Mathematics: One number is 4 greater than another. The product of the numbers is 21. Find the numbers. One pair of numbers, both of which are positive, is

One number is 4 greater than another. The product

FlyingPig14

14.08.2021

7 and 3 are two numbers that work

Step-by-step explanation:

7-3=4

7×3=21

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anrs14

13.01.2021

The answer to your question is 4 ft

Step-by-step explanation:

Data

Building's shadow = 288 ft

Building's high = 64 ft

Sarah's shadow = 18 ft

Sarah's height = ?

Process

1.- Use proportions to solve this problem

$\frac{Sarah's height}{Sarah's shadow} = \frac{building's height's}{building's shadow}$

2.- Solve for Sarah's height

$Sarah's height = \frac{Sarah's shadow x building's height}{building shadow}$

3.- Substitution

$Sarah's height = \frac{18 x 64}{288}$

4.- Simplification

$Sarah's height = \frac{1152}{288}$

5.- Result

Sarah's height = 4 ft

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