The point (x,y) is proportional to the point (2, 5).

Mathematics

1 answer:

Anna [14]2 years ago

3 0

Answer:

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Step-by-step explanation:

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The pie chart represents the proportions of how Henry spent the £720 he took on holiday.

Oksana_A [137]

Answer:

£124

Step-by-step explanation:

first of all, you're meant to add all the figures given on the pie chart, which is 29+137+58+62+74 and that will give you a total of 360 degrees

so, you say 360 degrees is equal to the total amount of money he spent, which is £720, what about 62 degrees

therefore, you just do (62×720)÷360

that will give you £124

6 0

1 year ago

Solve: 3x-5y= -15 using y=mx+b method. Show steps

Sliva [168]

3x-5y=-15 What you do to one side, you must do to the other.
-3x -3x
-5y=-3x-15

-5y=-3x - 15
-5 -5 -5

Final Answer: y=3/5x + 3

4 0

3 years ago

Read 2 more answers

I dont really know how to do soh cah toah. please help me find x.

Ipatiy [6.2K]

First notice that the triangle with sides $x,y,a$ and the triangle with sides $z,a+b,x$ are similar. This is true because the angle between sides $x,y$ in the smaller triangle is clearly $30^\circ$ , while the angle between sides $y,z$ in the larger triangle is clearly $60^\circ$ . So the triangles are similar with sides $x,y,a$ corresponding to $a+b,z,x$ , respectively.

Now both triangles are $30^\circ-60^\circ-90^\circ$ , which means there's a convenient ratio between its sides. If the length of the shortest leg is $\ell_1$ , then the length of the longer leg is $\ell_2=\sqrt3\ell_1$ and the hypotenuse has length $\ell_3=\sqrt{{\ell_1}^2+{\ell_2}^2}=2\ell_1$ .

Since $x$ is the shortest leg in the larger triangle, it follows that $a+b=2x$ , so $a+b=15=2x\implies x=\dfrac{15}2$