Answer:
85 students
Step-by-step explanation:
Given


Required
Find the total number of students
We have:

Substitute: 

Express as fraction

Multiply both sides by 51




So, the total is:



Answer:
3 different ways
Step-by-step explanation:
pls mark brainliest
Answer:
Step-by-step explanation:
differences
Answer:
(2b, 2b + 7)
Step-by-step explanation:
y=f(x) = x +7
x= 2b
y=f(2b) = 2b +7
(2b, 2b + 7)
answer: D) 439.85
Step-by-step explanation:
we are given the price of the bike which is $413.
we are also given the sales tax which is 6.5%.
sales tax is added to the original price to give us our total. so in order to find the total cost we need to find what the 6.5% sales tax is and add it to our original price. to find the sales tax number in dollars we need to set up our formula. The easiest formula is to use a proportion. X is out of 413 = 6.5% is out of 100%. X/413=6.5/100. We can then cross multiply then divide. 6.5 times 413=2,684.5. then divide 2684.5÷100= 26.845.
we need to round up to the nearest cent since we are working with dollars and cents 26.85. 26.85 is 6.5% of the price of the bike which is 413. Now we just simply add the tax to the original price and we get the cost. 413+26.85=439.85