Please help it's urgent!Pls

Mathematics

2 answers:

Rufina [12.5K]3 years ago

8 0

Answer:

c may bbethe most accurate one l m 55% sure

natulia [17]3 years ago

6 0

Answer:

Its c fs :)

Step-by-step explanation:

Its c because x should be the exponent gl and hope this helps :)

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What is the value of x?<br><br> x-2/5=7

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SashulF [63]

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.

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