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4 years ago

I need help for this math question

Mathematics

1 answer:

Cerrena [4.2K]4 years ago

7 0

Answer:

Step-by-step explanation:

There are 150 students in grade 8

Write the ratio of grade 8 students in its lowest terms

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Answer the last one please answer fast

Oduvanchick [21]

Answer:

Step-by-step explanation:

Put the equation in the form ax+by+c=0:

$y\sqrt{3} =8x+\sqrt{3} \\=>8x-\sqrt{3} y+\sqrt{3} =0$

Check the solutions:

$(0,-1)$ :

$8(0)-\sqrt{3} (-1)+\sqrt{3} =2\sqrt{3}$

So this is not a solution.

( $(\sqrt{3} ,9)$ :

$8\sqrt{3} -9\sqrt{3} +\sqrt{3} =0$

So this is a solution

4 0

3 years ago

Find x when f (x)= 25

Westkost [7]

What is the equation? F(x) is y

4 0

3 years ago

Simplify 2ab/3cd×c²d²/ab²

gulaghasi [49]

$\frac{2ab}{3cd} \times \frac{c²d²}{ab²}$

$= \frac{2cd}{3b}$

$= (\frac{2}{3} ) \frac{cd}{b}$

$= 0.66 \frac{cd}{b}$

8 0

2 years ago

Can I get help on this

antoniya [11.8K]

Answer:

2/3

Step-by-step explanation:

Ratio is 2:3 since we have 6 and 9 for width. We can refer to 1:2:3 as 3:6:9, and apply the same thing for length 8 to where we have 4:8:12.

7 0

4 years ago

X/-2=4, X/3+13=13, Z/2+2=4 plz show ur work and explain how u did it

AVprozaik [17]

$\dfrac{x}{-2}=4\ \ \ |multiply\ both\ sides\ by\ (-2)\\\\(-2)\cdot\dfrac{x}{-2}=(-2)\cdot4\\\\\boxed{x=-8}\\\\\dfrac{x}{3}+13=13\ \ \ |subtract\ 13\ from\ both\ sides\\\\\dfrac{x}{3}+13-13=13-13\\\\\dfrac{x}{3}=0\ \ \ |multpily\ both\ sides\ by\ 3\\\\\not3^1\cdot\dfrac{x}{\not3_1}=0\\\\\boxed{x=0}$

$\dfrac{z}{2}+2=4\ \ \ |subtract\ 2\ from\ both\ sides\\\\\dfrac{z}{2}+2-2=4-2\\\\\dfrac{z}{2}=2\ \ \ \ |multiply\ both\ sides\ by\ 2\\\\\not2^1\cdot\dfrac{z}{\not2_1}=2\cdot2\\\\\boxed{z=4}$

6 0

3 years ago