ALGEBRA 1 HONORS QUESTION:

2 answers:

8 0

The cost function that represents this scenario:
move for a flat fee $1.50 plus an additional $1.25 for each night.
the additional fee for each night represent x.
the equation should be:

a. c(x) = 1.50 + 1.25x

hope this help

IrinaVladis [17]3 years ago

4 0

The correct answer is A!
c(x) = 1.50 + 1.25x

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28 students in the class 75% pass how many students pass

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Answer:

21 students pass

Step-by-step explanation:

Firstly, you can set up the problem into an equation where the variable X would equal the number of students passing. You put X over the total number of students in the class, turning it into a fraction, then set it equal to the fraction $\frac{75}{100}$ (which is 75% represented as a fraction).

$\frac{X}{28} = \frac{75}{100}$

The fraction $\frac{75}{100}$ can be simplified, because 75 and 100 are both multiples of 25, so after canceling out the 25s you would be left with $\frac{3}{4}$ .

$\frac{X}{28} = \frac{3}{4}$

Next, you use the process of cross multiplication which is essentially just multiplying the denominators of both fractions (which would be 28 and 4 in this case) to each side of the equation.

$\frac{X}{28} * 28 * 4 = \frac{3}{4} * 4 * 28$