I can’t really see the picture like that , it type blurry
Multiply 9 and 5 then multiply by .5 giving you 22.5 so I’d say that’s your best option
Use distributive property
4x - 4 = 12 - 4x
8x = 16
X = 2
Answer:
(3x - 8) pounds of gravel was used to cover the bottom of sinks, where x is the weight of bag of gravel.
Step-by-step explanation:
We are given the following information in the question:
In order to answer this question we need to make the following assumption
Let x pound be the weight of one bag of gravel.
Total number of bags of gravel bought by Kevin = 3
Weight of 3 bags of gravel = 3x pounds
Amount of gravel left after pouring = 8 pounds
Amount of gravel used to cover the bottom of sink =
Formula:
![\text{Amount of gravel used to cover the bottom of sink} = \\\text{Amount of gravel bought} - \text{Amount of gravel left}\\= 3x -8](https://tex.z-dn.net/?f=%5Ctext%7BAmount%20of%20gravel%20used%20to%20cover%20the%20bottom%20of%20sink%7D%20%3D%20%5C%5C%5Ctext%7BAmount%20of%20gravel%20bought%7D%20-%20%5Ctext%7BAmount%20of%20gravel%20left%7D%5C%5C%3D%203x%20-8)
Thus, (3x - 8) pounds of gravel was used to cover the bottom of sinks.
Answer:
900 pi for first question and 14137 for 2nd
Step-by-step explanation:
SA=4pi r^2
r=15 (30/2)
SA=4pi(15^2)
SA=900pi
V=4/3pi r^3
V=4/3(3.14)(15^3)=14137