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2 years ago

Write and solve an equation for the following.

Mathematics

2 answers:

Alenkinab [10]2 years ago

5 0

Answer:

4+ $\frac{1}{2}$ x = 3

Step-by-step explanation:

4 + $\frac{1}{2}$ x = 3 (subtract 4 from both sides)

$\frac{1}{2}$ x = -1 (multiply both sides by 2)

x = -2

amid [387]2 years ago

3 0

Answer:

4+ 1/2 x = 3

Step-by-step explanation:

X =-2

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Answer:

$222$ boys

Step-by-step explanation:

Let $x$ = total number of ninth graders. By knowing how many students there are in the grade, we can find for the number of boys.

$\frac{5}{6+5}x = 185$ (number of girls in ninth grade)

$\frac{5}{11}x = 185$

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To find for the number of boys, we can use substitution:

$\frac{6}{6+5}x = \frac{6}{11}(407)$

$=222$

∴ There are $222$ boys in the class.

Hope this helps :)

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