. A teenager bought some vintage t-shirts online. The total cost, C, in dollars, of t-shirts, t, can be found by using the equat
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Answer:
800
Step-by-step explanation:
We can set up a proportion using the information we are given. We know that 240 students corresponds to 30% and that the total number of students, x, corresponds to 100%
Cross multiply and solve:
240 * 100 = 30x
24000 = 30x
800 = x
Given:
At a college, the tuition increased by 10%. Let b be the former cost of tuition.
Use the expression for the new cost of tuition.
To find:
The equivalent expression by combining like terms.
Solution:
We have,
On combining the like terms, we get
Therefore, the required equivalent expression is 1.10b.