ossidianaZ
2020-10-31
Answered

If 45 cookies will serve 15 students, how many cookies are needed for
30 students?

You can still ask an expert for help

pivonie8

Answered 2020-11-01
Author has **91** answers

Assuming there is an equal ratio you can double the amount of cookies because the amount of students double. Therefore you need 90 cookies.

asked 2021-01-04

Write in words how to read each of the following out loud.

a. $\{x\in {R}^{\prime}\mid 0<x<1\}$

b. $\{x\in R\mid x\le 0{\textstyle \phantom{\rule{1em}{0ex}}}\text{or}{\textstyle \phantom{\rule{1em}{0ex}}}x\Rightarrow 1\}$

c. $\{n\in Z\mid n\text{}is\text{}a\text{}factor\text{}of\text{}6\}$

d. $\{n\in Z\cdot \mid n\text{}is\text{}a\text{}factor\text{}of\text{}6\}$

asked 2021-08-11

A ball is tossed upward from the ground. Its height in feet above ground after t seconds is given by the function $h\left(t\right)=-16{t}^{2}+24t$ . Find the maximum height of the ball and the number of seconds it took for the ball to reach the maximum height.

asked 2022-06-24

$\left[\frac{n}{1}\right]+\left[\frac{n}{2}\right]+\cdots +\left[\frac{n}{n}\right]+\left[\sqrt{n}\right]$ is even

I tried this by taking two different cases, when, $n$ is even and when $n$ is odd. But I could not establish any relation between the two. Please help to solve this problem and thanks a lot in advance.

P.S. Although nothing is mentioned in the question I think $[\text{}]$ stands for greatest integer function as otherwise the sum would be in a fraction which is not even as only natural numbers are regarded as even.

I tried this by taking two different cases, when, $n$ is even and when $n$ is odd. But I could not establish any relation between the two. Please help to solve this problem and thanks a lot in advance.

P.S. Although nothing is mentioned in the question I think $[\text{}]$ stands for greatest integer function as otherwise the sum would be in a fraction which is not even as only natural numbers are regarded as even.

asked 2022-07-11

How do you solve $-84<7c$ ?

asked 2022-07-27

The mailman leaves the post office and first makes a delivery to Hannah, then picks up a package from George, and finally delivers the package to Frank before returning to the post office. How far did the mailman travel? Hannah: 6 1/5, George: -6.2, Frank: 10/4, Post Office: -10

asked 2021-08-20

The solution of the given expression.

Given:$9.8m=30.87$

Given:

asked 2022-02-07

How do you write the equation for "The sum of 14 and a number is 8 times the number"?