解析 A There are two numbers whose sum is 30 and whose product is 221. The numbers are 13 and 17; they differ by 4. 这里有两个数字,它们的和是30,它们的积是221.这些数字相差( ). A.4 B.3 C.2 D.1 有两个数,它们的和是30,它们的积是221.数字是13和17,差4. 故选A....
There are ( ) two-digit numbers whose tens digit is larger than the units digit by three or more .十位数位比个位数位大3或以上的二位数共有 个. 相关知识点: 试题来源: 解析 1. 28当十位数是9时,比个位数大3或以上的二位数有:96、95、94、93、92、91、90,共7个;当十位数是8时,比个位数...
Find two numbers whose sum is 27 and product is 182. 01:51 Find two numbers whose sum is 27 and product is 182. 02:16 Find two numbers whose sum is 27 and product is 182 03:50 Find two such numbers whose sum is 27 and product is 182. 02:37 Find two numbers whose sum is 27 ...
What two positive real numbers whose product is 72 have the smallest possible sum? Application of Derivative:The given question from the maxima and minima and we have to find out the number. We will use the first and second-order derivatives to solve the given question....
Answer to: The sum of twice one number and four times another number is 24. Find the two numbers whose product is as large as possible. By signing...
(3)Use calculus to find the critical number of the function in part (2). Then find the two numbers. (4)Use a graphing utility to graph the function in part (2) and verify the solution from the graph. 相关知识点: 试题来源: 解析 (1)The maximum is attained near x=50 and 60. (2...
and whose product is15( ). A. 4B. 14C. 6D. 16相关知识点: 试题来源: 解析 A Let the numbers be a and b.Then,1a+1b=(a+b)ab. Since a+b=60 andab=15,we have 6015=4. 两个实数的和是60,乘积是15,它们的倒数之和是多少( ). A.4 B.14 C.6 D.16 设数字为a和b则1a+1b=(...
To solve the problem of finding which ratio cannot represent two numbers whose sum is 84, we can follow these steps:Step 1: Understand the Problem We need to find two numbers, A and B, such that A + B = 84. We will check differ
Find two positive numbers whose product is {eq}27 {/eq} and the sum of the first number and {eq}3 {/eq} times the second number is a minimum. Verbal Problems: Verbal problems in which an objective function and an equality relationship ...
Answer to: Find two positive numbers whose product is 400 and such that the sum of twice the first and three times the second is a minimum. By...