Answer:
When the dimensions of the shape, such as radius, height, or length, change, both surface area and volume also change. However, the volume of the object always changes MORE than the surface area for the same change in dimensions.
Step-by-step explanation:
What you want to do is convert 20% into a decimal. Then you multiply that by 90. So, if 20% was a decimal(In this case it is 0.2) you do 0.2*90 which equals 18. So the answer is 18.
Answer:
She bought 7 coach tickets and 7 first class tickets.
Step-by-step explanation:
1. Set the equations up using y to represent first class and x to represent coach:
x + y = 14
370x + 1140y = 10,570
2. Use a graphing calculator to graph the equations and find the point where they intersect. The intersection point will tell you the number bought:
The mathematical statement is true when the value of t is 22
The equation is given as:

Expand the expression on the left-hand side

Distribute the expression

Evaluate like terms

By comparing the expressions on both sides of the equation, we have:

Divide both sides of the equation by -x^3

Rewrite as:

Hence, the mathematical statement is true when the value of t is 22
Read more about equivalent equations at:
brainly.com/question/2972832