\begin{gathered} 4\text{ students-}\longrightarrow38\text{ minutes} \\ 1\text{ student--x} \\ \text{Cross multiplying,} \\ x=\frac{38\text{ minutes}}{4\text{ students}}\times1\text{ students} \\ =\frac{38}{4\text{ }}\text{minutes} \end{gathered}$

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1 year ago

When a measurement in inches is converted to centimeters, will the number of centimeters be greater or less than the number of i

krek1111 [17]

Answer:
The number of centimeters will be greater than the number of inches.

Explanation:
The conversion between an inch (British Units) and centimeter (Metric Units) is
1 inch = 2.54 centimeters.

According to the conversion, every inch is equivalent to more than 2.5 centimeters.

7 0

3 years ago

What much expression represents a rational number?

Pie

Answer:

$\displaystyle \frac{2}{7}+\sqrt{121}$

Step-by-step explanation:

<u>Rational Numbers</u>

A rational number is any number that can be expressed as a fraction

$\displaystyle \frac{a}{b}, \ b\neq 0$

for a and b any integer and b different from 0.

As a consequence, any number that cannot be expressed as a fraction or rational number is defined as an Irrational number.

Let's analyze each one of the given options

$\displaystyle \frac{5}{9}+\sqrt{18}$

The first part of the number is indeed a rational number, but the second part is a square root whose result cannot be expressed as a rational, thus the number is not rational

$\pi + \sqrt{16}$

The second part is an exact square root (resulting 4) but the first part is a known irrational number called pi. It's not possible to express pi as a fraction, thus the number is irrational

$\displaystyle \frac{2}{7}+\sqrt{121}$

The square root of 121 is 11. It makes the whole number a sum of a rational number plus an integer, thus the given number is rational

$\displaystyle \frac{3}{10}+\sqrt{11}$