Answer:
70
Step-by-step explanation:
Evaluate 3 b^2 - b where b = 5:
3 b^2 - b = 3×5^2 - 5
Hint: | Evaluate 5^2.
5^2 = 25:
3×25 - 5
Hint: | Multiply 3 and 25 together.
3×25 = 75:
75 - 5
Hint: | Subtract 5 from 75.
| 7 | 5
- | | 5
| 7 | 0:
Answer: 70
Equation can be used to represent the altitude of the balloon, b, based on time, t be 3000-80x
<h3>What is equation?</h3>
An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Given:
A hot-air balloon is traveling at an altitude of 3,000 feet.
It begins to descend at a rate of 80 feet per minute.
let x be the time in minutes.
let y be the altitude in feet.
Hence, equation will be = 3000-80x
Learn more about his concept here:
brainly.com/question/9181422
#SPJ1
Answer: 6
There are 6 faces to a cube, so there are 6 squares when you unfold it to form the net of the cube. The net is like the wrapping paper.
10 and 16
half of 20 is 10 (20×(1/2)=10)
half of 16 is 8 (16×(1/2)=8)
⛵
became
⛵
Answer:
x=6
Step-by-step explanation:
since y=5x/2-7, and y=4x/3
so 5x/2-7=4x/3
5x/2-4x/3= 7
15x-8x/6=7
7x/6=7
x= 7*6/7= 6