Answer:
7 girls to 6 boys
Step-by-step explanation:
To solve this question, we can use the tangent. The adjacent leg to the angle will have a length of 9.3 and the opposite leg will have a length of 7.4
Using these, we can create an equation to solve for unknown angle (let it be x) using the tangent.
Take the inverse tangent, or arc tangent, on both sides.
Your answer is the first choice. I hope this helps! :)
3(y - ¹/₇) - y = 4(2 - y)
3(y) + 3(⁻¹/₇) - y = 4(2) + 4(-y)
3y + (⁻³/₇) - y = 8 + (-4y)
3y - ³/₇ - y = 8 - 4y
3y - y - ³/₇ = 8 - 4y
2y - ³/₇ = 8 - 4y
<u>+ 4y + 4y</u>
6y - ³/₇ = 8
<u> + ³/₇ + ³/₇
</u> <u>6y</u> = <u>8³/₇
</u> 6 6<u>
</u> y = 1¹⁷/₄₂
Answer:
Step-by-step explanation:
- The equation can be simplified by doing some algebra.
- Firstly, it is advisable to add 1 both sides of the equation. This would produce the following result: .
- Secondly, we multiply both sides by (x), and we obtain .
- Finally, dividing both sides by 5 gives us the value of x, .
- The solution is a specific value to x (which can be represented graphically by a straight line on x=-2/5, as shown in the picture attached).